UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 10-Q
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended March 31,September 30, 2022
OR
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from _____________ to ______________
Commission file number 1-03480
MDU RESOURCES GROUP INC
(Exact name of registrant as specified in its charter)
Delaware30-1133956
(State or other jurisdiction of
incorporation or organization)
(I.R.S. Employer Identification No.)

1200 West Century Avenue
P.O. Box 5650
Bismarck, North Dakota 58506-5650
(Address of principal executive offices)
(Zip Code)
(701) 530-1000
(Registrant's telephone number, including area code)
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading symbol(s)Name of each exchange on which registered
Common Stock, par value $1.00 per shareMDUNew York Stock Exchange
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes  No .
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes  No .
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.
Large Accelerated FilerAccelerated Filer
Non-Accelerated FilerSmaller Reporting Company
Emerging Growth Company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes  No .
Indicate the number of shares outstanding of each of the issuer's classes of common stock, as of April 28,October 27, 2022: 203,350,740 shares.
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Definitions
The following abbreviations and acronyms used in this Form 10-Q are defined below:
Abbreviation or Acronym
2021 Annual ReportCompany's Annual Report on Form 10-K for the year ended December 31, 2021
AFUDCAllowance for funds used during construction
ASCFASB Accounting Standards Codification
ASUFASB Accounting Standards Update
CascadeCascade Natural Gas Corporation, an indirect wholly owned subsidiary of MDU Energy Capital
CentennialCentennial Energy Holdings, Inc., a direct wholly owned subsidiary of the Company
Centennial CapitalCentennial Holdings Capital LLC, a direct wholly owned subsidiary of Centennial
Coincident Load FactorThe discount from peak requirements when the Company's peak is at a time different from the MISO system peak for the winter season.
CompanyMDU Resources Group, Inc.
COVID-19Coronavirus disease 2019. In March 2020, the World Health Organization declared the COVID-19 outbreak a pandemic and the President of the United States declared the COVID-19 outbreak a national emergency.
Coyote CreekCoyote Creek Mining Company, LLC, a subsidiary of The North American Coal Corporation
Coyote Station427-MW coal-fired electric generating facility near Beulah, North Dakota (25 percent ownership)
Diamond WillowDiamond Willow Wind Farm located in Montana
dkDecatherm
Dodd-Frank ActDodd-Frank Wall Street Reform and Consumer Protection Act
EPAUnited States Environmental Protection Agency
Exchange ActSecurities Exchange Act of 1934, as amended
FASBFinancial Accounting Standards Board
FERCFederal Energy Regulatory Commission
Federal ReserveFederal Reserve System, the central banking system of the United States.
FidelityFidelity Exploration & Production Company, a direct wholly owned subsidiary of WBI Holdings (previously referred to as the Company's exploration and production segment)
GAAPAccounting principles generally accepted in the United States of America
GHGGreenhouse gas
Great PlainsGreat Plains Natural Gas Co., a public utility division of Montana-Dakota
IntermountainIntermountain Gas Company, an indirect wholly owned subsidiary of MDU Energy Capital
IRAInflation Reduction Act of 2022
IRSInternal Revenue Service
Knife RiverKnife River Corporation, a direct wholly owned subsidiary of Centennial
kWhKilowatt-hour
kVKilovolt
LIBORLondon Inter-bank Offered Rate
MDU Construction ServicesMDU Construction Services Group, Inc., a direct wholly owned subsidiary of Centennial
MDU Energy CapitalMDU Energy Capital, LLC, a direct wholly owned subsidiary of the Company
MISOMidcontinent Independent System Operator, Inc., the organization that provides open-access transmission services and monitors the high-voltage transmission system in the Midwest United States and Manitoba, Canada and a southern United States region which includes much of Arkansas, Mississippi, and Louisiana.
MMcfMillion cubic feet
MMdkMillion dk
MNPUCMinnesota Public Utilities Commission
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Montana-DakotaMontana-Dakota Utilities Co., a direct wholly owned subsidiary of MDU Energy Capital
MWMegawatt
NDDEQNorth Dakota Department of Environmental Quality
NDPSCNorth Dakota Public Service Commission
NERCNorth American Electric Reliability Corporation
OilIncludes crude oil and condensate
PHMSAPipeline and Hazardous Materials Safety Administration
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Regional Haze RuleThe EPA developed the Regional Haze Rule requiring states to develop and implement comprehensive plans to reduce human-caused regional haze in designated areas such as national parks and wilderness areas.
SDPUCSouth Dakota Public Utilities Commission
SECUnited States Securities and Exchange Commission
SOFRSecured Overnight Financing Rate
VIEVariable interest entity
Washington DOEWashington State Department of Ecology
WBI EnergyWBI Energy, Inc., an indirect wholly owned subsidiary of WBI Holdings
WBI HoldingsWBI Holdings, Inc., a direct wholly owned subsidiary of Centennial
WUTCWashington Utilities and Transportation Commission
Wygen III100-MW coal-fired electric generating facility near Gillette, Wyoming (25 percent ownership)
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Introduction
The Company's mission is to deliver superior value to stakeholders by providing essential infrastructure and services to America. The Company isgenerates, transmits and distributes electricity and provides natural gas distribution, transportation and storage services that are regulated by state public service commissions and/or the FERC. The Company also provides construction services to a regulated energy deliveryvariety of industries, including commercial, industrial and utility customers, and provides construction materials through aggregate mining and services business. Its principal executive offices are located at 1200 West Century Avenue, P.O. Box 5650, Bismarck, North Dakota 58506-5650, telephone (701) 530-1000.marketing of related products, such as ready-mix concrete, asphalt and asphalt oil.
Montana-Dakota was incorporated under the state laws of Delaware in 1924. The Company was incorporated under the state laws of Delaware in 2018 upon the completion of an internal holding company reorganization, which resulted in Montana-Dakota becoming a subsidiary of the Company. Its principal executive offices are located at 1200 West Century Avenue, P.O. Box 5650, Bismarck, North Dakota 58506-5650, telephone (701) 530-1000.
On August 4, 2022, the Company announced its Board of Directors unanimously approved a plan to pursue the separation of Knife River from the Company. The Company's missionseparation is planned as a tax-free spinoff transaction to deliver superiorthe Company’s stockholders for U.S. federal income tax purposes. The separation is expected to result in two independent, publicly traded companies: (1) MDU Resources Group, Inc., the existing company and (2) Knife River, a construction materials and contracting company.
As the next step of the Company’s strategic planning, the Board of Directors has unanimously determined the best way to optimize value would be to stakeholders by providing essential infrastructurecreate two pure-play companies: a leading construction materials company and services to America. The Company's strategy is to deliver superior value with a two-platform model of regulated energy delivery and construction materials and services, while pursuing organic growth opportunities andcompany. Accordingly, the board has authorized management to commence a strategic acquisitionsreview process for MDU Construction Services with the objective of well-managed companies and properties. Eachachieving the board’s goal of creating two pure-play public companies. For more information on the Company's platforms are comprised of different operating segments. Most of these segments experience seasonality related to the industries in which they operate. The two-platform approach helps balance this seasonality and the risks associated with each type of industry. Through its regulated energy delivery platform, the Company generates, transmits and distributes electricity and provides natural gas distribution, transportation and storage services. These businesses are regulated by state public service commissions and/anticipated separation or the FERC. The construction materials and services platform provides construction services to a varietyproposed future structure of industries, including commercial, industrial and utility customers, and provides construction materials through aggregate mining and marketing of related products, such as ready-mix concrete, asphalt and asphalt oil.the companies, see Item 1A. Risk Factors.
The Company is organized into five reportable business segments. These business segments include: electric, natural gas distribution, pipeline, construction materials and contracting, and construction services. The Company's business segments are determined based on the Company's method of internal reporting, which generally segregates the strategic business units due to differences in products, services and regulation. The internal reporting of these segments is defined based on the reporting and review process used by the Company's chief executive officer.
The Company, through its wholly owned subsidiary, MDU Energy Capital, owns Montana-Dakota, Cascade and Intermountain. The electric segment is comprised of Montana-Dakota while the natural gas distribution segment is comprised of Montana-Dakota, Cascade and Intermountain.
The Company, through its wholly owned subsidiary, Centennial, owns WBI Energy, Knife River, MDU Construction Services and Centennial Capital. WBI Energy is the pipeline segment, Knife River is the construction materials and contracting segment, MDU Construction Services is the construction services segment and Centennial Capital is reflected in the Other category.
For more information on the Company's business segments, see Note 17 of the Notes to Consolidated Financial Statements.
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Part I -- Financial Information
Item 1. Financial Statements
MDU Resources Group, Inc.
Consolidated Statements of IncomeConsolidated Statements of IncomeConsolidated Statements of Income
(Unaudited)(Unaudited)(Unaudited)
Three Months EndedThree Months EndedNine Months Ended
March 31, September 30,
20222021 2022202120222021
(In thousands, except per share amounts) (In thousands, except per share amounts)
Operating revenues:Operating revenues: Operating revenues: 
Electric, natural gas distribution and regulated pipelineElectric, natural gas distribution and regulated pipeline$553,456 $442,381 Electric, natural gas distribution and regulated pipeline$263,614 $237,065 $1,140,528 $940,017 
Non-regulated pipeline, construction materials and contracting, construction services and otherNon-regulated pipeline, construction materials and contracting, construction services and other863,103 785,557 Non-regulated pipeline, construction materials and contracting, construction services and other1,713,592 1,348,948 3,974,158 3,297,591 
Total operating revenues Total operating revenues 1,416,559 1,227,938 Total operating revenues 1,977,206 1,586,013 5,114,686 4,237,608 
Operating expenses:Operating expenses: Operating expenses: 
Operation and maintenance:Operation and maintenance: Operation and maintenance: 
Electric, natural gas distribution and regulated pipelineElectric, natural gas distribution and regulated pipeline97,665 94,333 Electric, natural gas distribution and regulated pipeline89,502 90,058 281,430 273,796 
Non-regulated pipeline, construction materials and contracting, construction services and otherNon-regulated pipeline, construction materials and contracting, construction services and other810,232 717,326 Non-regulated pipeline, construction materials and contracting, construction services and other1,457,350 1,122,840 3,490,120 2,828,557 
Total operation and maintenanceTotal operation and maintenance907,897 811,659 Total operation and maintenance1,546,852 1,212,898 3,771,550 3,102,353 
Purchased natural gas soldPurchased natural gas sold267,353 176,237 Purchased natural gas sold61,863 41,135 444,527 280,584 
Depreciation, depletion and amortizationDepreciation, depletion and amortization80,121 73,723 Depreciation, depletion and amortization82,293 75,229 247,173 222,613 
Taxes, other than incomeTaxes, other than income67,484 62,534 Taxes, other than income56,267 48,096 185,303 163,819 
Electric fuel and purchased powerElectric fuel and purchased power26,361 18,621 Electric fuel and purchased power20,080 19,486 68,370 56,216 
Total operating expensesTotal operating expenses1,349,216 1,142,774 Total operating expenses1,767,355 1,396,844 4,716,923 3,825,585 
Operating incomeOperating income67,343 85,164 Operating income209,851 189,169 397,763 412,023 
Other income (expense)Other income (expense)(2,400)3,354 Other income (expense)4,769 5,930 (1,877)18,310 
Interest expenseInterest expense25,260 23,453 Interest expense31,369 23,389 84,741 70,224 
Income before income taxesIncome before income taxes39,683 65,065 Income before income taxes183,251 171,710 311,145 360,109 
Income taxesIncome taxes7,950 12,949 Income taxes35,318 32,748 60,847 68,860 
Income from continuing operationsIncome from continuing operations31,733 52,116 Income from continuing operations147,933 138,962 250,298 291,249 
Income from discontinued operations, net of tax30 15 
Discontinued operations, net of taxDiscontinued operations, net of tax38 314 103 348 
Net incomeNet income$31,763 $52,131 Net income$147,971 $139,276 $250,401 $291,597 
Earnings per share - basic:Earnings per share - basic: Earnings per share - basic: 
Income from continuing operationsIncome from continuing operations$.16 $.26 Income from continuing operations$.73 $.68 $1.23 $1.44 
Discontinued operations, net of taxDiscontinued operations, net of tax— — Discontinued operations, net of tax— — — — 
Earnings per share - basicEarnings per share - basic$.16 $.26 Earnings per share - basic$.73 $.68 $1.23 $1.44 
Earnings per share - diluted:Earnings per share - diluted: Earnings per share - diluted: 
Income from continuing operationsIncome from continuing operations$.16 $.26 Income from continuing operations$.73 $.68 $1.23 $1.44 
Discontinued operations, net of taxDiscontinued operations, net of tax— — Discontinued operations, net of tax— — — — 
Earnings per share - dilutedEarnings per share - diluted$.16 $.26 Earnings per share - diluted$.73 $.68 $1.23 $1.44 
Weighted average common shares outstanding - basicWeighted average common shares outstanding - basic203,351 200,708 Weighted average common shares outstanding - basic203,351 202,863 203,351 201,647 
Weighted average common shares outstanding - dilutedWeighted average common shares outstanding - diluted203,391 200,952 Weighted average common shares outstanding - diluted203,644 203,190 203,407 201,955 
The accompanying notes are an integral part of these consolidated financial statements.
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MDU Resources Group, Inc.MDU Resources Group, Inc.MDU Resources Group, Inc.
Consolidated Statements of Comprehensive IncomeConsolidated Statements of Comprehensive IncomeConsolidated Statements of Comprehensive Income
(Unaudited)(Unaudited)(Unaudited)
Three Months EndedThree Months EndedNine Months Ended
March 31, September 30,
20222021 2022202120222021
(In thousands) (In thousands)
Net incomeNet income$31,763 $52,131 Net income$147,971 $139,276 $250,401 $291,597 
Other comprehensive income:
Reclassification adjustment for loss on derivative instruments included in net income, net of tax of $36 and $37 for the three months ended in 2022 and 2021, respectively112 111 
Amortization of postretirement liability losses included in net periodic benefit credit, net of tax of $164 and $151 for the three months ended in 2022 and 2021, respectively445 466 
Other comprehensive income (loss):Other comprehensive income (loss):
Reclassification adjustment for loss on derivative instruments included in net income, net of tax of $37 and $36 for the three months ended and $109 and $109 for the nine months ended in 2022 and 2021, respectivelyReclassification adjustment for loss on derivative instruments included in net income, net of tax of $37 and $36 for the three months ended and $109 and $109 for the nine months ended in 2022 and 2021, respectively111 111 334 334 
Postretirement liability adjustment:Postretirement liability adjustment:
Amortization of postretirement liability losses included in net periodic benefit credit, net of tax of $148 and $151 for the three months ended and $460 and $462 for the nine months ended in 2022 and 2021, respectivelyAmortization of postretirement liability losses included in net periodic benefit credit, net of tax of $148 and $151 for the three months ended and $460 and $462 for the nine months ended in 2022 and 2021, respectively461 466 1,367 1,389 
Reclassification of postretirement liability adjustment from regulatory asset, net of tax of $— and $— for the three months ended and $(1,086) and $— for the nine months ended in 2022 and 2021, respectivelyReclassification of postretirement liability adjustment from regulatory asset, net of tax of $— and $— for the three months ended and $(1,086) and $— for the nine months ended in 2022 and 2021, respectively— — (3,265)— 
Postretirement liability adjustmentPostretirement liability adjustment461 466 (1,898)1,389 
Net unrealized loss on available-for-sale investments:Net unrealized loss on available-for-sale investments:Net unrealized loss on available-for-sale investments:
Net unrealized loss on available-for-sale investments arising during the period, net of tax of $(85) and $(12) for the three months ended in 2022 and 2021, respectively(320)(44)
Reclassification adjustment for loss on available-for-sale investments included in net income, net of tax of $8 and $9 for the three months ended in 2022 and 2021, respectively32 35 
Net unrealized loss on available-for-sale investments arising during the period, net of tax of $(88) and $(15) for the three months ended and $(207) and $(40) for the nine months ended in 2022 and 2021, respectivelyNet unrealized loss on available-for-sale investments arising during the period, net of tax of $(88) and $(15) for the three months ended and $(207) and $(40) for the nine months ended in 2022 and 2021, respectively(329)(54)(777)(150)
Reclassification adjustment for loss on available-for-sale investments included in net income, net of tax of $12 and $6 for the three months ended and $27 and $21 for the nine months ended in 2022 and 2021, respectivelyReclassification adjustment for loss on available-for-sale investments included in net income, net of tax of $12 and $6 for the three months ended and $27 and $21 for the nine months ended in 2022 and 2021, respectively42 20 99 80 
Net unrealized loss on available-for-sale investmentsNet unrealized loss on available-for-sale investments(288)(9)Net unrealized loss on available-for-sale investments(287)(34)(678)(70)
Other comprehensive income269 568 
Other comprehensive income (loss)Other comprehensive income (loss)285 543 (2,242)1,653 
Comprehensive income attributable to common stockholdersComprehensive income attributable to common stockholders$32,032 $52,699 Comprehensive income attributable to common stockholders$148,256 $139,819 $248,159 $293,250 
The accompanying notes are an integral part of these consolidated financial statements.
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MDU Resources Group, Inc.MDU Resources Group, Inc.MDU Resources Group, Inc.
Consolidated Balance SheetsConsolidated Balance SheetsConsolidated Balance Sheets
(Unaudited)(Unaudited)(Unaudited)
March 31, 2022March 31, 2021December 31, 2021 September 30, 2022September 30, 2021December 31, 2021
AssetsAssets(In thousands, except shares and per share amounts)Assets(In thousands, except shares and per share amounts)
Current assets:Current assets: Current assets: 
Cash and cash equivalentsCash and cash equivalents$64,904 $55,094 $54,161 Cash and cash equivalents$74,620 $57,241 $54,161 
Receivables, netReceivables, net948,024 784,582 946,741 Receivables, net1,298,019 979,862 946,741 
InventoriesInventories380,316 316,737 335,609 Inventories398,642 312,285 335,609 
Current regulatory assetsCurrent regulatory assets89,078 98,452 118,691 Current regulatory assets148,160 133,135 118,691 
Prepayments and other current assetsPrepayments and other current assets89,586 68,409 95,741 Prepayments and other current assets104,850 83,364 95,741 
Total current assetsTotal current assets1,571,908 1,323,274 1,550,943 Total current assets2,024,291 1,565,887 1,550,943 
Noncurrent assets:Noncurrent assets: Noncurrent assets: 
Property, plant and equipmentProperty, plant and equipment8,958,600 8,288,879 8,972,849 Property, plant and equipment9,257,067 8,634,737 8,972,849 
Less accumulated depreciation, depletion and amortizationLess accumulated depreciation, depletion and amortization3,158,091 3,096,371 3,216,461 Less accumulated depreciation, depletion and amortization3,263,217 3,175,756 3,216,461 
Net property, plant and equipmentNet property, plant and equipment5,800,509 5,192,508 5,756,388 Net property, plant and equipment5,993,850 5,458,981 5,756,388 
GoodwillGoodwill763,262 714,963 765,386 Goodwill763,262 717,646 765,386 
Other intangible assets, netOther intangible assets, net21,389 23,961 22,578 Other intangible assets, net18,745 22,241 22,578 
Regulatory assetsRegulatory assets359,228 379,917 357,851 Regulatory assets344,442 379,245 357,851 
InvestmentsInvestments174,555 167,741 175,476 Investments157,860 171,859 175,476 
Operating lease right-of-use assetsOperating lease right-of-use assets119,845 116,663 124,138 Operating lease right-of-use assets119,586 109,439 124,138 
OtherOther160,019 150,248 157,675 Other185,094 143,565 157,675 
Total noncurrent assets Total noncurrent assets 7,398,807 6,746,001 7,359,492 Total noncurrent assets 7,582,839 7,002,976 7,359,492 
Total assetsTotal assets$8,970,715 $8,069,275 $8,910,435 Total assets$9,607,130 $8,568,863 $8,910,435 
Liabilities and Stockholders' EquityLiabilities and Stockholders' Equity Liabilities and Stockholders' Equity 
Current liabilities:Current liabilities: Current liabilities: 
Short-term borrowingsShort-term borrowings$99,958 $50,000 $— Short-term borrowings$100,000 $50,000 $— 
Long-term debt due within one yearLong-term debt due within one year147,953 1,552 148,053 Long-term debt due within one year214,453 1,548 148,053 
Accounts payableAccounts payable449,746 379,348 478,933 Accounts payable630,699 525,704 478,933 
Taxes payableTaxes payable90,572 88,711 80,372 Taxes payable93,565 87,455 80,372 
Dividends payableDividends payable44,229 42,740 44,229 Dividends payable44,229 43,212 44,229 
Accrued compensationAccrued compensation64,796 69,612 81,904 Accrued compensation99,824 105,867 81,904 
Operating lease liabilities due within one yearOperating lease liabilities due within one year34,618 32,562 35,368 Operating lease liabilities due within one year34,569 30,502 35,368 
Regulatory liabilities due within one yearRegulatory liabilities due within one year31,186 34,266 16,303 Regulatory liabilities due within one year18,599 16,491 16,303 
Other accrued liabilitiesOther accrued liabilities203,670 201,246 207,078 Other accrued liabilities232,364 212,140 207,078 
Total current liabilities Total current liabilities 1,166,728 900,037 1,092,240 Total current liabilities 1,468,302 1,072,919 1,092,240 
Noncurrent liabilities:Noncurrent liabilities: Noncurrent liabilities: 
Long-term debtLong-term debt2,599,810 2,251,722 2,593,847 Long-term debt2,773,999 2,326,718 2,593,847 
Deferred income taxesDeferred income taxes587,940 528,551 591,962 Deferred income taxes617,996 557,582 591,962 
Asset retirement obligationsAsset retirement obligations463,080 445,170 458,061 Asset retirement obligations472,931 455,522 458,061 
Regulatory liabilitiesRegulatory liabilities433,628 429,060 428,790 Regulatory liabilities433,212 426,141 428,790 
Operating lease liabilitiesOperating lease liabilities85,874 84,494 89,253 Operating lease liabilities85,884 79,397 89,253 
OtherOther272,937 329,935 273,408 Other262,948 318,306 273,408 
Total noncurrent liabilities Total noncurrent liabilities 4,443,269 4,068,932 4,435,321 Total noncurrent liabilities 4,646,970 4,163,666 4,435,321 
Commitments and contingenciesCommitments and contingencies0Commitments and contingencies
Stockholders' equity:
Stockholders' equity:
 
Stockholders' equity:
 
Common stock
Authorized - 500,000,000 shares, $1.00 par value
Shares issued - 203,889,661 at March 31, 2022, 201,733,458 at
March 31, 2021 and 203,889,661 at December 31, 2021
203,889 201,733 203,889 
Common stock
Authorized - 500,000,000 shares, $1.00 par value
Shares issued - 203,889,661 at September 30, 2022, 203,889,661 at
September 30, 2021 and 203,889,661 at December 31, 2021
Common stock
Authorized - 500,000,000 shares, $1.00 par value
Shares issued - 203,889,661 at September 30, 2022, 203,889,661 at
September 30, 2021 and 203,889,661 at December 31, 2021
203,889 203,889 203,889 
Other paid-in capitalOther paid-in capital1,451,464 1,382,158 1,461,205 Other paid-in capital1,455,241 1,458,208 1,461,205 
Retained earningsRetained earnings1,749,726 1,567,551 1,762,410 Retained earnings1,879,600 1,720,232 1,762,410 
Accumulated other comprehensive lossAccumulated other comprehensive loss(40,735)(47,510)(41,004)Accumulated other comprehensive loss(43,246)(46,425)(41,004)
Treasury stock at cost - 538,921 sharesTreasury stock at cost - 538,921 shares(3,626)(3,626)(3,626)Treasury stock at cost - 538,921 shares(3,626)(3,626)(3,626)
Total stockholders' equityTotal stockholders' equity3,360,718 3,100,306 3,382,874 Total stockholders' equity3,491,858 3,332,278 3,382,874 
Total liabilities and stockholders' equity Total liabilities and stockholders' equity $8,970,715 $8,069,275 $8,910,435 Total liabilities and stockholders' equity $9,607,130 $8,568,863 $8,910,435 
The accompanying notes are an integral part of these consolidated financial statements.
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MDU Resources Group, Inc.
Consolidated Statements of Equity
(Unaudited)
Other
Paid-in
Capital
Retained EarningsAccumu-lated
Other
Compre-hensive
Loss
Common StockTreasury Stock
SharesAmountSharesAmountTotal
 (In thousands, except shares)
At December 31, 2021203,889,661 $203,889 $1,461,205 $1,762,410 $(41,004)(538,921)$(3,626)$3,382,874 
Net income— — — 31,763 — — — 31,763 
Other comprehensive income— — — — 269 — — 269 
Dividends declared on common stock— — — (44,447)— — — (44,447)
Stock-based compensation— — 2,689 — — — — 2,689 
Repurchase of common stock— — — — — (266,821)(7,399)(7,399)
Issuance of common stock upon vesting of stock-based compensation, net of shares used for tax withholdings— — (12,303)— — 266,821 7,399 (4,904)
Issuance of common stock— — (127)— — — — (127)
At March 31, 2022203,889,661 $203,889 $1,451,464 $1,749,726 $(40,735)(538,921)$(3,626)$3,360,718 

MDU Resources Group, Inc.MDU Resources Group, Inc.
Consolidated Statements of EquityConsolidated Statements of Equity
(Unaudited)(Unaudited)
Other
Paid-in
Capital
Retained EarningsAccumu-lated
Other
Compre-hensive
Loss
Common StockOther
Paid-in
Capital
Retained EarningsAccumu-lated
Other
Compre-hensive
Loss
Treasury Stock
SharesAmountSharesAmountTotal
(In thousands, except shares)
Other
Paid-in
Capital
Retained EarningsAccumu-lated
Other
Compre-hensive
Loss
Common StockTreasury Stock
SharesAmountSharesAmountTotal
(In thousands, except shares)
At December 31, 2020201,061,198 $201,061 $1,371,385 $1,558,363 $(48,078)(538,921)$(3,626)$3,079,105 
At December 31, 2021At December 31, 2021203,889,661 $203,889 $1,461,205 $1,762,410 $(41,004)(538,921)$(3,626)$3,382,874 
Net incomeNet income— — — 52,131 — — — 52,131 Net income— — — 31,763 — — — 31,763 
Other comprehensive incomeOther comprehensive income— — — — 568 — — 568 Other comprehensive income— — — — 269 — — 269 
Dividends declared on common stockDividends declared on common stock— — — (42,943)— — — (42,943)Dividends declared on common stock— — — (44,447)— — — (44,447)
Stock-based compensationStock-based compensation— — 2,574 — — — — 2,574 Stock-based compensation— — 2,689 — — — — 2,689 
Repurchase of common stockRepurchase of common stock— — — — — (392,294)(6,701)(6,701)Repurchase of common stock— — — — — (266,821)(7,399)(7,399)
Issuance of common stock upon vesting of stock-based compensation, net of shares used for tax withholdingsIssuance of common stock upon vesting of stock-based compensation, net of shares used for tax withholdings— — (10,828)— — 392,294 6,701 (4,127)Issuance of common stock upon vesting of stock-based compensation, net of shares used for tax withholdings— — (12,303)— — 266,821 7,399 (4,904)
Issuance of common stockIssuance of common stock672,260 672 19,027 — — — — 19,699 Issuance of common stock— — (127)— — — — (127)
At March 31, 2021201,733,458 $201,733 $1,382,158 $1,567,551 $(47,510)(538,921)$(3,626)$3,100,306 
At March 31, 2022At March 31, 2022203,889,661 $203,889 $1,451,464 $1,749,726 $(40,735)(538,921)$(3,626)$3,360,718 
Net incomeNet income— — — 70,667 — — — 70,667 
Other comprehensive lossOther comprehensive loss— — — — (2,796)— — (2,796)
Dividends declared on common stockDividends declared on common stock— — — (44,446)— — — (44,446)
Stock-based compensationStock-based compensation— — 2,689 — — — — 2,689 
Issuance of common stockIssuance of common stock— — (22)— — — — (22)
At June 30, 2022At June 30, 2022203,889,661 $203,889 $1,454,131 $1,775,947 $(43,531)(538,921)$(3,626)$3,386,810 
Net incomeNet income— — — 147,971 — — — 147,971 
Other comprehensive incomeOther comprehensive income— — — — 285 — — 285 
Dividends declared on common stockDividends declared on common stock— — — (44,318)— — — (44,318)
Stock-based compensationStock-based compensation— — 1,110 — — — — 1,110 
At September 30, 2022At September 30, 2022203,889,661 $203,889 $1,455,241 $1,879,600 $(43,246)(538,921)$(3,626)$3,491,858 
The accompanying notes are an integral part of these consolidated financial statements.
9

Index
MDU Resources Group, Inc.
Consolidated Statements of Cash Flows
(Unaudited)
Three Months Ended
 March 31,
 20222021
 (In thousands)
Operating activities:  
Net income$31,763 $52,131 
Income from discontinued operations, net of tax30 15 
Income from continuing operations31,733 52,116 
Adjustments to reconcile net income to net cash provided by operating activities:  
Depreciation, depletion and amortization80,121 73,723 
Deferred income taxes(6,466)9,843 
Provision for credit losses1,735 (317)
Amortization of debt issuance costs341 332 
Employee stock-based compensation costs2,689 2,574 
Pension & postretirement benefit plan net periodic benefit credit(1,491)(1,226)
Unrealized losses on investments5,147 529 
Gains on sales of assets(3,136)(2,919)
Changes in current assets and liabilities, net of acquisitions: 
Receivables(5,723)89,724 
Inventories(44,080)(25,613)
Other current assets34,491 (46,837)
Accounts payable2,980 (41,965)
Other current liabilities13,086 (13,977)
Pension & postretirement benefit plan contributions(149)(119)
Other noncurrent changes1,139 (223)
Net cash provided by continuing operations112,417 95,645 
Net cash used in discontinued operations(7)(25)
Net cash provided by operating activities112,410 95,620 
Investing activities:  
Capital expenditures(150,288)(111,091)
Acquisitions, net of cash acquired(524)(1,023)
Net proceeds from sale or disposition of property and other4,586 9,035 
Investments(4,442)(3,248)
Net cash used in investing activities(150,668)(106,327)
Financing activities:  
Issuance of short-term borrowings100,000 50,000 
Repayment of short-term borrowings— (50,000)
Issuance of long-term debt150,000 93,298 
Repayment of long-term debt(143,622)(53,301)
Debt issuance costs(718)(3)
Net proceeds from issuance of common stock(127)19,699 
Dividends paid(44,229)(42,611)
Repurchase of common stock(7,399)(6,701)
Tax withholding on stock-based compensation(4,904)(4,127)
Net cash provided by financing activities49,001 6,254 
Increase (decrease) in cash and cash equivalents10,743 (4,453)
Cash and cash equivalents -- beginning of year54,161 59,547 
Cash and cash equivalents -- end of period$64,904 $55,094 

MDU Resources Group, Inc.
Consolidated Statements of Equity
(Unaudited)
Other
Paid-in
Capital
Retained EarningsAccumu-lated
Other
Compre-hensive
Loss
Common StockTreasury Stock
SharesAmountSharesAmountTotal
 (In thousands, except shares)
At December 31, 2020201,061,198 $201,061 $1,371,385 $1,558,363 $(48,078)(538,921)$(3,626)$3,079,105 
Net income— — — 52,131 — — — 52,131 
Other comprehensive income— — — — 568 — — 568 
Dividends declared on common stock— — — (42,943)— — — (42,943)
Stock-based compensation— — 2,574 — — — — 2,574 
Repurchase of common stock— — — — — (392,294)(6,701)(6,701)
Issuance of common stock upon vesting of stock-based compensation, net of shares used for tax withholdings— — (10,828)— — 392,294 6,701 (4,127)
Issuance of common stock672,260 672 19,027 — — — — 19,699 
At March 31, 2021201,733,458 $201,733 $1,382,158 $1,567,551 $(47,510)(538,921)$(3,626)$3,100,306 
Net income— — — 100,190 — — — 100,190 
Other comprehensive income— — — — 542 — — 542 
Dividends declared on common stock— — — (43,336)— — — (43,336)
Stock-based compensation— — 6,150 — — — — 6,150 
Issuance of common stock1,088,843 1,089 33,861 — — — — 34,950 
At June 30, 2021202,822,301 $202,822 $1,422,169 $1,624,405 $(46,968)(538,921)$(3,626)$3,198,802 
Net income— — — 139,276 — — — 139,276 
Other comprehensive income— — — — 543 — — 543 
Dividends declared on common stock— — — (43,449)— — — (43,449)
Stock-based compensation— — 2,925 — — — — 2,925 
Issuance of common stock1,067,360 1,067 33,114 — — — — 34,181 
At September 30, 2021203,889,661 $203,889 $1,458,208 $1,720,232 $(46,425)(538,921)$(3,626)$3,332,278 
The accompanying notes are an integral part of these consolidated financial statements.
10

Index
MDU Resources Group, Inc.
Consolidated Statements of Cash Flows
(Unaudited)
Nine Months Ended
 September 30,
 20222021
 (In thousands)
Operating activities:  
Net income$250,401 $291,597 
Discontinued operations, net of tax103 348 
Income from continuing operations250,298 291,249 
Adjustments to reconcile net income to net cash provided by operating activities:  
Depreciation, depletion and amortization247,173 222,613 
Deferred income taxes18,741 30,353 
Provision for credit losses3,258 (801)
Amortization of debt issuance costs1,080 997 
Employee stock-based compensation costs6,488 11,649 
Pension and postretirement benefit plan net periodic benefit credit(4,515)(3,690)
Unrealized (gains) losses on investments15,529 (4,408)
Gains on sales of assets(8,500)(10,518)
Changes in current assets and liabilities, net of acquisitions: 
Receivables(346,879)(103,637)
Inventories(60,670)(21,402)
Other current assets(31,405)(74,413)
Accounts payable148,456 33,173 
Other current liabilities62,106 14,175 
Pension and postretirement benefit plan contributions(375)(326)
Other noncurrent changes(15,835)(19,129)
Net cash provided by continuing operations284,950 365,885 
Net cash used in discontinued operations(17)(75)
Net cash provided by operating activities284,933 365,810 
Investing activities:  
Capital expenditures(463,002)(428,114)
Acquisitions, net of cash acquired450 (13,721)
Net proceeds from sale or disposition of property and other1,615 12,954 
Investments(4,411)(3,777)
Net cash used in investing activities(465,348)(432,658)
Financing activities:  
Issuance of short-term borrowings100,000 50,000 
Repayment of short-term borrowings— (50,000)
Issuance of long-term debt270,250 178,879 
Repayment of long-term debt(23,155)(63,835)
Debt issuance costs(1,082)(362)
Net proceeds from issuance of common stock(149)88,830 
Dividends paid(132,687)(128,142)
Repurchase of common stock(7,399)(6,701)
Tax withholding on stock-based compensation(4,904)(4,127)
Net cash provided by financing activities200,874 64,542 
Increase (decrease) in cash and cash equivalents20,459 (2,306)
Cash and cash equivalents -- beginning of year54,161 59,547 
Cash and cash equivalents -- end of period$74,620 $57,241 
The accompanying notes are an integral part of these consolidated financial statements.
11

Index
MDU Resources Group, Inc.
Notes to Consolidated
Financial Statements
March 31,September 30, 2022 and 2021
(Unaudited)
Note 1 - Basis of presentation
The accompanying consolidated interim financial statements were prepared in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Interim financial statements do not include all disclosures provided in annual financial statements and, accordingly, these financial statements should be read in conjunction with those appearing in the 2021 Annual Report. The information is unaudited but includes all adjustments that are, in the opinion of management, necessary for a fair presentation of the accompanying consolidated interim financial statements and are of a normal recurring nature. Depreciation, depletion and amortization expense is reported separately on the Consolidated Statements of Income and therefore is excluded from the other line items within operating expenses.
On August 4, 2022, the Company announced its Board of Directors unanimously approved a plan to pursue the separation of Knife River from the Company. The assets and liabilitiesseparation is planned as a tax-free spinoff transaction to the Company’s stockholders for U.S. federal income tax purposes. As the next step of the Company's discontinuedCompany’s strategic planning, on November 2, 2022, the board of directors unanimously determined the best way to optimize value would be to create two pure-play companies: a leading construction materials company and a regulated energy delivery company. Accordingly, the board has authorized management to commence a strategic review process for MDU Construction Services with the objective of achieving the board’s goal of creating two pure-play public companies.
Discontinued operations have been classified as held for sale and are included in prepayments and other current assets, noncurrent assets - other and other accrued liabilities oninclude the Consolidated Balance Sheets. The results and supporting activities of Fidelity and are shown in income from discontinued operations on the Consolidated Statements of Income. Unless otherwise indicated, the amounts presented in the accompanying notes to the consolidated financial statements relate to the Company's continuing operations.
In the fourth quarter of 2021, the Company made changes to the presentation of the Consolidated Statements of Cash Flows to provide further clarity on the sources and uses of net cash provided by operating activities and net cash provided by (used in) financing activities. Certain prior period amounts have been reclassified to conform to the current year presentation. These reclassifications did not impact total net cash provided by operating activities or net cash provided by financing activities for the threenine months ended March 31,September 30, 2021.
Management has also evaluated the impact of events occurring after March 31,September 30, 2022, up to the date of the issuance of these consolidated interim financial statements on May 5,November 3, 2022, that would require recognition or disclosure in the Consolidated Financial Statements.
12

Index
Note 2 - New accounting standards
The following table provides a brief description of the accounting pronouncements applicable to the Company and the potential impact on its Consolidated Financial Statements and/or disclosures:
StandardDescriptionEffective dateImpact on financial statements/disclosures
ASU 2021-10 - Government AssistanceIn November 2021, the FASB issued guidance on modifying the disclosure requirements to increase the transparency of government assistance including disclosure of the types of assistance, an entity's accounting for the assistance and the effect of the assistance on an entity's financial statements.January 1, 2022The Company is currently evaluating the impact the guidance will have on its disclosures for the year ended December 31, 2022.
ASU 2020-04 - Reference Rate ReformIn March 2020, the FASB issued optional guidance to ease the facilitation of the effects of reference rate reform on financial reporting. The guidance applies to certain contract modifications, hedging relationships and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. Beginning January 1, 2022, LIBOR or other discontinued reference rates cannot be applied to new contracts. New contracts will incorporate a new reference rate, which includes SOFR. LIBOR or other discontinued reference rates cannot be applied to contract modifications or hedging relationships entered into or evaluated after December 31, 2022. Existing contracts referencing LIBOR or other reference rates expected to be discontinued must identify a replacement rate by June 30, 2023.Effective as of March 12, 2020 and will continue through December 31, 2022The Company has updated its credit agreements to include language regarding the successor or alternate rate to LIBOR, and a review of other contracts and agreements is on-going. The Company does not expect the guidance to have a material impact on its results of operations, financial position, cash flows or disclosures.
Note 3 - Seasonality of operations
Some of the Company's operations are highly seasonal and revenues from, and certain expenses for, such operations may fluctuate significantly among quarterly periods. Accordingly, the interim results for particular businesses, and for the Company as a whole, may not be indicative of results for the full fiscal year.
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Index
Note 4 - Receivables and allowance for expected credit losses
Receivables consists primarily of trade receivables from the sale of goods and services, which are recorded at the invoiced amount, and contract assets, net of expected credit losses. For more information on contract assets, see Note 9. The Company's trade receivables are all due in 12 months or less. The total balance of receivables past due 90 days or more was $50.7$41.5 million, $33.9$37.9 million and $44.8 million at March 31,September 30, 2022 and 2021, and December 31, 2021, respectively.
The Company's expected credit losses are determined through a review using historical credit loss experience; changes in asset specific characteristics; current conditions; and reasonable and supportable future forecasts, among other specific account data, and is performed at least quarterly. The Company develops and documents its methodology to determine its allowance for expected credit losses at each of its reportable business segments. Risk characteristics used by the business segments may include customer mix, knowledge of customers and general economic conditions of the various local economies, among others. Specific account balances are written off when management determines the amounts to be uncollectible. Management has reviewed the balance reserved through the allowance for expected credit losses and believes it is reasonable.
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Index
Details of the Company's expected credit losses were as follows:
ElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
TotalElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
Total
(In thousands) (In thousands)
At December 31, 2021At December 31, 2021$269 $1,506 $$5,406 $2,533 $9,716 At December 31, 2021$269 $1,506 $$5,406 $2,533 $9,716 
Current expected credit loss provisionCurrent expected credit loss provision565 1,369 — (253)54 1,735 Current expected credit loss provision565 1,369 — (253)54 1,735 
Less write-offs charged against the allowanceLess write-offs charged against the allowance597 932 — 27 71 1,627 Less write-offs charged against the allowance597 932 — 27 71 1,627 
Credit loss recoveries collectedCredit loss recoveries collected124 180 — — 28 332 Credit loss recoveries collected124 180 — — 28 332 
At March 31, 2022At March 31, 2022$361 $2,123 $$5,126 $2,544 $10,156 At March 31, 2022$361 $2,123 $$5,126 $2,544 $10,156 
Current expected credit loss provisionCurrent expected credit loss provision113 92 — 12 292 509 
Less write-offs charged against the allowanceLess write-offs charged against the allowance234 939 — 108 104 1,385 
Credit loss recoveries collectedCredit loss recoveries collected108 177 — — — 285 
At June 30, 2022At June 30, 2022$348 $1,453 $$5,030 $2,732 $9,565 
Current expected credit loss provisionCurrent expected credit loss provision300 881 — (55)(111)1,015 
Less write-offs charged against the allowanceLess write-offs charged against the allowance399 1,822 — 75 152 2,448 
Credit loss recoveries collectedCredit loss recoveries collected85 169 — — 40 294 
At September 30, 2022At September 30, 2022$334 $681 $$4,900 $2,509 $8,426 
ElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
TotalElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
Total
(In thousands) (In thousands)
At December 31, 2020At December 31, 2020$899 $2,571 $$6,164 $5,722 $15,358 At December 31, 2020$899 $2,571 $$6,164 $5,722 $15,358 
Current expected credit loss provisionCurrent expected credit loss provision538 1,273 — (1,049)(1,079)(317)Current expected credit loss provision538 1,273 — (1,049)(1,079)(317)
Less write-offs charged against the allowanceLess write-offs charged against the allowance888 1,107 — 273 401 2,669 Less write-offs charged against the allowance888 1,107 — 273 401 2,669 
Credit loss recoveries collectedCredit loss recoveries collected129 213 — — — 342 Credit loss recoveries collected129 213 — — — 342 
At March 31, 2021At March 31, 2021$678 $2,950 $$4,842 $4,242 $12,714 At March 31, 2021$678 $2,950 $$4,842 $4,242 $12,714 
Current expected credit loss provisionCurrent expected credit loss provision(110)(103)— 11 (639)(841)
Less write-offs charged against the allowanceLess write-offs charged against the allowance341 787 — 232 64 1,424 
Credit loss recoveries collectedCredit loss recoveries collected100 199 — — — 299 
At June 30, 2021At June 30, 2021$327 $2,259 $$4,621 $3,539 $10,748 
Current expected credit loss provisionCurrent expected credit loss provision388 411 — 233 (675)357 
Less write-offs charged against the allowanceLess write-offs charged against the allowance525 1,178 — 184 265 2,152 
Credit loss recoveries collectedCredit loss recoveries collected92 168 — — 93 353 
At September 30, 2021At September 30, 2021$282 $1,660 $$4,670 $2,692 $9,306 
Note 5 - Inventories and natural gas in storage
Natural gas in storage for the Company's regulated operations is generally valued at lower of cost or market using the last-in, first-out method or lower of cost or net realizable value using the average cost or first-in, first-out method. The majority of all other inventories are valued at the lower of cost or net realizable value using the average cost method. The portion of the cost of natural gas in storage expected to be used within 12 months was included in inventories. Inventories on the Consolidated Balance Sheets were as follows:
March 31, 2022March 31, 2021December 31, 2021 September 30, 2022September 30, 2021December 31, 2021
(In thousands) (In thousands)
Aggregates held for resaleAggregates held for resale$195,489 $180,450 $184,363 Aggregates held for resale$198,711 $183,693 $184,363 
Asphalt oilAsphalt oil93,816 59,853 57,002 Asphalt oil56,609 32,964 57,002 
Natural gas in storage (current)Natural gas in storage (current)48,532 28,683 18,867 
Materials and suppliesMaterials and supplies35,967 26,481 30,629 Materials and supplies42,359 27,253 30,629 
Merchandise for resaleMerchandise for resale33,393 24,319 28,501 Merchandise for resale39,198 26,639 28,501 
Natural gas in storage (current)10,801 8,113 18,867 
OtherOther10,850 17,521 16,247 Other13,233 13,053 16,247 
TotalTotal$380,316 $316,737 $335,609 Total$398,642 $312,285 $335,609 
The remainder of natural gas in storage, which largely represents the cost of gas required to maintain pressure levels for normal operating purposes, was included in noncurrent assets - other and was $47.2 million at September 30, 2022 and $47.5 million at March 31, 2022 andboth September 30, 2021 and December 31, 2021.
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Index
Note 6 - Earnings per share
Basic earnings per share is computed by dividing net income by the weighted average number of shares of common stock outstanding during the applicable period. Diluted earnings per share is computed by dividing net income by the total of the weighted average number of shares of common stock outstanding during the applicable period, plus the effect of non-vested performance share awards and restricted stock units. Common stock outstanding includes issued shares less shares held in treasury. Net income was the same for both the basic and diluted earnings per share calculations. A reconciliation of the weighted average common shares outstanding used in the basic and diluted earnings per share calculations follows:
Three Months EndedThree Months EndedNine Months Ended
March 31,September 30,
202220212022202120222021
(In thousands, except per share amounts)(In thousands, except per share amounts)
Weighted average common shares outstanding - basicWeighted average common shares outstanding - basic203,351 200,708 Weighted average common shares outstanding - basic203,351 202,863 203,351 201,647 
Effect of dilutive performance share awards and restricted stock unitsEffect of dilutive performance share awards and restricted stock units40 244 Effect of dilutive performance share awards and restricted stock units293 327 56 308 
Weighted average common shares outstanding - dilutedWeighted average common shares outstanding - diluted203,391 200,952 Weighted average common shares outstanding - diluted203,644 203,190 203,407 201,955 
Shares excluded from the calculation of diluted earnings per shareShares excluded from the calculation of diluted earnings per share— — Shares excluded from the calculation of diluted earnings per share— — 77 — 
Dividends declared per common shareDividends declared per common share$.2175 $.2125 Dividends declared per common share$.2175 $.2125 $.6525 $.6375 
Note 7 - Equity
The Company currently has a shelf registration statement on file with the SEC, under which the Company may issue and sell any combination of common stock and debt securities. The Company may sell such securities if warranted by market conditions and the Company's capital requirements.
In August 2020, the Company amended the Distribution Agreement dated February 22, 2019, with J.P. Morgan Securities LLC and MUFG Securities Americas Inc., as sales agents. This agreement, as amended, allows the offering, issuance and sale of up to 6.4 million shares of the Company's common stock in connection with an "at-the-market" offering. The common stock may be offered for sale, from time to time, in accordance with the terms and conditions of this agreement. As of March 31,September 30, 2022, the Company had capacity to issue up to 3.6 million additional shares of common stock under the "at-the-market" offering program.
Details of the Company's "at-the-market" offering activity was as follows:
Three Months EndedThree Months EndedNine Months Ended
March 31,September 30,September 30,
202220212022202120222021
(In millions)(In millions)
Shares issuedShares issued— .7 Shares issued— 1.0 — 2.8 
Net proceeds *Net proceeds *$(.1)$19.7 **Net proceeds *$— $34.2 **$(.1)$88.8 **
*    Net proceeds include issuance costs of $127,000$— and $300,000$149,000 for the three and nine months ended March 31,September 30, 2022, respectively, and $425,000 and $1.2 million for the three and nine months ended September 30, 2021, respectivelyrespectively.
**    Net proceeds were used for capital expenditures.
15

Index
Note 8 - Accumulated other comprehensive loss
The after-tax changes in the components of accumulated other comprehensive loss were as follows:
Net Unrealized
Gain (Loss) on
Derivative
 Instruments
 Qualifying as
Hedges
Postretirement
 Liability
Adjustment
Net Unrealized
Gain (Loss) on
Available-for-sale
Investments
Total
Accumulated
 Other
Comprehensive
 Loss
Net Unrealized
Gain (Loss) on
Derivative
 Instruments
 Qualifying as
Hedges
Postretirement
 Liability
Adjustment
Net Unrealized
Gain (Loss) on
Available-for-sale
Investments
Total
Accumulated
 Other
Comprehensive
 Loss
(In thousands) (In thousands)
At December 31, 2021At December 31, 2021$(538)$(40,461)$(5)$(41,004)At December 31, 2021$(538)$(40,461)$(5)$(41,004)
Other comprehensive loss before reclassificationsOther comprehensive loss before reclassifications— — (320)(320)Other comprehensive loss before reclassifications— — (320)(320)
Amounts reclassified from accumulated other comprehensive lossAmounts reclassified from accumulated other comprehensive loss112 445 32 589 Amounts reclassified from accumulated other comprehensive loss112 445 32 589 
Net current-period other comprehensive income (loss)Net current-period other comprehensive income (loss)112 445 (288)269 Net current-period other comprehensive income (loss)112 445 (288)269 
At March 31, 2022At March 31, 2022$(426)$(40,016)$(293)$(40,735)At March 31, 2022$(426)$(40,016)$(293)$(40,735)
Other comprehensive loss before reclassificationsOther comprehensive loss before reclassifications— — (128)(128)
Amounts reclassified to accumulated other comprehensive loss from a regulatory assetAmounts reclassified to accumulated other comprehensive loss from a regulatory asset— (3,265)— (3,265)
Amounts reclassified from accumulated other comprehensive lossAmounts reclassified from accumulated other comprehensive loss111 461 25 597 
Net current-period other comprehensive income (loss)Net current-period other comprehensive income (loss)111 (2,804)(103)(2,796)
At June 30, 2022At June 30, 2022$(315)$(42,820)$(396)$(43,531)
Other comprehensive loss before reclassificationsOther comprehensive loss before reclassifications— — (329)(329)
Amounts reclassified from accumulated other comprehensive lossAmounts reclassified from accumulated other comprehensive loss111 461 42 614 
Net current-period other comprehensive income (loss)Net current-period other comprehensive income (loss)111 461 (287)285 
At September 30, 2022At September 30, 2022$(204)$(42,359)$(683)$(43,246)
Net Unrealized
Gain (Loss) on
Derivative
 Instruments
 Qualifying as
Hedges
Postretirement
 Liability
Adjustment
Net Unrealized
Gain (Loss) on
Available-for-sale
Investments
Total
Accumulated
 Other
Comprehensive
 Loss
 (In thousands)
At December 31, 2020$(984)$(47,207)$113 $(48,078)
Other comprehensive loss before reclassifications— — (44)(44)
Amounts reclassified from accumulated other comprehensive loss111 466 35 612 
Net current-period other comprehensive income (loss)111 466 (9)568 
At March 31, 2021$(873)$(46,741)$104 $(47,510)
Other comprehensive loss before reclassifications— — (52)(52)
Amounts reclassified from accumulated other comprehensive loss112 457 25 594 
Net current-period other comprehensive income (loss)112 457 (27)542 
At June 30, 2021$(761)$(46,284)$77 $(46,968)
Other comprehensive loss before reclassifications— — (54)(54)
Amounts reclassified from accumulated other comprehensive loss111 466 20 597 
Net current-period other comprehensive income (loss)111 466 (34)543 
At September 30, 2021$(650)$(45,818)$43 $(46,425)
1316

Index
Net Unrealized
Gain (Loss) on
Derivative
 Instruments
 Qualifying as
Hedges
Postretirement
 Liability
Adjustment
Net Unrealized
Gain (Loss) on
Available-for-sale
Investments
Total
Accumulated
 Other
Comprehensive
 Loss
 (In thousands)
At December 31, 2020$(984)$(47,207)$113 $(48,078)
Other comprehensive loss before reclassifications— — (44)(44)
Amounts reclassified from accumulated other comprehensive loss111 466 35 612 
Net current-period other comprehensive income (loss)111 466 (9)568 
At March 31, 2021$(873)$(46,741)$104 $(47,510)
The following amounts were reclassified out of accumulated other comprehensive loss into net income. The amounts presented in parenthesis indicate a decrease to net income on the Consolidated Statements of Income. The reclassifications were as follows:
Three Months EndedLocation on Consolidated
Statements of
Income
March 31,
20222021
(In thousands)
Reclassification adjustment for loss on derivative instruments included in net income$(148)$(148)Interest expense
36 37 Income taxes
(112)(111)
Amortization of postretirement liability losses included in net periodic benefit credit(609)(617)Other income
164 151 Income taxes
(445)(466)
Reclassification adjustment on available-for-sale investments included in net income(40)(44)Other income
Income taxes
(32)(35)
Total reclassifications$(589)$(612)
14
Three Months EndedNine Months EndedLocation on Consolidated
Statements of
Income
September 30,September 30,
2022202120222021
(In thousands)
Reclassification adjustment for loss on derivative instruments included in net income$(148)$(147)$(443)$(443)Interest expense
37 36 109 109 Income taxes
(111)(111)(334)(334)
Amortization of postretirement liability losses included in net periodic benefit credit(609)(617)(1,827)(1,851)Other income
148 151 460 462 Income taxes
(461)(466)(1,367)(1,389)
Reclassification adjustment on available-for-sale investments included in net income(54)(26)(126)(101)Other income
12 27 21 Income taxes
(42)(20)(99)(80)
Total reclassifications$(614)$(597)$(1,800)$(1,803)

Index
Note 9 - Revenue from contracts with customers
Revenue is recognized when a performance obligation is satisfied by transferring control over a product or service to a customer. Revenue is measured based on consideration specified in a contract with a customer and excludes any sales incentives and amounts collected on behalf of third parties. The Company is considered an agent for certain taxes collected from customers. As such, the Company presents revenues net of these taxes at the time of sale to be remitted to governmental authorities, including sales and use taxes.
Disaggregation
In the following tables, revenue is disaggregated by the type of customer or service provided. The Company believes this level of disaggregation best depicts how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors. The table also includes a reconciliation of the disaggregated revenue by reportable segments. For more information on the Company's business segments, see Note 17.
Three Months Ended March 31, 2022ElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
OtherTotal
Three Months Ended September 30, 2022Three Months Ended September 30, 2022ElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
OtherTotal
(In thousands)(In thousands)
Residential utility salesResidential utility sales$37,304 $258,816 $— $— $— $— $296,120 Residential utility sales$36,981 $64,074 $— $— $— $— $101,055 
Commercial utility salesCommercial utility sales35,600 163,609 — — — — 199,209 Commercial utility sales38,785 43,734 — — — — 82,519 
Industrial utility salesIndustrial utility sales10,306 13,024 — — — — 23,330 Industrial utility sales10,838 7,209 — — — — 18,047 
Other utility salesOther utility sales1,750 — — — — — 1,750 Other utility sales2,002 — — — — — 2,002 
Natural gas transportationNatural gas transportation— 12,381 31,574 — — — 43,955 Natural gas transportation— 11,910 32,144 — — — 44,054 
Natural gas storageNatural gas storage— — 3,719 — — — 3,719 Natural gas storage— — 3,595 — — — 3,595 
Contracting servicesContracting services— — — 114,267 — — 114,267 Contracting services— — — 492,207 — — 492,207 
Construction materialsConstruction materials— — — 241,732 — — 241,732 Construction materials— — — 742,982 — — 742,982 
Intrasegment eliminationsIntrasegment eliminations— — — (46,033)— — (46,033)Intrasegment eliminations— — — (259,761)— — (259,761)
Electrical & mechanical specialty contractingElectrical & mechanical specialty contracting— — — — 392,808 — 392,808 Electrical & mechanical specialty contracting— — — — 543,717 — 543,717 
Transmission & distribution specialty contractingTransmission & distribution specialty contracting— — — — 148,466 — 148,466 Transmission & distribution specialty contracting— — — — 181,550 — 181,550 
OtherOther12,753 2,609 1,709 — 48 4,341 21,460 Other10,758 3,494 3,815 — 200 4,438 22,705 
Intersegment eliminationsIntersegment eliminations(124)(136)(25,940)(130)(1,059)(4,341)(31,730)Intersegment eliminations(124)(139)(3,595)(343)(2,229)(4,438)(10,868)
Revenues from contracts with customersRevenues from contracts with customers97,589 450,303 11,062 309,836 540,263 — 1,409,053 Revenues from contracts with customers99,240 130,282 35,959 975,085 723,238 — 1,963,804 
Revenues out of scope(3,995)115 58 — 11,328 — 7,506 
Other revenuesOther revenues(47)1,792 86 — 11,571 — 13,402 
Total external operating revenuesTotal external operating revenues$93,594 $450,418 $11,120 $309,836 $551,591 $— $1,416,559 Total external operating revenues$99,193 $132,074 $36,045 $975,085 $734,809 $— $1,977,206 
Three Months Ended March 31, 2021ElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
OtherTotal
(In thousands)
Residential utility sales$33,436 $203,137 $— $— $— $— $236,573 
Commercial utility sales32,928 120,052 — — — — 152,980 
Industrial utility sales10,029 8,812 — — — — 18,841 
Other utility sales1,566 — — — — — 1,566 
Natural gas transportation— 12,452 29,417 — — — 41,869 
Natural gas storage— — 4,029 — — — 4,029 
Contracting services— — — 96,025 — — 96,025 
Construction materials— — — 216,412 — — 216,412 
Intrasegment eliminations— — — (46,716)— — (46,716)
Electrical & mechanical specialty contracting— — — — 355,190 — 355,190 
Transmission & distribution specialty contracting— — — — 151,363 — 151,363 
Other9,773 3,009 2,660 — 36 3,341 18,819 
Intersegment eliminations(136)(142)(26,229)(62)(1,042)(3,324)(30,935)
Revenues from contracts with customers87,596 347,320 9,877 265,659 505,547 17 1,216,016 
Revenues out of scope(2,923)2,886 36 — 11,923 — 11,922 
Total external operating revenues$84,673 $350,206 $9,913 $265,659 $517,470 $17 $1,227,938 
17

Index
Three Months Ended September 30, 2021ElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
OtherTotal
(In thousands)
Residential utility sales$36,412 $55,284 $— $— $— $— $91,696 
Commercial utility sales39,033 35,338 — — — — 74,371 
Industrial utility sales10,495 5,395 — — — — 15,890 
Other utility sales1,993 — — — — — 1,993 
Natural gas transportation— 11,812 28,058 — — — 39,870 
Natural gas storage— — 3,483 — — — 3,483 
Contracting services— — — 415,106 — — 415,106 
Construction materials— — — 617,823 — — 617,823 
Intrasegment eliminations— — — (201,630)— — (201,630)
Electrical & mechanical specialty contracting— — — — 317,238 — 317,238 
Transmission & distribution specialty contracting— — — — 185,842 — 185,842 
Other12,589 2,110 3,290 — 75 3,423 21,487 
Intersegment eliminations(136)(142)(3,908)(110)(289)(3,398)(7,983)
Revenues from contracts with customers100,386 109,797 30,923 831,189 502,866 25 1,575,186 
Other revenues(1,456)581 45 — 11,657 — 10,827 
Total external operating revenues$98,930 $110,378 $30,968 $831,189 $514,523 $25 $1,586,013 
Nine Months Ended September 30, 2022ElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
OtherTotal
(In thousands)
Residential utility sales$103,648 $439,639 $— $— $— $— $543,287 
Commercial utility sales108,400 279,697 — — — — 388,097 
Industrial utility sales32,067 29,242 — — — — 61,309 
Other utility sales5,632 — — — — — 5,632 
Natural gas transportation— 35,747 95,685 — — — 131,432 
Natural gas storage— — 10,210 — — — 10,210 
Contracting services— — — 937,156 — — 937,156 
Construction materials— — — 1,535,077 — — 1,535,077 
Intrasegment eliminations— — — (475,026)— — (475,026)
Electrical & mechanical specialty contracting— — — — 1,443,758 — 1,443,758 
Transmission & distribution specialty contracting— — — — 496,190 — 496,190 
Other33,727 9,854 8,200 — 357 13,168 65,306 
Intersegment eliminations(371)(416)(37,328)(674)(5,090)(13,168)(57,047)
Revenues from contracts with customers283,103 793,763 76,767 1,996,533 1,935,215 — 5,085,381 
Other revenues(4,854)(831)210 — 34,780 — 29,305 
Total external operating revenues$278,249 $792,932 $76,977 $1,996,533 $1,969,995 $— $5,114,686 
18

Index
Nine Months Ended September 30, 2021ElectricNatural gas
distribution
PipelineConstruction
materials and
contracting
Construction
services
OtherTotal
(In thousands)
Residential utility sales$99,106 $341,901 $— $— $— $— $441,007 
Commercial utility sales105,795 203,002 — — — — 308,797 
Industrial utility sales30,878 20,387 — — — — 51,265 
Other utility sales5,384 — — — — — 5,384 
Natural gas transportation— 35,715 85,160 — — — 120,875 
Natural gas storage— — 10,606 — — — 10,606 
Contracting services— — — 791,964 — — 791,964 
Construction materials— — — 1,332,997 — — 1,332,997 
Intrasegment eliminations— — — (394,126)— — (394,126)
Electrical & mechanical specialty contracting— — — — 1,020,130 — 1,020,130 
Transmission & distribution specialty contracting— — — — 502,328 — 502,328 
Other31,827 7,913 10,760 — 168 10,152 60,820 
Intersegment eliminations(407)(425)(38,000)(314)(2,128)(10,082)(51,356)
Revenues from contracts with customers272,583 608,493 68,526 1,730,521 1,520,498 70 4,200,691 
Other revenues(5,329)5,880 127 — 36,239 — 36,917 
Total external operating revenues$267,254 $614,373 $68,653 $1,730,521 $1,556,737 $70 $4,237,608 
Presented in the previous tables are intrasegment revenues within the construction materials and contracting segment to highlight the focus on vertical integration as this segment sells materials to both third parties and internal customers. Due to consolidation requirements, these revenues must be eliminated against construction materials to arrive at the external operating revenue total for the segment.
15

Index
Contract balances
The timing of revenue recognition may differ from the timing of invoicing to customers. The timing of invoicing to customers does not necessarily correlate with the timing of revenues being recognized under the cost-to-cost method of accounting. Contracts from contracting servicesfor construction work are billed as work progresses in accordance with agreed upon contractual terms. Generally, billing to the customer occurs contemporaneous to revenue recognition. A variance in timing of the billings may result in a contract asset or a contract liability. A contract asset occurs when revenues are recognized under the cost-to-cost measure of progress, which exceeds amounts billed on uncompleted contracts. Such amounts will be billed as standard contract terms allow, usually based on various measures of performance or achievement. A contract liability occurs when there are billings in excess of revenues recognized under the cost-to-cost measure of progress on uncompleted contracts. Contract liabilities decrease as revenue is recognized from the satisfaction of the related performance obligation.
The changes in contract assets and liabilities were as follows:
March 31, 2022December 31, 2021ChangeLocation on Consolidated Balance SheetsSeptember 30, 2022December 31, 2021ChangeLocation on Consolidated Balance Sheets
(In thousands)(In thousands)
Contract assetsContract assets$164,622 $125,742 $38,880 Receivables, netContract assets$265,585 $125,742 $139,843 Receivables, net
Contract liabilities - currentContract liabilities - current(154,136)(179,140)25,004 Accounts payableContract liabilities - current(216,439)(179,140)(37,299)Accounts payable
Contract liabilities - noncurrentContract liabilities - noncurrent(40)(118)78 Noncurrent liabilities - otherContract liabilities - noncurrent(12)(118)106 Noncurrent liabilities - other
Net contract assets (liabilities)Net contract assets (liabilities)$10,446 $(53,516)$63,962 Net contract assets (liabilities)$49,134 $(53,516)$102,650 
The Company recognized $121.8$11.2 million and $147.9 million in revenue for the three and nine months ended March 31,September 30, 2022, respectively, which was previously included in contract liabilities at December 31, 2021. The Company recognized $123.4$7.1 million and $152.4 million in revenue for the three and nine months ended March 31,September 30, 2021, respectively, which was previously included in contract liabilities at December 31, 2020.
The Company recognized a net increase in revenues of $23.5$14.5 million and $34.3$54.1 million for the three and nine months ended March 31,September 30, 2022, respectively, from performance obligations satisfied in prior periods. The company recognized a net increase in revenues of $19.2 million and $63.3 million for the three and nine months ended September 30, 2021, respectively, from performance obligations satisfied in prior periods.
19

Index
Remaining performance obligations
The remaining performance obligations, also referred to as backlog, at the construction materials and contracting and construction services segments include unrecognized revenues that the Company reasonably expects to be realized. These unrecognized revenues can include: projects that have a written award, a letter of intent, a notice to proceed, an agreed upon work order to perform work on mutually accepted terms and conditions and change orders or claims to the extent management believes additional contract revenues will be earned and are deemed probable of collection. Excluded from remaining performance obligations are potential orders under master service agreements. The majority of the Company's construction contracts have an original duration of less than two years.
The remaining performance obligations at the pipeline segment include firm transportation contracts with fixed pricing and fixed volumes. The Company has applied the practical expedient, which does not require additional disclosures for contracts with an original duration of less than 12 months, to certain firm transportation and non-regulated contracts. The Company's firm transportation contracts included in the remaining performance obligations have weighted average remaining durations of approximatelyless than five years.
At March 31,September 30, 2022, the Company's remaining performance obligations were $3.1$3.3 billion. The Company expects to recognize the following revenue amounts in future periods related to these remaining performance obligations: $2.4$2.6 billion within the next 12 months or less; $311.1$369.7 million within the next 13 to 24 months; and $407.2$418.1 million in 25 months or more.
Note 10 - Business combinations
The following acquisitions were accounted for as business combinations in accordance with ASC 805 - Business Combinations. The results of the acquired businesses have been included in the Consolidated Financial Statements beginning on the acquisition date. Pro forma financial amounts reflecting the effects of the business combinations are not presented, as none of these business combinations, individually or in the aggregate, were material to the Company's financial position or results of operations.
The acquisitions are also subject to customary adjustments based on, among other things, the amount of cash, debt and working capital in the business as of the closing date. The amounts included in the Consolidated Balance Sheets for these adjustments are considered provisional until final settlement has occurred.
The Company had no acquisitions duringin the first quarter ofnine months ended September 30, 2022.
16

Index
In 2021, the construction materials and contracting segment's acquisitions included:
Baker Rock Resources and Oregon Mainline Paving, two premier construction materials companies located around the Portland, Oregon metro area, acquired in November 2021. At March 31,As of September 30, 2022, the purchase price allocation was preliminary and will be finalized within 12 months ofsettled with no material adjustments to the acquisition date.provisional accounting.
Mt. Hood Rock, a construction aggregates business in Oregon, acquired in April 2021. As of March 31, 2022, the purchase price allocation was settled with no material adjustments to the provisional accounting.
In 2021, the total purchase price for acquisitions was $236.1 million, subject to certain adjustments, with cash acquired totaling $900,000. The purchase price includes consideration paid of $235.2 million. The amounts allocated to the aggregated assets acquired and liabilities assumed during 2021 were as follows: $17.0 million to current assets; $179.8 million to property, plant and equipment; $50.6 million to goodwill; $2.2 million to other intangible assets; $8.7 million to current liabilities; $2.5 million to noncurrent liabilities - other; and $3.2 million to deferred tax liabilities. During the first quarter of 2022, measurement period adjustments were made to previously reported provisional amounts, which decreased goodwill and increased property, plant and equipment by $2.1 million. The Company issued debt to finance thethese acquisitions.
Costs incurred for acquisitions are included in operation and maintenance expense on the Consolidated Statements of Income andIncome. For the nine months ended September 30, 2022, the Company had no acquisition costs. For the nine months ended September 30, 2021, acquisition costs were not material for the three months ended March 31, 2022 and 2021.material.
Note 11 - Leases
The Company's leases primarily include operating leases for equipment, buildings, easements and vehicles. The Company leases certain equipment to third parties through its utility and construction services segments, which are considered short-term operating leases with terms of less than 12 months.
The Company recognized revenue from operating leases of $11.4$11.7 million and $12.0$35.1 million for the three and nine months ended March 31,September 30, 2022, respectively. The Company recognized revenue from operating leases of $11.8 million and $36.6 million for the three and nine months ended September 30, 2021, respectively. At March 31,September 30, 2022, the Company had $8.4$9.1 million of lease receivables with a majority due within 12 months.
20

Index
Note 12 - Goodwill and other intangible assets
The changes in the carrying amount of goodwill were as follows:
Balance at January 1, 2022Goodwill
Acquired
During
 the Year
Measurement
Period
Adjustments
Balance at March 31, 2022Balance at January 1, 2022Goodwill
Acquired
During
 the Year
Measurement
Period
Adjustments
Balance at September 30, 2022
(In thousands) (In thousands)
Natural gas distributionNatural gas distribution$345,736 $— $— $345,736 Natural gas distribution$345,736 $— $— $345,736 
Construction materials and contractingConstruction materials and contracting276,426 — (2,124)274,302 Construction materials and contracting276,426 — (2,124)274,302 
Construction servicesConstruction services143,224 — — 143,224 Construction services143,224 — — 143,224 
TotalTotal$765,386 $— $(2,124)$763,262 Total$765,386 $— $(2,124)$763,262 
Balance at January 1, 2021Goodwill
Acquired
During
the Year
Measurement
Period
Adjustments
Balance at March 31, 2021Balance at January 1, 2021Goodwill
Acquired
During
the Year
Measurement
Period
Adjustments
Balance at September 30, 2021
(In thousands) (In thousands)
Natural gas distributionNatural gas distribution$345,736 $— $— $345,736 Natural gas distribution$345,736 $— $— $345,736 
Construction materials and contractingConstruction materials and contracting226,003 — — 226,003 Construction materials and contracting226,003 2,900 (217)228,686 
Construction servicesConstruction services143,224 — — 143,224 Construction services143,224 — — 143,224 
TotalTotal$714,963 $— $— $714,963 Total$714,963 $2,900 $(217)$717,646 
Balance at January 1, 2021Goodwill
Acquired
During
the Year
Measurement
Period
Adjustments
Balance at December 31, 2021
 (In thousands)
Natural gas distribution$345,736 $— $— $345,736 
Construction materials and contracting226,003 50,640 (217)276,426 
Construction services143,224 — — 143,224 
Total$714,963 $50,640 $(217)$765,386 
17

Index
Other amortizable intangible assets were as follows:
March 31, 2022March 31, 2021December 31, 2021 September 30, 2022September 30, 2021December 31, 2021
(In thousands) (In thousands)
Customer relationshipsCustomer relationships$28,990 $28,836 $29,740 Customer relationships$28,990 $29,423 $29,740 
Less accumulated amortizationLess accumulated amortization10,846 7,792 10,650 Less accumulated amortization12,768 9,705 10,650 
18,144 21,044 19,090  16,222 19,718 19,090 
Noncompete agreementsNoncompete agreements4,591 3,941 4,591 Noncompete agreements4,591 3,991 4,591 
Less accumulated amortizationLess accumulated amortization3,016 2,441 2,856 Less accumulated amortization3,377 2,710 2,856 
1,575 1,500 1,735 1,214 1,281 1,735 
OtherOther6,969 11,957 12,601 Other5,279 11,957 12,601 
Less accumulated amortizationLess accumulated amortization5,299 10,540 10,848 Less accumulated amortization3,970 10,715 10,848 
1,670 1,417 1,753  1,309 1,242 1,753 
TotalTotal$21,389 $23,961 $22,578 Total$18,745 $22,241 $22,578 
The previous tables include goodwill and intangible assets associated with the business combinations completed during 2021. For more information related to these business combinations, see Note 10.
Amortization expense for amortizable intangible assets for the three and nine months ended March 31,September 30, 2022, was $1.3 million and $3.8 million, respectively. Amortization expense for amortizable intangible assets for the three and nine months ended September 30, 2021, was $1.2 million and $1.5$3.9 million, respectively. Estimated amortization expense for identifiable intangible assets as of March 31,September 30, 2022, was:
Remainder of 20222023202420252026Thereafter
(In thousands)
Amortization expense$3,630 $4,470 $4,200 $2,206 $1,716 $5,167 
Remainder of 20222023202420252026Thereafter
(In thousands)
Amortization expense$1,159 $4,591 $4,249 $2,200 $1,781 $4,765 
1821

Index
Note 13 - Regulatory assets and liabilities
The following table summarizes the individual components of unamortized regulatory assets and liabilities:
Estimated
Recovery or Refund
Period as of
March 31, 2022
*March 31, 2022March 31, 2021December 31, 2021
Estimated
Recovery or Refund
Period as of
September 30, 2022
*September 30, 2022September 30, 2021December 31, 2021
(In thousands)(In thousands)
Regulatory assets:Regulatory assets:Regulatory assets:
Current:Current:Current:
Natural gas costs recoverable through rate adjustmentsNatural gas costs recoverable through rate adjustmentsUp to 1 year$66,132 $76,782 $86,371 Natural gas costs recoverable through rate adjustmentsUp to 1 year$112,079 $98,211 $86,371 
Conservation programsConservation programsUp to 1 year9,363 8,495 8,225 
DecouplingDecouplingUp to 1 year7,609 4,180 9,131 DecouplingUp to 1 year6,549 7,195 9,131 
Conservation programsUp to 1 year7,567 6,679 8,225 
Cost recovery mechanismsCost recovery mechanismsUp to 1 year3,432 7,130 4,536 Cost recovery mechanismsUp to 1 year3,354 4,693 4,536 
OtherOtherUp to 1 year4,338 3,681 10,428 OtherUp to 1 year16,815 14,541 10,428 
89,078 98,452 118,691 148,160 133,135 118,691 
Noncurrent:Noncurrent:Noncurrent:
Pension and postretirement benefitsPension and postretirement benefits**142,681 155,924 142,681 Pension and postretirement benefits**137,582 155,888 142,681 
Cost recovery mechanismsCost recovery mechanismsUp to 10 years67,989 15,508 44,870 Cost recovery mechanismsUp to 10 years67,094 43,955 44,870 
Plant costs/asset retirement obligationsPlant costs/asset retirement obligationsOver plant lives63,325 72,250 63,116 Plant costs/asset retirement obligationsOver plant lives61,941 73,528 63,116 
Plant to be retiredPlant to be retired-29,452 73,498 50,070 Plant to be retired-24,740 48,544 50,070 
Manufactured gas plant site remediationManufactured gas plant site remediation-26,089 26,002 26,053 Manufactured gas plant site remediation-25,963 26,000 26,053 
Taxes recoverable from customersTaxes recoverable from customersOver plant lives12,492 10,800 12,339 Taxes recoverable from customersOver plant lives12,394 11,438 12,339 
Long-term debt refinancing costsLong-term debt refinancing costsUp to 38 years3,636 4,268 3,794 Long-term debt refinancing costsUp to 38 years3,335 3,952 3,794 
Natural gas costs recoverable through rate adjustmentsNatural gas costs recoverable through rate adjustmentsUp to 2 years3,246 15,158 5,186 Natural gas costs recoverable through rate adjustmentsUp to 2 years462 6,084 5,186 
OtherOtherUp to 17 years10,318 6,509 9,742 OtherUp to 17 years10,931 9,856 9,742 
359,228 379,917 357,851 344,442 379,245 357,851 
Total regulatory assetsTotal regulatory assets$448,306 $478,369 $476,542 Total regulatory assets$492,602 $512,380 $476,542 
Regulatory liabilities:Regulatory liabilities:Regulatory liabilities:
Current:Current:Current:
Natural gas costs refundable through rate adjustmentsUp to 1 year$13,107 $16,344 $6,700 
Taxes refundable to customersTaxes refundable to customersUp to 1 year3,470 3,092 3,841 Taxes refundable to customersUp to 1 year$4,264 $3,867 $3,841 
Electric fuel and purchased power deferralElectric fuel and purchased power deferralUp to 1 year— 2,001 — Electric fuel and purchased power deferralUp to 1 year3,763 3,205 — 
Cost recovery mechanismsCost recovery mechanismsUp to 1 year2,674 2,797 214 
Natural gas costs refundable through rate adjustmentsNatural gas costs refundable through rate adjustmentsUp to 1 year873 — 6,700 
OtherOtherUp to 1 year14,609 12,829 5,762 OtherUp to 1 year7,025 6,622 5,548 
31,186 34,266 16,303 18,599 16,491 16,303 
Noncurrent:Noncurrent:Noncurrent:
Taxes refundable to customersTaxes refundable to customersOver plant lives212,472 224,795 215,421 Taxes refundable to customersOver plant lives205,517 218,566 215,421 
Plant removal and decommissioning costsPlant removal and decommissioning costsOver plant lives171,485 169,430 168,152 Plant removal and decommissioning costsOver plant lives174,481 172,683 168,152 
Pension and postretirement benefitsPension and postretirement benefits**20,434 16,965 20,434 Pension and postretirement benefits**19,687 16,915 20,434 
Accumulated deferred investment tax creditAccumulated deferred investment tax creditUp to 20 years13,352 11,428 12,696 Accumulated deferred investment tax creditUp to 20 years14,665 12,403 12,696 
Cost recovery mechanismsCost recovery mechanismsUp to 20 years12,535 — 7,727 
OtherOtherUp to 20 years15,885 6,442 12,087 OtherUp to 16 years6,327 5,574 4,360 
433,628 429,060 428,790 433,212 426,141 428,790 
Total regulatory liabilitiesTotal regulatory liabilities$464,814 $463,326 $445,093 Total regulatory liabilities$451,811 $442,632 $445,093 
Net regulatory positionNet regulatory position$(16,508)$15,043 $31,449 Net regulatory position$40,791 $69,748 $31,449 
*Estimated recovery or refund period for amounts currently being recovered or refunded in rates to customers.
**    Recovered as expense is incurred or cash contributions are made.
RegulatoryAt September 30, 2022 and 2021, and December 31, 2021, approximately $264.4 million, $318.2 million and $296.6 million, respectively, of regulatory assets were not earning a rate of return were approximately $268.1 million and $361.4 million at March 31, 2022 and 2021, respectively, and $296.6 million at December 31, 2021;return; however, these regulatory assets are expected to be recovered from customers in future rates. These assets are largely comprised of the unfunded portion of pension and postretirement benefits, asset retirement obligations, accelerated depreciation on plant retirement and the estimated future cost of manufactured gas plant site remediation.
In the last half of 2021 and in 2022, the Company has experienced higher natural gas costs due to the increase in demand outpacing the supply along with the impact of global events. This increase in natural gas costs experienced in certain jurisdictions has been partially offset by the recovery of prior period natural gas costs being recovered over a period longer than the normal one-year period, as further discussed below.
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Index
In February 2021, a prolonged period of unseasonably cold temperatures in the central United States significantly increased the demand for electric and natural gas services and contributed to increased market prices. Overall, Montana-Dakota and Great Plains incurred approximately $44.0 million in increased natural gas costs in order to maintain services for its customers. These extraordinary gas costs were recorded as regulatory assets as they are expected to be recovered from customers. With the exception of $845,000 in Minnesota, Montana-Dakota and Great Plains have received approval for the recovery of purchased gas adjustments related to the cold-weather event in all
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Index
jurisdictions impacted, including out-of-cycle purchased gas adjustment requests in most jurisdictions. For a discussion of the Company's most recent cases by jurisdiction, see Note 19.
In 2019, the Company experienced increased natural gas costs in Washington from the rupture of the Enbridge pipeline in Canada in late 2018. As a result, the Company requested, and the WUTC approved, recovery through 2022 of the balance of natural gas costs recoverable related to this period of time, which was over three years rather than its normal one-year recovery period.
In February 2019, the Company announced the retirement of three aging coal-fired electric generating units. The Company accelerated the depreciation related to these facilities in property, plant and equipment and recorded the difference between the accelerated depreciation, in accordance with GAAP, and the depreciation approved for rate-making purposes as regulatory assets. Requests were filed with the NDPSC and SDPUC, and subsequently approved, to offset the savings associated with the cessation of operations of these units with the amortization of the deferred regulatory assets. The Company ceased operations of Lewis & Clark Station in March 2021 and Units 1 and 2 at Heskett Station in February 2022. The Company subsequently movedreclassified the costs being recovered for these facilities from plant retirement to cost recovery mechanisms in the previous table and began amortizing the associated plant retirement and closure costs in the jurisdictions where requests were filed, as previously discussed. The Company expects to recover the regulatory assets related to the plant retirements in future rates.
If, for any reason, the Company's regulated businesses cease to meet the criteria for application of regulatory accounting for all or part of their operations, the regulatory assets and liabilities relating to those portions ceasing to meet such criteria would be removed from the balance sheetwritten off and included in the statement of income or accumulated other comprehensive loss in the period in which the discontinuance of regulatory accounting occurs.
Note 14 - Fair value measurements
Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants at the measurement date. The fair value ASC establishes a hierarchy for grouping assets and liabilities, based on the significance of inputs. The estimated fair values of the Company's assets and liabilities measured on a recurring basis are determined using the market approach.
The Company measures its investments in certain fixed-income and equity securities at fair value with changes in fair value recognized in income. The Company anticipates using these investments, which consist of insurance contracts, to satisfy its obligations under its unfunded, nonqualified defined benefit and defined contribution plans for executive officers and certain key management employees, and invests in these fixed-income and equity securities for the purpose of earning investment returns and capital appreciation. These investments, which totaled $105.4$95.2 million, $101.6$106.4 million and $109.6 million, at March 31,September 30, 2022 and 2021, and December 31, 2021, respectively, are classified as investments on the Consolidated Balance Sheets. The net unrealized loss on these investments was $5.8$2.6 million and $16.8 million for the three and nine months ended March 31, 2022.September 30, 2022, respectively. The net unrealized gain on these investments was $127,000$373,000 and $4.2 million for the three and nine months ended March 31,September 30, 2021. The change in fair value, which is considered part of the cost of the plan, is classified in other income on the Consolidated Statements of Income.
The Company did not elect the fair value option, which records gains and losses in income, for its available-for-sale securities, which include mortgage-backed securities and U.S. Treasury securities. These available-for-sale securities are recorded at fair value and are classified as investments on the Consolidated Balance Sheets. Unrealized gains or losses are recorded in accumulated other comprehensive loss. Details of available-for-sale securities were as follows:
March 31, 2022CostGross
Unrealized
Gains
Gross
Unrealized
Losses
Fair Value
(In thousands)
Mortgage-backed securities$8,778 $$310 $8,471 
U.S. Treasury securities2,688 — 63 2,625 
Total$11,466 $$373 $11,096 
March 31, 2021CostGross
Unrealized
Gains
Gross
Unrealized
Losses
Fair Value
September 30, 2022September 30, 2022CostGross
Unrealized
Gains
Gross
Unrealized
Losses
Fair Value
(In thousands)(In thousands)
Mortgage-backed securitiesMortgage-backed securities$8,709 $155 $10 $8,854 Mortgage-backed securities$8,486 $— $783 $7,703 
U.S. Treasury securitiesU.S. Treasury securities2,636 — 14 2,622 U.S. Treasury securities2,468 — 82 2,386 
TotalTotal$11,345 $155 $24 $11,476 Total$10,954 $— $865 $10,089 
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Index
September 30, 2021CostGross
Unrealized
Gains
Gross
Unrealized
Losses
Fair Value
(In thousands)
Mortgage-backed securities$8,597 $93 $11 $8,679 
U.S. Treasury securities2,681 — 28 2,653 
Total$11,278 $93 $39 $11,332 
December 31, 2021CostGross
Unrealized
Gains
Gross
Unrealized
Losses
Fair Value
(In thousands)
Mortgage-backed securities$8,702 $51 $47 $8,706 
U.S. Treasury securities2,407 — 11 2,396 
Total$11,109 $51 $58 $11,102 
The Company's assets measured at fair value on a recurring basis were as follows:
Fair Value Measurements at March 31, 2022, Using  Fair Value Measurements at September 30, 2022, Using 
Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Balance at March 31, 2022 Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Balance at September 30, 2022
(In thousands)(In thousands)
Assets:Assets: Assets: 
Money market fundsMoney market funds$— $13,131 $— $13,131 Money market funds$— $7,309 $— $7,309 
Insurance contracts*Insurance contracts*— 105,371 — 105,371 Insurance contracts*— 95,170 — 95,170 
Available-for-sale securities:Available-for-sale securities:Available-for-sale securities:
Mortgage-backed securitiesMortgage-backed securities— 8,471 — 8,471 Mortgage-backed securities— 7,703 — 7,703 
U.S. Treasury securitiesU.S. Treasury securities— 2,625 — 2,625 U.S. Treasury securities— 2,386 — 2,386 
Total assets measured at fair valueTotal assets measured at fair value$— $129,598 $— $129,598 Total assets measured at fair value$— $112,568 $— $112,568 
*    The insurance contracts invest approximately 6165 percent in fixed-income investments, 1714 percent in common stock of large-cap companies, 87 percent in common stock of mid-cap companies, 6 percent in common stock of small-cap companies, 6 percent in target date investments and 2 percent in cash equivalents.
Fair Value Measurements at March 31, 2021, Using  Fair Value Measurements at September 30, 2021, Using 
Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Balance at March 31, 2021 Quoted Prices in
Active Markets
for Identical
Assets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Balance at September 30, 2021
(In thousands)(In thousands)
Assets:Assets: Assets: 
Money market fundsMoney market funds$— $9,388 $— $9,388 Money market funds$— $9,907 $— $9,907 
Insurance contracts*Insurance contracts*— 101,632 — 101,632 Insurance contracts*— 106,371 — 106,371 
Available-for-sale securities:Available-for-sale securities:Available-for-sale securities:
Mortgage-backed securitiesMortgage-backed securities— 8,854 — 8,854 Mortgage-backed securities— 8,679 — 8,679 
U.S. Treasury securitiesU.S. Treasury securities— 2,622 — 2,622 U.S. Treasury securities— 2,653 — 2,653 
Total assets measured at fair valueTotal assets measured at fair value$— $122,496 $— $122,496 Total assets measured at fair value$— $127,610 $— $127,610 
*    The insurance contracts invest approximately 5463 percent in fixed-income investments, 1916 percent in common stock of large-cap companies, 108 percent in common stock of mid-cap companies, 97 percent in common stock of small-cap companies, 65 percent in target date investments and 21 percent in cash equivalents.
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Index
 Fair Value Measurements at December 31, 2021, Using 
Quoted Prices in
Active Markets
for Identical
Assets
 (Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
 (Level 3)
Balance at December 31, 2021
(In thousands)
Assets:    
Money market funds$— $10,190 $— $10,190 
Insurance contracts*— 109,603 — 109,603 
Available-for-sale securities:
Mortgage-backed securities— 8,706 — 8,706 
U.S. Treasury securities— 2,396 — 2,396 
Total assets measured at fair value$— $130,895 $— $130,895 
*    The insurance contracts invest approximately 61 percent in fixed-income investments, 17 percent in common stock of large-cap companies, 8 percent in common stock of mid-cap companies, 7 percent in common stock of small-cap companies, 5 percent in target date investments and 2 percent in cash equivalents.
The Company's money market funds are valued at the net asset value of shares held at the end of the quarter,period, based on published market quotations on active markets, or using other known sources including pricing from outside sources. The estimated fair value of the Company's mortgage-backed securities and U.S. Treasury securities are based on comparable market transactions, other observable inputs or other sources, including pricing from outside sources. The estimated fair value of the Company's insurance contracts are based on contractual cash surrender values that are determined primarily by investments in managed separate accounts of the insurer. These amounts approximate fair value. The managed separate accounts are valued based on other observable inputs or corroborated market data.
Though the Company believes the methods used to estimate fair value are consistent with those used by other market participants, the use of other methods or assumptions could result in a different estimate of fair value.
The Company applies the provisions of the fair value measurement standard to its nonrecurring, non-financial measurements, including long-lived asset impairments. These assets are not measured at fair value on an ongoing basis but are subject to fair value adjustments only in certain circumstances. The Company reviews the carrying value of its long-lived assets, excluding goodwill, whenever events or changes in circumstances indicate that such carrying amounts may not be recoverable.
The Company performed fair value assessments of the assets acquired and liabilities assumed in the business combinations that occurred during 2021. The fair value of these assets and liabilities were determined based on Level 2 and Level 3 inputs.
The Company's long-term debt is not measured at fair value on the Consolidated Balance Sheets and the fair value is being provided for disclosure purposes only. The fair value was categorized as Level 2 in the fair value hierarchy and was based on discounted future cash flows using current market interest rates. The estimated fair value of the Company's Level 2 long-term debt was as follows:
March 31, 2022March 31, 2021December 31, 2021 September 30, 2022September 30, 2021December 31, 2021
(In thousands)(In thousands)
Carrying amountCarrying amount$2,747,763 $2,253,274 $2,741,900 Carrying amount$2,988,452 $2,328,266 $2,741,900 
Fair valueFair value$2,755,041 $2,473,806 $2,984,866 Fair value$2,647,387 $2,599,907 $2,984,866 
The carrying amounts of the Company's remaining financial instruments included in current assets and current liabilities approximate their fair values.
Note 15 - Debt
Certain debt instruments of the Company's subsidiaries contain restrictive and financial covenants and cross-default provisions. In order to borrow under the debt agreements, the subsidiary companies must be in compliance with the applicable covenants and certain other conditions, all of which the subsidiaries, as applicable, were in compliance with at March 31,September 30, 2022. In the event the subsidiaries do not comply with the applicable covenants and other conditions, alternative sources of funding may need to be pursued.
Montana-Dakota's and Centennial's respective commercial paper programs are supported by revolving credit agreements. While the amount of commercial paper outstanding does not reduce available capacity under the respective revolving credit agreements, Montana-Dakota and Centennial do not issue commercial paper in an aggregate amount exceeding the available capacity under the credit agreements. The commercial paper borrowings may vary during the period, largely the result of fluctuations in working capital requirements due to the seasonality of certain operations of the Company's subsidiaries.
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Index
Short-term debt
Centennial On March 18, 2022, Centennial entered into a $100.0 million term loan agreement with a SOFR-based variable interest rate and a maturity date of March 17, 2023. The agreement contains customary covenants and provisions, including a covenant of Centennial not to permit, at any time, the ratio of total debt to total capitalization to be greater than 65 percent. The covenants also include certain restrictions on the sale of certain assets, loans and investments.
Long-term debt
Long-term Debt Outstanding Long-term debt outstanding was as follows:
Weighted
Average
Interest
Rate at
March 31, 2022
March 31, 2022March 31, 2021December 31, 2021
Weighted
Average
Interest
Rate at
September 30, 2022
September 30, 2022September 30, 2021December 31, 2021
(In thousands) (In thousands)
Senior Notes due on dates ranging from October 22, 2022 to September 15, 20614.28 %$2,275,000 $1,950,000 $2,125,000 
Senior Notes due on dates ranging from October 22, 2022 to June 15, 2062Senior Notes due on dates ranging from October 22, 2022 to June 15, 20624.29 %$2,365,000 $2,025,000 $2,125,000 
Commercial paper supported by revolving credit agreementsCommercial paper supported by revolving credit agreements.90 %348,500 218,900 450,300 Commercial paper supported by revolving credit agreements3.66 %460,600 168,800 450,300 
Credit agreements due on June 7, 2024Credit agreements due on June 7, 20243.25 %85,800 43,350 127,500 Credit agreements due on June 7, 20244.55 %125,580 94,300 127,500 
Medium-Term Notes due on dates ranging from September 15, 2027 to March 16, 2029Medium-Term Notes due on dates ranging from September 15, 2027 to March 16, 20297.32 %35,000 35,000 35,000 Medium-Term Notes due on dates ranging from September 15, 2027 to March 16, 20297.32 %35,000 35,000 35,000 
Term Loan Agreement due on September 3, 2032Term Loan Agreement due on September 3, 20322.00 %7,700 8,400 7,700 Term Loan Agreement due on September 3, 20323.64 %7,000 7,700 7,700 
Other notes due on dates ranging from January 1, 2024 to January 1, 2061Other notes due on dates ranging from January 1, 2024 to January 1, 2061.95 %2,445 3,282 2,564 Other notes due on dates ranging from January 1, 2024 to January 1, 2061.97 %2,349 3,198 2,564 
Less unamortized debt issuance costsLess unamortized debt issuance costs6,605 5,655 6,090 Less unamortized debt issuance costs6,633 5,709 6,090 
Less discountLess discount77 74 Less discount444 23 74 
Total long-term debtTotal long-term debt2,747,763 2,253,274 2,741,900 Total long-term debt2,988,452 2,328,266 2,741,900 
Less current maturitiesLess current maturities147,953 1,552 148,053 Less current maturities214,453 1,548 148,053 
Net long-term debtNet long-term debt$2,599,810 $2,251,722 $2,593,847 Net long-term debt$2,773,999 $2,326,718 $2,593,847 
Schedule of Debt Maturities Long-term debt maturities, which excludes unamortized debt issuance costs and discount, at March 31,September 30, 2022, were as follows:
Remainder of
2022
2023202420252026Thereafter
(In thousands)
Long-term debt maturities$147,953 $77,925 $495,104 $177,802 $140,802 $1,714,859 
Remainder of
2022
2023202420252026Thereafter
(In thousands)
Long-term debt maturities$147,253 $77,923 $646,983 $177,802 $140,802 $1,804,766 
Note 16 - Cash flow information
Cash expenditures for interest and income taxes were as follows:
Three Months EndedNine Months Ended
March 31, September 30,
20222021  20222021 
(In thousands) (In thousands)
Interest, net*Interest, net*$15,657 $14,303 Interest, net*$75,425 $59,876 
Income taxes paid (refunded), net$(363)$13,880 
Income taxes paid, netIncome taxes paid, net$17,664 $61,250 
*    AFUDC - borrowed was $586,000$2.4 million and $348,000$1.6 million for the threenine months ended March 31,September 30, 2022 and 2021, respectively.
Noncash investing and financing transactions were as follows:
March 31, 2022March 31, 2021December 31, 2021September 30, 2022September 30, 2021December 31, 2021
(In thousands)(In thousands)
Right-of-use assets obtained in exchange for new operating lease liabilitiesRight-of-use assets obtained in exchange for new operating lease liabilities$10,175 $9,236 $55,987 Right-of-use assets obtained in exchange for new operating lease liabilities$36,492 $26,120 $55,987 
Property, plant and equipment additions in accounts payableProperty, plant and equipment additions in accounts payable$25,730 $20,594 $57,605 Property, plant and equipment additions in accounts payable$44,277 $88,355 $57,605 
Debt assumed in connection with a business combinationDebt assumed in connection with a business combination$— $— $10 Debt assumed in connection with a business combination$— $— $10 
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Index
Note 17 - Business segment data
The Company's reportable segments are those that are based on the Company's method of internal reporting, which generally segregates the strategic business units due to differences in products, services and regulation. The internal reporting of these operating segments is defined based on the reporting and review process used by the Company's chief executive officer. The Company's operations are located within the United States.
The electric segment generates, transmits and distributes electricity in Montana, North Dakota, South Dakota and Wyoming. The natural gas distribution segment distributes natural gas in those states, as well as in Idaho, Minnesota, Oregon and Washington. These operations also supply related value-added services.
The pipeline segment provides natural gas transportation and underground storage services through a regulated pipeline system primarily in the Rocky Mountain and northern Great Plains regions of the United States. This segment also provides non-regulated cathodic protection and other energy-related services.
The construction materials and contracting segment mines, processes and sells construction aggregates (crushed stone, sand and gravel); produces and sells asphalt mix; and supplies ready-mix concrete. This segment focuses on vertical integration of its contracting services with its construction materials to support the aggregate-based product lines including aggregate placement, asphalt and concrete paving, and site development and grading. Although not common to all locations, other products include the sale of cement, asphalt oil for various commercial and roadway applications, various finished concrete products and other building materials and related contracting services. This segment operates in the central, southern and western United States, including Alaska and Hawaii.
The construction services segment provides a full spectrum of construction services through its electrical and mechanical and transmission and distribution specialty contracting services across the country.United States. These specialty contracting services are provided to utilities and manufacturing, transportation, commercial, industrial, institutional, renewable and governmental customers. Its electrical and mechanical contracting services include construction and maintenance of electrical and communication wiring and infrastructure, fire suppression systems, and mechanical piping and services. Its transmission and distribution contracting services include construction and maintenance of overhead and underground electrical, gas and communication infrastructure, as well as manufacturing and distribution of transmission line construction equipment and tools.
The Other category includes the activities of Centennial Capital, which, through its subsidiary InterSource Insurance Company, insures various types of risks as a captive insurer for certain of the Company's subsidiaries. The function of the captive insurer is to fund the self-insured layers of the insured Company's general liability, automobile liability, pollution liability and other coverages. Centennial Capital also owns certain real and personal property. In addition, the Other category includes certain assets, liabilities and tax adjustments of the holding company primarily associated with corporate functions and certain general and administrative costs (reflected in operation and maintenance expense) and interest expense, which were previously allocated to the refining business and Fidelity and do not meet the criteria for income (loss) from discontinued operations.operations, as well as transaction costs associated with the anticipated separation of Knife River.
Discontinued operations include the supporting activities of Fidelity other than certain general and administrative costs and interest expense as described above.
The information below follows the same accounting policies as described in Note 2 of the Notes to Consolidated Financial Statements in the 2021 Annual Report. Information on the Company's segments was as follows:
Three Months EndedThree Months EndedNine Months Ended
March 31,September 30,
2022 2021  2022 2021 2022 2021 
(In thousands) (In thousands)
External operating revenues:External operating revenues: External operating revenues: 
Regulated operations:Regulated operations:Regulated operations:
ElectricElectric$93,594 $84,673 Electric$99,193 $98,930 $278,249 $267,254 
Natural gas distributionNatural gas distribution450,418 350,206 Natural gas distribution132,074 110,378 792,932 614,373 
PipelinePipeline9,444 7,502 Pipeline32,347 27,757 69,347 58,390 
553,456 442,381  263,614 237,065 1,140,528 940,017 
Non-regulated operations:
Pipeline1,676 2,411 
Construction materials and contracting309,836 265,659 
Construction services551,591 517,470 
Other— 17 
863,103 785,557 
Total external operating revenues$1,416,559 $1,227,938 
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Index
Three Months EndedThree Months EndedNine Months Ended
March 31,September 30,
2022 2021  2022 2021 2022 2021 
(In thousands) (In thousands)
Non-regulated operations:Non-regulated operations:
PipelinePipeline3,698 3,211 7,630 10,263 
Construction materials and contractingConstruction materials and contracting975,085 831,189 1,996,533 1,730,521 
Construction servicesConstruction services734,809 514,523 1,969,995 1,556,737 
OtherOther— 25 — 70 
1,713,592 1,348,948 3,974,158 3,297,591 
Total external operating revenuesTotal external operating revenues$1,977,206 $1,586,013 $5,114,686 $4,237,608 
Intersegment operating revenues:Intersegment operating revenues: Intersegment operating revenues: 
Regulated operations:Regulated operations:Regulated operations:
ElectricElectric$124 $136 Electric$124 $136 $371 $407 
Natural gas distributionNatural gas distribution136 142 Natural gas distribution139 142 416 425 
PipelinePipeline25,933 25,990 Pipeline3,508 3,845 36,845 37,530 
26,193 26,268 3,771 4,123 37,632 38,362 
Non-regulated operations:Non-regulated operations:Non-regulated operations:
PipelinePipeline239 Pipeline87 63 483 470 
Construction materials and contractingConstruction materials and contracting130 62 Construction materials and contracting343 110 674 314 
Construction servicesConstruction services1,059 1,042 Construction services2,229 289 5,090 2,128 
OtherOther4,341 3,324 Other4,438 3,398 13,168 10,082 
5,537 4,667 7,097 3,860 19,415 12,994 
Intersegment eliminationsIntersegment eliminations(31,730)(30,935)Intersegment eliminations(10,868)(7,983)(57,047)(51,356)
Total intersegment operating revenuesTotal intersegment operating revenues$— $— Total intersegment operating revenues$— $— $— $— 
Operating income (loss):Operating income (loss):Operating income (loss):
ElectricElectric$15,044 $13,865 Electric$30,395 $27,310 $53,764 $53,982 
Natural gas distributionNatural gas distribution56,256 53,573 Natural gas distribution(16,688)(14,249)38,929 42,925 
PipelinePipeline11,882 12,536 Pipeline14,963 12,284 39,447 35,896 
Construction materials and contractingConstruction materials and contracting(44,605)(34,889)Construction materials and contracting147,367 133,712 157,116 171,274 
Construction servicesConstruction services29,498 40,277 Construction services34,949 30,120 110,588 108,172 
OtherOther(732)(198)Other(1,135)(8)(2,081)(226)
Total operating incomeTotal operating income$67,343 $85,164 Total operating income$209,851 $189,169 $397,763 $412,023 
Net income (loss):Net income (loss):Net income (loss):
Regulated operations:Regulated operations:Regulated operations:
ElectricElectric$11,278 $10,749 Electric$21,596 $20,564 $37,476 $41,618 
Natural gas distributionNatural gas distribution36,315 36,178 Natural gas distribution(18,058)(15,390)10,758 20,081 
PipelinePipeline7,956 9,194 Pipeline9,379 10,225 24,527 27,508 
55,549 56,121 12,917 15,399 72,761 89,207 
Non-regulated operations:Non-regulated operations:Non-regulated operations:
PipelinePipeline(619)(296)Pipeline492 356 (187)1,166 
Construction materials and contractingConstruction materials and contracting(40,010)(30,813)Construction materials and contracting102,764 96,282 95,337 116,865 
Construction servicesConstruction services21,324 29,825 Construction services27,977 23,130 83,755 81,839 
OtherOther(4,511)(2,721)Other3,783 3,795 (1,368)2,172 
(23,816)(4,005)135,016 123,563 177,537 202,042 
Income from continuing operationsIncome from continuing operations31,733 52,116 Income from continuing operations147,933 138,962 250,298 291,249 
Income from discontinued operations, net of tax30 15 
Discontinued operations, net of taxDiscontinued operations, net of tax38 314 103 348 
Net incomeNet income$31,763 $52,131 Net income$147,971 $139,276 $250,401 $291,597 
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Note 18 - Employee benefit plans
Pension and other postretirement plans
The Company has noncontributory qualified defined benefit pension plans and other postretirement benefit plans for certain eligible employees.
Components of net periodic benefit credit for the Company's pension benefit plans were as follows:
Three Months EndedThree Months EndedNine Months Ended
March 31,September 30,
202220212022202120222021
(In thousands)(In thousands)
Components of net periodic benefit credit:Components of net periodic benefit credit:Components of net periodic benefit credit:
Interest costInterest cost$2,631 $2,455 Interest cost$2,630 $2,455 $7,892 $7,365 
Expected return on assetsExpected return on assets(4,864)(4,894)Expected return on assets(4,864)(4,894)(14,592)(14,682)
Amortization of net actuarial lossAmortization of net actuarial loss1,671 2,004 Amortization of net actuarial loss1,670 2,004 5,012 6,012 
Net periodic benefit creditNet periodic benefit credit$(562)$(435)Net periodic benefit credit$(564)$(435)$(1,688)$(1,305)
Components of net periodic benefit credit for the Company's other postretirement benefit plans were as follows:
Three Months EndedThree Months EndedNine Months Ended
March 31,September 30,
202220212022202120222021
(In thousands)(In thousands)
Components of net periodic benefit credit:Components of net periodic benefit credit:Components of net periodic benefit credit:
Service costService cost$354 $400 Service cost$354 $400 $1,062 $1,200 
Interest costInterest cost474 466 Interest cost474 466 1,422 1,398 
Expected return on assetsExpected return on assets(1,322)(1,275)Expected return on assets(1,322)(1,275)(3,966)(3,825)
Amortization of prior service creditAmortization of prior service credit(350)(349)Amortization of prior service credit(350)(349)(1,050)(1,047)
Amortization of net actuarial (gain) lossAmortization of net actuarial (gain) loss(54)Amortization of net actuarial (gain) loss(55)(163)18 
Net periodic benefit credit, including amount capitalizedNet periodic benefit credit, including amount capitalized(898)(752)Net periodic benefit credit, including amount capitalized(899)(752)(2,695)(2,256)
Less amount capitalizedLess amount capitalized31 39 Less amount capitalized48 46 132 129 
Net periodic benefit creditNet periodic benefit credit$(929)$(791)Net periodic benefit credit$(947)$(798)$(2,827)$(2,385)

The components of net periodic benefit credit, other than the service cost component, are included in other income on the Consolidated Statements of Income. The service cost component is included in operation and maintenance expense on the Consolidated Statements of Income.
Nonqualified defined benefit plans
In addition to the qualified defined benefit pension plans reflected in the table at the beginning of this note, the Company also has unfunded, nonqualified defined benefit plans for executive officers and certain key management employees. The Company's net periodic benefit cost for these plans was $773,000 and $769,000 for the three months ended March 31,September 30, 2022 and 2021, respectively.respectively, and $2.3 million for both the nine months ended September 30, 2022 and 2021. The components of net periodic benefit cost for these plans are included in other income on the Consolidated Statements of Income.
Note 19 - Regulatory matters
The Company regularly reviews the need for electric and natural gas rate changes in each of the jurisdictions in which service is provided. The Company files for rate adjustments to seek recovery of operating costs and capital investments, as well as reasonable returns as allowed by regulators. Certain regulatory proceedings and cases may also contain recurring mechanisms that can have an annual true-up. Examples of these recurring mechanisms include: infrastructure riders, transmission trackers, renewable resource cost adjustment riders, as well as weather normalization and decoupling mechanisms. The following paragraphs summarize the Company's significant open regulatory proceedings and cases by jurisdiction including updates to those reported in the 2021 Annual Report.Report and should be read in conjunction with previous filings. The Company is unable to predict the ultimate outcome of these matters, the timing of final decisions of the various regulators and courts, or the effect on the Company's results of operations, financial position or cash flows.
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MNPUC
Great Plains defers the difference between the actual cost of gas spent to serve customers and that recovered from customers on a monthly basis. Annually, Great Plains prepares a true-up pursuant to the purchased gas adjustment tariff. On August 30, 2021, the MNPUC issued an order to allow Great Plains recovery of an out-of-cycle cost of gas adjustment of $8.8 million over a period of 27 months. The order was effective September 1, 2021, and iswas subject to a prudence review by the MNPUC. The requested increase was for the February 2021 extreme cold weather, primarily in the central United States, and market conditions surrounding the natural gas commodity market. TheOn October 19, 2022, the MNPUC prudence reviewissued a final order disallowing $845,000 of the gas costs. These costs, which were deferred as a regulatory asset in natural gas costs recoverable through rate adjustments, were then recorded to expense as they were no longer recoverable from customers.
On June 1, 2022, Great Plains filed an application with the MNPUC for a decrease in its depreciation and amortization rates of approximately $1.2 million annually or a decrease from a combined rate of 4.5 percent to 2.8 percent. Great Plains has requested the rates be retroactive to January 1, 2022. This matter is pending with an order to be issued on or before August 29, 2022.the MNPUC.
SDPUCNDPSC
Montana-Dakota has a transmission cost recovery rider that allows annual updates to rates for actual costs associated with transmission-related projects and services. On March 1,May 16, 2022, Montana-Dakota filed an annualapplication with the NDPSC for an electric general rate increase of approximately $25.4 million annually or 12.3 percent above current rates. The requested increase is primarily to recover investments in production, transmission and distribution facilities and the associated depreciation, operation and maintenance expenses and taxes associated with the increased investment. The NDPSC has 7 months to render a final decision on the rate case. On July 14, 2022, the NDPSC approved an interim rate increase of approximately $10.9 million annually or 5.3 percent above current rates, subject to refund, for service rendered on and after July 15, 2022. The lower interim rate increase is largely due to excluding the recovery of Heskett Unit 4, which is expected to be in service in the first half of 2023.
On July 15, 2022, Montana-Dakota filed an application with the NDPSC to request an update to its transmission cost recoveryadjustment rider requesting to recover a revenue requirementrevenues of approximately $2.5$12.9 million, annually, which reflectsincludes a true-up of the prior period adjustment, resulting in an increase ina decrease of $1.6 million from current rates. The request is to recover transmission-related expenses and the revenue requirement for transmission facilities not currently recovered through electric service rates. On October 5, 2022, the NDPSC approved the decrease with rates of approximately $1.5 million. This matter is pending before the SDPUC.effective November 1, 2022.
Montana-Dakota has an infrastructure ridera renewable resource cost adjustment rate tariff that allows for annual adjustments for recent projected capital costs and related expenses for projects determined to be recoverable under the electric tariff. On MarchNovember 1, 2022, Montana-Dakota filed an annual update to its infrastructure riderrenewable resource cost adjustment requesting to recover a revenue requirement of approximately $940,000 annually, which$17.9 million annually. The update reflects a true-up of the prior period adjustment, resulting in a decrease in current rates of approximately $88,000. On April 28, 2022,$127,000 from the SDPUC approved the rates as requested with an effective date of May 1, 2022.revenues currently included in rates.
WUTC
On September 30, 2021, Cascade filed an application with the WUTC for a natural gas rate increase of approximately $13.7 million annually or approximately 5.1 percent above current rates. The requested increase was primarily to recover investments made in infrastructure upgrades, as well as to recover 2021 wage increases. On March 22, 2022, Cascade filed a multi-party settlement and stipulation on behalf of Cascade and the staff of the WUTC that would result in a revenue requirement increase of approximately $10.7 million annually or approximately 4.0 percent above current rates. The WUTC has 11 months to renderissued a final decisionorder on August 23, 2022, adjusting the rate case. This matter is pending before the WUTC.

settlement primarily for 2020 actual depreciation expense. The final order approved an increase of $7.2 million annually with an effective date of September 1, 2022.
On March 24, 2022, Cascade filed a request for a tariff revision with the WUTC to rectify an inadvertent IRS normalization violation resulting from its tariff established in 2018 that passes back to customers the reversal of plant-related excess deferred income taxes through an annual rate adjustment. This request was made in response to the issuance of an IRS private letter ruling to another Washington utility with the same annual rate adjustment tariff, which addressed its normalization violation. The private letter ruling concluded the tariff to refund excess deferred income taxes without corresponding adjustments for other components of rate base or changes in depreciation or income tax expense, is an impermissible methodology under the IRS normalization and consistency rules. Cascade's request proposes a similar remedy through the tariff to recover the excess amounts refunded to customers while this tariff has been in place, and revises the method going forward to reflect excess deferred income taxes in rates in the same manner as other components of rate base from its most recent general rate case. Cascade has requested recovery of the excess refunded to customers of approximately $3.3 million and elimination of the currently deferred, but not yet refunded balance. A multi-party settlement was filed with the WUTC on October 21, 2022. This matter is pending before the WUTC.
On October 14, 2022, Cascade filed an update to its annual pipeline cost recovery mechanism requesting an increase in annual revenue of approximately $1.2 million or approximately 0.4 percent. The filing was effective November 1, 2022.
FERC
On September 1, 2022, Montana-Dakota filed an update to its transmission formula rate under the MISO tariff for its multi-value project and network upgrade charges for $15.4 million, which is effective January 1, 2023.
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Note 20 - Contingencies
The Company is party to claims and lawsuits arising out of its business and that of its consolidated subsidiaries, which may include, but are not limited to, matters involving property damage, personal injury, and environmental, contractual, statutory and regulatory obligations. The Company accrues a liability for those contingencies when the incurrence of a loss is probable and the amount can be reasonably estimated. If a range of amounts can be reasonably estimated and no amount within the range is a better estimate than any other amount, then the minimum of the range is accrued. The Company does not accrue liabilities when the likelihood that the liability has been incurred is probable but the amount cannot be reasonably estimated or when the liability is believed to be only reasonably possible or remote. For contingencies where an unfavorable outcome is probable or reasonably possible and which are material, the Company discloses the nature of the contingency and, in some circumstances, an estimate of the possible loss. Accruals are based on the best information available, but in certain situations management is unable to estimate an amount or range of a reasonably possible loss including, but not limited to when: (1) the damages are unsubstantiated or indeterminate, (2) the proceedings are in the early stages, (3) numerous parties are involved, or (4) the matter involves novel or unsettled legal theories.
At March 31,September 30, 2022 and 2021, and December 31, 2021, the Company accrued contingent liabilities, which have not been discounted, of $30.0$33.6 million, $55.0$34.7 million and $37.0 million, respectively. At March 31,September 30, 2022 and 2021, and December 31, 2021, the Company also recorded corresponding insurance receivables of $7.1$11.9 million, $31.6$11.7 million and $14.1 million, respectively, and regulatory assets of $20.8$20.5 million, $20.9$21.1 million and $21.2 million, respectively, related to the accrued liabilities. The accruals are for contingencies resulting from litigation, production taxes, royalty claims and environmental matters. This includes amounts that have been accrued for matters discussed in Environmental matters within this note. The Company will continue to monitor each matter and adjust accruals as might be warranted based on new information and further developments. Management believes that the outcomes with respect to probable and reasonably possible losses in excess of the amounts accrued, net of insurance
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recoveries, while uncertain, either cannot be estimated or will not have a material effect upon the Company's financial position, results of operations or cash flows. Unless otherwise required by GAAP, legal costs are expensed as they are incurred.
Environmental matters
The Company is a party to claims for the cleanup of environmental contamination at certain manufactured gas plant sites, as well as a superfund site. There were no material changes to the Company's environmental matters that were previously reported in the 2021 Annual Report.
Guarantees
Certain subsidiaries of the Company have outstanding guarantees to third parties that guarantee the performance of other subsidiaries of the Company. These guarantees are related to construction contracts, insurance deductibles and loss limits, and certain other guarantees. At March 31,September 30, 2022, the fixed maximum amounts guaranteed under these agreements aggregate $147.9$333.7 million. Certain of the guarantees also have no fixed maximum amounts specified. At March 31,September 30, 2022, the amounts of scheduled expiration of the maximum amounts guaranteed under these agreements aggregate to $48.5$10.8 million in 2022; $44.3$68.6 million in 2023; $44.3$110.6 million in 2024; $800,000$130.5 million in 2025; $800,000$1.3 million in 2026; $200,000$700,000 thereafter; and $9.0$11.2 million, which has no scheduled maturity date. There were no amounts outstanding under the previously mentioned guarantees at March 31,September 30, 2022. In the event of default under these guarantee obligations, the subsidiary issuing the guarantee for that particular obligation would be required to make payments under its guarantee.
Certain subsidiaries have outstanding letters of credit to third parties related to insurance policies and other agreements, some of which are guaranteed by other subsidiaries of the Company. At March 31,September 30, 2022, the fixed maximum amounts guaranteed under these letters of credit aggregated $29.2$25.0 million. At March 31,September 30, 2022, the amounts of scheduled expiration of the maximum amounts guaranteed under these letters of credit aggregate to $28.6$21.8 million in 2022, $2.7 million in 2023 and $600,000$500,000 in 2023.2024. There were no amounts outstanding under the previously mentioned letters of credit at March 31,September 30, 2022. In the event of default under these letter of credit obligations, the subsidiary guaranteeing the letter of credit would be obligated for reimbursement of payments made under the letter of credit.
In addition, Centennial, Knife River and MDU Construction Services have issued guarantees to third parties related to the routine purchase of maintenance items, materials and lease obligations for which no fixed maximum amounts have been specified. These guarantees have no scheduled maturity date. In the event a subsidiary of the Company defaults under these obligations, Centennial, Knife River or MDU Construction Services would be required to make payments under these guarantees. Any amounts outstanding by subsidiaries of the Company were reflected on the Consolidated Balance Sheet at March 31,September 30, 2022.
In the normal course of business, Centennial has surety bonds related to construction contracts and reclamation obligations of its subsidiaries. In the event a subsidiary of Centennial does not fulfill a bonded obligation, Centennial would be responsible to the surety bond company for completion of the bonded contract or obligation. A large portion of the surety bonds is expected to expire within the next 12 months; however, Centennial will likely continue to enter into surety bonds for its subsidiaries in the future. At March 31,September 30, 2022, approximately $1.1 billion$932.4 million of surety bonds were outstanding, which were not reflected on the Consolidated Balance Sheet.
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Variable interest entities
The Company evaluates its arrangements and contracts with other entities to determine if they are VIEs and if so, if the Company is the primary beneficiary.
Fuel Contract Coyote Station entered into a coal supply agreement with Coyote Creek that provides for the purchase of coal necessary to supply the coal requirements of the Coyote Station for the period May 2016 through December 2040. Coal purchased under the coal supply agreement is reflected in inventories on the Consolidated Balance Sheets and is recovered from customers as a component of electric fuel and purchased power.
The coal supply agreement creates a variable interest in Coyote Creek due to the transfer of all operating and economic risk to the Coyote Station owners, as the agreement is structured so that the price of the coal will cover all costs of operations, as well as future reclamation costs. The Coyote Station owners are also providing a guarantee of the value of the assets of Coyote Creek as they would be required to buy the assets at book value should they terminate the contract prior to the end of the contract term and are providing a guarantee of the value of the equity of Coyote Creek in that they are required to buy the entity at the end of the contract term at equity value. Although the Company has determined that Coyote Creek is a VIE, the Company has concluded that it is not the primary beneficiary of Coyote Creek because the authority to direct the activities of the entity is shared by the four unrelated owners of the Coyote Station, with no primary beneficiary existing. As a result, Coyote Creek is not required to be consolidated in the Company's financial statements.
At March 31,September 30, 2022, the Company's exposure to loss as a result of the Company's involvement with the VIE, based on the Company's ownership percentage, was $31.0$30.0 million.
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Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations
The Company is Building a Strong America® by providing essential infrastructure and services through its regulated energy delivery and construction materials and services businesses.services. The Company and its employees work hard to keep the economy of America moving with the products and services provided, which include powering, heating and connecting homes, factories, offices and stores; and building roads, highways, data infrastructure and airports.
The Company's two-platform business model, regulated energy delivery and construction materials and services, are each comprised of different operating segments. Most of these segments experience seasonality related to the industries in which they operate. The two-platform approach helps balance this seasonality and the risks associated with each type of industry. The Company is authorized to conduct business in nearly every state in the United States and during peak construction season has employed over 16,000 employees. The Company's organic investments are strong drivers of high-quality earnings and continue to be an important part of the Company's growth. Management believes the Company is well positioned in the industries and markets in which it operates.
On August 4, 2022, the Company announced its Board of Directors unanimously approved a plan to pursue a separation of Knife River from the Company. The separation is planned as a tax-free spinoff transaction to the Company’s stockholders for U.S. federal income tax purposes. The transaction is expected to result in two independent, publicly traded and well-capitalized companies. Completion of the separation will be subject to, among other things, the effectiveness of a registration statement on Form 10 with the SEC, final approval from the Company’s Board of Directors, receipt of a tax opinion and a private letter ruling from the IRS, and other customary conditions. The Company may, at any time and for any reason until the proposed transaction is complete, abandon the separation or modify or change its terms. The separation is expected to be complete in 2023, but there can be no assurance regarding the ultimate timing of the separation or that the separation will ultimately occur. See Part II, Item 1A. Risk Factors for a description of some of the risks and uncertainties associated with the proposed transaction.
As the next step of the Company's strategic planning, on November 2, 2022, the Board of Directors unanimously determined the best way to optimize value would be to create two pure-play companies: a leading construction materials company and a regulated energy delivery company. Accordingly, the board has authorized management to commence a strategic review process for MDU Construction Services with the objective of achieving the board’s goal of creating two pure-play public companies. See Part II, Item 1A. Risk Factors for a description of some of the risks and uncertainties with the proposed future structure.
The Company continues to effectively execute its strategymanage the inflationary pressures experienced throughout the United States. Inflation rates in the Unites States have increased significantly, relative to historical precedent, and is continually adjustingmay continue to rise. The Company has continued to evaluate its businesses in response to the ongoing effects of the COVID-19 pandemic. Most of the Company'sand has increased pricing for its products and services where necessary as evidenced by the increase in revenues recognized in 2022. The ability to raise selling prices to cover higher costs due to inflation are considered essentialsubject to Americacustomer demand, industry competition and the availability of materials, among other things. Rising interest rates have resulted in and will likely continue to result in higher borrowing costs on new debt, resulting in impacts to the Company's asset valuations and negatively impacting the purchasing power of its communities and, as a result, operations have generally continued. customers.
The Company continues to monitor the situationimpact that inflation, rising interest rates, rising commodity prices and theresupply chain disruptions may have been no material adverse impacts from COVID-19 on its businesses and customers and proactively looks for ways to lessen the Company's results of operations.impact to its businesses. For more information on possible impacts to the Company's businesses, see the Outlook for each segment below and Part I, Item 1A. Risk Factors in the 2021 Form 10-K.Annual Report.
Forward-Looking Statements
The following sections contain forward-looking statements within the meaning of Section 21E of the Exchange Act. Forward-looking statements are all statements other than statements of historical fact, including without limitation those statements that are identified by the words "anticipates," "estimates," "expects," "intends," "plans," "predicts" and similar expressions, and include statements concerning plans, trends, objectives, goals, strategies, future events, including the separation of Knife River, or performance, and underlying assumptions (many of which are based, in turn, upon further assumptions) and other statements that are other than statements of historical facts. From time to time, the Company may publish or otherwise make available forward-looking statements of this nature, including statements contained within Business Segment Financial and Operating Data.
Forward-looking statements involve risks and uncertainties, which could cause actual results or outcomes to differ materially from those expressed. The Company's expectations, beliefs and projections are expressed in good faith and are believed by the Company to have a reasonable basis, including without limitation, management's examination of historical operating trends, data contained in the Company's records and other data available from third parties. Nonetheless, the Company's expectations, beliefs or projections may not be achieved or accomplished and changes in such assumptions and factors could cause actual future results to differ materially.
Any forward-looking statement contained in this document speaks only as of the date on which the statement is made, and the Company undertakes no obligation to update any forward-looking statement or statements to reflect events or circumstances that occur after the date on which the statement is made or to reflect the occurrence of unanticipated events.events, except as required by law. New factors emerge from time to time, and it is not possible for management to predict all the factors, nor can it assess the effect of each factor on the Company's business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statement. All forward-looking statements, whether written or oral and whether made by or on behalf of the Company, are expressly qualified by the risk factors and cautionary statements reported in Part II, Item 1A. Risk Factors in this quarterly report, Part I, Item 1A. Risk Factors in the 2021 Annual Report and subsequent filings with the SEC.
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Consolidated Earnings Overview
The following table summarizes the contribution to the consolidated income by each of the Company's business segments.
Three Months EndedThree Months EndedNine Months Ended
March 31,September 30,
2022 2021  2022 2021 2022 2021 
(In millions, except per share amounts)(In millions, except per share amounts)
ElectricElectric$11.3 $10.7 Electric$21.6 $20.6 $37.5 $41.6 
Natural gas distributionNatural gas distribution36.3 36.2 Natural gas distribution(18.1)(15.4)10.8 20.1 
PipelinePipeline7.3 8.9 Pipeline9.8 10.6 24.3 28.7 
Construction materials and contractingConstruction materials and contracting(40.0)(30.8)Construction materials and contracting102.8 96.3 95.3 116.9 
Construction servicesConstruction services21.3 29.8 Construction services28.0 23.1 83.8 81.8 
OtherOther(4.5)(2.7)Other3.8 3.8 (1.4)2.2 
Income from continuing operationsIncome from continuing operations31.7 52.1 Income from continuing operations147.9 139.0 250.3 291.3 
Discontinued operations, net of taxDiscontinued operations, net of tax— — Discontinued operations, net of tax— .3 .1 .3 
Net incomeNet income$31.7 $52.1 Net income$147.9 $139.3 $250.4 $291.6 
Earnings per share - basic:Earnings per share - basic: Earnings per share - basic: 
Income from continuing operationsIncome from continuing operations$.16 $.26 Income from continuing operations$.73 $.68 $1.23 $1.44 
Discontinued operations, net of taxDiscontinued operations, net of tax— — Discontinued operations, net of tax— — — — 
Earnings per share - basicEarnings per share - basic$.16 $.26 Earnings per share - basic$.73 $.68 $1.23 $1.44 
Earnings per share - diluted:Earnings per share - diluted: Earnings per share - diluted: 
Income from continuing operationsIncome from continuing operations$.16 $.26 Income from continuing operations$.73 $.68 $1.23 $1.44 
Discontinued operations, net of taxDiscontinued operations, net of tax— — Discontinued operations, net of tax— — — — 
Earnings per share - dilutedEarnings per share - diluted$.16 $.26 Earnings per share - diluted$.73 $.68 $1.23 $1.44 
Three Months Ended March 31,September 30, 2022, Compared to Three Months Ended March 31,September 30, 2021 The Company's consolidated earnings increased $8.6 million.
The Company's earnings primarily benefited from earnings at the construction businesses. The construction materials and contracting business benefited from higher average pricing on materials and increased contracting workloads, and the construction services business benefited from higher margins on electrical and mechanical work, primarily in the industrial, institutional and commercial sectors, as well as higher utility margins. Both of the construction business's earnings were negatively impacted by inflationary pressures, including higher diesel fuel and other operating costs; however, these costs are largely being recovered through price increases. Earnings at the electric business were positively impacted by interim rate relief in certain jurisdictions and lower operation and maintenance expenses as a result of the coal-fired electric plant closures and the absence of a planned maintenance outage in 2021. Partially offsetting the increased earnings was an increased seasonal loss at the natural gas distribution business as a result of higher operating expenses, including increased subcontractor costs and depreciation expense, and increased interest expense at the pipeline business as a result of higher debt balances, partially offset by the net benefit of the North Bakken Expansion project. Also negatively impacting results were transaction costs of $4.1 million, after tax, associated with the anticipated spinoff of Knife River included in Other.
Nine Months Ended September 30, 2022, Compared to Nine Months Ended September 30, 2021 The Company's consolidated earnings decreased $20.4$41.2 million.
The Company experienced decreased earnings across most of the Company's businesses. While the construction materials and contracting business experienced lower margins from higher average pricing on materials and increased contracting workloads, results were negatively impacted by ongoing inflationary pressures, including higher diesel fuel repair and maintenance and labor-related costs, partially offset by increased average product pricing.other operating costs. The construction servicesnatural gas distribution business experienced decreased gross margin largely attributable to lower industrial margins due to the timing of projectshigher operating expenses, including subcontractor costs, as well as higher depreciation and less storm-repair and fire-hardening power line work that is typically higher-margin work, offset in part by increased commercial margins. The pipeline business experienced decreased natural gas storage-related revenue and higher operatinginterest expenses, partially offset by increased demand revenues associated withsales volumes and approved rate recovery in certain jurisdictions. The pipeline business experienced higher interest expense and lower non-regulated project margins, partially offset by the net benefit of the North Bakken Expansion project. Increased operating costs related to a planned maintenance outage at Coyote Station along with lower per unit average rates decreased earnings at the electric business, partially offset by interim rate relief in certain jurisdictions and higher transmission revenues. The Company's earnings were further impacted by $6.2$20.8 million in lower returns on certain of the Company's nonqualified benefit plan investments.investments, as discussed in Note 14, and the transaction costs of $4.1 million, after tax, associated with the anticipated spinoff of Knife River included in Other. Partially offsetting thesethe decreases were higher residential retail sales volumesincreased earnings at the electricconstruction services business resulting primarily from higher commercial and service margins and earnings from the Company's joint ventures, partially offset by higher overall operating costs related to inflationary pressures and higher retail sales volumes across all customer classes, as well as approved rate relief in certain jurisdictions, at the natural gas distribution business.selling, general and administrative expenses.
A discussion of key financial data from the Company's business segments follows.
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Business Segment Financial and Operating Data
The following sections include key financial and operating data for each of the Company's business segments. Also included are highlights on key growth strategies, projections and certain assumptions for the Company and its subsidiaries and other matters of the Company's business segments.
For information pertinent to various commitments and contingencies, see the Notes to Consolidated Financial Statements. For a summary of the Company's business segments, see Note 17 of the Notes to Consolidated Financial Statements.
Electric and Natural Gas Distribution
Strategy and challenges The electric and natural gas distribution segments provide electric and natural gas distribution services to customers, as discussed in Note 17. Both segments strive to be top performing utility companies measured by integrity, employee safety and satisfaction, customer service and shareholderstockholder return. The segments provide safe, reliable, competitively priced and environmentally responsible energy service to customers while focusing on growth and expansion opportunities within and beyond its existing territories. The Company is focused on cultivating organic growth while managing operating costs and monitoring opportunities for these segments to retain, grow and expand their customer base through extensions of existing operations, including building and upgrading electric generation, transmission and distribution, and natural gas systems, and through selected acquisitions of companies and properties with similar operating and growth objectives at prices that will provide stable cash flows and an opportunity to earn a competitive return on investment. The continued efforts to create operational improvements and efficiencies across both segments promotes the Company's business integration strategy. The primary factors that impact the results of these segments are the ability to earn authorized rates of return, the cost of natural gas, cost of electric fuel and
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purchased power, weather, climate change initiatives, competitive factors in the energy industry, population growth and economic conditions in the segments' service areas.
The electric and natural gas distribution segments are subject to extensive regulation in the jurisdictions where they conduct operations with respect to costs, timely recovery of investments and permitted returns on investment. The Company is focused on modernizing utility infrastructure to meet the varied energy needs of both its customers and communities while ensuring the delivery of safe, reliable, affordable and environmentally responsible reliable and affordable energy. The segments continue to invest in facility upgrades to be in compliance with existing and known future regulations. To assist in the reduction of regulatory lag in obtaining revenue increases to align with increased investments, tracking mechanisms have been implemented in certain jurisdictions. The Company also seeks rate adjustments for operating costs and capital investments, as well as reasonable returns on investments, not covered by tracking mechanisms. For more information on the Company's tracking mechanisms and recent cases, see Note 19 and the 2021 Annual Report.
TheThese segments are also subject to extensive regulation related to certain operational and environmental compliance, cybersecurity, permit terms and system integrity. Both segments are faced with the ongoing need to actively evaluate cybersecurity processes and procedures related to its transmission and distribution systems for opportunities to further strengthen its cybersecurity protections. Implementation of enhancements and additional requirements is ongoing.
To date, many states have enacted and others are considering, mandatory clean energy standards requiring utilities to meet certain thresholds of renewable and/or carbon-free energy supply. The current presidential administration has made climate change a focus, as further discussed in the Outlook section. Over the long-term, the Company expects overall electric demand to be positively impacted by increased electrification trends, including electric vehicle adoption, as a means to address economy-wide carbon emission concerns and changing customer conservation patterns. MISO and NERC have recently announced concerns with reliability of the electric grid due to capacity shortages, which has resulted from rapid expansion of renewables and rapid reduction of baseload resources such as coal, while load growth has increased faster than expected. MISO has recently approved a seasonal resource adequacy construct, or accreditation process, versus the existing annual summer peak capacity requirement process. The new construct will include a higher planning reserve margin in winter, spring and fall and a higher Coincident Load Factor for Montana-Dakota in the winter season. This is a change from the current summer requirement only process. Both of these will likely require Montana-Dakota to obtain additional accredited seasonal capacity. These initiativeschanges could result in increased costs to produce electricity and procure natural gas. Theelectricity; however, the impact of these initiativeschanges on the Company is unknown. The Company will continue to monitor the progress of these initiativeschanges and assess the potential impacts they may have on its stakeholders, business processes, results of operations, cash flows and disclosures.
Revenues are impacted by both customer growth and usage, the latter of which is primarily impacted by weather, as well as impacts associated with commercial and industrial slow-downs, including economic recessions, and energy efficiencies. Very cold winters increase demand for natural gas and to a lesser extent, electricity, while warmer than normal summers increase demand for electricity, especially among residential and commercial customers. Average consumption among both electric and natural gas customers has tended to decline as more efficient appliances and furnaces are installed, and as the Company has implemented conservation programs. Natural gas weather normalization and decoupling mechanisms in certain jurisdictions have been implemented to largely mitigate the effect that would otherwise be caused by variations in volumes sold to these customers due to weather and changing consumption patterns on the Company's distribution margins.
The electricCompany continues to monitor and natural gas distribution segments continuework with its manufacturers to facereduce the effects of increased pricing and lead times on delivery of certain raw materials and equipment used in electric transmission and distribution system and natural gas pipeline
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projects. Long lead times are attributable to increased demand for steel products from pipeline companies as they continue pipeline system safety and integrity replacement projects driven by PHMSA regulations, as well as delays in the manufacturing and shipping of electrical equipment as a result of the COVID-19 pandemic and subsequent supply chain issues. In addition, theWhile not material, these segments are currently experiencing increased fuel costs as well as other general inflationary pressures. The Company continues to monitor these risks and has practices in place to minimize the impacts of long lead timeshave experienced delays and inflationary pressures, including increased costs such as working with manufacturersrelated to proactively order impacted materials, as well as working with additional suppliers. The segments have not experienced material delays or inflationary pressures.purchased natural gas and capital expenditures. The Company expects these delays and inflationary pressures to continue throughout the remainder of 2022.2022 and into 2023.
The ability to grow through acquisitions is subject to significant competition and acquisition premiums. In addition, the ability of the segments to grow their service territory and customer base is affected by regulatory constraints, the economic environment of the markets served and competition from other energy providers and fuels. As the industry continues to expand the use of renewable energy sources, the need for additional transmission is growing. On July 25, 2022, as part of its long range transmission plan, MISO announced approval of 18 transmission projects totaling $10.3 billion of investments in MISO's midwest subregion, of which Montana-Dakota is a part. As part of MISO's long range transmission plan, in August 2022, the Company announced its intent to develop, construct and co-own an approximately 95 mile 345 kV transmission line with Otter Tail Power Company in central North Dakota. The construction of new electric generating facilities, transmission lines and other service facilities is subject to increasing costs and lead times, extensive permitting procedures, and federal and state legislative and regulatory initiatives, which may necessitate increases in electric energy prices.
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Earnings overview - The following information summarizes the performance of the electric segment.
Three Months EndedThree Months EndedNine Months Ended
March 31,September 30,September 30,
2022 2021 Variance 2022 2021 Variance2022 2021 Variance
(In millions)(In millions)
Operating revenuesOperating revenues$93.7 $84.8 10 %Operating revenues$99.3 $99.1 — %$278.6 $267.7 %
Operating expenses:Operating expenses: Operating expenses:  
Electric fuel and purchased powerElectric fuel and purchased power26.3 18.6 41 %Electric fuel and purchased power20.1 19.5 %68.3 56.2 22 %
Operation and maintenanceOperation and maintenance30.8 31.3 (2)%Operation and maintenance28.7 31.2 (8)%91.0 93.8 (3)%
Depreciation, depletion and amortizationDepreciation, depletion and amortization16.9 16.1 %Depreciation, depletion and amortization15.7 17.0 (8)%52.0 50.0 %
Taxes, other than incomeTaxes, other than income4.6 4.9 (6)%Taxes, other than income4.4 4.1 %13.5 13.7 (1)%
Total operating expensesTotal operating expenses78.6 70.9 11 %Total operating expenses68.9 71.8 (4)%224.8 213.7 %
Operating incomeOperating income15.1 13.9 %Operating income30.4 27.3 11 %53.8 54.0 — %
Other income (expense)Other income (expense)(.3).5 (160)%Other income (expense).5 1.2 (58)%(.8)3.4 (124)%
Interest expenseInterest expense7.1 6.5 %Interest expense7.0 6.6 %21.0 19.8 %
Income before income taxesIncome before income taxes7.7 7.9 (3)%Income before income taxes23.9 21.9 %32.0 37.6 (15)%
Income tax benefit(3.6)(2.8)29 %
Income tax (benefit) expenseIncome tax (benefit) expense2.3 1.3 77 %(5.5)(4.0)38 %
Net incomeNet income$11.3 $10.7 %Net income$21.6 $20.6 %$37.5 $41.6 (10)%
Operating statisticsOperating statisticsThree Months EndedOperating statisticsThree Months EndedNine Months Ended
March 31,September 30,
2022 2021 2022 2021 2022 2021 
Revenues (millions):
Revenues (millions)Revenues (millions)
Retail sales:Retail sales:Retail sales:
ResidentialResidential$35.2 $31.9 Residential$36.6 $35.4 $100.6 $96.0 
CommercialCommercial33.6 31.4 Commercial38.4 38.0 105.3 102.5 
IndustrialIndustrial9.8 9.6 Industrial10.8 10.2 31.3 29.9 
OtherOther1.6 1.5 Other2.0 1.9 5.4 5.2 
80.2 74.4 87.8 85.5 242.6 233.6 
Transportation and otherTransportation and other13.5 10.4 Transportation and other11.5 13.6 36.0 34.1 
$93.7 $84.8 $99.3 $99.1 $278.6 $267.7 
Retail sales (million kWh)
Volumes (million kWh)Volumes (million kWh)
Retail Sales:Retail Sales:
ResidentialResidential357.7 334.9 Residential304.9 317.3 906.7 906.3 
CommercialCommercial364.1 361.8 Commercial358.3 393.0 1,051.7 1,101.9 
IndustrialIndustrial140.3 144.5 Industrial143.7 145.1 431.7 433.7 
OtherOther19.5 19.2 Other21.6 23.8 61.7 65.1 
881.6 860.4 828.5 879.2 2,451.8 2,507.0 
Average cost of electric fuel and purchased power per kWhAverage cost of electric fuel and purchased power per kWh$.027 $.019 Average cost of electric fuel and purchased power per kWh$.022 $.020 $.026 $.020 
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Three Months Ended March 31,September 30, 2022, Compared to Three Months Ended March 31,September 30, 2021 Electric earnings increased $1.0 million as a result of:
Revenue was comparable to the same period in the prior year. Interim rate relief in certain jurisdictions was mostly offset by lower retail sales volumes across all customer classes.
Electric fuel and purchased power increased $600,000 as a result of increased energy costs, offset in revenue above.
Operation and maintenance decreased $2.5 million.
Largely the result of:
Decreased payroll-related costs, largely due to lower incentive accruals of $1.2 million and plant closures of $700,000.
Decreased contract services due to lower transmission expense and the absence of the Big Stone Station outage costs during 2021.
Depreciation, depletion and amortization decreased $1.3 million.
Primarily due to decreased amortization of plant retirement and closure costs of $1.6 million resulting from an extension to the recovery period for these costs, which are recovered in operating revenues, as discussed in Note 13.
Partially offset by increased property, plant and equipment balances, primarily as a result of transmission projects placed in service.
Taxes, other than income were comparable to the same period in the prior year.
Other income decreased $700,000, primarily resulting from lower returns on the Company's nonqualified benefit plan investments, as discussed in Note 14.
Interest expense increased $400,000, largely resulting from higher long-term debt balances from debt issued in 2021, partially offset by higher AFUDC largely due to higher rates.
Income tax expense increased $1.0 million, largely due to higher income before income taxes and lower production tax credits of $400,000 driven by lower wind production.
Nine Months Ended September 30, 2022, Compared to Nine Months Ended September 30, 2021 Electric earnings decreased $4.1 million as a result of:
Revenue increased $8.9$10.9 million.
Largely due to:
Higher fuel and purchased power costs of $12.1 million recovered in customer rates that wereand offset in expense, as described below.
Higher retail sales volumesInterim rate relief in certain jurisdictions of 2.5 percent, primarily residential retail sales as a result of colder weather.$2.5 million.
Higher transmission revenues, primarily from higher net transmission of $700,000$2.3 million and higher transmission interconnect upgrades of $600,000.$500,000.
Partially offset by lowerby:
Lower renewable tracker revenues associated with higher production tax credits.
Lower per unit average rates of $900,000.$1.9 million related to block rates in certain jurisdictions.
Electric fuel and purchased power increased $7.7$12.1 million.
Primarily the result of higher MISO costs of $9.2 million as a result of increased energy costs.
Partiallycosts, partially offset by decreased fuel costs associated with the Heskett Station and Lewis & Clark Station and Heskett Station plant closures.
Operation and maintenance decreased $500,000.$2.8 million.
Largely resulting from decreasedPrimarily due to:
Decreased payroll-related costs, of $1.0 million, largely due to lower incentive accruals of $2.2 million and plant closures of $2.1 million, as previously discussed.
Decreased materials costs of $1.2 million as a result of plant closures, as previously discussed.
Reduced costs from the Heskett Station plant closure and the absence of the Big Stone outage during 2021.
Partially offset by increased contract service costs including transmission engineering costs as well as maintenance costsassociated with a planned outage at Coyote Station and Wygen III.of $2.6 million.
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Depreciation, depletion and amortization increased $800,000,$2.0 million, primarily due to:
Increased amortization of plant retirement and closure costs of $1.2 million recovered in operating revenues, as discussed in Note 13.
Increased property, plant and equipment balances placed in service, largely related to growth and replacement projects.
Taxes, other than income were comparable to the same period in the prior year.
Other income (expense) decreased $800,000.
Largely$4.2 million, largely lower returns on certain of the Company's nonqualified benefit plan investments of $1.2 million.$4.4 million, as discussed in Note 14, partially offset by higher AFUDC largely due to higher rates.
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PartiallyInterest expense increased $1.2 million, largely resulting from higher long-term debt balances from debt issued in 2021, partially offset by higher AFUDC largely due to higher rates.
Interest expense increased $600,000, largely resulting from higher long-term debt balances from debt issued in 2021.
Income tax benefit increased $800,000.$1.5 million.
Largely due to higherto:
Higher production tax credits of $1.1$1.5 million driven by higher wind production.
Lower income before income taxes.
Partially offset by lower permanent tax adjustments and excess deferred tax amortization.amortization of $700,000.
Earnings overview - The following information summarizes the performance of the natural gas distribution segment.
Three Months EndedThree Months EndedNine Months Ended
March 31,September 30,September 30,
2022 2021 Variance 2022 2021 Variance2022 2021 Variance
(In millions)(In millions)
Operating revenuesOperating revenues$450.6 $350.4 29 %Operating revenues$132.2 $110.5 20 %$793.3 $614.8 29 %
Operating expenses:Operating expenses: Operating expenses:  
Purchased natural gas soldPurchased natural gas sold293.3 202.2 45 %Purchased natural gas sold65.3 44.9 45 %481.3 318.0 51 %
Operation and maintenanceOperation and maintenance54.1 51.2 %Operation and maintenance49.5 47.7 %154.4 145.0 %
Depreciation, depletion and amortizationDepreciation, depletion and amortization22.2 22.5 (1)%Depreciation, depletion and amortization22.7 21.5 %67.4 64.2 %
Taxes, other than incomeTaxes, other than income24.7 20.9 18 %Taxes, other than income11.4 10.6 %51.3 44.7 15 %
Total operating expensesTotal operating expenses394.3 296.8 33 %Total operating expenses148.9 124.7 19 %754.4 571.9 32 %
Operating income56.3 53.6 %
Other income (expense)(.4)1.7 (124)%
Operating income (loss)Operating income (loss)(16.7)(14.2)18 %38.9 42.9 (9)%
Other incomeOther income1.4 1.3 %.3 5.4 (94)%
Interest expenseInterest expense9.5 9.2 %Interest expense10.7 9.3 15 %29.8 27.6 %
Income before income taxes46.4 46.1 %
Income tax expense10.1 9.9 %
Net income$36.3 $36.2 — %
Income (loss) before income taxesIncome (loss) before income taxes(26.0)(22.2)17 %9.4 20.7 (55)%
Income tax (benefit) expenseIncome tax (benefit) expense(7.9)(6.8)16 %(1.4).6 (333)%
Net income (loss)Net income (loss)$(18.1)$(15.4)17 %$10.8 $20.1 (46)%
Operating statisticsOperating statisticsThree Months EndedOperating statisticsThree Months EndedNine Months Ended
March 31,September 30,
2022 2021 2022 2021 2022 2021 
Revenues (millions)Revenues (millions)Revenues (millions)
Retail sales:Retail sales:Retail sales:
ResidentialResidential$258.6 $203.9 Residential$64.9 $55.3 $438.5 $344.0 
CommercialCommercial162.7 120.6 Commercial44.5 35.6 278.3 204.5 
IndustrialIndustrial13.0 8.9 Industrial7.2 5.4 29.2 20.5 
434.3 333.4 116.6 96.3 746.0 569.0 
Transportation and otherTransportation and other16.3 17.0 Transportation and other15.6 14.2 47.3 45.8 
$450.6 $350.4 $132.2 $110.5 $793.3 $614.8 
Volumes (MMdk)Volumes (MMdk)Volumes (MMdk)
Retail sales:Retail sales:Retail sales:
ResidentialResidential31.0 28.8 Residential4.5 4.5 47.3 42.3 
CommercialCommercial20.5 18.6 Commercial4.2 4.2 32.9 29.3 
IndustrialIndustrial1.8 1.5 Industrial.9 .9 3.9 3.5 
53.3 48.9 9.6 9.6 84.1 75.1 
Transportation sales:Transportation sales:Transportation sales:
CommercialCommercial.7 .7 Commercial.3 .2 1.4 1.3 
IndustrialIndustrial41.0 43.9 Industrial42.1 44.7 118.0 127.5 
41.7 44.6 42.4 44.9 119.4 128.8 
Total throughputTotal throughput95.0 93.5 Total throughput52.0 54.5 203.5 203.9 
Average cost of natural gas per dkAverage cost of natural gas per dk$5.50 $4.13 Average cost of natural gas per dk$6.82 $4.72 $5.72 $4.24 
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Three Months Ended March 31,September 30, 2022, Compared to Three Months Ended March 31,September 30, 2021 Natural gas distribution's earningsseasonal loss increased $100,000$2.7 million as a result of:
Operating revenues increased $100.2$21.7 million, largely resulting from:
Higher purchased natural gas sold of $19.5 million recovered in customer rates that was offset in expense, as described below.
Higher weather normalization and decoupling mechanisms of $2.6 million in certain jurisdictions.
Purchased natural gas sold increased $20.4 million, primarily due to higher natural gas costs as a result of higher market prices, including the higher recovery of purchased gas adjustments related to the February 2021 cold weather event and the 2018 Enbridge pipeline rupture. Purchased natural gas sold includes the disallowance of $845,000 ordered by MNPUC, as discussed in Note 19.
Operation and maintenance increased $1.8 million largely resulting from higher subcontractor costs.
Depreciation, depletion and amortization increased $1.2 million, primarily resulting from increased property, plant and equipment balances from growth and replacement projects placed in service.
Taxes, other than income increased $800,000, largely from higher revenue-based taxes which are recovered in rates.
Other income was comparable to the same period in the prior year. Lower returns on the Company's nonqualified benefit plan investments were largely offset by higher interest income.
Interest expense increased $1.4 million, primarily due to higher long-term debt balances from debt issued in 2022 and 2021 and higher interest rates, partially offset by higher AFUDC of $400,000.
Income tax benefit increased $1.1 million as a result of an increased seasonal loss.
Nine Months Ended September 30, 2022, Compared to Nine Months Ended September 30, 2021 Natural gas distribution's earnings decreased $9.3 million as a result of:
Operating revenues increased $178.5 million, largely resulting from:
Higher purchased natural gas sold of $162.4 million recovered in customer rates that was offset in expense, as described below.
Higher retail sales volumes of approximately 9.012.0 percent across all customer classes due to colder weather, partially offset by weather normalization and decoupling mechanisms in certain jurisdictions.
Higher revenue-based taxes recovered in rates of $3.8$6.4 million that were offset in expense, as described below.
Approved rate relief in certain jurisdictionsHigher pipeline replacement mechanisms of $1.2$1.3 million, as well as higher cost recovery and tracker mechanismsapproved rate relief of $1.0$1.2 million.
Purchased natural gas sold increased $91.1$163.3 million, primarily due to:
Higher natural gas costs as a result of higher market prices.
Higherprices of $125.1 million, including the higher recovery of purchased gas adjustments of $30.0 million related to the February 2021 cold weather event and the 2018 Enbridge pipeline rupture.
Higher volumes of natural gas purchased.
Operation and maintenance increased $2.9 million,$9.4 million.
Primarily due to:
IncreasedHigher contract services of $1.3$4.5 million, primarily higher subcontractor costs.
Higher payroll-related costs of $1.0 million, largely higher straight-time payroll.
Higher software costs of $1.7 million.
Higher other costs, partially resulting from inflation, including vehicle fuel costs of $800,000; higher bad debt expense of $700,000; and higher office, travel, materials, and other miscellaneous employee costs.
Depreciation, depletion and amortization was comparable to the same periodincreased $3.2 million from increased property, plant and equipment balances from growth and replacement projects placed in the prior year.service.
Taxes, other than income increased $3.8$6.6 million resulting from higher revenue-based taxes beingwhich are recovered in rates.
Other income (expense) decreased $2.1$5.1 million, as aprimarily the result of lower returns on certain of the Company's nonqualified benefit plan investments.investments of $6.8 million, as discussed in Note 14, partially offset by increased interest income.
Interest expense was comparableincreased $2.2 million, primarily due to the same periodhigher long-term debt balances from debt issued in the prior year.2022 and 2021 and higher interest rates, partially offset by higher AFUDC.
Income tax (benefit) expense was comparable todecreased $2.0 million, largely the same period in the prior year.result of lower income before income taxes.
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Outlook The Company expects these segments will grow rate base by approximately 5 percent annually over the next five years on a compound basis. Operations are spread across eight states where the Company expects customer growth to be higher than the national average. In 2021, these segments experienced retail customer growth of approximately 1.7 percent, and theThe Company expects customer growth to continue to average 1 percent to 2 percent per year.year and as of September 30, 2022, these segments experienced retail customer growth of approximately 1.6 percent. This customer growth, along with system upgrades and replacements needed to supply safe and reliable service, will require investments in new and replacement electric and natural gas systems.
These segments are exposed to energy price volatility and may be impacted by changes in oil and natural gas exploration and production activity. Rate schedules in the jurisdictions in which the Company's natural gas distribution segment operates contain clauses that permit the Company to file for rate adjustments for changes in the cost of purchased natural gas. Although changes in the price of natural gas are passed through to customers and have minimal impact on the Company's earnings, the natural gas distribution segment's customers benefit from lower natural gas prices through the Company's utilization of storage and fixed price contracts. During the last half of 2021 and the first quarter ofin 2022, the Company experienced increased natural gas prices and expects this trend to continue through the next winter heating season due to the increase in demand outpacing the supply along with the impact of global events. As a result, the Company filed an out-of-cycle cost of gas adjustment in Idaho to assist in the timely recovery of these costs. The Company will continue to monitor natural gas prices, as well as oil and natural gas production levels.
In February 2019, the Company announced the retirement of three aging coal-fired electric generating units, resulting from the Company's analysis showing that the plants are no longer expected to be cost competitive for customers.units. The Company ceased operations of Unit 1 at Lewis & Clark Station in Sidney, Montana, in March 2021 and Units 1 and 2 at Heskett Station near Mandan, North Dakota, in February 2022. In addition, in May 2022 the Company will beginbegan construction of Heskett Unit 4, an 88-MW simple-cycle natural gas-fired combustion turbine peaking unit at the existing Heskett Station near Mandan, North Dakota, in the second quarter of 2022 with an expected in service date in the first half of 2023.
The Company is one of four owners of Coyote Station and cannot make a unilateral decision on the plant's future; therefore, the Company could be negatively impacted by decisions of the other owners. StateIn September 2021, Otter Tail Power Company filed its 2022 Integrated Resource Plan in Minnesota and North Dakota, which included its intent to start the process of withdrawal from its 35 percent ownership interest in Coyote Station with an anticipated exit from the plant by December 31, 2028. In October 2022, Otter Tail Power Company requested permission from the MNPUC to extend the deadline for its Integrated Resource Plan with the intent to update its modeling in light of recent developments in the industry, including capacity requirements in MISO. The joint owners continue to collaborate in analyzing data and weighing decisions that impact the plant and its employees as well as each company's customers and communities served. Further state implementation of pollution control plans to improve visibility at Class I areas, such as national parks, under the EPA's Regional Haze Rule could require the owners of Coyote Station to incur significant new costs. If the owners decide to incur such costs, the costs could, dependent on determination by state regulatory commissions on approval to recover such costs from customers, negatively impact the Company's results of operations, financial position and cash flows. The NDDEQ submitted a drafttheir state implementation plan to the EPA in August 2022 and federal land managers ofexpects a decision on the National Park Service, the United States Fish and Wildlife Service and the United States Forest Service for consultation, and the federal land managers haveplan sometime in 2023. The plan, as submitted comments back toby the NDDEQ, for review. North Dakota determined it is not reasonable to require controls during this planning period. The emissions modeling conducted for the combined western state agencies affected by the Regional Haze Rule was delayed and has subsequently delayed the NDDEQ state implementation plan process. The NDDEQ state implementation plan is open for public comment from April 20, 2022 through June 1, 2022, and, as currently drafted, does not require additional controls for any units in North Dakota, including Coyote Station. Therefore, the NDDEQ's state
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implementation plan, which was due to the EPA by July 2021, is anticipated to be submitted to the EPA in the summer of 2022. Additionally, in September 2021, Otter Tail Power Company filed its 2022 Integrated Resource Plan in Minnesota and North Dakota which included its intent to start the process of withdrawal from its 35 percent ownership interest in Coyote Station with an anticipated exit from the plant by December 31, 2028. The joint owners continue to collaborate in analyzing data and weighing decisions that impact the plant and its employees as well as each company's customers and communities served.
On April 22, 2022 through April 24, 2022, a major snow and ice storm in northwest North Dakota caused widespread power outages and significant damage to the Company's electric transmission and distribution system. The Company is working on repairing the damages. Although total storm costs are not yet finalized, anticipated impacts to the financial statements are not expected to be material.
Legislation and rulemaking The Company continues to monitor legislation and rulemaking related to clean energy standards that may impact its segments. Below are some of the specific legislative actions the Company is monitoring.
The current presidential administration is considering changes to the federal Clean Air Act, some of which were amended by the previous presidential administration. The content and impacts of the changes under consideration are uncertain and the Company continues to monitor for potential actions by the EPA.
In Oregon, the Climate Protection Program Rule was approved in December 2021, which requires natural gas companies to reduce GHG emissions 50 percent below the baseline by 2035 and 90 percent below the baseline by 2050, which may be achieved through surrendering emissions allowances, investing in additional customer conservation and energy efficiency programs, purchasing community climate investment credits, and purchasing low carbon fuels such as renewable natural gas. The Company expects the compliance costs for these regulations to be recovered through customer rates. On September 30, 2022, the Company filed a request for the use of deferred accounting for costs related to the rule and will begin deferring those costs. The Company, along with the other two local natural gas distribution companies in Oregon, filed a lawsuit on March 18, 2022, challenging the Climate Protection Program Rule. The lawsuit was filed on behalf of customers as the Company does not believe the rule accomplishes environmental stewardship in the most effective and affordable way possible.
In Washington, the Climate Commitment Act signed into law in May 2021 requires natural gas distribution companies to reduce overall GHG emissions 45 percent below 1990 levels by 2030, 70 percent below 1990 levels by 2040 and 95 percent below 1990 levels by 2050, which may be achieved through increased energy efficiency and conservation measures, purchased emission allowances and offsets, and purchases of low carbon fuels. As directed by the Climate Commitment Act, in September 2022 the Washington DOE has begunpublished its final rule on the Climate Commitment Program rule-making processProgram. The rule is effective on October 30, 2022, and is expected to publish a final rule in the fall of 2022.emissions compliance begins on January 1, 2023. The Company has begun reviewing compliance options and expects the compliance costs for these regulations will be recovered through customer rates. On October 14, 2022, the Company filed a request for the use of deferred accounting for costs related to the rule and will begin deferring those costs.
On April 22, 2022, the Washington State Building Code Council approved revisions to the state's commercial energy code that will significantly limit the use of natural gas for space and water heating in new and retrofitted commercial and multifamily buildings and proposed the review of similar restrictions in the future for residential buildings. The Company is currently assessing the impact of these revisions.
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The Company has reviewed the income tax provisions of the IRA signed into law in August 2022 and does not expect any material income tax benefits as a result. The Company will continue to explore whether any of the new or renewed energy tax credits will provide a benefit.
Pipeline
Strategy and challenges The pipeline segment provides natural gas transportation, underground storage and energy-related services, as discussed in Note 17. The segment focuses on utilizing its extensive expertise in the design, construction and operation of energy infrastructure and related services to increase market share and profitability through optimization of existing operations, organic growth and investments in energy-related assets within or in close proximity to its current operating areas. The segment focuses on the continual safety and reliability of its systems, which entails building, operating and maintaining safe natural gas pipelines and facilities. The segment continues to evaluate growth opportunities including the expansion of natural gas facilities; incremental pipeline projects; and expansion of energy-related services leveraging on its core competencies. In support of this strategy, the North Bakken Expansion project in western North Dakota was placed in service in February of 2022. The project has capacity to transport 250 MMcf of natural gas per day and can be increased to 625 MMcf per day with additional compression. In addition, the Line Section 7 Expansion project was placed in service in August of 2022 and increased system capacity by 6.7 MMcf per day.
The segment is exposed to energy price volatility which is impacted by the fluctuations in pricing, production and basis differentials of the energy market's commodities. Legislative and regulatory initiatives on increased pipeline safety regulations and environmental matters such as the reduction of methane emissions could also impact the price and demand for natural gas.
The pipeline segment is subject to extensive regulation related to certain operational and environmental compliance, cybersecurity, permit terms and system integrity. The Company continues to actively evaluate cybersecurity processes and procedures, including changes in the industry's cybersecurity regulations, for opportunities to further strengthen its cybersecurity protections. Implementation of enhancements and additional requirements is ongoing. The segment reviews and secures existing permits and easements, as well as new permits and easements as necessary, to meet current demand and future growth opportunities on an ongoing basis. Groups opposing natural gas pipelines could also cause negative impacts on the segment with increased costs, potential delays to project completion or cancellation of prospective projects.
The Company is actively managing the national supply chain challenges and inflationary costs including working with its manufacturers and suppliers to help mitigate some of these risks on its business. The segment regularly experiences extended lead times on raw materials that are critical to the segment's construction and maintenance work. In addition, the segment is currently experiencing increased fuel and raw material costs, as well as other inflationary pressures. Long lead times on materialswork which could delay maintenance work and construction projects potentially causing lost revenues and/or increased costs. Current national supply chain challengesThe segment is also currently experiencing increased fuel and raw material costs, as well as other inflationary costs have not been impactful to the procurement of necessary materials at the pipeline segment, however, the Company is actively monitoring these situations,
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including longer than normal lead times for certain items, and working with its manufacturers and suppliers to help mitigate these risks.pressures. The Company expects supply chain challenges and inflationary pressures to continue throughout the remainder of 2022.2022 and into 2023.
The segment focuses on the recruitment and retention of a skilled workforce to remain competitive and provide services to its customers. The industry in which it operates relies on a skilled workforce to construct energy infrastructure and operate existing infrastructure in a safe manner. A shortage of skilled personnel can create a competitive labor market which could increase costs incurred by the segment. Competition from other pipeline companies can also have a negative impact on the segment.
Earnings overview - The following information summarizes the performance of the pipeline segment.
Three Months EndedThree Months EndedNine Months Ended
March 31,September 30,September 30,
2022 2021 Variance 2022 2021 Variance2022 2021 Variance
(In millions) (In millions)
Operating revenuesOperating revenues$37.1 $36.1 %Operating revenues$39.7 $34.9 14 %$114.3 $106.7 %
Operating expenses:Operating expenses:Operating expenses:
Operation and maintenanceOperation and maintenance15.4 15.1 %Operation and maintenance14.6 14.2 %44.9 45.5 (1)%
Depreciation, depletion and amortizationDepreciation, depletion and amortization6.3 5.2 21 %Depreciation, depletion and amortization6.9 5.2 33 %20.0 15.5 29 %
Taxes, other than incomeTaxes, other than income3.5 3.3 %Taxes, other than income3.2 3.2 — %10.0 9.8 %
Total operating expensesTotal operating expenses25.2 23.6 %Total operating expenses24.7 22.6 %74.9 70.8 %
Operating incomeOperating income11.9 12.5 (5)%Operating income15.0 12.3 22 %39.4 35.9 10 %
Other incomeOther income.1 .9 (89)%Other income.6 2.8 (79)%— 5.6 (100)%
Interest expenseInterest expense2.5 2.0 25 %Interest expense3.0 1.7 76 %8.1 5.6 45 %
Income before income taxesIncome before income taxes9.5 11.4 (17)%Income before income taxes12.6 13.4 (6)%31.3 35.9 (13)%
Income tax expenseIncome tax expense2.2 2.5 (12)%Income tax expense2.8 2.8 — %7.0 7.2 (3)%
Net incomeNet income$7.3 $8.9 (18)%Net income$9.8 $10.6 (7)%$24.3 $28.7 (15)%
Operating statisticsThree Months Ended
March 31,
2022 2021 
Transportation volumes (MMdk)110.5 110.8 
Customer natural gas storage balance (MMdk):
Beginning of period23.0 25.5 
Net withdrawal(20.2)(20.3)
End of period2.8 5.2 
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Operating statisticsThree Months EndedNine Months Ended
September 30,September 30,
2022 2021 2022 2021 
Transportation volumes (MMdk)130.9 122.0 357.1 351.5 
Customer natural gas storage balance (MMdk):
Beginning of period14.8 16.0 23.0 25.5 
Net injections13.3 12.8 5.1 3.3 
End of period28.1 28.8 28.1 28.8 
Three Months Ended March 31,September 30, 2022, Compared to Three Months Ended March 31,September 30, 2021 Pipeline earnings decreased $1.6 million$800,000 as a result of:
Revenues increased $1.0 million.
Driven$4.8 million, primarily driven by increased transportation volume revenues, of $2.7 million, largely due to the demand associated with the North Bakken Expansion project placed in service in February 2022.
Partially offset by lower non-regulated project revenues and lower storage-related revenues.
Operation and maintenance was comparable to the same period in the prior year. Higher payroll-relatedincreased $400,000 primarily from higher contract services costs, softwarenon-regulated project costs and contract services were largelymaterials, partially offset by lower non-regulated project costs.payroll-related costs largely due to lower incentive accruals.
Depreciation, depletion and amortization increased $1.1$1.7 million due to increased property, plant and equipment balances, largely related to the North Bakken Expansion project.
Taxes, other than income were comparable to the same period in the prior year.
Other income decreased $800,000, largely due to$2.2 million, driven primarily by lower returns on certainAFUDC as a result of the Company's benefit plan investments.completion of the North Bakken Expansion project placed in service in February 2022.
Interest expense increased $500,000,$1.3 million, primarily from higher debt balances to fund capital expenditures and lower AFUDC as a result of the completion of the North Bakken Expansion project placed in service in February 2022.
Income tax expense was comparable to the same period in the prior year.
Nine Months EndedSeptember 30, 2022, Compared to Nine Months Ended September 30, 2021 Pipeline earnings decreased $4.4 million as a result of:
Revenues increased $7.6 million.
Driven by increased transportation volume revenues of $11.8 million, largely due to the North Bakken Expansion project placed in service in February 2022.
Partially offset by:
Lower non-regulated project revenues of $2.5 million.
Lower storage-related revenues of $900,000.
Lower transmission rates, due to expired negotiated contracts converted to tariff rate.
Operation and maintenance decreased $600,000.
Primarily due to:
Lower payroll-related costs of $1.7 million, largely related to lower incentive accruals.
Lower non-regulated project costs of $1.5 million directly associated with lower non-regulated project revenues, as previously discussed.
Partially offset by higher contract services, materials and legal costs.
Depreciation, depletion and amortization increased $4.5 million due to increased property, plant and equipment balances, largely related to the North Bakken Expansion project.
Taxes, other than income were comparable to the same period in the prior year.
Other income decreased $5.6 million, resulting from:
Lower AFUDC of $3.7 million as a result of the completion of the North Bakken Expansion project placed in service in February 2022.
Lower returns on the Company's nonqualified benefit plan investments, as discussed in Note 14.
Interest expense increased $2.5 million, primarily due to interest associated with higher debt balances.balances to fund capital expenditures and lower AFUDC as a result of the North Bakken Expansion project placed in service in February 2022.
Income tax expense was comparable to the same period in the prior year.
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Outlook On February 18, 2022, the FERC issued two policy statements regarding the certification of new interstate natural gas facilities. The two policy statements were subsequently converted to draft policy statements by the FERC on March 24, 2022. The first draft policy statement, the Updated Certificate Policy Statement, describes how the FERC will determine whether a new interstate natural gas transportation project is required by public convenience and necessity. It includes increased focus on a project's purpose and need and the environmental impacts; as well as impacts on landowners and environmental justice communities. The FERC also clarified the updated policy statement will not apply to projects that have been filed with the FERC prior to the policy statement being finalized. The second draft policy statement, the Interim GHG Policy Statement, explains how the FERC will assess the impacts of natural gas infrastructure projects on climate change in its reviews under the National Environmental Policy Act and Natural Gas Act. The FERC invited public comment on the draft policy statements which were due April 25, 2022. The Company continues to monitor and assess these initiatives and the potential impacts they may have on its business processes, current and future projects, results of operations and disclosures.
The Company has reviewed the income tax provisions of the IRA signed into law in August 2022 and does not expect any material income tax benefits as a result. The Company has also evaluated the impacts of the methane emissions charge imposed under the IRA legislation and does not expect any material fees given the current GHG reporting thresholds. The Company continues to monitor, evaluate and implement additional GHG emissions reduction strategies, including increased monitoring frequency and emission source control technologies to minimize potential risk.
The Company has continued to experience the effect of associated natural gas production in the Bakken, which has provided opportunities for organic growth projects and increased demand. The completion of organic growth projects has contributed to higher volumes of natural gas the Company transports through its system. Increased oil prices have allowed producers to bring wells back online and support new drilling. As a result, associatedAssociated natural gas production in the Bakken fell during the pandemic delaying previously forecasted production growth. Natural gas production has returnedrebounded to near pre-pandemic levels and isdrilling rig activity continues to increase. The production delay along with long-term contractual commitments on the North Bakken Expansion project placed in service in the first quarter of 2022 has negatively impacted customer renewals of certain contracts. Bakken natural gas production outlook remains positive with continued growth expected to continue to grow due to new oil wells and increasing gas to oil ratios.
The low levels of natural gas in storage nationally, which continue to trend below the five-year average, along with global events, has put upward pressure on natural gas prices and increased volatility. While the Company believes there will continue to be varying pressures on natural gas production levels and prices, the long-term outlook for natural gas prices continues to provide growth opportunity for industrial supply relatedsupply-related projects and seasonal pricing differentials provide opportunities for storage services.
The Company continues to focus on growth and improving existing operations and growth opportunities through organic projects in all areas in which it operates, which includes additional organic growth projects with local distribution companies and industrial customers in various stages of development.
In July 2021, the Company announced plans for a natural gas pipeline expansion project in eastern North Dakota. The Wahpeton Expansion project consists of 60 miles of pipe and ancillary facilities and is designed to increase capacity by 20 MMcf per day, which is supported by long-term customer agreements with Montana-Dakota and its utility customers. Construction is expected to begin in early 2024, depending on regulatory approvals, with an anticipated completion date later in 2024. On May 27, 2022, the Company filed with FERC its application for this project.
On September 22, 2021,19, 2022, the Company filed with the FERC its prior notice application for its 2023 Line Section 27 Expansion project. This project consists of a requestnew compressor station and ancillary facilities and is designed to initiateincrease capacity by 175 MMcf per day, which is supported by a long-term customer agreement. Construction is expected to begin in early 2023, pending regulatory approvals, with an anticipated completion date in late 2023.
In addition to the pre-filing review processWahpeton Expansion and received FERC approval of2023 Line Section 27 Expansion projects, the pre-filing request on September 27, 2021.
The Company has also entered into long-term customer agreements for the construction of fourtwo additional growth projects, three of which are still dependent on regulatory approvals.approvals and anticipated to be completed in 2023. Estimated capital expenditures for these projects is approximately $108$65 million and is included in the pipeline segment's estimated capital expenditures for 2022 and 2023. The projects are anticipated to be completed in 2022 and 2023 and will add total incremental system capacity of over 300119 MMcf per day.
Construction Materials and Contracting
Strategy and challenges The construction materials and contracting segment provides an integrated set of aggregate-based construction services, as discussed in Note 17. The segment focuses on high-growth strategic markets located near major transportation corridors and desirable mid-sized metropolitan areas; strengthening the long-term, strategic aggregate reserve position through available purchase and/or lease opportunities; enhancing profitability through cost containment, margin discipline and vertical integration of the segment's operations; development and recruitment of talented employees; and continued growth through organic and strategic acquisition opportunities.
A key element of the Company's long-term strategy for this business is to further expand its market presence in the higher-margin materials business (rock, sand, gravel, asphalt oil, asphaltready-mix concrete, ready-mixasphalt concrete and related products), complementing and expanding on the segment's expertise. The Company's continued acquisition activity supports this strategy.
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As one of the country's largest sand and gravel producers, the segment continues to strategically manage its aggregate reserves, as well as take further advantage of being vertically integrated. The segment's vertical integration allows it to manage operations from aggregate mining to final lay-down of concrete and asphalt, with control of and access to permitted aggregate reserves being significant. The Company's aggregate reserves are naturally declining and, as a result, the Company seeks acquisition opportunities to replace the reserves.
The construction materialssegment's management continually monitors its operating margins and contracting segment faces challenges thathas been proactive in addressing the inflationary impacts seen across the United States. The Company has increased its product pricing where necessary to mitigate the effects on the segment's gross margin. Due to existing contractual provisions, there can be a lag between the announced price increases and the time when they can be fully recognized. The Company will continue to evaluate future price increases on a regular cadence to keep pace with inflationary pressures as they are not underexpected to continue throughout the direct controlremainder of the business. 2022 and into 2023.
The segment operates in geographically diverse and highly competitive markets. Competitionmarkets that can put negative pressure on the segment's operating margins. The segment issegment's margins can also subject tobe impacted by volatility including recent inflationary pressures, in the cost of raw materials such as diesel fuel, gasoline, asphalt oil, cement and steel.steel, with diesel fuel and asphalt oil costs having the most significant impact on the segment's recent results. Such volatility canand inflationary pressures may continue to have an impact on the segment's margins, including fixed-price construction contracts that are particularly vulnerable to the volatility of energy and material prices. TheWhile the Company has increased product pricing where necessaryexperienced some supply chain constraints, the Company has good relationships with its suppliers and has not experienced significant shortages or delays on materials or experienced any material adverse impacts to mitigate the effectsits results of recent inflationary costs and will continue to evaluate future increases. The Company expects inflationary pressures to continue throughout the remainder of 2022.operations. Other
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variables that can impact the segment's margins include adverse weather conditions, the timing of project starts or completioncompletions and declines or delays in new and existing projects due to the cyclical nature of the construction industry and governmental infrastructure spending. Accordingly, operating results in any particular period may not be indicative of the results that can be expected for any other period.
TheAs a people first company, the segment also faces challenges incontinually takes steps to address the challenge of recruitment and retention of employees. In order to help attract new workers to the construction industry and enhance the skills of its current employees, the Company has completed construction of a corporate-wide state-of-the-art training center located in the Pacific Northwest. The training facility offers hands-on training for heavy equipment operators and truck drivers, as well as leadership and safety training. Trends in the labor market include an aging workforce and availability issues. In 2021issues, and the first quarter of 2022, most of the markets the segment operates in saw an increase inhave experienced labor shortages, largely truck drivers, causing increased labor-related costs and delays or inefficiencies on projects. The new training facility is expected to help address some of these challenges. The Company continues to monitor the labor markets and assess additional opportunities to enhance and support its workforce. Despite these efforts, the Company expects labor costs to continue to increase based on the increased demand for services and, to a lesser extent, the recent escalated inflationary environment in the United States. The increase in labor shortages also impacts the segment's ability to recruit and train a skilled workforce to meet the needs of increasing demand and seasonal work. In order to help attract new workers to the construction industry and enhance the skills of its current employees, the Company has completed a training facility in Oregon. The training facility offers hands-on training for heavy equipment operators and truck drivers, as well as leadership and safety training.
Earnings overview - The following information summarizes the performance of the construction materials and contracting segment.
Three Months EndedThree Months EndedNine Months Ended
March 31,September 30,September 30,
2022 2021 Variance 2022 2021 Variance2022 2021 Variance
(In millions) (In millions)
Operating revenuesOperating revenues$310.0 $265.7 17 %Operating revenues$975.4 $831.3 17 %$1,997.2 $1,730.8 15 %
Cost of sales:Cost of sales:Cost of sales:
Operation and maintenanceOperation and maintenance287.0 243.2 18 %Operation and maintenance758.7 636.3 19 %1,633.9 1,376.5 19 %
Depreciation, depletion and amortizationDepreciation, depletion and amortization27.3 22.3 22 %Depreciation, depletion and amortization29.2 24.5 19 %84.9 71.1 19 %
Taxes, other than incomeTaxes, other than income10.9 9.8 11 %Taxes, other than income15.3 13.9 10 %41.3 37.6 10 %
Total cost of salesTotal cost of sales325.2 275.3 18 %Total cost of sales803.2 674.7 19 %1,760.1 1,485.2 19 %
Gross marginGross margin(15.2)(9.6)(58)%Gross margin172.2 156.6 10 %237.1 245.6 (3)%
Selling, general and administrative expense:Selling, general and administrative expense:Selling, general and administrative expense:
Operation and maintenanceOperation and maintenance25.3 21.7 17 %Operation and maintenance22.9 20.9 10 %71.6 66.8 %
Depreciation, depletion and amortizationDepreciation, depletion and amortization1.1 1.1 — %Depreciation, depletion and amortization1.2 1.0 20 %3.7 3.1 19 %
Taxes, other than incomeTaxes, other than income3.0 2.5 20 %Taxes, other than income.7 1.0 (30)%4.7 4.4 %
Total selling, general and administrative expenseTotal selling, general and administrative expense29.4 25.3 16 %Total selling, general and administrative expense24.8 22.9 %80.0 74.3 %
Operating loss(44.6)(34.9)28 %
Other expense(2.0)(.1)NM
Operating incomeOperating income147.4 133.7 10 %157.1 171.3 (8)%
Other income (expense)Other income (expense)(1.3)(.3)333 %(6.1).8 (863)%
Interest expenseInterest expense5.2 4.7 11 %Interest expense8.8 4.8 83 %21.5 14.4 49 %
Loss before income taxes(51.8)(39.7)30 %
Income tax benefit(11.8)(8.9)33 %
Net loss$(40.0)$(30.8)30 %
Income before income taxesIncome before income taxes137.3 128.6 %129.5 157.7 (18)%
Income tax expenseIncome tax expense34.5 32.3 %34.2 40.8 (16)%
Net incomeNet income$102.8 $96.3 %$95.3 $116.9 (18)%
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*NM - not meaningfulIndex
Operating statisticsOperating statisticsRevenuesGross marginOperating statisticsRevenuesGross margin
Three Months EndedThree Months EndedThree Months EndedNine Months EndedThree Months EndedNine Months Ended
March 31,March 31,September 30,September 30,
2022 2021 2022 2021 2022 2021 2022 2021 2022 2021 2022 2021 
(In millions)(In millions)
AggregatesAggregates$77.6 $70.4 $(2.8)$(2.7)Aggregates$171.8 $144.2 $385.8 $339.7 $34.4 $28.9 $50.2 $43.7 
AsphaltAsphalt18.1 14.3 (6.1)(4.8)Asphalt205.5 153.1 345.2 268.9 28.1 24.7 32.5 33.4 
Ready-mix concreteReady-mix concrete108.5 100.7 5.2 5.7 Ready-mix concrete198.9 182.4 475.5 446.2 29.8 25.1 54.1 50.7 
Other products*Other products*37.5 31.0 (13.7)(11.7)Other products*166.7 138.1 328.5 278.1 44.3 43.3 42.7 55.7 
Contracting servicesContracting services114.3 96.0 2.2 3.9 Contracting services492.2 415.1 937.2 792.0 35.6 34.6 57.6 62.1 
Intracompany eliminationsIntracompany eliminations(46.0)(46.7)— — Intracompany eliminations(259.7)(201.6)(475.0)(394.1)— — — — 
$310.0 $265.7 $(15.2)$(9.6)$975.4 $831.3 $1,997.2 $1,730.8 $172.2 $156.6 $237.1 $245.6 
*Other products includes cement, asphalt oil, merchandise, fabric, spreading and other products that individually are not considered to be a major line of business for the segment.
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Three Months EndedThree Months EndedNine Months Ended
March 31,September 30,
2022 2021 2022 2021 2022 2021 
Sales (thousands):Sales (thousands):Sales (thousands):
Aggregates (tons)Aggregates (tons)4,970 4,808 Aggregates (tons)12,399 11,346 26,890 25,687 
Asphalt (tons)Asphalt (tons)316 294 Asphalt (tons)3,550 3,290 5,967 5,675 
Ready-mix concrete (cubic yards)Ready-mix concrete (cubic yards)734 732 Ready-mix concrete (cubic yards)1,306 1,350 3,179 3,283 
Average sales price:
Average selling price:Average selling price:
Aggregates (per ton)Aggregates (per ton)$15.62 $14.65 Aggregates (per ton)$13.86 $12.71 $14.35 $13.22 
Asphalt (per ton)Asphalt (per ton)$57.21 $48.45 Asphalt (per ton)$57.90 $46.55 $57.85 $47.38 
Ready-mix concrete (per cubic yard)Ready-mix concrete (per cubic yard)$147.89 $137.57 Ready-mix concrete (per cubic yard)$152.34 $135.10 $149.59 $135.93 
Three Months Ended March 31,September 30, 2022, Compared to Three Months Ended March 31,September 30, 2021 Construction materials and contracting's seasonal lossearnings increased $9.2$6.5 million as a result of:
Revenues increased $44.3$144.1 million.
Primarily the result of:
Higher average sale pricesof increased revenues across all product lines.
The Company benefited from higher average selling prices of nearly $100 million across all product lines. Also positively impacting materials revenues were:
Increased aggregates sales volumes due to additional revenue from recent acquisitions, including the benefit of approximately 700,000 tons, and higher volumes in certain markets as a result of higher demand.
Increased asphalt sales volumes, largely from higher demand due to more available public work in Minnesota of 198,000 tons and Montana and Wyoming of 82,000 tons. Also contributing was higher sales volumes due to the recent acquisitions, which contributed an additional 76,000 tons.
Partially offsetting these increases were lower ready-mix sales volumes as a result of lower demand in certain regions.
Increased contracting revenues of $18.3 million due to favorable weather, timing ofmore available work, and strong demand in some regions and revenue from companies acquired since the comparable period last year.recent acquisitions of $15.8 million.
Partially offset by:
Higher ready-mix concrete revenues of $7.8 million due to higher average sale prices, as previously mentioned,An increase in all regions along with higher ready-mix volumesinternal materials sales used in Texas.
Higher aggregate sales volumes due to recent acquisitionsother product lines and average sale prices, as previously mentioned, contributed $5.9 million in Oregon. Also contributing were increased volumes associated with the startup of the Honey Creek quarry in Texas. These increases were partially offset by the absence of a large project in South Dakota.contracting services provided.
Gross margin decreased $5.6 million.
Primarily due to:
Higherincreased $15.6 million, directly resulting from the higher revenues previously discussed, partially offset by higher operating costs across all product lines,the business primarily as a result of inflationary pressures, including diesel fuel costs of $5.0$12.9 million repair and maintenance expenses,higher labor, materials, equipment and labor-relatedproduction costs.
Lower margins in other product lines, primarily due to higher fuel and repair and maintenance costs, as previously discussed.
Lower contracting services margins resulting from mix of work performed. These decreases were partially offset by favorable job performance in northern California.
Lower asphalt margins due to higher materials, repair and maintenance and productions costs, as previously mentioned, of $1.3 million, as well as lower ready-mix concrete margins due to less bad debt recovery.
Selling, general and administrative expense increased $4.1 million.
Largely due to:
Increased$1.9 million as a result of increased payroll-related costs, of $1.7 million.
Increased office expenses of $1.0 million.
Higher professional fees of $900,000.
Less recovery of bad debt expense.partially resulting from inflationary pressures.
Other expense increased $1.9$1.0 million primarily due to lower returns on the Company's nonqualified benefit plan investments.investments, as discussed in Note 14.
Interest expense increased $500,000,$4.0 million, largely the result of higher debt balances, duelargely to fund recent acquisitions.acquisitions and higher working capital needs, and higher average interest rates.
Income tax benefitsexpense increased $2.9$2.2 million, largely due to higher income before income taxes.
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Nine Months Ended September 30, 2022, Compared to Nine Months Ended September 30, 2021 Construction materials and contracting's earnings decreased $21.6 million as a result of:
Revenuesincreased $266.4 million.
Primarily the result of increased revenues across all product lines.
The Company benefited from higher lossaverage selling prices of nearly $175 million across all product lines. Also impacting materials revenues were:
Increased asphalt sales volumes of 294,000 tons from recent acquisitions.
Increased aggregate sales volumes of 1.7 million tons from recent acquisitions. Also contributing was strong market demand in Idaho and Montana.
Increased other revenues from other retail and cement revenues.
Lower ready-mix concrete sales volumes in Oregon, Hawaii and Alaska due to the decreased demand and the absence of certain large projects, and higher delivery costs in South Dakota.
Increased contracting revenue across all regions as a result of more available work and increased pricing related to inflationary costs, as well as revenues from recent acquisitions.
These increases were partially offset by:
An increase in internal materials sales used in other product lines and contracting services provided.
Gross margin decreased $8.5 million.
Primarily the result of higher operating costs across the business primarily as a result of inflationary pressures, including diesel fuel costs of $30.9 million and higher labor, materials, repair and maintenance, equipment, delivery and production costs. In addition, contracting services margins decreased from the mix of work and project delays.
Partially offset by increased margins for aggregates and ready-mix as a result of the increased revenues previously discussed.
Selling, general and administrative expense increased $5.7 million, largely due to:
Increased payroll-related costs of $2.9 million, partially resulting from inflationary pressures.
Higher professional fees of $800,000, partially due to increased audit fees and acquisition-related costs.
Lower recovery of bad debt expense of $800,000.
Higher depreciation and amortization of $600,000, primarily due to the completion of the training center.
Increased technology expenses.
Other income (expense) decreased $6.9 million, mainly due to lower returns on the Company's nonqualified benefit plan investments, as discussed in Note 14.
Interest expense increased $7.1 million, largely the result of higher debt balances to fund recent acquisitions and higher working capital needs.
Income tax expense decreased $6.6 million, largely due to lower income before income taxes.
Outlook In August 2022, the Company announced its intent to separate this segment into a standalone publicly traded company. The separation is expected to result in two independent, publicly traded companies: (1) MDU Resources Group, Inc., the existing company and (2) Knife River, a construction materials and contracting company. The separation is expected to be completed in 2023 and is expected to unlock the inherent value within the two companies, which each have unique growth prospects and investment opportunities.
The American Rescue Plan Act approved by the United States Congress and signed into law by the President of the United Statesenacted in the first quarter of 2021 provides $1.9 trillion in COVID-19 relief funding for states, schools and local governments. States are beginning to move forward with allocating these funds based on federal criteria and state needs, and in some cases, funding of infrastructure projects could positively impact the segment. Additionally, the bipartisan infrastructure proposal, known as the Infrastructure Investment and Jobs Act, was approved by the United States Congress and signed into law by the President of the United Statesenacted in the fourth quarter of 2021. This initiative is providing long-term opportunities by designating $119 billion for the repair and rebuilding of roads and bridges across the Company's footprint. In addition, the IRA provides $369 billion in new funding for clean energy programs. These programs include new tax incentives for solar, battery storage and hydrogen development along with funding to expand the production of electric vehicles and the build out of infrastructure to support electric vehicles. In addition to federal funding, 13 out of the 14 of the states in which the Company operates have implemented their own funding mechanisms for public projects, including projects related to highways, airports and other public infrastructure. The Company continues to monitor the implementation of these legislative items.
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The segment's vertically integrated aggregate-basedaggregates-based business model provides the Company with the ability to capture margin throughout the sales delivery process. The aggregate products are sold internally and externally for use in other products such as ready-mix concrete, asphaltic concrete and public and private construction markets. The contracting services and construction materials are sold in connection with street, highway and other public infrastructure projects, as well as private commercial, industrial and residential development projects. The public infrastructure projects have traditionally been more stable markets as public funding is more secure during periods of economic decline. The public projects are, however, dependent on federal and state funding such as appropriations to the Federal Highway Administration. Spending on private development is highly dependent on both local and national economic cycles, providing additional sales during times of strong economic cycles.cycles and potential for reductions during times of inflation or supply shortages.
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During 2021, the Company made strategic purchases and completed acquisitions that support the Company's long-term strategy to expand its market presence.presence in the higher-margin materials markets. The Company continues to evaluate additional acquisition opportunities. For more information on the Company's business combinations, see Note 10. In 2022, the Company is also upgrading its prestress facility located in Spokane, Washington. The state of the art facility is expected to be in service in December 2022. The facility is expected be a platform for growth through improved productivity and quality, which will help meet strong market demand for prefabricated concrete solutions.
The construction materials and contracting segment's backlog remained strong at March 31,September 30, 2022, at $940.1$895.0 million, as compared to backlog of $818.8$651.7 million at March 31,September 30, 2021. A significant portion of the Company's backlog relates to publicly funded projects, largely street and highway construction.construction projects. Period over period increases or decreases in backlog cannot be used as an indicator of future revenues or net income. TheOf the $895.0 million of backlog at September 30, 2022, the Company expects to complete an estimated $886.5$820.5 million of backlog at March 31, 2022, during the next 12 months. While the Company believes the current backlog of work remains firm, prolonged delays in the receipt of critical supplies and materials or continued increases to pricing could result in customers seeking to delay or terminate existing or pending agreements. Factors noted in Part I, Item 1A. Risk Factors in the 2021 Annual Report can cause revenues to be realized in periods and at levels that are different from originally projected.
The labor contracts that the construction materials and contracting segment was negotiating at December 31, 2021, as reported in Items 1 and 2 - Business Properties - General in the 2021 Annual Report, have been ratified.
Construction Services
Strategy and challenges The construction services segment provides electrical and mechanical and transmission and distribution specialty contracting services, as discussed in Note 17. The construction services segment focuses on safely executing projects; providing a superior return on investment by building new and strengthening existing customer relationships; ensuring quality service; effectively controlling costs; retaining, developing and recruiting talented employees; growing through organic and strategic acquisition opportunities; and focusing efforts on projects that will permit higher margins while properly managing risk. The growth experienced by the segment in recent years is due in part to its ability to support national customers in most of the regions in which it operates.
The construction services segment faces challenges, which are not under direct control of the business, in the highly competitive markets in which it operates. Competitive pricing environments, project delays, changesoperates, including those described in management's estimates of variable considerationPart I, Item 1A. Risk Factors in the 2021 Annual Report. These factors, and the effects from restrictive regulatory requirementsthose noted below, have negatively impactedcaused fluctuations in revenues, gross margins and marginsearnings in the past and could affect revenues and marginsare likely to cause fluctuations in the future. Additionally,
Revenue mix and impact on margins. The mix of revenues based on the types of services the segment provides can impact margins as certain industries and services provide higher margin opportunities. Larger or more complex projects typically result in higher margin opportunities since the segment assumes a higher degree of performance risk and there is greater utilization of the segment's resources for longer construction timelines. However, larger or more complex projects have a higher risk of regulatory and seasonal or cyclical delay. Project schedules fluctuate, which can affect the amount of work performed in a given period. Smaller or less complex projects typically have a greater number of companies competing for them, and competitors at times may be more aggressive when pursuing available work. A greater percentage of smaller scale or less complex work in a given period could negatively impactedimpact margins due to the inefficiency of transitioning between a greater number of smaller projects versus continuous production on a quarterly basisfew larger projects.
Project variability and performance. Margins for a single project may fluctuate period to period due to adversechanges in the volume or type of work performed, the pricing structure under the project contract or job productivity. Productivity and performance on a project can vary period to period based on a number of factors, including unexpected project difficulties; unexpected project site conditions; project location, including locations with challenging operating conditions or difficult geographic characteristics; whether the work is on an open or encumbered right of way; inclement weather conditions, as well as timingor severe weather events; environmental restrictions or regulatory delays; political or legal challenges related to a project; and the performance of third parties. In addition, the type of contract can impact the margin on a project. Under fixed-price contracts, which are more common with larger or more complex projects, the segment assumes risk related to project starts or completions; disruptions to the supply chain; declines or delays in newestimates versus execution. Revenues under this type of contract can vary, sometimes significantly, from original projects due to the cyclical nature of the construction industry; inflationary pressures;additional project complexity; timing uncertainty or extended bidding; extended regulatory or permitting processes; and other factors.factors, which can result in a reduction in profit or losses on a project.
Subcontractor work and provision of materials. Some work under project contracts is subcontracted out to other companies and margins on subcontractor work is generally lower than work performed by the Company. Increased subcontractor work in a given period may therefore result in lower margins. In addition, inflationary or other pressures may increase the cost of materials under fixed-price contracts and may result in decreased margins on the project. The Company has worked to implement provisions in project contracts to allow for the pass-through of inflationary costs to customers where feasible and will continue to do so to mitigate the impacts.
The segment's management continually monitors its operating margins and has been proactive in addressing the inflationary impacts seen across the United States. The segment is currently experiencing increased fuel and material costs as well as impacts from delays in the national supply chain. The segment is working with suppliers and providers of goods and services in advance of
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construction to secure pricing and reduce delays for goods and services. The inflationary costs and national supply chain challenges experienced by the segment have increased costs but have not had significant impacts to the procurement of project materials or project margins. However, thematerials. The Company expects these inflationary pressures and national supply chain challenges to continue throughout the remainder of 2022. The Company is actively monitoring these situations2022 and working with its manufacturers, suppliers and customers to help mitigate these risks. These challenges may also impact the risk of loss on certain projects.into 2023. Accordingly, operating results in any particular period may not be indicative of the results that can be expected for any other period.
The need to ensure available specialized labor resources for projects also drives strategic relationships with customers and project margins. These trends include an aging workforce and labor availability issues, as well as increasing duration and complexity of customer capital programs. In 2021 and the first quarterMost of 2022, the markets the segment operates in saw an increase inhave experienced labor shortages which in some cases have caused increased labor-related costs. The Company continues to monitor the labor markets and expects labor costs to continue to increase based on the increased demand for servicesincreases included in collective bargaining agreements and, to a lesser extent, the recent escalated inflationary environment in the United States. Due to these and other factors, the Company believes overall customer and competitor demand for labor resources will continue to increase, possibly surpassing the supply of industry resources.
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increase.
Earnings overview - The following information summarizes the performance of the construction services segment.
Three Months EndedThree Months EndedNine Months Ended
March 31,September 30,September 30,
2022 2021 Variance 2022 2021 Variance2022 2021 Variance
(In millions) (In millions)
Operating revenuesOperating revenues$552.6 $518.5 %Operating revenues$737.0 $514.8 43 %$1,975.1 $1,558.9 27 %
Cost of sales:Cost of sales:Cost of sales:
Operation and maintenanceOperation and maintenance471.1 427.2 10 %Operation and maintenance651.8 441.5 48 %1,708.0 1,310.7 30 %
Depreciation, depletion and amortizationDepreciation, depletion and amortization4.1 4.0 %Depreciation, depletion and amortization4.3 3.9 10 %12.6 11.8 %
Taxes, other than incomeTaxes, other than income19.0 19.4 (2)%Taxes, other than income20.2 14.2 42 %60.5 49.9 21 %
Total cost of salesTotal cost of sales494.2 450.6 10 %Total cost of sales676.3 459.6 47 %1,781.1 1,372.4 30 %
Gross marginGross margin58.4 67.9 (14)%Gross margin60.7 55.2 10 %194.0 186.5 %
Selling, general and administrative expense:Selling, general and administrative expense:Selling, general and administrative expense:
Operation and maintenanceOperation and maintenance26.0 24.6 %Operation and maintenance23.5 23.0 %76.1 71.2 %
Depreciation, depletion and amortizationDepreciation, depletion and amortization1.1 1.3 (15)%Depreciation, depletion and amortization1.2 1.0 20 %3.3 3.4 (3)%
Taxes, other than incomeTaxes, other than income1.8 1.7 %Taxes, other than income1.1 1.1 — %4.0 3.7 %
Total selling, general and administrative expenseTotal selling, general and administrative expense28.9 27.6 %Total selling, general and administrative expense25.8 25.1 %83.4 78.3 %
Operating incomeOperating income29.5 40.3 (27)%Operating income34.9 30.1 16 %110.6 108.2 %
Other incomeOther income.1 .2 (50)%Other income3.5 .9 289 %4.6 2.6 77 %
Interest expenseInterest expense.9 .9 — %Interest expense1.7 .9 89 %3.8 2.6 46 %
Income before income taxesIncome before income taxes28.7 39.6 (28)%Income before income taxes36.7 30.1 22 %111.4 108.2 %
Income tax expenseIncome tax expense7.4 9.8 (24)%Income tax expense8.7 7.0 24 %27.6 26.4 %
Net incomeNet income$21.3 $29.8 (29)%Net income$28.0 $23.1 21 %$83.8 $81.8 %
Operating StatisticsOperating StatisticsRevenuesGross marginOperating StatisticsRevenuesGross Margin
Three Months EndedThree Months EndedThree Months EndedNine Months EndedThree Months EndedNine Months Ended
March 31,March 31,September 30,September 30,
Business Line2022 2021 2022 2021 
2022 2021 2022 2021 2022 2021 2022 2021 
(In millions)(In millions)
Electrical & mechanicalElectrical & mechanicalElectrical & mechanical
CommercialCommercial$188.1 $166.1 $20.3 $17.5 Commercial$276.6 $143.2 $706.6 $457.0 $21.8 $20.8 $67.2 $56.7 
IndustrialIndustrial95.0 126.4 9.8 17.2 Industrial132.3 99.8 339.4 350.2 11.3 7.5 33.4 37.3 
InstitutionalInstitutional40.7 32.1 .6 2.2 Institutional58.9 36.3 155.0 108.2 1.0 (1.4)2.3 2.0 
RenewablesRenewables24.9 .6 1.0 .3 Renewables43.4 2.1 122.8 4.7 (3.9).2 .1 .6 
Service & otherService & other46.5 31.2 5.7 5.0 Service & other35.3 38.2 127.0 106.2 3.7 3.8 14.8 13.7 
395.2 356.4 37.4 42.2 546.5 319.6 1,450.8 1,026.3 33.9 30.9 117.8 110.3 
Transmission & distributionTransmission & distributionTransmission & distribution
UtilityUtility143.0 141.3 19.9 23.8 Utility179.6 168.6 477.5 465.6 25.8 20.8 72.2 68.5 
TransportationTransportation17.9 24.1 1.1 1.9 Transportation16.1 30.0 59.5 78.2 1.0 3.5 4.0 7.7 
160.9 165.4 21.0 25.7 195.7 198.6 537.0 543.8 26.8 24.3 76.2 76.2 
Intrasegment eliminationsIntrasegment eliminations(3.5)(3.3)— — Intrasegment eliminations(5.2)(3.4)(12.7)(11.2)— — — — 
$552.6 $518.5 $58.4 $67.9 $737.0 $514.8 $1,975.1 $1,558.9 $60.7 $55.2 $194.0 $186.5 
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Three Months Ended March 31,September 30, 2022, Compared to Three Months Ended March 31,September 30, 2021 Construction services earnings decreased $8.5increased $4.9 million as a result of:
Revenues increased $34.1$222.2 million.
Largely due to higher electrical and mechanical workloads as a result of:
Higher commercial workloads driven largely by a $97.5 million increase in the hospitality sector, primarily from the progress on large projects; a $30.0 million increase in data center work from the number of and progress on projects started during the quarter; and an increase in the general commercial sector.
Higher renewable workloads of $41.3 million due to the timing of and progress on commercial renewable projects.
Higher industrial workloads in the high-tech sector of $22.1 million, the general industrial sector of $14.8 million and the maintenance sector of $14.7 million, all of which benefited from the mix of project work; partially offset by lower refinery workloads.
Higher institutional workloads, primarily in the healthcare sector of $11.2 million, the education sector of $8.4 million and the government sector, all of which benefited from the mix of project work in the quarter.
Also contributing were higher utility workloads as a result of increases in the electrical sector of $14.1 million, the underground sector of $11.9 million, the substation sector of $5.6 million and the distribution sector, all of which benefited from the project timing. These were offset by lower transportation workloads for street lighting also due to project timing.
Gross margin increased $5.5 million.
Largely due to:
Higher margins on electrical and mechanical work in the industrial, institutional and commercial sectors due to project mix, as well as gains associated with completed commercial jobs.
Higher utility margins of $7.8 million resulting from the mix of customer projects, partially offset by lower storm margins.
Partially offset by:
Higher overall operating costs related to inflationary pressures, including increased fuel and material costs and higher labor costs from decreased efficiencies on certain projects.
Lower margins on renewable work, partly due to revisions in estimates on a project due to delays and labor impacts.
Lower transportation margins, primarily for street lighting and electrical sectors due to customer demand.
Selling, general and administrative expense increased $700,000.
Primarily due to:
Increased reserve for uncollectible accounts of $600,000.
Increased office expenses of $400,000
Partially offset by decreased payroll-related costs, primarily due to lower incentive accruals.
Other income increased $2.6 million, primarily related to the Company's joint ventures.
Interest expense increased $800,000 due to higher working capital needs.
Income tax expense increased $1.7 million primarily resulting from an increase in income before income taxes.
Nine Months Ended September 30, 2022, Compared to Nine Months Ended September 30, 2021 Construction services earnings increased $2.0 million as a result of:
Revenues increased $416.2 million.
Largely due to higher electrical and mechanical workloads as a result of:
Higher commercial workloads driven largely by a $127.5 million increase in the hospitality sector as a result of progress on large projects; a $58.3 million increase in the data center sector from the number of and progress on projects; and an increase in general commercial workloads as a result of project mix and the progress on contracts.
Higher renewable workloads due to the timing of and progress on commercial renewable projects.
Higher institutional workloads, with the education sector contributing an additional $21.0 million, the healthcare sector contributing an additional $18.4 million, and the government sector contributing $4.9 million, all of which were the result of increased activity from project mix and progress on projects.
Higher service workloads due to the demand for the repair and maintenance of electrical and mechanical systems.
Also contributing were higher utility workloads, primarily from an increase in the electrical sector of $32.6 million, the underground sector of $17.3 million, the distribution and substation sectors of $16.1 million and the telecommunications sector of $5.6 million, all of which benefited from increased customer released projects, partially offset by lower transmission and storm work from decreased customer demand.
Partially offset by:
Lower transportation workloads, primarily in the street lighting sector of $25.3 million due to lower demand, partially offset by higher traffic signalization and government workloads.
Lower industrial workloads, primarily in the high-tech sector of $26.5 million, largely due to the completion of a large high-tech project as well as the timing of other projects, and the maintenance sector of $8.4 million related to the timing of projects. Partially offsetting these decreases was an increase in general industrial sector from project mix and timing.
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Gross margin increased $7.5 million.
Largely due to:
Higher commercial workloads of $29.0 million, partially offset by a decrease inand service margins primarily the hospitality sector from the timingresult of project completions.
Higher renewable workloads, largely from commercial customers, of $24.3 million due to newmix and progression on projects.
Higher utility workloads, primarily in the distribution and electrical sectors of $16.0 million.
Increased service work for the repair and maintenance of electric systems and higher institutional project demand in the education and government sectorsmargins from the mix of project work.utility projects, offset in part by lower storm margins.
Partially offset by:
DecreasedHigher overall operating costs related to inflationary pressures, including increased fuel and material costs and higher labor costs from decreased efficiencies on certain projects.
Lower industrial workloads, primarily in the high-tech sectormargins of $37.5$3.9 million resulting from the absence of a significant project completed in the prior year.
Decreased storm-repair and fire-hardening power line work of $15.0 million.
Lower electric transportation workloads, mostly traffic signalization and street lighting projects and work for governmental customers, as a result of reduced demand for services and prior year weather events.
Gross margin decreased $9.5 million.
Largely due to:
The absence ofcertain higher margin work due toin 2021, as well as the timing of project completions and project starts mainly contributed to lower industrial and institutional margins of $9.0 million.starts.
Lower utility margins from the absence in 2022 of storm-repair and fire-hardening power line work of $3.9 million, which largely resulted from the mix of customer projects.
Decreased transportation margins primarily on street lighting and traffic signalization projects.
Partially offset by increased commercial, renewableRenewable project margin was negatively impacted from revisions in estimates on a project due to delays and service margins of $4.2 million due substantially to the different project mix.labor impacts.
Selling, general and administrative expense increased $1.3$5.1 million.
Primarily due to:
Increased reserve for uncollectible accounts of $1.1$2.6 million.
Increased office expenses of $1.1 million.$1.3 million from an increase in facility costs.
Partially offset by decreasedIncreased payroll-related costs of $600,000 and lower professional fees.$1.2 million, largely related to higher employee incentive accruals from the higher number of employees.
Other income was comparableincreased $2.0 million, primarily related to the same period in the prior year.Company's joint ventures.
Interest expense was comparableincreased $1.2 million due to the same period in the prior year.higher working capital needs.
Income tax expense decreased $2.4increased $1.2 million directly resulting from a decreasean increase in income before income taxes.
Outlook The American Rescue Plan act approved by the United States Congress and signed into law by the President of the United States in the first quarter of 2021 provides $1.9 trillion in COVID-19 relief funding for states, schools and local government including broadband infrastructure. States are beginning to move forward with allocating these funds based on federal criteria and state needs, and in some cases, funding of infrastructure projects could positively impact the segment. Additionally, the bipartisan infrastructure proposal, known as the Infrastructure Investment and Jobs Act, was approved by the United States Congress and signed into law by the President of the United Statesenacted in the fourth quarter of 2021. These include investments for upgrades to electric and grid infrastructure, transportation systems, airports and electric vehicle infrastructure, all industries this segment supports. In addition, the IRA provides $369 billion in new funding for clean energy programs. These programs include new tax incentives for solar, battery storage and hydrogen development along with funding to expand the production of electric vehicles and the build out of infrastructure to support electric vehicles. The Company will continue to monitor the implementation of these legislative items.
The Company continues to have bidding opportunities in boththe specialty contracting markets in which it operated in during 2022 as evidenced by the segment's backlog. Although bidding remains highly competitive in all areas, the Company expects the segment's relationship with existing customers, skilled workforce, quality of service and effective cost management will continue to provide a benefit in securing and executing profitable projects in the future. The Company has also seen rapidly growing needs for services across the electric vehicle charging, wind generation and energy storage markets that complement existing renewable projects performed by the Company.
The construction services segment's backlog at March 31,September 30, was as follows:
20222021
(In millions)
Electrical & mechanical$1,388 $1,009 
Transmission & distribution280264
$1,668 $1,273 
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20222021
(In millions)
Electrical & mechanical$1,724 $1,041 
Transmission & distribution278232
$2,002 $1,273 
The 3157 percent increase in backlog at March 31,September 30, 2022, as compared to backlog at March 31,September 30, 2021, was largely attributable to the new project opportunities that the Company continues to be awarded across its diverse operations, particularly within the commercial, institutional, renewableutility and power utilityindustrial markets. These increases were partially offset by decreases in the industrial and transportation marketsmarket due to the timing of project completions. Period over period increases or decreases in backlog cannot be used as an indicator of future revenues or net income. TheOf the $2.0 billion of backlog at September 30, 2022, the Company expects to complete an estimated $1.4$1.67 billion of backlog at March 31, 2022, during the next 12 months. While the Company believes the current backlog of work remains firm, prolonged delays in the receipt of critical supplies and materials could result in customers seeking to delay or terminate existing or pending agreements. As of September 30, 2022, customers have not provided the Company any indications that they no longer wish to proceed with planned projects that have been included in backlog. Additionally, the Company continues to further evaluate potential acquisition opportunities that would be accretive to earnings of the Company and continue to grow the segment's backlog. Factors noted in Part I, Item 1A. Risk Factors in the 2021 Annual Report can cause revenues to be realized in periods and at levels that are different from originally projected.
The labor contract that the construction services segment was negotiating at December 31, 2021, as reported in Items 1 and 2 - Business Properties - General in the 2021 Annual Report, has been ratified.
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Other
Three Months Ended
March 31,
 2022 2021 Variance
(In millions)
Operating revenues$4.3 $3.3 30 %
Operating expenses:
Operation and maintenance4.0 2.3 74 %
Depreciation, depletion and amortization1.1 1.2 (8)%
Total operating expenses5.1 3.5 46 %
Operating loss(.8)(.2)NM
Other income.1 .1 — %
Interest expense.1 .1 — %
Loss before income taxes(.8)(.2)NM
Income tax expense3.7 2.5 48 %
Net loss$(4.5)$(2.7)67 %
*NM - not meaningful
Three Months EndedNine Months Ended
September 30,September 30,
 2022 2021 Variance2022 2021 Variance
(In millions)
Operating revenues$4.4 $3.4 29 %$13.2 $10.1 31 %
Operating expenses:
Operation and maintenance4.5 2.3 96 %11.9 6.9 72 %
Depreciation, depletion and amortization1.1 1.1 — %3.3 3.5 (6)%
Total operating expenses5.6 3.4 65 %15.2 10.4 46 %
Operating loss(1.2)— — %(2.0)(.3)567 %
Other income.3 — — %.4 .5 (20)%
Interest expense.4 .1 300 %.8 .2 300 %
Loss before income taxes(1.3)(.1)1200 %(2.4)— — %
Income tax benefit(5.1)(3.9)31 %(1.0)(2.2)(55)%
Net income (loss)$3.8 $3.8 — %$(1.4)$2.2 (163)%
Three Months Ended March 31,September 30, 2022, Compared to Three Months Ended March 31,September 30, 2021
Other experienced higher operation and maintenance expense in 2022was positively impacted by income tax adjustments related to the consolidated company's annualized estimated tax rate. Operating expenses were positively impacted from a loss onreduction in estimated losses recorded at the disposal of assets. Premiumscaptive insurer. In addition, higher premiums for the captive insurer were higherexperienced in 2022 compared to 2021, which impacts both operation and maintenance expense and operating revenues. The net loss forAlso included in Other also reflects income tax adjustments related to the consolidated company's annualized estimated tax rate. Generalare general and administrative costs and interest expense previously allocated to the exploration and production and refining businesses that do not meet the criteria for income (loss) from discontinued operations, are alsoas well as transaction costs associated with the anticipated spinoff of Knife River.
Nine Months Ended September 30, 2022, Compared to Nine Months Ended September 30, 2021
Other was negatively impacted by income tax adjustments related to the consolidated company's annualized estimated tax rate. Operating expenses were positively impacted from a reduction in estimated losses recorded at the captive insurer, partially offset by a loss on the disposal of assets recorded in operation and maintenance expense. In addition, higher premiums for the captive insurer were experienced in 2022 compared to 2021, which impacts both operation and maintenance expense and operating revenues. Also included in Other.Other are general and administrative costs and interest expense previously allocated to the exploration and production and refining businesses that do not meet the criteria for income (loss) from discontinued operations, as well as transaction costs associated with the anticipated spinoff of Knife River.
Intersegment Transactions
Amounts presented in the preceding tables will not agree with the Consolidated Statements of Income due to the Company's elimination of intersegment transactions. The amounts related to these items were as follows:
Three Months EndedThree Months EndedNine Months Ended
March 31,September 30,
2022 2021  2022 2021 2022 2021 
(In millions) (In millions)
Intersegment transactions:Intersegment transactions:Intersegment transactions: 
Operating revenuesOperating revenues$31.7 $30.9 Operating revenues$10.8 $8.0 $57.0 $51.4 
Operation and maintenanceOperation and maintenance5.8 4.9 Operation and maintenance7.3 4.2 20.2 14.0 
Purchased natural gas soldPurchased natural gas sold25.9 26.0 Purchased natural gas sold3.5 3.8 36.8 37.4 
For more information on intersegment eliminations, see Note 17.
Liquidity and Capital Commitments
At March 31,September 30, 2022, the Company had cash and cash equivalents of $64.9$74.6 million and available borrowing capacity of $523.5$371.6 million under the outstanding credit facilities of the Company's subsidiaries. The Company expects to meet its obligations for debt maturing within one year and its other operating and capital requirements from various sources, including internally generated funds; credit facilities and commercial paper of the Company's subsidiaries, as described in Capital resources; and issuance of debt and equity securities if necessary.
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Cash flows
Three Months EndedNine Months Ended
March 31,September 30,
2022 2021  2022 2021 
(In millions)(In millions)
Net cash provided by (used in):Net cash provided by (used in):Net cash provided by (used in):
Operating activitiesOperating activities$112.4 $95.6 Operating activities$284.9 $365.8 
Investing activitiesInvesting activities(150.7)(106.3)Investing activities(465.4)(432.6)
Financing activitiesFinancing activities49.0 6.2 Financing activities200.9 64.5 
Increase (decrease) in cash and cash equivalentsIncrease (decrease) in cash and cash equivalents10.7 (4.5)Increase (decrease) in cash and cash equivalents20.4 (2.3)
Cash and cash equivalents -- beginning of yearCash and cash equivalents -- beginning of year54.2 59.6 Cash and cash equivalents -- beginning of year54.2 59.6 
Cash and cash equivalents -- end of periodCash and cash equivalents -- end of period$64.9 $55.1 Cash and cash equivalents -- end of period$74.6 $57.3 
Operating activities 
Three Months EndedNine Months Ended
March 31,September 30,
2022 2021 Variance 2022 2021 Variance
(In millions)(In millions)
Components of net cash provided by operating activities:Components of net cash provided by operating activities:Components of net cash provided by operating activities:
Income from continuing operationsIncome from continuing operations$31.7 $52.1 $(20.4)Income from continuing operations$250.3 $291.3 $(41.0)
Adjustments to reconcile net income to net cash provided by operating activitiesAdjustments to reconcile net income to net cash provided by operating activities78.9 82.5 (3.6)Adjustments to reconcile net income to net cash provided by operating activities279.3 246.1 33.2 
Changes in current assets and liabilities, net of acquisitions:Changes in current assets and liabilities, net of acquisitions:
ReceivablesReceivables(5.7)89.7 (95.4)Receivables(346.9)(103.6)(243.3)
InventoriesInventories(44.1)(25.6)(18.5)Inventories(60.7)(21.4)(39.3)
Other current assetsOther current assets34.5 (46.8)81.3 Other current assets(31.4)(74.4)43.0 
Accounts payableAccounts payable3.0 (42.0)45.0 Accounts payable148.4 33.1 115.3 
Other current liabilitiesOther current liabilities13.1 (14.0)27.1 Other current liabilities62.1 14.2 47.9 
Pension & postretirement benefit plan contributions(.1)(.1)— 
Pension and postretirement benefit plan contributionsPension and postretirement benefit plan contributions(.4)(.3)(.1)
Other noncurrent changesOther noncurrent changes1.1 (.2)1.3 Other noncurrent changes(15.8)(19.1)3.3 
Net cash used in discontinued operationsNet cash used in discontinued operations— (.1).1 
Net cash provided by operating activitiesNet cash provided by operating activities$112.4 $95.6 $16.8 Net cash provided by operating activities$284.9 $365.8 $(80.9)
The changes in cash flows from operating activities generally follow the results of operations, as discussed in Business Segment Financial and Operating Data, and are affected by changes in working capital. The increasedecrease in cash flows provided by operating activities in the previous table was largely driven by the recovery of purchased gas adjustment balances and the absence of higher natural gas purchases in February 2021, as discussed in Note 13, partially offset by the associated deferred taxes. Partially offsetting the net increase in cash flows provided by operating activities was higher working capital needs at the construction services businessand construction materials and contracting businesses due to fluctuations in job activity resulting in higher receivables in the period, as well as lower collections of accounts receivable compared to first quarternine months of 2021 offset in part by increased accounts payable. In addition,Also contributing to the construction materialsdecrease were increased inventories related to higher gas costs at the natural gas distribution business and contracting business experienced an increaselower earnings across most of the Company's businesses. Partially offsetting the net decrease in asphalt oil inventorycash flows provided by operating activities was the recovery of purchased gas adjustment balances as a resultand the absence of higher prices.natural gas purchases in February 2021, as discussed in Note 13. Other current assets and liabilities were also impacted by the Company's net tax position.
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Index
Investing activities
Three Months EndedNine Months Ended
March 31,September 30,
2022 2021 Variance 2022 2021 Variance
(In millions)(In millions)
Components of net cash used in investing activities:Components of net cash used in investing activities:Components of net cash used in investing activities:
Capital expendituresCapital expenditures$(150.3)$(111.1)$(39.2)Capital expenditures$(463.0)$(428.1)$(34.9)
Acquisitions, net of cash acquiredAcquisitions, net of cash acquired(.5)(1.0).5 Acquisitions, net of cash acquired.4 (13.7)14.1 
Net proceeds from sale or disposition of property and otherNet proceeds from sale or disposition of property and other4.5 9.0 (4.5)Net proceeds from sale or disposition of property and other1.6 13.0 (11.4)
InvestmentsInvestments(4.4)(3.2)(1.2)Investments(4.4)(3.8)(.6)
Net cash used in investing activitiesNet cash used in investing activities$(150.7)$(106.3)$(44.4)Net cash used in investing activities$(465.4)$(432.6)$(32.8)
The increase in cash used in investing activities in the previous table was primarily due to increased capital expenditures in 2022 at the electric and natural gas distribution businesses related to increased electric production projects, including the construction of Heskett Unit 4 and distribution projects andthe repower of Diamond Willow at the electric business; higher natural gas distribution projects, including natural gas mains and meters at the natural gas distribution business; and mains.the construction of a new building at the construction services business. The construction services and electric businesses also experienced lower proceeds from asset sales in 2022 related to the sale of a building and decommissioning activities related to plant closures, respectively. Offsetting the increased cash used in investing activities was decreased capital expenditures at the pipeline business also experienced increased capital expenditures, primarily related toas a result of the North Bakken Expansion project.
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Index
project being placed in service in February 2022 and lower cash used for acquisition activity at the construction materials and contracting business.
Financing activities
Three Months EndedNine Months Ended
March 31,September 30,
2022 2021 Variance 2022 2021 Variance
(In millions)(In millions)
Components of net cash provided by financing activities:Components of net cash provided by financing activities:Components of net cash provided by financing activities:
Issuance of short-term borrowingsIssuance of short-term borrowings$100.0 $50.0 $50.0 Issuance of short-term borrowings$100.0 $50.0 $50.0 
Repayment of short-term borrowingsRepayment of short-term borrowings— (50.0)50.0 Repayment of short-term borrowings— (50.0)50.0 
Issuance of long-term debtIssuance of long-term debt150.0 93.3 56.7 Issuance of long-term debt270.3 178.9 91.4 
Repayment of long-term debtRepayment of long-term debt(143.6)(53.3)(90.3)Repayment of long-term debt(23.1)(63.8)40.7 
Debt issuance costsDebt issuance costs(.7)— (.7)Debt issuance costs(1.1)(.4)(.7)
Net proceeds from issuance of common stockNet proceeds from issuance of common stock(.1)19.7 (19.8)Net proceeds from issuance of common stock(.1)88.8 (88.9)
Dividends paidDividends paid(44.2)(42.6)(1.6)Dividends paid(132.7)(128.1)(4.6)
Repurchase of common stockRepurchase of common stock(7.4)(6.7)(.7)Repurchase of common stock(7.4)(6.7)(.7)
Tax withholding on stock-based compensationTax withholding on stock-based compensation(5.0)(4.2)(.8)Tax withholding on stock-based compensation(5.0)(4.2)(.8)
Net cash provided by financing activitiesNet cash provided by financing activities$49.0 $6.2 $42.8 Net cash provided by financing activities$200.9 $64.5 $136.4 
The increase in cash provided by financing activities in the previous table was largely the result of increased issuance of short-term and long-term debt at the construction services and construction materials and contracting businessbusinesses to finance acquisitions andfund higher working capital needs and at the electric and natural gas distribution business to fund capital expenditures and higher natural gas costs. The issuances were partially offset by the repayment of commercial paper borrowings that were replaced by short-term debt and private placement borrowings. In addition, the pipeline and construction services businesses experienced increased commercial paper borrowings to finance increased capital expenditures and higher working capital needs, respectively. PartiallyAlso partially offsetting the increase in cash provided by financing activities was the absence of the issuance of common stock under the Company's "at-the-market" offering during 2022, as discussed in Note 7.
Defined benefit pension plans
The Company has noncontributory qualified defined benefit pension plans. Various assumptions are used in calculating the benefit expense (income) and liability (asset) related to these plans, as such costs of providing these benefits bear the risk of changes as they are dependent upon assumptions of future conditions.
For 2022, the Company assumed a long-term rate of return on its qualified defined pension plan assets of 6 percent. Through September 30, 2022, due to the decline in the equity and fixed-income markets, the Company experienced a 25 percent loss on its qualified defined pension plan assets. Differences between actuarial assumptions and actual plan results are deferred and amortized into expense when the accumulated differences exceed 10 percent of the greater of the projected benefit obligation or the market-related value of plan assets. Therefore, this change in asset values will be reflected in future expenses of the plans, beginning in 2023.
There were no other material changes to the Company's qualified noncontributory defined benefit pension plans from those reported in the 2021 Annual Report. For more information, see Note 18 and Part II, Item 7 in the 2021 Annual Report.
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Capital expenditures
Capital expenditures for the first threenine months of 2022 and 2021 were $119.8$451.1 million and $107.2$507.9 million, respectively. Capital expenditures allocated to the Company's business segments are estimated to be approximately $769.9$702 million for 2022. Capital expenditures have been updated from what was previously reported in the 2021 Annual Report to accommodate project timeline and scope changes made throughout the first quarterthree quarters of 2022.
The Company has included in the estimated capital expenditures for 2022 the Wahpeton Expansion and additionalmultiple organic growth projects at the pipeline segmentbusiness and construction of Heskett Unit 4 at the natural gas distribution segment,electric business, as previously discussed in Business Segment Financial and Operating Data, as well as system upgrades; routine replacements; service extensions; routine equipment maintenance and replacements; buildings, land and building improvements; pipeline and natural gas storage projects; power generation and transmission opportunities, environmental upgrades; and other growth opportunities.
The Company continues to evaluate potential future acquisitions and other growth opportunities that would be incremental to the outlined capital program; however, they are dependent upon the availability of economic opportunities and, as a result, capital expenditures may vary significantly from the estimate previously discussed. The Company continuously monitors its capital expenditures for project delays and changes in economic viability and adjusts as necessary. It is anticipated that all of the funds required for capital expenditures for 2022 will be funded by various sources, including internally generated funds; credit facilities and commercial paper of the Company's subsidiaries, as described later; and issuance of debt and equity securities if necessary.
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Capital resources
The Company requires significant cash to support and grow its businesses. The primary sources of cash other than cash generated from operating activities are cash from revolving credit facilities, cash from the issuance of long-term debt and cash from the sale of equity securities.
Debt resources
Certain debt instruments of the Company's subsidiaries contain restrictive and financial covenants and cross-default provisions. In order to borrow under the respective debt instruments, the subsidiary companies must be in compliance with the applicable covenants and certain other conditions, all of which the subsidiaries, as applicable, were in compliance with at March 31,September 30, 2022. In the event the subsidiaries do not comply with the applicable covenants and other conditions, alternative sources of funding may need to be pursued. For more information on the covenants, certain other conditions and cross-default provisions, see Part II, Item 8 in the 2021 Annual Report.
The following table summarizes the outstanding revolving credit facilities of the Company's subsidiaries at March 31,September 30, 2022:
CompanyCompanyFacility Facility
Limit
 Amount
Outstanding
 Letters
of Credit
 Expiration
Date
CompanyFacility Facility
Limit
 Amount
Outstanding
 Letters
of Credit
 Expiration
Date
(In millions)(In millions)
Montana-Dakota Utilities Co.Montana-Dakota Utilities Co.Commercial paper/Revolving credit agreement(a)$175.0  $29.4 $—  12/19/24Montana-Dakota Utilities Co.Commercial paper/Revolving credit agreement(a)$175.0  $86.7 $—  12/19/24
Cascade Natural Gas CorporationCascade Natural Gas CorporationRevolving credit agreement $100.0 (b)$49.9  $2.2 (c)6/7/24Cascade Natural Gas CorporationRevolving credit agreement $100.0 (b)$60.6  $2.2 (c)6/7/24
Intermountain Gas CompanyIntermountain Gas CompanyRevolving credit agreement $85.0 (d)$35.9  $— 6/7/24Intermountain Gas CompanyRevolving credit agreement $85.0 (d)$65.0  $— 6/7/24
Centennial Energy Holdings, Inc.Centennial Energy Holdings, Inc.Commercial paper/Revolving credit agreement(e)$600.0  $319.1 $— 12/19/24Centennial Energy Holdings, Inc.Commercial paper/Revolving credit agreement(e)$600.0  $373.9 $— 12/19/24
(a)The commercial paper program is supported by a revolving credit agreement with various banks (provisions allow for increased borrowings, at the option of Montana-Dakota on stated conditions, up to a maximum of $225.0 million). At March 31,September 30, 2022, there were no amounts outstanding under the revolving credit agreement.
(b)Certain provisions allow for increased borrowings, up to a maximum of $125.0 million.
(c)Outstanding letter(s) of credit reduce the amount available under the credit agreement.
(d)Certain provisions allow for increased borrowings, up to a maximum of $110.0 million.
(e)The commercial paper program is supported by a revolving credit agreement with various banks (provisions allow for increased borrowings, at the option of Centennial on stated conditions, up to a maximum of $700.0 million). At March 31,September 30, 2022, there were no amounts outstanding under the revolving credit agreement.
The respective commercial paper programs are supported by revolving credit agreements. While the amount of commercial paper outstanding does not reduce available capacity under the respective revolving credit agreements, Montana-Dakota and Centennial do not issue commercial paper in an aggregate amount exceeding the available capacity under the credit agreements. The commercial paper borrowings may vary during the period, largely the result of fluctuations in working capital requirements due to the seasonality of certain operations of the Company's subsidiaries.
Total equity as a percent of total capitalization was 5453 percent, 5758 percent and 55 percent at March 31,September 30, 2022 and 2021, and December 31, 2021, respectively. This ratio is calculated as the Company's total equity, divided by the Company's total capital.
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Total capital is the Company's total debt, including short-term borrowings and long-term debt due within one year, plus total equity. This ratio is an indicator of how a company is financing its operations, as well as its financial strength.
Cascade On June 15, 2022, Cascade issued $50.0 million of senior notes under a note purchase agreement with maturity dates ranging from June 15, 2032 to June 15, 2052, at a weighted average interest rate of 4.50 percent. The agreement contains customary covenants and provisions, including a covenant of Cascade not to permit, at any time, the ratio of total debt to total capitalization to be greater than 65 percent.
Intermountain On June 15, 2022, Intermountain issued $40.0 million of senior notes under a note purchase agreement with maturity dates ranging from June 15, 2052 to June 15, 2062, at a weighted average interest rate of 4.68 percent. The agreement contains customary covenants and provisions, including a covenant of Intermountain not to permit, at any time, the ratio of total debt to total capitalization to be greater than 65 percent.
On October 13, 2022, Intermountain amended and restated its revolving credit agreement to increase the borrowing capacity to $100.0 million and extend the maturity date to October 13, 2027. Any borrowings under the revolving credit agreement are classified as long-term debt as they are intended to be refinanced on a long-term basis through continued borrowings.
Centennial On March 18, 2022, Centennial entered into a $100.0 million term loan agreement with a SOFR-based variable interest rate and a maturity date of March 17, 2023. The agreement contains customary covenants and provisions, including a covenant of Centennial not to permit, at any time, the ratio of total debt to total capitalization to be greater than 65 percent. The covenants also include certain restrictions on the sale of certain assets, loans and investments.
On March 23, 2022, Centennial issued $150.0 million of senior notes under a note purchase agreement with maturity dates ranging from March 23, 2032 to March 23, 2034, at a weighted average interest rate of 3.71 percent. The agreement contains customary covenants and provisions, including a covenant of Centennial not to permit, at any time, the ratio of total debt to total capitalization to be greater than 60 percent.
Equity Resources
The Company currently has a shelf registration statement on file with the SEC, under which the Company may issue and sell any combination of common stock and debt securities. The Company may sell such securities if warranted by market conditions and the Company's capital requirements.
In August 2020, the Company amended the Distribution Agreement dated February 22, 2019, with J.P. Morgan Securities LLC and MUFG Securities Americas Inc., as sales agents. This agreement, as amended, allows the offering, issuance and sale of up to 6.4 million shares of the Company's common stock in connection with an "at-the-market" offering. The common stock may be
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Index
offered for sale, from time to time, in accordance with the terms and conditions of this agreement. As of March 31,September 30, 2022, the Company had capacity to issue up to 3.6 million additional shares of common stock under the "at-the-market" offering program. Proceeds from the sale of shares of common stock under this agreement have been and are expected to be used for general corporate purposes, which may include, among other things, working capital, capital expenditures, debt repayment and the financing of acquisitions.
Details of the Company's "at-the-market" offering activity was as follows:
Three Months EndedThree Months EndedNine Months Ended
March 31,September 30,September 30,
202220212022202120222021
(In millions)(In millions)
Shares issuedShares issued— .7 Shares issued— 1.0 — 2.8 
Net proceeds *Net proceeds *$(.1)$19.7 **Net proceeds *$— $34.2 **$(.1)$88.8 **
*    Net proceeds include issuance costs of $127,000$— and $300,000$149,000 for the three and nine months ended March 31,September 30, 2022, respectively, and $425,000 and $1.2 million for the three and nine months ended September 30, 2021, respectivelyrespectively.
**    Net proceeds were used for capital expenditures.
Material cash requirements
For more information on the Company's contractual obligations on long-term debt, operating leases and purchase commitments, see Part II, Item 7 in the 2021 Annual Report. There were no material changes in the Company's contractual obligations related to estimated interest payments, purchase commitments, asset retirement obligations, uncertain tax positions and minimum funding requirements for its defined benefit plans for 2022 from those reported in the 2021 Annual Report.
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At September 30, 2022, the Company's future estimated interest payments increased 12 percent since December 31, 2021, due to higher debt balances and rising interest rates. The Company expects interest rates will continue to increase the remainder of 2022 as indicated by the Federal Reserve. At September 30, 2022, the Company's future purchase commitments increased 7 percent since December 31, 2021, down from an increase of 14 percent at June 30, 2022. The increase in purchase commitments is largely due to increases to the cost of asphalt oil at the construction materials and contracting business and higher natural gas costs and contract extensions associated with natural gas supply at the natural gas distribution business. The Company anticipates that these items will be funded by various sources, including internally generated funds, as well as credit facilities and commercial paper of the Company's subsidiaries.
Material short-term cash requirements of the Company include repayment of outstanding borrowings and interest payments on those agreements, payments on operating lease agreements, payment of obligations on purchase commitments and asset retirement obligations.
Material long-term cash requirements of the Company include repayment of outstanding borrowings and interest payments on those agreements, payments on operating lease agreements, payment of obligations on purchase commitments and asset retirement obligations.
New Accounting Standards
For information regarding new accounting standards, see Note 2, which is incorporated by reference.
Critical Accounting Estimates
The Company's critical accounting estimates include impairment testing of goodwill; fair values of acquired assets and liabilities under the acquisition method of accounting; regulatory assets expected to be recovered in rates charged to customers; revenue recognized using the cost-to-cost measure of progress for contracts; actuarially determined benefit costs; and tax provisions. There were no material changes in the Company's critical accounting estimates from those reported in the 2021 Annual Report. For more information on critical accounting estimates, see Part II, Item 7 in the 2021 Annual Report.
Item 3. Quantitative and Qualitative Disclosures About Market Risk
The Company is exposed to the impact of market fluctuations associated with interest rates and commodity prices. The Company has policies and procedures to assist in controlling these market risks and from time to time has utilized derivatives to manage a portion of its risk.
Interest rate risk
There were no material changes to interest rate risk faced by the Company from those reported in the 2021 Annual Report.
At March 31,September 30, 2022, the Company had no outstanding interest rate hedges.
Commodity price risk
There were no material changes to commodity price risk faced by the Company from those reported in the 2021 Annual Report.
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Item 4. Controls and Procedures
Evaluation of disclosure controls and procedures
The term "disclosure controls and procedures" is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act. The Company's disclosure controls and other procedures are designed to provide reasonable assurance that information required to be disclosed in the reports that the Company files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC's rules and forms. The Company's disclosure controls and other procedures are designed to provide reasonable assurance that information required to be disclosed is accumulated and communicated to management, including the Company's chief executive officer and chief financial officer, to allow timely decisions regarding required disclosure. The Company's management, with the participation of the Company's chief executive officer and chief financial officer, has evaluated the effectiveness of the Company's disclosure controls and other procedures as of the end of the period covered by this report. Based upon that evaluation, the chief executive officer and the chief financial officer have concluded that, as of the end of the period covered by this report, such controls and procedures were effective at a reasonable assurance level.
Changes in internal controls
No change in the Company's internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) occurred during the three months ended March 31,September 30, 2022, that has materially affected, or is reasonably likely to materially affect, the Company's internal control over financial reporting.
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Part II -- Other Information
Item 1. Legal Proceedings
There were no material changes to the Company's legal proceedings in Part 1, Item 3 - Legal Proceedings in the 2021 Annual Report.
Item 1A. Risk Factors
Please refer to the Company's risk factors that are disclosed in Part I, Item 1A. Risk Factors in the 2021 Annual Report that could be materially harmful to the Company's business, prospects, financial condition or financial results if they occur. At March 31,September 30, 2022, there were no material changes to the Company's risk factors provided in Part I, Item 1A. Risk Factors in the 2021 Annual Report.Report other than as set forth below.
The proposed separation of Knife River into an independent, publicly traded company is subject to various risks and uncertainties, and may not be completed on the terms or timeline currently contemplated, if at all. In addition, the Company's review of options to optimize the value of its construction services business is subject to various risks and uncertainties and may not achieve its intended goals.
On August 4, 2022, the Company announced its plan to separate Knife River, the construction materials and contracting business, from the Company, resulting in two independent, publicly traded companies. The proposed separation is expected to be effected as a tax-free spinoff to the Company’s stockholders for U.S. federal income tax purposes and is expected to be completed in 2023, subject to the satisfaction of customary conditions, including final approval by the Company’s Board of Directors, receipt of a tax opinion and a private letter ruling from the IRS, and the effectiveness of a registration statement on Form 10 to be filed with the SEC.
The execution of the proposed separation will require significant time and attention from the Company’s senior management and employees, which could disrupt the Company’s ongoing business and adversely affect financial results and results of operations. The proposed separation is also complex, and completion of the proposed separation and the timing of its completion will be subject to a number of factors and conditions, including the readiness of the new company to operate as an independent public company and finalization of the capital structure of the new company. Unanticipated developments could delay, prevent or otherwise adversely affect the proposed separation, including, but not limited to, changes in general economic and financial market conditions, material adverse changes in business or industry conditions, unanticipated costs and potential problems or delays in obtaining various regulatory and tax approvals or clearances. In particular, changes in interest or exchange rates and the effects of inflation could delay or adversely affect the proposed separation, including in connection with any debt financing transactions undertaken in connection with the separation or the terms of any indebtedness incurred in connection therewith. There can be no assurances that the Company will be able to complete the proposed separation on the terms or on the timeline that was announced, if at all. In addition, if the separation is completed, the Company may not be able to achieve the full strategic and financial benefits that are expected to result from the separation. There can be no assurance that the combined value of the common stock of the two companies will be equal to or greater than what the value of the Company’s common stock would have been had the proposed separation not occurred, or that the separation will not adversely impact the ability of the Company to maintain its historical practices with respect to dividends.
In addition, on November 3, 2022, the Company announced its intention to create two pure-play publicly traded companies, one focused on regulated energy delivery and the other on construction materials, and that, to achieve this future structure, the board has authorized management to commence a strategic review process of MDU Construction Services. The Company's intent to create two pure-play publicly traded companies is subject to changing market conditions and may not receive the level of market support that the Company expects, and may not be completed timely or at all.
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Item 2. Unregistered Sales of Equity Securities and Use of Proceeds
The following table includes information with respect to the Company's purchase of equity securities:
ISSUER PURCHASES OF EQUITY SECURITIES
Period(a)
Total Number
of Shares
(or Units)
Purchased (1)
(b)
Average Price
Paid per Share
(or Unit)
(c)
Total Number of Shares
(or Units) Purchased
as Part of Publicly
Announced Plans
or Programs (2)
(d)
Maximum Number (or
Approximate Dollar
Value) of Shares (or
Units) that May Yet Be
Purchased Under the
Plans or Programs (2)
January 1 through January 31, 2022— $— — — 
February 1 through February 28, 2022266,821 $27.73 — — 
March 1 through March 31, 2022— $— — — 
Total266,821 $27.73 — — 
ISSUER PURCHASES OF EQUITY SECURITIES
Period(a)
Total Number
of Shares
(or Units)
Purchased (1)
(b)
Average Price
Paid per Share
(or Unit)
(c)
Total Number of Shares
(or Units) Purchased
as Part of Publicly
Announced Plans
or Programs (2)
(d)
Maximum Number (or
Approximate Dollar
Value) of Shares (or
Units) that May Yet Be
Purchased Under the
Plans or Programs (2)
July 1 through July 31, 2022— $— — — 
August 1 through August 31, 2022— $— — — 
September 1 through September 30, 2022— $— — — 
Total— $— — — 
(1)    Represents shares of common stock purchased on the open market in connection with the vesting of shares granted pursuant to the Long-Term Performance-Based Incentive Plan.
(2)    Not applicable. The Company does not currently have in place any publicly announced plans or programs to purchase equity securities.
Item 4. Mine Safety Disclosures
For information regarding mine safety violations or other regulatory matters required by Section 1503(a) of the Dodd-Frank Act and Item 104 of Regulation S-K, see Exhibit 95 to this Form 10-Q, which is incorporated herein by reference.
Item 5. Other Information
None.
Item 6. Exhibits
See the index to exhibits immediately preceding the signature page to this report.
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Exhibits Index
Incorporated by Reference
Exhibit NumberExhibit DescriptionFiled
Herewith
FormPeriod
Ended
ExhibitFiling
Date
File Number
3(a)8-K3.25/8/191-03480
3(b)8-K3.12/15/191-03480
+10(a)X
31(a)X
31(b)X
32X
95X
101.INSXBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document
101.SCHXBRL Taxonomy Extension Schema Document
101.CALXBRL Taxonomy Extension Calculation Linkbase Document
101.DEFXBRL Taxonomy Extension Definition Linkbase Document
101.LABXBRL Taxonomy Extension Label Linkbase Document
101.PREXBRL Taxonomy Extension Presentation Linkbase Document
104Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)
+    Management contract, compensatory plan or arrangement.
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Signatures
Pursuant to the requirements of the Exchange Act, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.
  MDU RESOURCES GROUP, INC.
    
DATE:May 5,November 3, 2022BY:/s/ Jason L. Vollmer
   Jason L. Vollmer
   Vice President and Chief Financial Officer
    
    
  BY:/s/ Stephanie A. Barth
   Stephanie A. Barth
   Vice President, Chief Accounting Officer
and Controller


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