UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
FORM 10-K
 
x
Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 for the fiscal year ended December 31, 2006.
2007.
 
¨
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: 001-32834
 
United States Oil Fund, LP
(Exact name of registrant as specified in its charter)
 
   
Delaware
 
20-2830691
(State or other jurisdiction of incorporation or organization)
 
 
(I.R.S. Employer Identification No.)
 
 
1320 Harbor Bay Parkway, Suite 145
Alameda, California 94502
(Address of principal executive offices) (Zip Code)
 
(510) 522-3336
(Registrant’s telephone number, including area code)
 
Securities registered pursuant to Section 12(b) of the Act:
Units    American Stock Exchange
 
(Title of class)     (Name of exchange on which registered)
Units    American Stock Exchange

Securities registered pursuant to Section 12(g) of the Act: None
 
Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  
¨ Yes    x No

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.  
¨ Yes    x No

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.  
x Yes    ¨ No

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405 of this chapter)229.405) is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.
x Yes    ¨ No
 
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a non-accelerated filer.smaller reporting company. See definitiondefinitions of “accelerated“large accelerated filer," "accelerated filer” and large accelerated filer”"smaller reporting company" in Rule 12b-2 of the Exchange Act. (Check one.)
Large accelerated filer   ¨                Accelerated filer  x¨               Non-accelerated filer  x¨         Smaller reporting company  ¨
(Do not check if a smaller reporting company)
 
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act.).
¨ Yes    x No

The aggregate market value of the registrant’s common stockunits held by non-affiliates of the registrant as of June 30, 20062007 was: $265,126,000.$673,000,000.
 
The registrant had 18,800,0004,100,000 outstanding units as of March 26, 2007.12, 2008.
 
DOCUMENTS INCORPORATED BY REFERENCE:
None.




UNITED STATES OIL FUND, LP
  
   
Table of Contents
  
   
   
 
Page
 
   
 
   
 
   
 
   
 
   
 
   
  
  
 
   
 
   
  
 
   
   
 
   
  
 
   
 
   
 
   
  
 
   
 
   
  
 
   
 
   
 
   
  
 
   
 
   
 Signatures
 

Part I

Business.
 
What is USOF?
 
United States Oil Fund, LP ("USOF") is a Delaware limited partnership organized on May 12, 2005. USOF maintains its main business office at 1320 Harbor Bay Parkway, Suite 145, Alameda, California 94502. USOF is a commodity pool.pool that issues limited partnership interests ("units") traded on the American Stock Exchange (the "AMEX"). It operates pursuant to the terms of the ThirdFourth Amended and Restated Agreement of Limited Partnership dated as of January 19,November 13, 2007 ("LP(the "LP Agreement"), which grants full management control to the General Partner.
 
Who is the General Partner?
 
OurUSOF's sole General Partnergeneral partner is Victoria Bay Asset Management, LLC (the "General Partner"), a single member limited liability company that was formed in the state of Delaware on May 10, 2005 and which changed its name on June 10, 2005. It maintains its main business office at 1320 Harbor Bay Parkway, Suite 145, Alameda, California 94502. The General Partner is a wholly-owned subsidiary of Wainwright Holdings, Inc., a Delaware corporation (“Wainwright”). Mr. Nicholas Gerber (discussed below) controls Wainwright by virtue of his ownership of Wainwright’s shares. Wainwright is a holding company that also owns an insurance company organized under Bermuda law and a registered investment adviser firm named Ameristock Corporation. The General Partner is a member of the National Futures Association ("NFA"(the "NFA") and iswas registered with the Commodity Futures Trading Commission ("CFTC"(the "CFTC") as of December 1, 2005. The General Partner’s registration as a Commodity Pool Operator ("CPO") was approved on December 1, 2005.
 
On September 8, 2006, the General Partner formed the United States Natural Gas Fund, LP ("USNG'USNG"), another limited partnership that will beis a commodity pool and intends to issueissues units to be traded on the American Stock Exchange.AMEX. The investment objective of USNG is for the changes in percentage terms of the unit’sunits' net asset value ("NAV") to reflect the changes in percentage terms of the price of natural gas delivered at the Henry Hub, Louisiana, as measured by the “Benchmark Futures Contract,”changes in the price of the futures contract on natural gas traded on the New York Mercantile Exchange (the "NYMEX"), less USNG’s expenses. USNG began trading on April 18, 2007. The General Partner is the general partner of USNG and will beis responsible for the management of the USNG. Wainwright will bewas the initial limited partner of USNG. Investors in USOF who wish to receive additional information concerning the United States Natural Gas Fund, LP, may do so by calling 1-800-920-0259, or going on-line to www.unitedstatesnaturalgasfund.com.
 
On June 27, 2007, the General Partner formed the United States 12 Month Oil Fund, LP (“US12OF”), also a limited partnership that is a commodity pool and issues units traded on the AMEX.  The investment objective of US12OF is for changes in percentage terms of its units’ NAV to reflect the changes in percentage terms of the price of light, sweet crude oil delivered to Cushing, Oklahoma, as measured by the changes in the average of the prices of 12 futures contracts on crude oil traded on the NYMEX, less US12OF's expenses.  US12OF began trading on December 6, 2007. The General Partner is the general partner of US12OF and is responsible for the management of US12OF.  Wainwright was the initial limited partner of US12OF. Investors in USOF who wish to receive additional information concerning the United States 12 Month Oil Fund, LP, may do so by calling 1-800-920-0259, or going on-line to www.unitedstates12monthoilfund.com.
On April 12, 2007, the General Partner formed the United States Gasoline Fund, LP (“USG”), also a limited partnership that is a commodity pool and issues units traded on the AMEX.  The investment  objective of USG is for the changes in percentage terms of its units’ NAV to reflect the changes in percentage terms of the price of unleaded gasoline delivered to the New York harbor, as measured by the changes in the price of the futures contract on gasoline traded on the NYMEX, less USG's expenses.  USG began trading on February 26, 2008.  The General Partner is the general partner of USG and is responsible for the management of USG.  Wainwright was the initial limited partner of USG.  Investors in USOF who wish to receive additional information concerning the United States Gasoline Fund, LP, may do so by calling 1-800-920-0259, or going on-line to www.unitedstatesgasolinefund.com.
The General Partner is currently in the process of registering two other exchange traded security funds, the United States Heating Oil Fund, LP (“USHO) and the United States 12 Month Natural Gas Fund, LP (“US12NG”).  USHO will be a publicly traded limited partnership which seeks to have the changes in percentage terms of its units’ NAV track the changes in percentage terms of the price of heating oil (also known as No. 2 fuel) delivered to the New York harbor.  US12NG will be a publicly traded limited partnership which will seek to have the changes in percentage terms of its units’ NAV reflect the changes in percentage terms of the price of natural gas delivered at the Henry Hub, Louisiana, as measured by the changes in the average of the prices of 12 futures contracts on natural gas traded on the NYMEX.
1

The General Partner is required to evaluate the credit risk for USOF to the futures commission merchant, oversee the purchase and sale of USOF’s units by certain authorized purchasers ("Authorized Purchasers,Purchasers"), review daily positions and margin requirements of USOF and manage USOF’s investments. The General Partner also pays the fees of ALPS Distributors, Inc. ("Marketing(the "Marketing Agent"), Brown Brothers Harriman & Co. ("Administrator"), and Brown Brothers Harriman & Co. ("Custodian"BBH&Co.")., which acts as the administrator (the "Administrator") and the custodian (the "Custodian") for USOF.
 
Limited partners have no right to elect the General Partner on an annual or any other continuing basis. If the General Partner voluntarily withdraws, however, the holders of a majority of ourUSOF's outstanding limited partner interestsunits (excluding for purposes of such determination interestsunits owned, if any, by the withdrawing General Partner and its affiliates) may elect its successor. The General Partner may not be removed as general partner except upon approval by the affirmative vote of the holders of at least 66 and 2/3 percent of ourUSOF's outstanding limited partnership interestsunits (excluding limited partnership interestsunits owned, if any, by the General Partner and its affiliates), subject to the satisfaction of certain conditions set forth in the LP Agreement.
 
The business and affairs of ourthe General Partner are managed by a board of directors, which is comprised of four management directors, whosome of whom are also its executive officers (“Management(the “Management Directors”) and three independent directors who meet the independent director requirements established by the American Stock ExchangeAMEX and the Sarbanes-Oxley Act of 2002. Notwithstanding the foregoing, the Management Directors have the authority to manage the General Partner pursuant to its Third Amended and Restated Limited Liability Company Agreement. The board of directors of the General Partner has an audit committee which is made up of the three independent directors (Peter M. Robinson, Gordon L. Ellis and Malcolm R. Fobes III). The audit committee is governed by an audit committee charter that is posted on USOF’s website.website, http://www.unitedstatesoilfund.com. Mr. Fobes and Mr. Ellis meet the financial sophistication requirements of the American Stock ExchangeAMEX and the audit committee charter. Through its Management Directors, the General Partner manages the day-to-day operations of USOF.
1

How Does USOF Operate?
 
The net assets of USOF consist primarily of investments in futures contracts for West Texas Intermediate ("WTI") light, sweet crude oil, but may also consist of other types of crude oil, heating oil, gasoline, natural gas and other petroleum-based fuels that are traded on the New York Mercantile Exchange,NYMEX, ICE Futures or other U.S. and foreign exchanges (collectively, “Oil Futures Contracts”). USOF may also invest in other oil-related investments such as cash-settled options on Oil Futures Contracts, forward contracts for oil, and over-the-counter transactions that are based on the price of crude oil, and other petroleum-based fuels, Oil Futures Contracts and indices based on the foregoing (collectively, “Other Oil Interests”). For convenience and unless otherwise specified, Oil Futures Contracts and Other Oil Interests collectively are referred to as “oil interests” in this annual report on Form 10-K.
 
USOF invests in oil interests to the fullest extent possible without being leveraged or unable to satisfy its current or potential margin or collateral obligations with respect to its investments in Oil Futures Contracts and Other Oil Interests. In pursuing this objective, the primary focus of the General Partner is the investment in Oil Futures Contracts and the management of its investments in short-term obligations of the United States of two years or less (“Treasuries”), cash andand/or cash equivalents for margining purposes and as collateral.
 
The investment objective of USOF is forto have the changes in percentage terms of the units’ net asset value ("NAV") toNAV reflect the changes in percentage terms of the spot price of WTI light, sweet crude oil delivered to Cushing, Oklahoma, as measured by the changes in the price of the futures contract on WTI light, sweet crude oil as traded on the New York Mercantile ExchangeNYMEX that is the near month contract to expire, except when the near month contract is within two weeks of expiration, in which case the futures contract will be the next month contract to expire.expire, less USOF's expenses. It is not the intent of USOF to be operated in a fashion such that its NAV will equal, in dollar terms, the spot price of light, sweet crude oil or any particular futures contract based on light, sweet crude oil.
2

USOF seeks to achieve its investment objective by investing in a mix of Oil Futures Contracts and Other Oil Interests such that changes in USOF’s NAV will closely track the changes in the price of a specified Oil Futures Contract (“Benchmark(the “Benchmark Oil Futures Contract”). The General Partner believes changes in the price of the Benchmark Oil Futures Contract have historically exhibited a close correlation with the changes in the spot price of WTI light, sweet crude oil. On any valuation day (a valuation day is any day as of which USOF calculates its NAV), the Benchmark Oil Futures Contract is the near month contract for WTI light, sweet crude oil traded on the New York Mercantile ExchangeNYMEX unless the near month contract will expire within two weeks of the valuation day, in which case the Benchmark Oil Futures Contract is the next month contract for WTI light, sweet crude oil traded on the New York Mercantile Exchange.NYMEX.

More specifically,As a specific benchmark, the General Partner endeavors to place USOF’s trades in Oil Futures Contracts and Other Oil Interests and otherwise manage USOF’s investments so that A will be within plus/minus 10 percent of B, where:

·  
·
A is the average daily change in USOF’s NAV for any period of 30 successive valuation days,days; i.e., any day as of which USOF calculates its NAV, and
·
B is the average daily change in the price of the Benchmark Oil Futures Contract over the same period.

The General Partner believes that market arbitrage opportunities cause daily changes in USOF’s unit price on the American Stock ExchangeAMEX to closely track daily changes in USOF’s NAV. The General Partner further believes that the daily changes in prices of the Benchmark Oil Futures Contract have historically closely tracked the daily changes in the spot pricesprice of WTI light, sweet crude oil. The General Partner believes that the net effect of these two relationships and the expected relationship described above between USOF’s NAV and the Benchmark Oil Futures Contract will be that the daily changes in the price of USOF’s units on the American Stock ExchangeAMEX will continue to closely track the daily changes in the spot price of a barrel of WTI light, sweet crude oil, less USOF’s expenses. The following graph demonstrates the correlation between the daily changes in the NAV of USOF and the spot price of WTI light, sweet crude oildaily changes in the Benchmark Oil Futures Contract during the last thirty valuation days endingended December 31, 2006.2007
.
2

An investment in the units allows both retail and institutional investors to easily gain exposure to the crude oil market in a cost-effective manner. TheIn addition, the units also provide additional means for diversifying an investor’s investments or hedging exposure to changes in oil prices.
3

The Benchmark Oil Futures Contract will be changed or “rolled” from the near month contract to expire to the next month to expire over a four (4) day period.during one day.
 
These relationships are illustrated in the following diagram:
 
The Price of USOF’s Units Is Expected to Correlate Closely
With USOF’S NAV
 
USOF’s units are traded on the American Stock Exchange.AMEX. The price of
units fluctuates in response to USOF’s NAV and the supply and demand
pressures of the Exchange.AMEX. Because of certain arbitrage opportunities, the
General Partner believes the price of USOF’s units traded on the
ExchangeAMEX will correlate closely with USOF’s NAV.
 
 
Daily Changes in USOF’s NAV Are Expected to Correlate Closely With
theDaily Changes in the Price of the Benchmark Oil
Futures Contract
 
The General Partner endeavors to invest USOF’s assets as fully as
possible in Oil Futures Contracts and Other Oil Interests so that the
 changes in the NAV closely correlate with changes in the price of the
Benchmark Oil Futures Contract.
 
 
Daily Changes in the Price of the Benchmark Oil Futures
Contract Are Expected to Correlate Closely With Daily Changes
in the Spot Price of WTI Light, Sweet Crude Oil
 
The General Partner believes that changes in the price of the Benchmark
Oil Futures Contract will closely correlate with changes in the cash or
spot price of WTI light, sweet crude oil
 
34

The General Partner employs a “neutral” investment strategy in order to track changes in the spot price of WTI light, sweet crude oilthe Benchmark Oil Futures Contract regardless of whether the price of oil goes up or goes down. USOF’s “neutral” investment strategy is designed to permit investors generally to purchase and sell USOF’s units for the purpose of investing indirectly in oil in a cost-effective manner, and/or to permit participants in the oil or other industries to hedge the risk of losses in their crude oil-related transactions. Accordingly, depending on the investment objective of an individual investor, the risks generally associated with investing in crude oil and/or the risks involved in hedging may exist. In addition, an investment in USOF involves the risk that the changes in the price of USOF’s units will not accurately track the changes in the Benchmark Oil Futures Contract.
 
USOF’s total portfolio composition is disclosed each business day that the American Stock ExchangeAMEX is open for trading on USOF’s website at http://www.unitedstatesoilfund.com and through the American Stock Exchange’sAMEX’s website at http://www.amex.com. The website disclosure of portfolio holdings is made daily and includes, as applicable, the name and value of each oil interest, the specific types of Other Oil Interests and characteristics of such Other Oil Interests, Treasuries, and amount of the cash andand/or cash equivalents held in USOF’s portfolio. USOF’s website is publicly accessible at no charge. USOF’s assets are held in segregation pursuant to the Commodity Exchange Act (the "CEA") and CFTC regulations. 
 
The units issued by USOF may be purchased only by Authorized Purchasers only in blocks of 100,000 units called Creation Baskets. The amount of the purchase payment for a Creation Basket is equal to the aggregate NAV of units in the Creation Basket. Similarly, Authorized Purchasers may redeem units only in blocks of 100,000 units called Redemption Baskets. The amount of the redemption proceeds for a Redemption Basket is equal to the aggregate NAV of units in the Redemption Basket. The purchase price for Creation Baskets and the redemption price for Redemption Baskets is the actual NAV calculated at the end of the business day when notice for a purchase or redemption is received by USOF. The American Stock ExchangeAMEX publishes an approximate intra-day NAV intra-day based on the prior day’s NAV and the current price of Benchmark Oil Futures Contracts, but the basket price is determined based on the actual NAV at the end of the dayday.
 
UnitsWhile USOF issues units only in Creation Baskets, units may also be purchased and sold in much smaller increments than a Creation Basket on the American Stock Exchange. However, theseAMEX. These transactions, however, are effected at the bid and ask prices established by specialist firm(s). Like any listed security, units can be purchased and sold at any time a secondary market is open.
Graph A and Graph B on the following page illustrate the historical correlation between the monthly average spot price of WTI light, sweet crude oil and the monthly average price of futures contracts for WTI light, sweet crude oil delivered to Cushing, Oklahoma traded on the New York Mercantile Exchange. In addition, Graph C illustrates the historical correlation between the Benchmark Oil Futures Contract and other fuel-based commodity futures contracts in which USOF may invest.
These correlations are relevant because the General Partner endeavors to invest USOF’s assets in Oil Futures Contracts and Other Oil Interests so that the changes in USOF’s NAV correlate as closely as possible with the changes in the price of the Benchmark Oil Futures Contract. As noted, the General Partner also believes that the changes in the price of the Benchmark Oil Futures Contract will closely correlate with the changes in the spot price of WTI light, sweet crude oil. Assuming that the units’ value tracks the Benchmark Oil Futures Contract as intended because of the correlations illustrated by the following charts, the stated objective of USOF for the units’ NAV to reflect the performance of the spot price of WTI light, sweet crude oil would be met if the trend reflected over the past ten years were to continue. However, there is no guarantee that such trend will continue. To obtain the monthly average prices presented below, USOF added the closing prices for every day in each month and then divided that number by the total number of days in that month.
 
The General Partner does not anticipate letting its Oil Futures Contracts expire and taking delivery of the underlying oil. Instead, the General Partner will close existing positions when it is determined appropriate to do so and reinvest the proceeds in new Oil Futures Contracts. Positions may also be closed out to meet orders for Redemption Baskets.
 
By remaining invested as fully as possible in Oil Futures Contracts or Other Oil Interests, the General Partner believes that the changes in percentage terms in USOF’s NAV will continue to closely track the changes in percentage terms in the prices of the futures contracts in which USOF invests. The General Partner believes that certain arbitrage opportunities result in the price of the units traded on the American Stock ExchangeAMEX closely tracking the NAV of USOF. Additionally, as discussed above, the General Partner has conducted research that indicates that oil futures contracts traded on the New York Mercantile ExchangeNYMEX have closely tracked the spot price of the underlying oil. Based on these expected interrelationships, the General Partner believes that the changes in the price of USOF’s units as traded on the American Stock ExchangeAMEX will continue to closely track the changes in the spot price of WTI light, sweet crude oil.
 
What are Oil Futures Contracts?
 
Oil Futures Contracts are agreements between two parties. One party agrees to buy oil from the other party at a later date at a price and quantity agreed-uponagreed upon when the contract is made. Oil Futures Contracts are traded on futures exchanges, including the New York Mercantile Exchange.NYMEX. For example, the Benchmark Oil Futures Contracts tradeContract is traded on the NYMEX in units of 1,000 barrels.   The price of crude oil futures contracts traded on the New York Mercantile ExchangeNYMEX are priced by floor brokers and other exchange members both through an “open outcry” of offers to purchase or sell the contracts and through an electronic, screen-based system that determines the price by matching electronically offers to purchase and sell.
 
Certain typical and significant characteristics of Oil Futures Contracts are discussed below. Additional risks of investing in Oil Futures Contracts are included in “What are the Risk Factors Involved with an Investment in USOF?”
 
Impact of Accountability Levels, Position Limits and Price Fluctuation Limits. Oil Futures Contracts include typical and significant characteristics. Most significantly, the CFTC and U.S. designated contract markets such as the New York Mercantile ExchangeNYMEX have established accountability levels and position limits on the maximum net long or net short Oil Futures Contractsfutures contracts in commodity interests that any person or group of persons under common trading control (other than as a hedge, which an investment in USOF is not) may hold, own or control. The net position is the difference between an individual or firm’s open long contracts and open short contracts in any one commodity. In addition, most U.S. futures exchanges, such as the New York Mercantile Exchange,NYMEX, limit the price fluctuation for Oil Futures Contracts.
7

The accountability levels for the Benchmark Oil Futures Contract and other Oil Futures Contracts traded on the New York Mercantile ExchangeNYMEX are not a fixed ceiling, but rather a threshold above which the New York Mercantile ExchangeNYMEX may exercise greater scrutiny and control over an investor’s positions. The current accountability level for investments at any one time in Oil Futures Contracts (including investments in the Benchmark Oil Futures Contract)Contract is 20,000 contracts. If USOF exceeds this accountability level for investments in the Benchmark Oil Futures Contracts,Contract, the New York Mercantile ExchangeNYMEX will monitor USOF’s exposure and ask for further information on USOF’s activities, including the total size of all positions, investment and trading strategy, and the extent of USOF’s liquidity resources. If deemed necessary by the New York Mercantile Exchange,NYMEX, it could also order USOF to reduce its position back to the accountability level. As of December 31, 2006,2007, USOF held 12,8714,754 Oil Futures Contracts traded on the New York Mercantile ExchangeNYMEX and 300 Oil Futures Contracts traded on the ICE Futures.
 
If the New York Mercantile ExchangeNYMEX orders USOF to reduce its position back to the accountability level, or to an accountability level that the New York Mercantile ExchangeNYMEX deems appropriate for USOF, such an accountability level may impact the mix of investments in oil interests made by USOF. To illustrate, assume that the price of the Benchmark Oil Futures Contract and the unit price of USOF are each $10, and that the New York Mercantile ExchangeNYMEX has determined that USOF may not own more than 20,000 contracts inBenchmark Oil Futures Contracts. In such case, USOF could invest up to $2 billion of its daily net assets in the Benchmark Oil Futures Contract (i.e., $10 per contract multiplied by 1,000 (a Benchmark Oil Futures Contract is a contract for 1,000 barrels of oil multiplied by 20,000 contracts)) before reaching the accountability level imposed by the New York Mercantile Exchange.NYMEX. Once the daily net assets of the portfolio exceed $2 billion in the Benchmark Oil Futures Contract, the portfolio may not be able to make any further investments in the Benchmark Oil Futures Contract, depending on whether the New York Mercantile ExchangeNYMEX imposes limits. If the New York Mercantile ExchangeNYMEX does impose limits at the $2 billion level (or another level), USOF anticipates that it will invest the majority of its assets above that level in a mix of other Oil Futures Contracts or Other Oil Interests.
 
In addition to accountability levels, the New York Mercantile ExchangeNYMEX imposes position limits on contracts held in the last few days of trading in the near month contract to expire. It is unlikely that USOF will run up against such position limits because USOF’s investment strategy is to change or "roll" from the near month contract to expire to the next month contract over a four-day periodduring one day beginning two weeks from expiration of the contract.
 
U.S. futures exchanges, including the New York Mercantile Exchange,NYMEX, also limit the amount of price fluctuation for Oil Futures Contracts. For example, the New York Mercantile ExchangeNYMEX imposes a $10.00 per barrel ($10,000 per contract) price fluctuation limit for Benchmark Oil Futures Contracts. This limit is initially based off the previous trading day’s settlement price. If any Benchmark Oil Futures Contract is traded, bid, or offered at the limit for five minutes, trading is halted for five minutes. When trading resumes, it begins at the point where the limit was imposed and the limit is reset to be $10.00 per barrel in either direction of that point. If another halt were triggered, the market would continue to be expanded by $10.00 per barrel in either direction after each successive five-minute trading halt. There is no maximum price fluctuation limit during any one trading session.
 
USOF anticipates that to the extent it invests in Oil Futures Contracts other than WTI light, sweet crude oil contracts (such as futures contracts for Brent crude oil, natural gas, heating oil, and gasoline) and Other Oil Interests, it will invest in various non-exchange-traded derivative contracts to hedge the short-term price movements of such Oil Futures Contracts and Other Oil Interests against the current Benchmark Oil Futures Contract.
8

Examples of the position and price limits imposed are as follows:
Futures Contract 
Futures ContractPosition Accountability
Levels and Limits
 
Position Accountability
Levels and Limits
Maximum Daily
Price Fluctuation
New York Mercantile Exchange WTINYMEX Light, Sweet Crude Oil Any one month/all months: 20,000 net futures, but not to exceed 2,0003,000 contracts in the last three days of trading in the spot month. $10.00 per barrel ($10,000 per contract) for all months. If any contract is traded, bid, or offered at the limit for five minutes, trading is halted for five minutes. When trading resumes, the limit is expanded by $10.00 per barrel in either direction. If another halt were triggered, the market would continue to be expanded by $10.00 per barrel in either direction after each successive five-minute trading halt. There will be no maximum price fluctuation limits during any one trading session.
ICE Futures Brent Crude Futures There are no position limits. There is no maximum daily price fluctuation limit.
ICE WTI Crude Futures There are no position limits. There is no maximum daily price fluctuation limit.fluctuation.
New York Mercantile ExchangeNYMEX Heating Oil Any one month/all months: 7,000 contracts for all months combined,net futures, but not to exceed 1,000 contracts in the last three days of trading in the spot month$0.25 per gallon ($10,500 per contract) for all months. If any contract is traded, bid, or offered at the limit for five minutes, trading is halted for five minutes. When trading resumes, the limit is expanded by $0.25 per gallon in either direction. If another halt were triggered, the market would continue to be expanded by $0.25 per gallon in either direction after each successive five-minute trading halt. There will be no maximum price fluctuation limits during any one trading session.
NYMEX GasolineAny one month/all months: 7,000 net futures, but not to exceed 1,000 contracts in the last three days of trading in the spot month. $0.25 per gallon ($10,500 per contract) for all months. If any contract is traded, bid, or offered at the limit for five minutes, trading is halted for five minutes. When trading resumes, the limit is expanded by $0.25 per gallon in either direction. If another halt were triggered, the market would continue to be expanded by $0.25 per gallon in either direction after each successive five-minute trading halt. There will be no maximum price fluctuation limits during any one trading session.
New York Mercantile Exchange GasolineNYMEX Natural Gas Any one month/all months: 7,00012,000 net futures.futures, but not to exceed 1,000 contracts in the last three days of trading in the spot month. $0.253.00 per gallonmmBtu ($10,50030,000 per contract) for all months. If any contract is traded, bid, or offered at the limit for five minutes, trading is halted for five minutes. When trading resumes, the limit is expanded by $0.25$3.00 per gallonmmBtu in either direction. If another halt were triggered, the market would continue to be expanded by $0.25$3.00 per gallonmmBtu in either direction after each successive five-minute trading halt. There will be no maximum price fluctuation limits during any one trading session.
11

What is the Flow of Units?
 
 

What are the Trading Policies of USOF?
 
Liquidity
 
USOF invests only in Oil Futures Contracts and Other Oil Interests that are traded in sufficient volume to permit, in the opinion of the General Partner, ease of taking and liquidating positions in these financial interests.
 
Spot Commodities
 
While the oil contractsOil Futures Contracts traded on the New York Mercantile ExchangeNYMEX can be physically settled, USOF does not intend to take or make physical delivery. USOF may from time to time trade in Other Oil Interests, including contracts based on the spot price of crude oil.
12

 
While USOF’s historical ratio of margin to total assets has generally ranged from 0% to 5%, the General Partner endeavors to have the value of USOF’s Treasuries, cash andand/or cash equivalents, whether held by USOF or posted as margin or collateral, at all times approximate the aggregate face value of USOF's obligations under its Oil Futures Contracts and Other Oil Interests.
 
Borrowings
 
Borrowings are not be used by USOF, unless USOF is required to borrow money in the event of physical delivery, if USOF trades in cash commodities, or for short-term needs created by unexpected redemptions. USOF expects to have the value of its Treasuries, cash and/or cash equivalents whether held by USOF or posted as margin or collateral, at all times approximate the aggregate face value of its obligations under its Oil Futures Contracts and Other Oil Interests. USOF has not established and does not plan to establish credit lines.
 
 
USOF has not and will not employ the technique, commonly known as pyramiding, in which the speculator uses unrealized profits on existing positions as variation margin for the purchase or sale of additional positions in the same or another commodity interest.
 
Who are the Service Providers?
 
Brown Brothers Harriman & Co.BBH&Co. is the registrar and transfer agent for the units. Brown Brothers Harriman & Co.BBH&Co. is also the custodianCustodian for USOF. In this capacity, Brown Brothers Harriman & Co.BBH&Co. holds USOF’s Treasuries, cash and Treasuriesand/or cash equivalents pursuant to a custodial agreement. In addition, Brown Brothers Harriman & Co.BBH&Co. performs certain administrative and accounting services for USOF and prepares certain Securities and Exchange Commission ("SEC") and CFTC reports on behalf of USOF. The General Partner pays Brown Brothers Harriman & Co.’s feesBBH&Co. a fee for these services.
 
USOF also employs ALPS Distributors, Inc. as a Marketing Agent. The General Partner pays ALPS Distributors, Inc.’s marketingthe Marketing Agent fee of $425,000 per annum plus an incentive fee as follows: 0.0%0.00% on USOF’s assets from $0-500 million; .04%0.04% on USOF’s assets from $500 million-$4 billion; .03%and 0.03% on USOF’s assets in excess of $4 billion; provided, however, that in no event may the aggregate compensation paid to the Marketing Agent and any affiliate of the General Partner for distribution-related services in connection with the offering of Unitsunits exceed ten percent (10%) of the gross proceeds of the offering.
 
UBS Securities LLC (“UBS Securities”) is USOF’s futures commission merchant. USOF and UBS Securities have entered into an Institutional Futures Client Account Agreement. This Agreement requires UBS Securities to provide services to USOF in connection with the purchase and sale of oil interests that may be purchased or sold by or through UBS Securities for USOF’s account. USOF pays the fees of UBS Securities.
 
UBS Securities’ principal business address is 677 Washington Blvd, Stamford, CT 06901. UBS Securities is a futures clearing broker for USOF. UBS Securities is registered in the U.S. with the National Association of Securities DealersFinancial Industry Regulatory Authority ("NASD"FINRA") as a broker-dealer and with the CFTC as a futures commission merchant. UBS Securities is a member of various U.S. futures and securities exchanges.
 
UBS Securities was involved in the 2003 Global Research Analyst Settlement. This settlement iswas part of the global settlement that UBS Securities and nine other firms have reached with the SEC, NASD,U.S. Securities and Exchange Commission (the "SEC"), FINRA, New York Stock Exchange (the "NYSE") and various state regulators. As part of the settlement, UBS Securities has agreed to pay $80,000,000 divided among retrospective relief, for procurement of independent research and for investor education. UBS Securities has also undertaken to adopt enhanced policies and procedures reasonably designed to address potential conflicts of interest arising from research practices.
On June 27, 2007, the Office of the Secretary of the Commonwealth of Massachusetts filed an administrative complaint (the “Complaint”) and notice of adjudicatory proceeding, captioned In The Matter of UBS Securities, LLC, Docket No. E-2007-0049, which alleges, in sum and substance, that UBS Securities has been violating the Massachusetts Uniform Securities Act (the “MUSA”) and related regulations by providing the advisers for certain hedge funds with gifts and gratuities in the form of below market office rents, personal loans with below market interest rates, event tickets and other perks, in order to induce those hedge fund advisers to increase or retain their level of prime brokerage fees paid to UBS Securities.  The Secretary seeks to require UBS Securities to permanently cease and desist from conduct that violates the MUSA and regulations, to censure UBS Securities, to require UBS Securities to pay an administrative fine of an unspecified amount, and to find as fact the allegations of the Complaint.
13

Further, UBS Securities, like most large, full service investment banks and broker-dealers, receives inquiries and is sometimes involved in investigations by the SEC, New York Stock ExchangeFINRA, NYSE and various other regulatory organizations, exchanges and government agencies. UBS Securities fully cooperates with the authorities in all such requests. UBS Securities regularly reportsdiscloses to the SEC on Form B-D investigations that result in orders.FINRA arbitration awards, disciplinary action and regulatory events. These reportsdisclosures are publicly available.available on FINRA’s website at www.finra.org. Actions with respect to UBS Securities’s futures commission merchant business are publicly available on the website of the NFA (www.nfa.futures.org/).
 
UBS Securities acts only as clearing broker for USOF and, as such, is paid commissions for executing and clearing trades on behalf of USOF. UBS Securities neither acts in any supervisory capacity with respect to the General Partner nor participates in the management of the General Partner or USOF.
 
Currently, the General Partner does not employ commoditiescommodity trading advisors. If, in the future, the General Partner does employ commoditiescommodity trading advisors, it will choose each advisor based on arms-length negotiations and will consider the advisor’s experience, fees and reputation.
 
Fees of USOF
Fees and Compensation Arrangements with the General Partner and Non-Affiliated Service Providers*

Service Provider
Compensation Paid by the General Partner
Brown Brothers Harriman & Co.,
Custodian Administrator and Transfer Agent
AdministratorA $50,000$25,000 annual fee for its transfer agency services; and for its custody, fund accounting and fund administration services, the greater of a minimum amount of $250,000$125,000 annually or an assetasset-based charge of (a) 0.06% for the first $500 million of USOF'sUSOF, USNG, US12OF and USG’s net assets, (b) 0.0465% for USOF'sUSOF, USNG, US12OF and USG’s net assets greater than $500 million but less than $1 billion, and (c) and 0.035% of USOF'sUSOF, USNG, US12OF and USG’s net assets that exceed $1 billion.
ALPS Distributors, Inc., Marketing Agent$425,000 per annum plus an incentive fee as follows: 0.0% on USOF’s assets from $0-500 million; .04%0.04% on USOF’s assets from $500 million-$4 billion; .03%0.03% on USOF’s assets in excess of $4 billion.
——————
* The General Partner pays this compensation.
 


Assets
Management Fee
Fees paid during 2006
First $1,000,000,0000.04%0.50% of NAV N/A
After the first $1,000,000,0000.02%0.20% of NAV N/A


Service ProviderCompensation Paid by USOF
UBS Securities LLC, Futures Commission MerchantApproximately $3.50 per buy or sell
Non-Affiliated BrokersApproximately 0.16% of assets

AssetsLicensing Fee
First $1,000,000,0000.04% of NAV
After the first $1,000,000,0000.02% of NAV

***Fees are calculated on a daily basis (accrued at 1/365 of the applicable percentage of NAV on that day) and paid on a monthly basis. USOF is responsible for its pro rata share of the assets held by USOF, USNG, US12OF and USG as well as other funds managed by the General Partner, including US12NG and USHO, when and if such funds commence operations.
Expenses Paid by USOF through December 31, 2007 in dollar terms:

ExpensesAmount in Dollar Terms
Amount Paid to General Partner:$3,622,613
Amount Paid in Portfolio Brokerage Commissions:$1,184,956
Other Amounts Paid or Accrued:$1,530,281
Total Expenses Paid or Accrued:$6,337,850


Expenses Paid by USOF through December 31, 2007 as a Percentage of Average Daily Net Assets:

Expenses
Amount as a Percentage of Average Daily Net Assets
General Partner0.50% annualized
Portfolio Brokerage Commissions0.16% annualized
Other Amounts Paid or Accrued0.21% annualized
Total Expense Ratio0.87% annualized
Form of Units
 
Form of Units
Registered Form. Units are issued in registered form in accordance with the LP Agreement. The Administrator has been appointed registrar and transfer agent for the purpose of transferring units in certificated form. The Administrator keeps a record of all holders of the units in the registry (“Register”(the “Register”). The General Partner recognizes transfers of units in certificated form only if done in accordance with the LP Agreement. The beneficial interests in such units are held in book-entry form through participants and/or accountholders in the Depository Trust Company ("DTC").
 
Book Entry. Individual certificates are not issued for the units. Instead, units are represented by one or more global certificates, which are deposited by the Administrator with DTC and registered in the name of Cede & Co., as nominee for DTC. The global certificates evidence all of the units outstanding at any time. Unitholders are limited to (1) participants in DTC such as banks, brokers, dealers and trust companies ("DTC Participants"), (2) those who maintain, either directly or indirectly, a custodial relationship with a DTC Participant ("Indirect Participants"), and (3) those banks, brokers, dealers, trust companies and others who hold interests in the units through DTC Participants or Indirect Participants, in each case who satisfy the requirements for transfers of units. DTC participantsParticipants acting on behalf of investors holding units through such participants’ accounts in DTC will follow the delivery practice applicable to securities eligible for DTC’s Same-Day Funds Settlement System. Units are credited to DTC Participants’ securities accounts following confirmation of receipt of payment.
 
DTC. DTC is a limited purpose trust company organized under the laws of the State of New York and is a member of the Federal Reserve System, a “clearing corporation” within the meaning of the New York Uniform Commercial Code and a “clearing agency” registered pursuant to the provisions of Section 17A of the Securities Exchange Act of 1934, as amended (“Exchange(the “Exchange Act”). DTC holds securities for DTC Participants and facilitates the clearance and settlement of transactiontransactions between DTC Participants through electronic book-entry changes in accounts of DTC Participants.
15

Transfer of Units
 
Transfers of Units Only Through DTC. The units are only transferable through the book-entry system of DTC. Limited partners who are not DTC Participants may transfer their units through DTC by instructing the DTC Participant holding their units (or by instructing the Indirect Participant or other entity through which their units are held) to transfer the units. Transfers are made in accordance with standard securities industry practice.
 
Transfer/Application Requirements. All purchasers of USOF’s units, and potentially any purchasers of limited partner interestsunits in the future, who wish to become limited partners or other record holders and receive cash distributions, if any, or have certain other rights, must deliver an executed transfer application in which the purchaser or transferee must certify that, among other things, he, she or it agrees to be bound by USOF’s LP Agreement and is eligible to purchase USOF’s securities. Each purchaser of units must execute a transfer application and certification. The obligation to provide the form of transfer application will be imposed on the seller of units or, if a purchase of units is made through an exchange, the form may be obtained directly through USOF. Further, the General Partner may request each record holder to furnish certain information, including that holder’s nationality, citizenship or other related status. A record holder is a unitholder that is, or has applied to be, a limited partner. An investor who is not a U.S. resident may not be eligible to become a record holder or one of the USOF’s limited partners if that investor’s ownership would subject USOF to the risk of cancellation or forfeiture of any of USOF’s assets under any federal, state or local law or regulation. If the record holder fails to furnish the information or if the General Partner determines, on the basis of the information furnished by the holder in response to the request, that such holder is not qualified to become one of USOF’s limited partners, the General Partner may be substituted as a holder for the record holder, who will then be treated as a non-citizen assignee, and USOF will have the right to redeem those securities held by the record holder.
 
·
Taking the current market value of its total assets
 
·
Subtracting any liabilities
 
Each Authorized Purchaser is required to be registered as a broker-dealer under the Exchange Act and is a member in good standing with the NASD,FINRA, or exempt from being or otherwise not required to be licensed as a broker-dealer or a member of NASD,FINRA, and qualified to act as a broker or dealer in the states or other jurisdictions where the nature of its business so requires. Certain Authorized Purchasers may also be regulated under federal and state banking laws and regulations. Each Authorized Purchaser has its own set of rules and procedures, internal controls and information barriers as it determines is appropriate in light of its own regulatory regime.
 
Under the Authorized Purchaser Agreement, the General Partner has agreed to indemnify the Authorized Purchasers against certain liabilities, including liabilities under the Securities Act of 1933, as amended, and to contribute to the payments the Authorized Purchasers may be required to make in respect of those liabilities.
 
The following description of the procedures for the creation and redemption of baskets is only a summary and an investor should refer to the relevant provisions of the LP Agreement and the form of Authorized Purchaser Agreement for more detail, each of which is attached as an exhibit to this annual report on Form 10-K.
 
Creation Procedures
 
On any business day, an Authorized Purchaser may place an order with the Marketing Agent to create one or more baskets. For purposes of processing purchase and redemption orders, a “business day” means any day other than a day when any of the American Stock Exchange,AMEX, the New York Mercantile ExchangeNYMEX or the New York Stock ExchangeNYSE is closed for regular trading. Purchase orders must be placed by 12:00 p.m. New York time or the close of regular trading on the American Stock Exchange,AMEX, whichever is earlier; except in the case of the initial Authorized Purchaser’s or any other Authorized Purchaser’s initial order to purchase one or more Creation Baskets on the first day the baskets are to be offered and sold, when such orders shall be placed by 9:00 a.m. New York time on the day agreed to by the General Partner and the initial Authorized Purchaser. The day on which the Marketing Agent receives a valid purchase order is the purchase order date.
 
By placing a purchase order, an Authorized Purchaser agrees to deposit Treasuries, with USOF,cash, or a combination of Treasuries and cash with USOF, as described below. Prior to the delivery of baskets for a purchase order, the Authorized Purchaser must also have wired to the Custodian the non-refundable transaction fee due for the purchase order. Authorized Purchasers may not withdraw a creation request.
Determination of Required Deposits

The total deposit required to create each basket (“Creation Basket Deposit”) is the amount of Treasuries and/or cash that is in the same proportion to the total assets of USOF (net of estimated accrued but unpaid fees, expenses and other liabilities) on the date the order to purchase is accepted as the number of units to be created under the purchase order is in proportion to the total number of units outstanding on the date the order is received. The General Partner determines, directly in its sole discretion or in consultation with the Administrator, the requirements for Treasuries and the amount of cash, including the maximum permitted remaining maturity of a Treasury and proportions of Treasury and cash that may be included in deposits to create baskets. The Marketing Agent publishes such requirements at the beginning of each business day. The amount of cash deposit required is the difference between the aggregate market value of the Treasuries required to be included in a Creation Basket Deposit as of 4:00 p.m. New York time on the date the order to purchase is properly received and the total required deposit.

Delivery of Required Deposits

An Authorized Purchaser who places a purchase order is responsible for transferring to USOF’s account with the Custodian the required amount of Treasuries and cash by the end of the third business day following the purchase order date. Upon receipt of the deposit amount, the Administrator directs DTC to credit the number of baskets ordered to the Authorized Purchaser’s DTC account on the third business day following the purchase order date. The expense and risk of delivery and ownership of Treasuries until such Treasuries have been received by the Custodian on behalf of USOF shall be borne solely by the Authorized Purchaser.
Because orders to purchase baskets must be placed by 12:00 p.m., New York time, but the total payment required to create a basket during the continuous offering period will not be determined until 4:00 p.m., New York time, on the date the purchase order is received, Authorized Purchasers will not know the total amount of the payment required to create a basket at the time they submit an irrevocable purchase order for the basket. USOF’s NAV and the total amount of the payment required to create a basket could rise or fall substantially between the time an irrevocable purchase order is submitted and the time the amount of the purchase price in respect thereof is determined.
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Rejection of Purchase Orders

The General Partner acting by itself or through the Marketing Agent may reject a purchase order or a Creation Basket Deposit if:

·  it determines that the investment alternative available to USOF at that time will not enable it to meet its investment objective;
·  it determines that the purchase order or the Creation Basket Deposit is not in proper form;
·  it believes that the purchase order or the Creation Basket Deposit would have adverse tax consequences to USOF or its unitholders;
·  the acceptance or receipt of the Creation Basket Deposit would, in the opinion of counsel to the General Partner, be unlawful; or
·  circumstances outside the control of the General Partner, Marketing Agent or Custodian make it, for all practical purposes, not feasible to process creations of baskets.
None of the General Partner, Marketing Agent or Custodian will be liable for the rejection of any purchase order or Creation Basket Deposit.
Redemption Procedures
 
The procedures by which an Authorized Purchaser can redeem one or more baskets mirror the procedures for the creation of baskets. On any business day, an Authorized Purchaser may place an order with the Marketing Agent to redeem one or more baskets. Redemption orders must be placed by 12:00 p.m. New York time or the close of regular trading on the American Stock Exchange,AMEX, whichever is earlier. A redemption order so received will be effective on the date it is received in satisfactory form by the Marketing Agent. The redemption procedures allow Authorized Purchasers to redeem baskets and do not entitle an individual unitholder to redeem any units in an amount less than a basket, or to redeem baskets other than through an Authorized Purchaser. By placing a redemption order, an Authorized Purchaser agrees to deliver the baskets to be redeemed through DTC’s book-entry system to USOF not later than 3:00 p.m. New York time on the third business day following the effective date of the redemption order. Prior to the delivery of the redemption distribution for a redemption order, the Authorized Purchaser must also have wired to USOF’s account at the Custodian the non-refundable transaction fee due for the redemption order. Authorized Purchasers may not withdraw a redemption request.
 
Determination of Redemption Distribution

The redemption distribution from USOF consists of a transfer to the redeeming Authorized Purchaser of an amount of Treasuries and/or cash that is in the same proportion to the total assets of USOF (net of estimated accrued but unpaid fees, expenses and other liabilities) on the date the order to redeem is properly received as the number of units to be redeemed under the redemption order is in proportion to the total number of units outstanding on the date the order is received. The General Partner, directly or in consultation with the Administrator, determines the requirements for Treasuries and the amounts of cash, including the maximum permitted remaining maturity of a Treasury, and the proportions of Treasuries and cash that may be included in distributions to redeem baskets. The Marketing Agent publishes such requirements as of 4:00 p.m. New York time on the redemption order date.

Delivery of Redemption Distribution

The redemption distribution due from USOF will be delivered to the Authorized Purchaser by 3:00 p.m. New York time on the third business day following the redemption order date if, by 3:00 p.m. New York time on such third business day, USOF’s DTC account has been credited with the baskets to be redeemed. If USOF’s DTC account has not been credited with all of the baskets to be redeemed by such time, the redemption distribution will be delivered to the extent of whole baskets received. Any remainder of the redemption distribution will be delivered on the next business day to the extent of remaining whole baskets received if USOF receives the fee applicable to the extension of the redemption distribution date which the General Partner may, from time to time, determine and the remaining baskets to be redeemed are credited to USOF’s DTC account by 3:00 p.m. New York time on such next business day. Any further outstanding amount of the redemption order shall be cancelled. Pursuant to information from the General Partner, the Custodian will also be authorized to deliver the redemption distribution notwithstanding that the baskets to be redeemed are not credited to USOF’s DTC account by 3:00 p.m. New York time on the third business day following the redemption order date if the Authorized Purchaser has collateralized its obligation to deliver the baskets through DTC’s book entry-system on such terms as the General Partner may from time to time determine.

Suspension or Rejection of Redemption Orders

The General Partner may, in its discretion, suspend the right of redemption, or postpone the redemption settlement date, (1) for any period during which the AMEX or the NYMEX is closed other than customary weekend or holiday closings, or trading on the AMEX or the NYMEX is suspended or restricted, (2) for any period during which an emergency exists as a result of which delivery, disposal or evaluation of Treasuries is not reasonably practicable, or (3) for such other period as the General Partner determines to be necessary for the protection of the limited partners. None of the General Partner, the Marketing Agent, the Administrator, or the Custodian will be liable to any person or in any way for any loss or damages that may result from any such suspension or postponement.

The General Partner will reject a redemption order if the order is not in proper form as described in the Authorized Purchaser Agreement or if the fulfillment of the order, in the opinion of its counsel, might be unlawful.
Creation and Redemption Transaction Fee
 
To compensate USOF for its expenses in connection with the creation and redemption of baskets, an Authorized Purchaser is required to pay a transaction fee to USOF of $1,000 per order to create or redeem baskets. An order may include multiple baskets. The transaction fee may be reduced, increased or otherwise changed by the General Partner. The General Partner shall notify DTC of any change in the transaction fee and will not implement any increase in the fee for the redemption of baskets until 30 days after the date of the notice.
 
Tax Responsibility
 
Authorized Purchasers are responsible for any transfer tax, sales or use tax, stamp tax, recording tax, value added tax or similar tax or governmental charge applicable to the creation or redemption of baskets, regardless of whether or not such tax or charge is imposed directly on the Authorized Purchaser, and agree to indemnify the General Partner and USOF if they are required by law to pay any such tax, together with any applicable penalties, additions to tax or interest thereon.
 
Secondary Market Transactions
 
As discussed above, Authorized Purchasers are the only persons that may place orders to create and redeem baskets. Authorized Purchasers must be registered broker-dealers or other securities market participants, such as banks and other financial institutions that are not required to register as broker-dealers to engage in securities transactions. An Authorized Purchaser is under no obligation to create or redeem baskets, and an Authorized Purchaser is under no obligation to offer to the public units of any baskets it does create. Authorized Purchasers that do offer to the public units from the baskets they create will do so at per-unit offering prices that are expected to reflect, among other factors, the trading price of the units on the American Stock Exchange,AMEX, the NAV of USOF at the time the Authorized Purchaser purchased the Creation Baskets and the NAV of the units at the time of the offer of the units to the public, the supply of and demand for units at the time of sale, and the liquidity of the Oil Futures Contract market and the market for Other Oil Interests. The prices of units offered by Authorized Purchasers are expected to fall between USOF’s NAV and the trading price of the units on the American Stock ExchangeAMEX at the time of sale. Units initially comprising the same basket but offered by Authorized Purchasers to the public at different times may have different offering prices. An order for one or more baskets may be placed by an Authorized Purchaser on behalf of multiple clients. Authorized Purchasers who make deposits with USOF in exchange for baskets receive no fees, commissions or other form of compensation or inducement of any kind from either USOF or the General Partner, and no such person has any obligation or responsibility to the General Partner or USOF to effect any sale or resale of units. Units are expected to trade in the secondary market on the American Stock Exchange.AMEX. Units may trade in the secondary market at prices that are lower or higher relative to their NAV per unit. The amount of the discount or premium in the trading price relative to the NAV per unit may be influenced by various factors, including the number of investors who seek to purchase or sell units in the secondary market and the liquidity of the Oil Futures Contracts market and the market for Other Oil Interests. While the units trade on the American Stock ExchangeAMEX until 4:15 p.m. New York time, liquidity in the market for Oil Futures Contracts and Other Oil Interests may be reduced after the close of the New York Mercantile ExchangeNYMEX at 2:30 p.m. New York time. As a result, during this time, trading spreads, and the resulting premium or discount, on the units may widen.
PAST PERFORMANCE IS NOT NECESSARILY INDICATIVE OF FUTURE RESULTS

Month
 
Rates of Return
For the Year 20062007
 
January(6.55%)
February5.63%
March4.61%
April  3.47(4.26%)
May  (2.914.91%)
June  3.169.06%
July  (0.5010.57%)
August  (6.974.95%)
September  (11.7112.11%)
October  (8.4616.98%)
November  4.73(4.82%)
December  (5.218.67%
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The General Partner is also currently the general partner of US12OF, USNG and USG. Each of the General Partner, USNG, US12OF and USG is located in California.

US12OF is a publicly traded limited partnership which seeks to have the changes in percentage terms of  its units’ NAV track the changes in percentage terms of the price of light, sweet crude oil delivered to Cushing, Oklahoma, as measured by the changes in the average of the prices of 12 futures contracts on crude oil traded on the NYMEX, consisting of the near month contract to expire and the contracts for the following 11 months for a total of 12 consecutive months’ contracts, except when the near month contract is within two weeks of expiration, in which case it will be measured by the futures contracts that are the next month contract to expire and the contracts for the following 11 consecutive months, less US12OF’s expenses.  US12OF invests in a mixture of listed crude oil futures contracts, other non-listed oil related investments, Treasuries, cash and cash equivalents.  US12OF began trading on the AMEX on December 6, 2007 and is a continuous offering.  As of December 31, 2007, the total amount of money raised by US12OF from Authorized Purchasers was $20,127,316; the total number of Authorized Purchasers was 2; the number of baskets purchased by Authorized Purchasers was 4; and the aggregate amount of units purchased was 400,000.

USNG is a publicly traded limited partnership which seeks to have the changes in percentage terms of its unit’s NAV track the changes in percentage terms of the price of natural gas delivered at the Henry Hub, Louisiana as measured by the futures contract on natural gas traded on the NYMEX, less USNG's expenses. USNG invests in a mixture of listed natural gas futures contracts, other natural gas related investments, Treasuries, cash and cash equivalents. USNG began trading on the AMEX on April 18, 2007 and is a continuous offering.  As of December 31, 2007, the total amount of money raised by USNG from Authorized Purchasers was $1,458,787,976; the total number of Authorized Purchasers was 4; the number of baskets purchased by Authorized Purchasers was 379; and the aggregate amount of units purchased was 37,900,000.
USG is a publicly traded limited partnership which seeks to have the changes in percentage terms of its units’ NAV track the changes in percentage terms of the price of unleaded gasoline delivered to the New York harbor, as measured by the changes in the price of the futures contract on gasoline traded on the NYMEX, less USG’s expenses.  USG invests in a mixture of listed gasoline futures contracts, other gasoline related investments, Treasuries, cash and cash equivalents.  USG began trading on the AMEX on February 26, 2008 and is a continuous offering.  During the year ended December 31, 2007, USG had not yet commenced investment activities nor issued units.
Since the offering of US12OF units to the public on December 6, 2007 to December 31, 2007, the simple average daily change in its benchmark oil futures contract was 0.480%, while the simple average daily change in the NAV of US12OF over the same time period was 0.489%. The average daily difference was 0.009% (or 0.9 basis point, where 1 basis point equals 1/100 of 1%). As a percentage of the daily movement of the benchmark oil futures contract, the average error in daily tracking by the NAV was 2.651%, meaning that over this time period US12OF’s tracking error was within the plus or minus 10% range established as its benchmark tracking goal.

Since the offering of USNG units to the public on April 18, 2007 to December 31, 2007, the simple average daily change in its benchmark futures contract was -0.154%, while the simple average daily change in the NAV of USNG over the same time period was -0.143%. The average daily difference was 0.012% (or 1.2 basis points, where 1 basis point equals 1/100 of 1% ). As a percentage of the daily movement of the benchmark futures contract, the average error in daily tracking by the NAV was 1.994%, meaning that over this time period USNG’s tracking error was within the plus or minus 10% range established as its benchmark tracking goal.

There are significant differences between investing in US12OF and USNG and investing directly in the futures market. The General Partner’s results with US12OF and USNG may not be representative of results that may be experienced with a fund directly investing in futures contracts or other managed funds investing in futures contracts. For more information on the performance of US12OF and USNG, see the Performance Tables below.  Since USG did not commence investment activities nor issue units during the year ended December 31, 2007, performance information has not been included for USG.
PAST PERFORMANCE IS NOT NECESSARILY INDICATIVE OF FUTURE RESULTS
Experience in Raising and Investing in Funds through December 31, 2007

Dollar Amount Offered in US12OF Offering*: $550,000,000 
Dollar Amount Raised in US12OF Offering: $20,127,316 
Organizational Expenses in US12OF Offering:    
SEC registration fee**: $16,885 
FINRA registration fee**: $75,500 
AMEX listing fee**: $5,000 
Auditor’s fees and expenses**: $10,700 
Legal fees and expenses**: $233,799 
Printing expenses**: $23,755 
Length of US12OF offering: Continuous 

*Reflects the offering price per unit set forth on the cover page of the registration statement registering such units filed with the SEC.
**These expenses were paid for by the General Partner.

Dollar Amount Offered in USNG Offering*: $3,664,500,000 
Dollar Amount Raised in USNG Offering: $1,458,787,976 
Organizational Expenses in USNG Offering:    
SEC registration fee**: $104,010 
FINRA registration fee**: $151,000 
AMEX listing fee**: $5,000 
Auditor’s fees and expenses**: $29,000 
Legal fees and expenses**: $526,746 
Printing expenses**: $40,323 
Length of USNG offering: Continuous 

*Reflects the offering price per unit set forth on the cover page of the registration statement registering such units filed with the SEC.
**These expenses were paid for by the General Partner and USNG.
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Compensation to the General Partner and Other Compensation

US12OF:
Expenses Paid by US12OF through December 31, 2007 in dollar terms (unaudited):

Expense Amount in Dollar Terms 
Amount Paid to General Partner in US12OF Offering: $8,790 
Amount Paid in Portfolio Brokerage Commissions in US12OF offering: $892 
Other Amounts Paid in US12OF Offering: $3,479 
Total Expenses Paid in US12OF Offering: $13,161 

Expenses Paid by US12OF through December 31, 2007 as a Percentage of Average Daily Net Assets (unaudited):

Expenses in US12OF Offering:
Amount As a Percentage of Average Daily Net Assets
General Partner:0.60% annualized
Portfolio Brokerage Commissions:0.06% annualized
Other Amounts Paid in US12OF Offering0.24% annualized
Total Expense Ratio:0.90% annualized
US12OF Performance:   
Name of Commodity Pool: US12OF 
Type of Commodity Pool: Exchange traded security 
Inception of Trading: December 6, 2007 
Aggregate Subscriptions (from inception through December 31, 2007): $20,126,316 
Total Net Assets as of December 31, 2007: $21,691,479 
Initial NAV Per Unit as of Inception: $50.00 
NAV per Unit as of December 31, 2007: $54.23 
Worst Monthly Percentage Draw-down:  N/A 
Worst Peak-to-Valley Draw-down:  N/A 
USNG:
Expenses Paid by USNG through December 31, 2007 in dollar terms (unaudited):

Expense Amount in Dollar Terms 
Amount Paid to General Partner in USNG Offering: $1,239,862 
Amount Paid in Portfolio Brokerage Commissions in USNG offering: $351,310 
Other Amounts Paid in USNG Offering: $454,149 
Total Expenses Paid in USNG Offering: $2,045,321 

Expenses Paid by USNG through December31, 2007 as a Percentage of Average Daily Net Assets (unaudited):

Expenses in USNG Offering:Amount As a Percentage of Average Daily Net Assets
General Partner:0.60% annualized
Portfolio Brokerage Commissions:0.17% annualized
Other Amounts Paid in USNG Offering0.22% annualized
Total Expense Ratio:0.99% annualized
USNG Performance:   
Name of Commodity Pool: USNG 
Type of Commodity Pool: Exchange traded security 
Inception of Trading: April 18, 2007 
Aggregate Subscriptions (from inception through December 31, 2007): $1,458,786,977 
Total Net Assets as of December 31, 2007: $593,394,981 
Initial NAV Per Unit as of Inception: $50.00 
NAV per Unit as of December 31, 2007: $36.18 
Worst Monthly Percentage Draw-down:  November 2007 (16.16%) 
Worst Peak-to-Valley Draw-down:  April 2007 - August 2007 (34.74%) 
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COMPOSITE PERFORMANCE DATA FOR US12OF
PAST PERFORMANCE IS NOT NECESSARILY INDICATIVE OF FUTURE RESULTS

MonthRates of Return For the Year 2007
December*8.46%
Annual Rate of Return (through December 31, 2007)8.46%
* Partial from December 6, 2007.

COMPOSITE PERFORMANCE DATA FOR USNG
PAST PERFORMANCE IS NOT NECESSARILY INDICATIVE OF FUTURE RESULTS
MonthRates of Return For the Year 2007
April*
4.30%
May(0.84)%
June(15.90)%
July(9.68)%
August(13.37)%
September12.28%
        October12.09%
        November(16.16)%
        December0.75%
Annual Rate of Return (through December 31, 2007)(27.64)%
* Partial from April 17, 2007.

Draw-down: Losses experienced by a pool or trading program over a specified period. Draw-down is measured on the basis of monthly returns only and does not reflect intra-month figures.

Worst Monthly Percentage Draw-down: The largest single month loss sustained since inception of trading.

Worst Peak-to-Valley Draw-down: The largest percentage decline in the NAV per unit over the history of a pool or trading program.the fund. This need not be a continuous decline, but can be a series of positive and negative returns where the negative returns are larger than the positive returns.  Worst Peak-to-Valley Draw-down represents the greatest percentage decline from any month-end NAV per unit that occurs without such month-end NAV per unit being equaled or exceeded as of a subsequent month-end. For example, if the NAV per unit declined by $1 in each of January and February, increased by $1 in March and declined again by $2 in April, a “peak-to-trough drawdown” analysis conducted as of the end of April would consider that “drawdown” to be still continuing and to be $3 in amount, whereas if the NAV per unit had increased by $2 in March, the January-February drawdown would have ended as of the end of February at the $2 level.

In addition, Nicholas Gerber, the president and CEO of the General Partner, ran the Marc Stevens Futures Index Fund over 10 years ago. This fund combined commodity futures with equity stock index futures. It was a very small private offering, which had under $1 million in assets. The Marc Stevens Futures Index Fund was a commodity pool and Mr. Gerber was the CPO. Ameristock Corporation is an affiliate of the General Partner and it is a California-based registered investment advisor registered under the Investment AdvisorsAdvisers Act of 1940, as amended (the "Advisers Act") that has been sponsoring and providing portfolio management services to mutual funds since 1995. Ameristock Corporation is the investment adviser to the Ameristock Mutual Fund, Inc., a mutual fund registered under the Investment Company Act of 1940, as amended (the "1940 Act") that focuses on large cap U.S. equities that has approximately $600$425 million in assets.assets as of December 31, 2007. Ameristock Corporation is also the investment advisor to the Ameristock ETF Trust, an open-end management investment company registered under the 1940 Act that seeks investment results that correspond to the performance of U.S. Treasury indices owned and compiled by Ryan Holdings LLC and Ryan ALM, Inc.
Investments
 
The General Partner applies substantially all of USOF’s assets toward trading in Oil Futures Contracts and otherOther Oil Interests, Treasuries, cash andand/or cash equivalents. The General Partner has sole authority to determine the percentage of assets that are:
 
 
·
held on deposit with the futures commission merchant or other custodian,
 
·
used for other investments, and
 
·
held in bank accounts to pay current obligations and as reserves.
 
The General Partner deposits substantially all of USOF’s net assets with the futures commission merchant or other custodian for trading. When USOF purchases an Oil Futures Contract and certain exchange traded Other Oil Interests, USOF is required to deposit with the selling futures commission merchant on behalf of the exchange a portion of the value of the contract or other interest as security to ensure payment for the obligation under oil interests at maturity. This deposit is known as “margin.” USOF invests the remainder of its assets equal to the difference between the margin deposited and the face value of the futures contract in Treasuries, cash andand/or cash equivalents.
 
The General Partner believes that all entities that hold or trade USOF’s assets are based in the United States and are subject to United States regulations.
 
Approximately 5% to 10% of USOF’s assets have normally been committed as margin for commodity futures contracts.Futures Contracts. However, from time to time, the percentage of assets committed as margin may be substantially more, or less, than such range. The General Partner invests the balance of USOF’s assets not invested in oil interests or held in margin as reserves to be available for changes in margin. All interest income is used for USOF’s benefit.
 
The futures commission merchant, a government agency or a commodity exchange could increase margins applicable to USOF to hold trading positions at any time. Moreover, margin is merely a security deposit and has no bearing on the profit or loss potential for any positions taken.
 
USOF’s assets are held in segregation pursuant to the Commodity Exchange ActCEA and CFTC regulations.
The Commodity Interest Markets
 
General
 
The Commodity Exchange Act or CEA governs the regulation of commodity interest transactions, markets and intermediaries. In December 2000, the CEA was amended by the Commodity Futures Modernization Act of 2000 or CFMA,(the "CFMA"), which substantially revised the regulatory framework governing certain commodity interest transactions and the markets on which they trade. The CEA, as amended by the CFMA, now provides for varying degrees of regulation of commodity interest transactions depending upon the variables of the transaction. In general, these variables include (1) the type of instrument being traded (e.g., contracts for future delivery, options, swaps or spot contracts), (2) the type of commodity underlying the instrument (distinctions are made between instruments based on agricultural commodities, energy and metals commodities and financial commodities), (3) the nature of the parties to the transaction (retail, eligible contract participant, or eligible commercial entity), (4) whether the transaction is entered into on a principal-to-principal or intermediated basis, (5) the type of market on which the transaction occurs, and (6) whether the transaction is subject to clearing through a clearing organization. Information regarding commodity interest transactions, markets and intermediaries, and their associated regulatory environment, is provided below.
 
Futures Contracts
 
A futures contract such as an Oil Futures Contract is a standardized contract traded on, or subject to the rules of, an exchange that calls for the future delivery of a specified quantity and type of a commodity at a specified time and place. Futures contracts are traded on a wide variety of commodities, including agricultural products, bonds, stock indices, interest rates, currencies, energy and metals. The size and terms of futures contracts on a particular commodity are identical and are not subject to any negotiation, other than with respect to price and the number of contracts traded between the buyer and seller.
 
The contractual obligations of a buyer or seller may generally be satisfied by taking or making physical delivery of the underlying of commodity or by making an offsetting sale or purchase of an identical futures contract on the same or linked exchange before the designated date of delivery. The difference between the price at which the futures contract is purchased or sold and the price paid for the offsetting sale or purchase, after allowance for brokerage commissions, constitutes the profit or loss to the trader. Some futures contracts, such as stock index contracts, settle in cash (reflecting the difference between the contract purchase/sale price and the contract settlement price) rather than by delivery of the underlying commodity.
 
In market terminology, a trader who purchases a futures contract is long in the market and a trader who sells a futures contract is short in the market. Before a trader closes out his long or short position by an offsetting sale or purchase, his outstanding contracts are known as open trades or open positions. The aggregate amount of open positions held by traders in a particular contract is referred to as the open interest in such contract.
 
Forward Contracts
 
A forward contract is a contractual obligation to purchase or sell a specified quantity of a commodity at or before a specified date in the future at a specified price and, therefore, is economically similar to a futures contract. Unlike futures contracts, however, forward contracts are typically traded in the over-the-counter markets and are not standardized contracts. Forward contracts for a given commodity are generally available for various amounts and maturities and are subject to individual negotiation between the parties involved. Moreover, generally there is no direct means of offsetting or closing out a forward contract by taking an offsetting position as one would a futures contract on a U.S. exchange. If a trader desires to close out a forward contract position, he generally will establish an opposite position in the contract but will settle and recognize the profit or loss on both positions simultaneously on the delivery date. Thus, unlike in the futures contract market where a trader who has offset positions will recognize profit or loss immediately, in the forward market a trader with a position that has been offset at a profit will generally not receive such profit until the delivery date, and likewise a trader with a position that has been offset at a loss will generally not have to pay money until the delivery date. In recent years, however, the terms of forward contracts have become more standardized, and in some instances such contracts now provide a right of offset or cash settlement as an alternative to making or taking delivery of the underlying commodity.
 
Further, as the result of the CFMA, over-the-counter derivative instruments such as forward contracts and swap agreements (and options on forwards and physical commodities) may begin to be traded on lightly-regulated exchanges or electronic trading platforms that may, but are not required to, provide for clearing facilities. Exchanges and electronic trading platforms on which over-the-counter instruments may be traded and the regulation and criteria for that trading are more fully described below under “Futures Exchanges and Clearing Organizations.” Nonetheless, absent a clearing facility, USOF’s trading in foreign exchange and other forward contracts is exposed to the creditworthiness of the counterparties on the other side of the trade.

Options on Futures Contracts
 
Options on futures contracts are standardized contracts traded on an exchange. An option on futures contract gives the buyer of the option the right, but not the obligation, to take a position at a specified price (the striking, strike, or exercise price) in the underlying futures contract or underlying interest. The buyer of a call option acquires the right, but not the obligation, to purchase or take a long position in the underlying interest, and the buyer of a put option acquires the right, but not the obligation, to sell or take a short position in the underlying interest.
 
The seller, or writer, of an option is obligated to take a position in the underlying interest at a specified price opposite to the option buyer if the option is exercised. Thus, the seller of a call option must stand ready to take a short position in the underlying interest at the strike price if the buyer should exercise the option. The seller of a put option, on the other hand, must stand ready to take a long position in the underlying interest at the strike price.
 
A call option is said to be in-the-money if the strike price is below current market levels and out-of-the-money if the strike price is above current market levels. Conversely, a put option is said to be in-the-money if the strike price is above the current market levels and out-of-the-money if the strike price is below current market levels.
 
Options have limited life spans, usually tied to the delivery or settlement date of the underlying interest. Some options, however, expire significantly in advance of such date. The purchase price of an option is referred to as its premium, which consists of its intrinsic value (which is related to the underlying market value) plus its time value. As an option nears its expiration date, the time value shrinks and the market and intrinsic values move into parity. An option that is out-of-the-money and not offset by the time it expires becomes worthless. On certain exchanges, in-the-money options are automatically exercised on their expiration date, but on others unexercised options simply become worthless after their expiration date.
 
Regardless of how much the market swings, the most an option buyer can lose is the option premium. The option buyer deposits his premium with his broker, and the money goes to the option seller. Option sellers, on the other hand, face risks similar to participants in the futures markets. For example, since the seller of a call option is assigned a short futures position if the option is exercised, his risk is the same as someone who initially sold a futures contract. Because no one can predict exactly how the market will move, the option seller posts margin to demonstrate his ability to meet any potential contractual obligations.

Options on Forward Contracts or Commodities
 
Clearing organizations provide services designed to mutualize or transfer the credit risk arising from the trading of contracts on an exchange or other electronic trading facility. Once trades made between members of an exchange or electronic trading facility have been confirmed, the clearing organization becomes substituted for the clearing member acting on behalf of each buyer and each seller of contracts traded on the exchange or trading platform and in effect becomes the other party to the trade. Thereafter, each clearing member party to the trade looks only to the clearing organization for performance. The clearing organization generally establishes some sort of security or guarantee fund to which all clearing members of the exchange must contribute; this fund acts as an emergency buffer that is intended to enable the clearing organization to meet its obligations with regard to the other side of an insolvent clearing member’s contracts. Furthermore, the clearing organization requires margin deposits and continuously marks positions to market to provide some assurance that its members will be able to fulfill their contractual obligations. Thus, a central function of the clearing organization is to ensure the integrity of trades, and members effecting transactions on an exchange need not concern themselves with the solvency of the party on the opposite side of the trade; their only remaining concerns are the respective solvencies of their own customers, their clearing broker and the clearing organization. The clearing organizations do not deal with customers, but only with their member firms and the guarantee of performance for open positions provided by the clearing organization does not run to customers.
The CFTC and U.S. designated contract markets have established accountability levels and position limits on the maximum net long or net short futures contracts in commodity interests that any person or group of persons under common trading control (other than a hedgor, which USOF is not) may hold, own or control. Among the purposes of accountability levels and position limits is to prevent a corner or squeeze on a market or undue influence on prices by any single trader or group of traders. The position limits currently established by the CFTC apply to certain agricultural commodity interests, such as grains (oats, barley, and flaxseed), soybeans, corn, wheat, cotton, eggs, rye, and potatoes, but not to interests in energy products. In addition, U.S. exchanges may set accountability levels and position limits for all commodity interests traded on that exchange. For example, the current accountability level for investments at any one time in Oil Futures Contracts (including investments in the Benchmark Oil Futures Contract) on the New York Mercantile ExchangeNYMEX is 20,000 contracts. The New York Mercantile ExchangeNYMEX also imposes position limits on contracts held in the last few days of trading in the near month contract to expire. Certain exchanges or clearing organizations also set limits on the total net positions that may be held by a clearing broker. In general, no position limits are in effect in forward or other over-the-counter contract trading or in trading on non-U.S. futures exchanges, although the principals with which USOF and the clearing brokers may trade in such markets may impose such limits as a matter of credit policy. For purposes of determining accountability levels and position limits USOF’s commodity interest positions will not be attributable to investors in their own commodity interest trading.
Most U.S. futures exchanges (but generally not non-U.S. exchanges) may limit the amount of fluctuation in some futures contract or options on a futures contract prices during a single trading day by regulations. These regulations specify what are referred to as daily price fluctuation limits or more commonly, daily limits. The daily limits establish the maximum amount that the price of a futures or options on futures contract may vary either up or down from the previous day’s settlement price. Once the daily limit has been reached in a particular futures or options on futures contract, no trades may be made at a price beyond the limit. Positions in the futures or options contract may then be taken or liquidated, if at all, only at inordinate expense or if traders are willing to effect trades at or within the limit during the period for trading on such day. Because the daily limit rule governs price movement only for a particular trading day, it does not limit losses and may in fact substantially increase losses because it may prevent the liquidation of unfavorable positions. Futures contract prices have occasionally moved to the daily limit for several consecutive trading days, thus preventing prompt liquidation of positions and subjecting the trader to substantial losses for those days. The concept of daily price limits is not relevant to over-the-counter contracts, including forwards and swaps, and thus such limits are not imposed by banks and others who deal in those markets.
Risk Factors.
 
·
no commercially productive crude oil or natural gas reservoirs may be found;
 
·
crude oil and natural gas drilling and production activities may be shortened, delayed or canceled;
 
·
the ability of an oil producer to develop, produce and market reserves may be limited by:
 
·
decisions of the cartel of oil producing countries ( e.g. , OPEC, the Organization of the Petroleum Exporting Countries)OPEC), to produce more or less oil;
 
·
increases in oil production due to price rises may make it more economical to extract oil from additional sources and may later temper further oil price increases; and
 
·
economic activity of users, as certain economies’ expand, oil consumption increases ( e.g. , China, India) and as economies contract (in a recession or depression), oil demand and prices fall.
 
·
USOF (i) may not be able to buy/sell the exact amount of Oil Futures Contracts and Other Oil Interests to have a perfect correlation with NAV; (ii) may not always be able to buy and sell Oil Futures Contracts or Other Oil Interests at the market price; (iii) may not experience a perfect correlation between the spot price of WTI light, sweet crude oil and the underlying investments in Oil Futures Contracts and Other Oil Interests and Treasuries, cash andand/or cash equivalents; and (iv) is required to pay brokerage fees and  the management fee, which will have an effect on the correlation.
 
·
Short-term supply and demand for WTI light, sweet crude oil may cause the market price of the changes in the Benchmark Oil Futures Contract to vary from changes in USOF’s NAV if USOF has fully invested in Oil Futures Contracts that do not reflect such supply and demand and it is unable to replace such contracts with Oil Futures Contracts that do reflect such supply and demand. In addition, there are also technical differences between the two markets, e.g., one is a physical market while the other is a futures market traded on exchanges, that may cause variations between the spot price of crude oil and the prices of related futures contracts.
 
·
USOF plans to buy only as many Oil Futures Contracts and Other Oil Interests that it can to get the changes in the NAV as close as possible to the price of the changes in Benchmark Oil Futures Contract. The remainder of its assets will be invested in Treasuries, cash andand/or cash equivalents and will be used to satisfy initial margin and additional margin requirements, if any, and to otherwise support its investments in oil interests. Investments in Treasuries, cash andand/or cash equivalents, both directly and as margin, will provide rates of return that will vary from changes in the value of the spot price of WTI light, sweet crude oil and the price of the Benchmark Oil Futures Contract.
 
·
In addition, because USOF incurs certain expenses in connection with its investment activities, and holds most of its assets in more liquid short-term securities for margin and other liquidity purposes and for redemptions that may be necessary on an ongoing basis, the General Partner is generally not able to fully invest USOF’s assets in Oil Futures Contracts or Other Oil Interests and there cannot be perfect correlation between changes in USOF’s NAV and the changes in the price of the Benchmark Oil Futures Contract.
 
·
As USOF grows, there may be more or less correlation. For example, if USOF only has enough money to buy three Benchmark Oil Futures Contracts and it needs to buy four contracts to track the price of oil then the correlation will be lower, but if it buys 20,000 Benchmark Oil Futures Contracts and it needs to buy 20,001 contracts then the correlation will be higher. At certain asset levels, USOF may be limited in its ability to purchase the Benchmark Oil Futures Contract or other Oil Futures Contracts due to accountability levels imposed by the relevant exchanges. To the extent that USOF invests in these other Oil Futures Contracts or Other Oil Interests, the correlation with the Benchmark Oil Futures Contracts may be lower. If USOF is required to invest in other Oil Futures Contracts and Other Oil Interests that are less correlated with the Benchmark Oil Futures Contract, USOF would likely invest in over-the-counter contracts to increase the level of correlation of USOF’s assets. Over-the-counter contracts entail certain risks described below under “Over-the-Counter Contract Risk.”
 
·
USOF may not be able to buy the exact number of Oil Futures Contracts and Other Oil Interests to have a perfect correlation with the Benchmark Oil Futures Contract if the purchase price of Oil Futures Contracts required to be fully invested in such contracts is higher than the proceeds received for the sale of a Creation Basket on the day the basket was sold. In such case, USOF could not invest the entire proceeds from the purchase of the Creation Basket in such futures contracts (for example, assume USOF receives $6,679,000 for the sale of a Creation Basket and assume that the price of an Oil Futures Contract for WTI light, sweet crude oil is $66,800, then USOF could only invest in only 99 Oil Futures Contracts with an aggregate value of $6,613,200). USOF would be required to invest a percentage of the proceeds in Treasuries to be deposited as margin with the futures commission merchant through which the contract was purchased. The remainder of the purchase price for the Creation Basket would remain invested in cash and Treasuries as determined by the General Partner from time to time based on factors such as potential calls for margin or anticipated redemptions. If the trading market for Oil Futures Contracts is suspended or closed, USOF may not be able to purchase these investments at the last reported price for such investments.
 
If the nature of hedgors and speculators in futures markets has shifted such that crude oil purchasers are the predominant hedgors in the market, USOF might have to reinvest at higher futures prices or choose Other Oil Interests.
 
The changing nature of the hedgors and speculators in the crude oil market influences whether futures prices are above or below the expected future spot price. In order to induce speculators to take the corresponding long side of the same futures contract, crude oil producers must generally be willing to sell futures contracts at prices that are below expected future spot prices. Conversely, if the predominant hedgors in the futures market are the purchasers of the crude oil who purchase futures contracts to hedge against a rise in prices, then speculators will only take the short side of the futures contract if the futures price is greater than the expected future spot price of crude oil. This can have significant implications for USOF when it is time to reinvest the proceeds from a maturing futures contract into a new futures contract.
 
While USOF does not intend to take physical delivery of oil under Oil Futures Contracts, physical delivery under such contracts impacts the value of the contracts.
 
While USOF has not and does not intend to take physical delivery of oil under its Oil Futures Contracts, futures contracts are not required to be cash-settled, and it is possible to take delivery under these contracts. Storage costs associated with purchasing oil could result in costs and other liabilities that could impact the value of Oil Futures Contracts or Other Oil Interests. Storage costs include the time value of money invested in oil as a physical commodity plus the actual costs of storing the oil less any benefits from ownership of oil that are not obtained by the holder of a futures contract. In general, Oil Futures Contracts have a one-month delay for contract delivery and the back month (the back month is any future delivery month other than the spot month) includes storage costs. To the extent that these storage costs change for oil while USOF holds Oil Futures Contracts or Other Oil Interests, the value of the Oil Futures Contracts or Other Oil Interests, and therefore USOF’s NAV, may change as well.
36

The price relationship between the near month contract and the next to near month contract that compose the Benchmark Oil Futures Contract will vary and may impact both the total return over time of USOF’s NAV, as well as the degree to which its total return tracks other natural gascrude oil price indices’ total returns.
 
The design of USOF's  Benchmark Oil Futures Contract is such that every month it begins by using the near month contract to expire until the near month contract is within two weeks of expiration, when it will use the next month contract to expire as its benchmark contract and keeps that contract as its benchmark until it becomes the near month contract and close to expiration. In the event of an oil futures market where near month contracts trade at a higher price than next to near month contracts, a situation described as “backwardation” in the futures market occurs. Absent the impact of the overall movement in crude oil prices the value of the benchmark contract would tend to rise as it approaches expiration. As a result the total return of the Benchmark Oil Futures Contract would tend to track higher. Conversely, in the event of ana crude oil futures market where near month contracts trade at a lower price than next to near month contracts, a situation described as “contango” in the futures market occurs. Absent the impact of the overall movement in crude oil prices the value of the benchmark contract would tend to decline as it approaches expiration. As a result the total return of the Benchmark Oil Futures Contract would tend to track lower. When compared to total return of other price indices, such as the spot price of crude oil, the impact of backwardation and contango may lead the total return of USOF’s NAV to vary significantly. In the event of a prolonged period of contango, and absent the impact of rising or falling oil prices, this could have a significant negative impact on USOF’s NAV and total return.  
 
Regulation of the commodity interests and energy markets is extensive and constantly changing; future regulatory developments are impossible to predict but may significantly and adversely affect USOF.
 
The regulation of commodity interest transactions in the United States is a rapidly changing area of law and is subject to ongoing modification by government and judicial action. In addition, various national governments have expressed concern regarding the disruptive effects of speculative trading in the energy markets and the need to regulate the derivatives markets in general. The effect of any future regulatory change on USOF is impossible to predict, but could be substantial and adverse.
 
In managing and directing the day-to-day activities and affairs of USOF, the General Partner relies heavily on Mr.Messrs. Nicholas Gerber, Mr. John Love and Mr. John Hyland (all discussed in greater detail below).Hyland. If Mr.Messrs. Gerber, Mr. Love or Mr. Hyland were to leave or be unable to carry out their present responsibilities, it may have an adverse effect on the management of USOF. Furthermore, Mr.Messrs. Gerber, Mr. Love and Mr. Hyland are currently involved in the management of USNG. USNG, US12OF and USG, and the General Partner is expected to be a public commodity pool designed to trackcurrently in the price movementsprocess of natural gas. Mr.registering two other exchange traded security funds, USHO and US12NG.  Messrs. Gerber and Mr. Love are also employed by Ameristock Corporation, a registered investment adviser that manages a public mutual fund. USOF estimatesIt is estimated that Mr. Gerber will spend approximately 50% of his time on USOF, USNG, USHO, USG, US12OF and USNG matters,US12NG matters.  Mr. Love will spend approximately 70%95% of his time on USOF, USNG, USHO, USG, US12OF and USNGUS12NG matters and Mr. Hyland will spend approximately 50%75% of his time on USOF, USNG, USHO, USG, US12OF and USNGUS12NG matters. To the extent that the General Partner establishes additional funds, even greater demands will be placed on Messrs. Gerber, Love and Hyland, as well as the other officers of the General Partner, including Mr. Mah, the Chief Financial Officer, and its Board of Directors.
The General Partner serves as the general partner to botheach of USOF, USNG, US12OF and USNG.USG and will serve as the general partner for USHO and US12NG, if such other funds offer their securities to the public or begin operations. The General Partner may have a conflict to the extent that its trading decisions for USOF may be influenced by the effect they would have on USNG.the other funds it manages. These trading decisions may be influenced since the General Partner also serves as the general partner for USNGall of the funds and is required to meet USNG’sall of the funds’ investment objectiveobjectives as well as USOF’s. If the General Partner believes that a trading decision it made on behalf of USOF might (i) impede USNGits other funds from reaching itstheir investment objective,objectives, or (ii) improve the likelihood of meeting USNG’s objective,its other funds’ objectives, then the General Partner may choose to change its trading decision for USOF, which could either impede or improve the opportunity for USOF from meeting its investment objective. In addition, the General Partner is required to indemnify the officers and directors of USNG,its other funds if the need for indemnification arises. This potential indemnification will cause the General Partner’s assets to decrease. If the General Partner’s other sources of income are not sufficient to compensate for the indemnification, then the General Partner may terminate and investorsyou could lose theiryour investment.
 
The General Partner may manage a large amount of assets and this could affect USOF’s ability to trade profitably.
 
Increases in assets under management may affect trading decisions. In general, the General Partner does not intend to limit the amount of assets of USOF that it may manage. The more assets the General Partner manages, the more difficult it may be for it to trade profitably because of the difficulty of trading larger positions without adversely affecting prices and performance and of managing risk associated with larger positions.
 
USOF could terminate at any time and cause the liquidation and potential loss of an investor's investment and could upset the overall maturity and timing of an investor's investment portfolio.
 
USOF may terminate at any time, regardless of whether USOF has incurred losses, subject to the terms of the LP Agreement. In particular, unforeseen circumstances, including the death, adjudication of incompetence, bankruptcy, dissolution, or removal of the General Partner could cause USOF to terminate unless a majority interest of the limited partners within 90 days of the event elects to continue the partnership and appoints a successor general partner, or the affirmative vote of a majority interest of the limited partners subject to certain conditions. However, no level of losses will require the General Partner to terminate USOF. USOF’s termination would cause the liquidation and potential loss of an investor's investment. Termination could also negatively affect the overall maturity and timing of an investor's investment portfolio.
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Limited partners may not have limited liability in certain circumstances, including potentially having liability for the return of wrongful distributions.
 
Under Delaware law, a limited partner might be held liable for our obligation as if it were a General Partner if the limited partner participates in the control of the partnership’s business and the persons who transact business with the partnership think the limited partner is the General Partner.
 
A limited partner will not be liable for assessments in addition to its initial capital investment in any of our capital securities representing limited partnership interests.units. However, a limited partner may be required to repay to us any amounts wrongfully returned or distributed to it under some circumstances. Under Delaware law, we may not make a distribution to limited partners if the distribution causes our liabilities (other than liabilities to partners on account of their partnership interests and nonrecourse liabilities) to exceed the fair value of our assets. Delaware law provides that a limited partner who receives such a distribution and knew at the time of the distribution that the distribution violated the law will be liable to the limited partnership for the amount of the distribution for three years from the date of the distribution.
 
With adequate notice, a limited partner may be required to withdraw from the partnership for any reason.
 
If the General Partner gives at least fifteen (15) days’ written notice to a limited partner, then the General Partner may for any reason, in its sole discretion, require any such limited partner to withdraw entirely from the partnership or to withdraw a portion of his partner capital account. The General Partner may require withdrawal even in situations where the limited partner has complied completely with the provisions of the LP Agreement.
 
USOF’s existing units are, and any units USOF issues in the future will be, subject to restrictions on transfer. Failure to satisfy these requirements will preclude a transferee from being able to have all the rights of a limited partner.
 
No transfer of any unit or interest therein may be made if such transfer would (a) violate the then applicable federal or state securities laws or rules and regulations of the SEC, any state securities commission, the CFTC or any other governmental authority with jurisdiction over such transfer, or (b) cause USOF to be taxable as a corporation or affect USOF’s existence or qualification as a limited partnership. In addition, investors may only become limited partners if they transfer their units to purchasers that meet certain conditions outlined in the LP Agreement, which provides that each record holder or limited partner or unitholder applying to become a limited partner (each a record holder) may be required by the General Partner to furnish certain information, including that holder’s nationality, citizenship or other related status. A transferee who is not a U.S. resident may not be eligible to become a record holder or a limited partner if its ownership would subject USOF to the risk of cancellation or forfeiture of any of its assets under any federal, state or local law or regulation. All purchasers of USOF’s units, who wish to become limited partners or record holders, and receive cash distributions, if any, or have certain other rights, must deliver an executed transfer application in which the purchaser or transferee must certify that, among other things, he, she or it agrees to be bound by USOF’s LP Agreement and is eligible to purchase USOF’s securities. Any transfer of units will not be recorded by the transfer agent or recognized by us unless a completed transfer application is delivered to the General Partner or the Administrator. A person purchasing USOF’s existing units, who does not execute a transfer application and certify that the purchaser is eligible to purchase those securities acquires no rights in those securities other than the right to resell those securities. Whether or not a transfer application is received or the consent of the General Partner obtained, our units will be securities and will be transferable according to the laws governing transfers of securities. See “Transfer of Units.”
Third parties may utilize USOF’s intellectual property or technology, including the use of its business methods, trademarks and trading program software, without permission. The General Partner has a patent pending for USOF’s business method and it is registering its trademarks. USOF does not currently have any proprietary software. However, if it obtains proprietary software in the future, then any unauthorized use of USOF’s proprietary software and other technology could also adversely affect its competitive advantage. USOF may have difficulty monitoring unauthorized uses of its patents, trademarks, proprietary software and other technology. Also, third parties may independently develop business methods, trademarks or proprietary software and other technology similar to that of the General Partner or claim that the General Partner has violated their intellectual property rights, including their copyrights, trademark rights, trade names, trade secrets and patent rights. As a result, the General Partner may have to litigate in the future to protect its trade secrets, determine the validity and scope of other parties’ proprietary rights, defend itself against claims that it has infringed or otherwise violated other parties’ rights, or defend itself against claims that its rights are invalid. Any litigation of this type, even if the General Partner is successful and regardless of the merits, may result in significant costs, divert its resources from USOF, or require it to change its proprietary software and other technology or enter into royalty or licensing agreements. See "Legal Risks" below.
 
USOF may experience substantial losses on transactions if the computer or communications system fails.
 
USOF’s trading activities, including its risk management, depend on the integrity and performance of the computer and communications systems supporting them. Extraordinary transaction volume, hardware or software failure, power or telecommunications failure, a natural disaster or other catastrophe could cause the computer systems to operate at an unacceptably slow speed or even fail. Any significant degradation or failure of the systems that the General Partner uses to gather and analyze information, enter orders, process data, monitor risk levels and otherwise engage in trading activities may result in substantial losses on transactions, liability to other parties, lost profit opportunities, damages to the General Partner’s and USOF’s reputations, increased operational expenses and diversion of technical resources.
 
If the computer and communications systems are not upgraded, as needed, USOF’s financial condition could be harmed.
 
The development of complex computer and communications systems and new technologies may render the existing computer and communications systems supporting USOF’s trading activities obsolete. In addition, these computer and communications systems must be compatible with those of third parties, such as the systems of exchanges, clearing brokers and the executing brokers. As a result, if these third parties upgrade their systems, the General Partner will need to make corresponding upgrades to continue effectively its trading activities. USOF’s future success will depend on USOF’s ability to respond to changing technologies on a timely and cost-effective basis.
43

USOF depends on the reliable performance of the computer and communications systems of third parties, such as brokers and futures exchanges, and may experience substantial losses on transactions if they fail.
 
USOF depends on the proper and timely function of complex computer and communications systems maintained and operated by the futures exchanges, brokers and other data providers that the General Partner uses to conduct trading activities. Failure or inadequate performance of any of these systems could adversely affect the General Partner’s ability to complete transactions, including its ability to close out positions, and result in lost profit opportunities and significant losses on commodity interest transactions. This could have a material adverse effect on revenues and materially reduce USOF’s available capital. For example, unavailability of price quotations from third parties may make it difficult or impossible for the General Partner to use its proprietary software that it relies upon to conduct its trading activities. Unavailability of records from brokerage firms may make it difficult or impossible for the General Partner to accurately determine which transactions have been executed or the details, including price and time, of any transaction executed. This unavailability of information also may make it difficult or impossible for the General Partner to reconcile its records of transactions with those of another party or to accomplish settlement of executed transactions.
 
The occurrence of a terrorist attack, or the outbreak, continuation or expansion of war or other hostilities could disrupt USOF’s trading activity and materially affect USOF’s profitability.
 
The operations of USOF, the exchanges, brokers and counterparties with which USOF does business, and the markets in which USOF does business could be severely disrupted in the event of a major terrorist attack or the outbreak, continuation or expansion of war or other hostilities. The terrorist attacks of September 11, 2001 and the war in Iraq, global anti-terrorism initiatives and political unrest in the Middle East and Southeast Asia continue to fuel this concern.
 
Risk of Leverage and Volatility
 
If the General Partner permits USOF to become leveraged, investors could lose all or substantially all of their investment if USOF’s trading positions suddenly turn unprofitable.
 
Commodity pools’ trading positions in futures contracts or other commodity interests are typically required to be secured by the deposit of margin funds that represent only a small percentage of a futures contract’s (or other commodity interests’) entire face value. This feature permits commodity pools to “leverage” their assets by purchasing or selling futures contracts (or other commodity interests) with an aggregate value in excess of the commodity pool’s assets. While this leverage can increase the pool’s profits, relatively small adverse movements in the price of the pool’s futures contracts can cause significant losses to the pool. While the General Partner does not currently leverage USOF’s assets, it is not prohibited from doing so under the LP Agreement or otherwise.
 
The price of crude oil is volatile which could cause large fluctuations in the price of units.
Movements in the price of crude oil may be the result of factors outside of the General Partner’s control and may not be anticipated by the General Partner. For example, price movements for barrels of oil are influenced by, among other things:

changes in interest rates;
actions by oil producing countries such as the OPEC countries;
governmental, agricultural, trade, fiscal, monetary and exchange control programs and policies;
weather and climate conditions;
changing supply and demand relationships, including but not limited to increased demand by other countries such as China;
changes in balances of payments and trade;
U.S. and international rates of inflation;
currency devaluations and revaluations;
U.S. and international political and economic events; and
changes in philosophies and emotions of market participants.
Over-the-Counter Contract Risk
 
Over-the-counter transactions are subject to little, if any, regulation.
 
A portion of USOF’s assets may be used to trade over-the-counter oil interest contracts, such as forward contracts or swap or spot contracts. Over-the-counter contracts are typically traded on a principal-to-principal basis through dealer markets that are dominated by major money center and investment banks and other institutions and are essentially unregulated by the CFTC. Investors therefore do not receive the protection of CFTC regulation or the statutory scheme of the Commodity Exchange ActCEA in connection with this trading activity by USOF. The markets for over-the-counter contracts rely upon the integrity of market participants in lieu of the additional regulation imposed by the CFTC on participants in the futures markets. The lack of regulation in these markets could expose USOF in certain circumstances to significant losses in the event of trading abuses or financial failure by participants.
44

USOF will be subject to credit risk with respect to counterparties to over-the-counter contracts entered into by USOF or held by special purpose or structured vehicles.
 
USOF faces the risk of non-performance by the counterparties to the over-the-counter contracts. Unlike in futures contracts, the counterparty to these contracts is generally a single bank or other financial institution, rather than a clearing organization backed by a group of financial institutions. As a result, there will be greater counterparty credit risk in these transactions. A counterparty may not be able to meet its obligations to USOF, in which case USOF could suffer significant losses on these contracts.
 
If a counterparty becomes bankrupt or otherwise fails to perform its obligations due to financial difficulties, USOF may experience significant delays in obtaining any recovery in a bankruptcy or other reorganization proceeding. USOF may obtain only limited recovery or may obtain no recovery in such circumstances.
 
USOF may be subject to liquidity risk with respect to its over-the-counter contracts.
 
Over-the-counter contracts may have terms that make them less marketable than Oil Futures Contracts. Over-the-counter contracts are less marketable because they are not traded on an exchange, do not have uniform terms and conditions, and are entered into based upon the creditworthiness of the parties and the availability of credit support, such as collateral, and in general, they are not transferable without the consent of the counterparty. These conditions diminish the ability to realize the full value of such contracts.
 
Risk of Trading in International Markets
 
Trading in international markets would expose USOF to credit and regulatory risk.
 
The General Partner invests primarily in Oil Futures Contracts, a significant portion of which are traded on United States exchanges including the New York Mercantile Exchange.NYMEX. However, a portion of USOF’s trades take place on markets and exchanges outside the United States. Some non-U.S. markets present risks because they are not subject to the same degree of regulation as their U.S. counterparts. None of the CFTC, NFA, or any domestic exchange regulates activities of any foreign boards of trade or exchanges, including the execution, delivery and clearing of transactions, nor has the power to compel enforcement of the rules of a foreign board of trade or exchange or of any applicable non-U.S. laws. Similarly, the rights of market participants, such as USOF, in the event of the insolvency or bankruptcy of a non-U.S. market or broker are also likely to be more limited than in the case of U.S. markets or brokers. As a result, in these markets, USOF has less legal and regulatory protection than it does when it trades domestically.
 
In some of these non-U.S. markets, the performance on a contract is the responsibility of the counterparty and is not backed by an exchange or clearing corporation and therefore exposes USOF to credit risk. Trading in non-U.S. markets also leaves USOF susceptible to swings in the value of the local currency against the U.S. dollar. Additionally, trading on non-U.S. exchanges is subject to the risks presented by exchange controls, expropriation, increased tax burdens and exposure to local economic declines and political instability. An adverse development with respect to any of these variables could reduce the profit or increase the loss earned on trades in the affected international markets.
45

International trading activities subject USOF to foreign exchange risk.
 
The price of any non-U.S. futures, options on futures or other commodity interest contract and, therefore, the potential profit and loss on such contract, may be affected by any variance in the foreign exchange rate between the time the order is placed and the time it is liquidated, offset or exercised. As a result, changes in the value of the local currency relative to the U.S. dollar may cause losses to USOF even if the contract traded is profitable.
 
USOF’s international trading would expose it to losses resulting from non-U.S. exchanges that are less developed or less reliable than United States exchanges.
 
Some non-U.S. exchanges may be in a more developmental stage so that prior price histories may not be indicative of current price dynamics. In addition, USOF may not have the same access to certain positions on foreign trading exchanges as do local traders, and the historical market data on which General Partner bases its strategies may not be as reliable or accessible as it is for U.S. exchanges.
 
Tax Risk
 
An investor's tax liability may exceed the amount of distributions, if any, on its units.
 
Cash or property will be distributed at the sole discretion of the General Partner, and the General Partner currently does not intend to make cash or other distributions with respect to units. Investors will be required to pay U.S. federal income tax and, in some cases, state, local, or foreign income tax, on their allocable share of USOF’s taxable income, without regard to whether they receive distributions or the amount of any distributions. Therefore, the tax liability of an investor with respect to its units may exceed the amount of cash or value of property (if any) distributed.
 
An investor's allocable share of taxable income or loss may differ from its economic income or loss on its units.
 
Due to the application of the assumptions and conventions applied by USOF in making allocations for tax purposes and other factors, an investor's allocable share of USOF’s income, gain, deduction or loss may be different than its economic profit or loss from its units for a taxable year. This difference could be temporary or permanent and, if permanent, could result in it being taxed on amounts in excess of its economic income.
 
Items of income, gain, deduction, loss and credit with respect to units could be reallocated if the IRS does not accept the assumptions and conventions applied by USOF in allocating those items, with potential adverse consequences for an investor.
 
The U.S. tax rules pertaining to partnerships are complex and their application to large, publicly traded partnerships such as USOF is in many respects uncertain. USOF applies certain assumptions and conventions in an attempt to comply with the intent of the applicable rules and to report taxable income, gains, deductions, losses and credits in a manner that properly reflects unitholders’ economic gains and losses. These assumptions and conventions may not fully comply with all aspects of the Internal Revenue Code (“Code”(the “Code”) and applicable Treasury Regulations, however, and it is possible that the U.S. Internal Revenue Service will successfully challenge our allocation methods and require us to reallocate items of income, gain, deduction, loss or credit in a manner that adversely affects investors. If this occurs, investors may be required to file an amended tax return and to pay additional taxes plus deficiency interest.
46

We could be treated as a corporation for federal income tax purposes, which may substantially reduce the value of the units.
 
USOF has received an opinion of counsel that, under current U.S. federal income tax laws, USOF will be treated as a partnership that is not taxable as a corporation for U.S. federal income tax purposes, provided that (i) at least 90 percent of USOF’s annual gross income consists of “qualifying income” as defined in the Code, (ii) USOF is organized and operated in accordance with its governing agreements and applicable law and (iii) USOF does not elect to be taxed as a corporation for federal income tax purposes. Although the General Partner anticipates that USOF will satisfy the “qualifying income” requirement for all of its taxable years, that result cannot be assured. USOF has not requested and will not request any ruling from the IRS with respect to its classification as a partnership not taxable as a corporation for federal income tax purposes. If the IRS were to successfully assert that USOF is taxable as a corporation for federal income tax purposes in any taxable year, rather than passing through its income, gains, losses and deductions proportionately to unitholders, USOF would be subject to tax on its net income for the year at corporate tax rates. In addition, although the General Partner does not currently intend to make distributions with respect to units, any distributions would be taxable to unitholders as dividend income. Taxation of USOF as a corporation could materially reduce the after-tax return on an investment in units and could substantially reduce the value of the units.
 
Legal Risks
Representatives of the New York Mercantile Exchange have notified USOF of its belief that USOF is engaging in unauthorized use of such Exchange’s service marks and settlement prices.

USOF invests primarily in Oil Futures Contracts, and particularly in Oil Futures Contracts traded on the New York Mercantile Exchange. Representatives of the New York Mercantile Exchange have at various times asserted varying claims regarding USOF’s operations and the Exchange’s service marks and settlement prices of oil futures contracts traded on the Exchange.
The New York Mercantile Exchange initially claimed that USOF’s use of the Exchange’s service marks would cause confusion as to USOF’s source, origin, sponsorship or approval, and constitute infringement of the Exchange’s trademark rights and unfair competition and dilution of the Exchange’s marks. In response to these claims, the General Partner changed USOF’s name. In addition, USOF expressly disclaims any association with the Exchange or endorsement of USOF by the Exchange and acknowledges that “NYMEX” and “New York Mercantile Exchange” are registered trademarks of such Exchange.
The General Partner has also engaged in discussions with the New York Mercantile Exchange regarding a possible license agreement. In this regard, USOF received a letter from the Exchange dated March 29, 2006 (“March 29th Letter”). The March 29th Letter was in response to USOF’s request for additional information in connection with the negotiation of the possible license agreement. In the March 29th Letter, the Exchange stated that it would cause the cessation of any market data vendor’s provision of New York Mercantile Exchange settlement prices to USOF and/or take other action to prevent USOF from using any New York Mercantile Exchange settlement prices unless USOF enters into a license agreement with the Exchange, or has indicated in writing that it will cease from using any Exchange settlement prices. USOF will continue to seek an amicable resolution to this situation. It is evaluating the current draft of the license agreement in view of the March 29th letter but is also taking into account a recent New York federal district court decision against the NYMEX that found under similar circumstances that NYMEX’s intellectual property rights, including those related to its settlement prices, were significantly limited. USOF and the General Partner have retained separate counsel to represent them in this matter.
At this time, USOF is unable to determine what the outcome from this matter will be. There could be a number of consequences. Under the license agreement currently being negotiated, USOF would be required to pay a license fee to the New York Mercantile Exchange for the use of its settlement prices. Also, if the resolution or lack of resolution of this matter results in a material restriction on, or significant additional expense associated with, the use of the New York Mercantile Exchange’s oil futures contract settlement prices, USOF may be required to invest to a greater degree than currently anticipated in Oil Futures Contracts traded on commodity exchanges other than the New York Mercantile Exchange and Other Oil Interests. These or other consequences may adversely affect USOF’s ability to achieve its investment objective.
47

Others may also notify USOFbeen notified of intellectual property rights that could adversely impact USOF.

Separately, Goldman, Sachs & Co. (“Goldman Sachs”) sent USOF a letter on March 17, 2006, providing USOF and the General Partner notice under 35 U.S.C. Section 154(d) of two pending United States patent applications, Publication Nos. 2004/0225593A1 and 2006/0036533A1. Both patent applications are generally directed to a method and system for creating and administering a publicly traded interest in a commodity pool. In particular, the Abstract of each patent application defines a means for creating and administering a publicly traded interest in a commodity pool that includes the steps of forming a commodity pool having a first position in a futures contract and a corresponding second position in a margin investment, and issuing equity interestinterests of the commodity pool to third party investors. USOF Units are equity interests in a publicly traded commodity pool. In addition, USOF will directly invest in futures contractsSubsequently, two U.S. Patents were issued; the first, patent number US7,283,978B2, was issued on October 16, 2007, and hold other investments to be used as margin for its future contract positions. If patents were to bethe second, patent number US7,319,984B2, was issued to Goldman Sachs based upon these patent applications as currently drafted,on January 15, 2008.

Under the provisions of 35 U.S.C. § 154(d), Goldman Sachs may seek damagesalso in the formprocess of a reasonable royalty from the date the Units are publicly offered for sale to the datereviewing prior art (prior structures and operations of similar investment vehicles) that may invalidate one of their cited patent applications issues as a U.S. Patent if, and only if, the invention as claimed in the issued patent is substantially identical to the invention as claimed in the published patent application. To obtain a reasonable royalty under 35 U.S.C. § 154(d), one of Goldman Sachs’s patents must issue and then it must be proved that post-issuance acts or systems of USOF infringe a valid claim of the issued patent, and that the infringed claim is substantially identical to onemore of the claims in these patents. In addition, USOF has retained patent counsel to advise it on these matters and is in the corresponding published application.process of obtaining their opinions regarding the non-infringement of each of these patents by USOF and/or the patents' invalidity based on prior art. If at the timepatents were alleged to apply to USOF's structure and/or operations, and are found by a court to be valid and infringed, Goldman Sachs patent issues, USOF does not infringe the claims of the issued patent based on its current design may be awarded significant monetary damages and/or through modifications made prior to issuance, or if any infringed issued claim is not substantially identical to a published claim, then Goldman Sachs will not be able to obtain a reasonable royalty under 35 U.S.C. § 154(d). At this time neither of Goldman Sachs’s patent applications have been substantively examined by an examiner at the U.S. Patent and Trademark Office nor are they currently being considered for examination on an expedited basis under a Petition to Make Special, and considering that both have been placed in Class 705 for examination, which has an average pendency of approximately 44-45 months to issuance (or abandonment) and an issuance rate of approximately 11% in 2004, it is likely that neither application will issue within the next two years. Nonetheless, USOF currently is reviewing the Goldman Sachs published patent applications, and is engaged in discussions with Goldman Sachs regarding their pending applications and USOF’s own pending patent application. At this time, due in part to the requirements of 35 U.S.C. § 154(d) and the fact that the Goldman Sachs patent applications are pending and have not been issued as U.S. Patents, USOF is unable to determine what the outcome from this matter will be.injunctive relief. See “Operating“USOF's Operating Risks — Third parties may infringe upon or otherwise violate intellectual property rights or assert that the General Partner has infringed or otherwise violated their intellectual property rights, which may result in significant costs and diverted attention.”
47

 
Unresolved Staff Comments.

Not applicable.

Properties.

Not applicable.
48

Legal Proceedings.
 
Although weUSOF may, from time to time, be involved in litigation arising out of ourits operations in the normal course of business or otherwise, we areUSOF is currently not a party to any pending material legal proceedings, except for the items noted below.
New York Mercantile ExchangeGoldman Sachs
 
Representatives of the New York Mercantile Exchange have at various times asserted varying claims regarding USOF’s operations and the Exchange’s service marks and settlement prices of oil futures contracts traded on the Exchange.
The New York Mercantile Exchange initially claimed that USOF’s use of the Exchange’s service marks would cause confusion as to USOF’s source, origin, sponsorship or approval, and constitute infringement of the Exchange’s trademark rights and unfair competition and dilution of the Exchange’s marks. In response to these claims, the General Partner changed USOF’s name. In addition, USOF expressly disclaims any association with the Exchange or endorsement of USOF by the Exchange and acknowledges that “NYMEX” and “New York Mercantile Exchange” are registered trademarks of such Exchange.
The General Partner has also engaged in discussions with the New York Mercantile Exchange regarding a possible license agreement. In this regard, USOF received the March 29th Letter. The March 29th Letter was in response to USOF’s request for additional information in connection with the negotiation of the possible license agreement. In the March 29th Letter, the Exchange stated that it would cause the cessation of any market data vendor’s provision of New York Mercantile Exchange settlement prices to USOF and/or take other action to prevent USOF from using any New York Mercantile Exchange settlement prices unless USOF enters into a license agreement with the Exchange, or has indicated in writing that it will cease from using any Exchange settlement prices. USOF will continue to seek an amicable resolution to this situation. It is evaluating the current draft of the license agreement in view of the March 29th letter but is also taking into account a recent New York federal district court decision against the NYMEX that found under similar circumstances that NYMEX’s intellectual property rights, including those related to its settlement prices, were significantly limited. USOF and the General Partner have retained separate counsel to represent them in this matter.
At this time, USOF is unable to determine what the outcome from this matter will be. There could be a number of consequences. Under the license agreement currently being negotiated, USOF would be required to pay a license fee to the New York Mercantile Exchange for the use of its settlement prices. Also, if the resolution or lack of resolution of this matter results in a material restriction on, or significant additional expense associated with, the use of the New York Mercantile Exchange’s oil futures contract settlement prices, USOF may be required to invest to a greater degree than currently anticipated in Oil Futures Contracts traded on commodity exchanges other than the New York Mercantile Exchange and Other Oil Interests. These or other consequences may adversely affect USOF’s ability to achieve its investment objective.
49

Goldman Sachs
Goldman Sachs & Co. (“Goldman Sachs”) sent USOF a letter on March 17, 2006, providing USOF and the General Partner notice under 35 U.S.C. Section 154(d) of two pending United States patent applications, Publication Nos. 2004/0225593A1 and 2006/0036533A1. Both patent applications are generally directed to a method and system for creating and administering a publicly traded interest in a commodity pool. In particular, the Abstract of each patent application defines a means for creating and administering a publicly traded interest in a commodity pool that includes the steps of forming a commodity pool having a first position in a futures contract and a corresponding second position in a margin investment, and issuing equity interestinterests of the commodity pool to third party investors. USOF Units are equity interests in a publicly traded commodity pool. In addition, USOF directly invests in futures contractsSubsequently, two U.S. Patents were issued; the first, patent number US7,283,978B2, was issued on October 16, 2007, and hold other investments to be used as margin for its future contract positions. If patents were to bethe second, patent number US7,319,984B2, was issued to Goldman Sachs based upon these patent applications as currently drafted,on January 15, 2008.

Preliminarily, USOF's management is of the view that the structure and USOF continued to operate as currently contemplated after the patents were issued, claims againstoperations of USOF and the General Partner for infringement of the patents may be made by Goldman Sachs. However, asits affiliated commodity pools do not infringe these patent applications are pending and have not been substantively examined by the U.S. Patent and Trademark Office, itpatents. USOF is uncertain at this time what subject matter will be covered by the claims of any patent issuing on one of these applications, should a patent issue at all.
Under the provisions of 35 U.S.C. § 154(d), Goldman Sachs may seek damagesalso in the formprocess of a reasonable royalty from the date the Units are publicly offered for sale to the datereviewing prior art (prior structures and operations of similar investment vehicles) that may invalidate one of their cited patent applications issues as a U.S. Patent if, and only if, the invention as claimed in the issued patent is substantially identical to the invention as claimed in the published patent application. To obtain a reasonable royalty under 35 U.S.C. § 154(d), one of Goldman Sachs’s patents must issue and then it must be proved that post-issuance acts or systems of USOF infringe a valid claim of the issued patent, and that the infringed claim is substantially identical to onemore of the claims in these patents. In addition, USOF has retained patent counsel to advise it on these matters and is in the corresponding published application.process of obtaining their opinions regarding the non-infringement of each of these patents by USOF and/or the patents' invalidity based on prior art. If at the timepatents were alleged to apply to USOF's structure and/or operations, and are found by a court to be valid and infringed, Goldman Sachs patent issues, USOF does notmay be awarded significant monetary damages and/or injunctive relief. See “USOF's Operating Risks — Third parties may infringe the claims of the issued patent based on its current designupon or through modifications made prior to issuance,otherwise violate intellectual property rights or if any infringed issued claim is not substantially identical to a published claim, then Goldman Sachs will not be able to obtain a reasonable royalty under 35 U.S.C. § 154(d). At this time neither of Goldman Sachs’s patent applications have been substantively examined by an examiner at the U.S. Patent and Trademark Office nor are they currently being considered for examination on an expedited basis under a Petition to Make Special, and considering that both have been placed in Class 705 for examination, which has an average pendency of approximately 44-45 months to issuance (or abandonment) and an issuance rate of approximately 11% in 2004, it is likely that neither application will issue within the next two years. Nonetheless, USOF currently is reviewing the Goldman Sachs published patent applications, and is engaged in discussions with Goldman Sachs regarding their pending applications and USOF’s own pending patent application. At this time, due in part to the requirements of 35 U.S.C. § 154(d) and the factassert that the Goldman Sachs patent applications are pendingGeneral Partner has infringed or otherwise violated their intellectual property rights, which may result in significant costs and have not been issued as U.S. Patents, USOF is unable to determine what the outcome from this matter will be.diverted attention.”
48

Submission of Matters to a Vote of Security Holders.

Not applicable.
 
Part II

Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities.
 
Price Range of Units
 
USOF’s units have traded on the American Stock Exchange (“AMEX”)AMEX under the symbol “USO” since its initial public offering on April 10, 2006. The following table sets forth the range of reported high and low sales prices of the units as reported on AMEX for the period of April 10, 2006 through December 31, 2006periods indicated below. 
 
 
High
 
Low
 
 High
 
Low
 
Fiscal year 2006     
Second quarter (beginning April 10, 2006) 
$
73.23 
$
64.89
 
Fiscal year 2007     
First quarter $53.62 $43.23 
Second quarter $53.56 $48.01 
Third quarter 
$
74.60
 
$
54.06
  $63.44 $52.35 
Fourth quarter 
$
56.90
 
$
50.25
  
$
77.34 
$
60.76
 
 
  High
 
Low
 
Fiscal year 2006     
Second quarter  (beginning April 10, 2006) $73.23 $64.89 
Third quarter $74.60 $54.06 
Fourth quarter 
$
56.90 
$
50.25
 
As of December 31, 2006, we2007, USOF had 27,99514,504 holders of units.
5049

Dividends
 
USOF has not made and does not intend to make cash distributions to its unitholders.

Issuer Purchases of Equity Securities
 
USOF does not purchase units directly from its unitholders; however, in connection with its redemption of baskets held by Authorized Purchasers, USOF redeemed 350875 baskets (comprising 13,500,00087,500,000 units) during the period of April 10, 2006 toyear ended December 31, 2006.2007.
 
Selected Financial Data.

Financial Highlights (for the period from April 10, 2006 toyear ended December 31, 2006)2007)
(Dollar amounts in 000’s except for Loss per unit)
 
Total assets $804,349 
Net realized and unrealized loss on futures transactions, inclusive of commissions $(138,926)
Net loss $(126,349
Weighted-average limited partnership units  7,018,797 
Net loss per unit $(15.52 
Net loss per weighted average unit $(18.00
Net cash flows $712,884 
Total assets $485,817 
Net realized and unrealized gain on futures transactions, inclusive of commissions $254,426 
Net income $284,416 
Weighted-average limited partnership units  13,730,137 
Net income per unit $23.95 
Net income per weighted average unit $20.71 
Cash at end of year $354,816 
5150

Management’s Discussion and Analysis of Financial Condition and Results of Operation.
Operations.
 
The following discussion should be read in conjunction with ourthe consolidated financial statements and the notes thereto of USOF included elsewhere in this annual report on Form 10-K.
 
Forward-Looking Information
 
This annual report on Form 10-K, including this "Management's Discussion and Analysis of Financial Condition and Results of Operations," contains forward-looking statements regarding the plans and objectives of management for future operations. This information may involve known and unknown risks, uncertainties and other factors whichthat may cause ourUSOF's actual results, performance or achievements to be materially different from future results, performance or achievements expressed or implied by any forward-looking statements. Forward-looking statements, which involve assumptions and describe ourUSOF's future plans, strategies and expectations, are generally identifiable by use of the words “may,” “will,” “should,” “expect,” “anticipate,” “estimate,” “believe,” “intend” or “project” or“project,” the negative of these words, or other variations on these words or comparable terminology. These forward-looking statements are based on assumptions that may be incorrect, and weUSOF cannot assure investors that these projections included in these forward-looking statements will come to pass. OurUSOF's actual results could differ materially from those expressed or implied by the forward-looking statements as a result of various factors.
 
We haveUSOF has based the forward-looking statements included in this annual report on Form 10-K on information available to usit on the date of this annual report on Form 10-K, and we assumeUSOF assumes no obligation to update any such forward-looking statements. Although we undertakeUSOF undertakes no obligation to revise or update any forward-looking statements, whether as a result of new information, future events or otherwise, investors are advised to consult any additional disclosures that weUSOF may make directly to them or through reports that weUSOF in the future may filefiles with the SEC, including annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K. Except for historical information contained herein, this “Management’s Discussion and Analysis of Financial Condition and Results of Operations” contains forward-looking statements that involve known and unknown risks and uncertainties that may cause our actual results or outcome to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements.

Introduction

USOF, a Delaware limited partnership, is a commodity pool that issues units that may be purchased and sold on the American Stock Exchange.AMEX. The investment objective of USOF is for changes in percentage terms of the units’ NAV on a daily basis to reflect the changes in percentage terms in the spot price of WTI light, sweet crude oil delivered to Cushing, Oklahoma, also on a daily basis, as measured by the changes in the price of the futures contract on light, sweet crude oil as traded on the NYMEX that is the near month contract to expire, except when the near month contract is within two weeks of expiration, in which case the futures contract will be the next month contract to expire, less USOF’s expenses.

USOF seeks to achieve its investment objective by investing in a combination of oil futures contractsOil Futures Contracts and other oil interestsOther Oil Interests such that changes in USOF’s NAV, measured in percentage terms, will closely track the changes in the price of the Benchmark Oil Futures Contract, also measured in percentage terms. USOF’s General Partner believes the Benchmark Oil Futures Contract historically has exhibited a close correlation with the spot price of WTI light, sweet crude oil. It is not the intent of USOF to be operated in a fashion such that the NAV will equal, in dollar terms, the spot price of light, sweet crude oil or any particular futures contract based on light, sweet crude oil. Management believes that it is not practical to manage the portfolio to achieve such an investment goal when investing in listed crude oil futures contracts.
 
At present, on any valuation day the Benchmark Oil Futures Contract is the near month futures contract for WTI light, sweet crude oil traded on the New York Mercantile ExchangeNYMEX unless the near month contract will expire within two weeks of the valuation day, in which case the Benchmark Oil Futures Contract is the next month contract for WTI light, sweet crude oil traded on the New York Mercantile Exchange.NYMEX. “Near month contract” means the next contract traded on the New York Mercantile ExchangeNYMEX due to expire;expire; “next month contract” means the first contract traded on the New York Mercantile ExchangeNYMEX due to expire after the near month contract.
 
USOF may also invest in futures contracts for other types of crude oil, heating oil, gasoline, natural gas, and other petroleum-based fuels that are traded on the New York Mercantile Exchange or other U.S. and foreign exchanges (collectively, “Oil Futures Contracts”) and other oil interests such as cash-settled options on Oil Futures Contracts, forward contracts for oil, and over-the-counter transactions that are based on the price of oil, other petroleum-based fuels, Oil Futures Contracts and indices based on the foregoing (collectively, “OtherOther Oil Interests”).Interests. The General Partner of USOF Victoria Bay Asset Management, LLC, which is registered as a commodity pool operator,CPO with the CFTC and is authorized by the LP Agreement to manage USOF. The General Partner is authorized by USOF in its sole judgment to employ, establish the terms of employment for and terminate commoditiescommodity trading advisors or futures commission merchants.
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Valuation of Crude Oil Futures Contracts and the Computation of the NAV

The NAV of USOF units is calculated once each trading day as of the earlier of the close of the New York Stock ExchangeNYSE or  4:00 p.m. New York time. The NAV for a particular trading day is released after 4:15 p.m. New York time. Trading on the American Stock ExchangeAMEX typically closes at 4:15 p.m. New York time. USOF uses the New York Mercantile ExchangeNYMEX closing price (determined at the earlier of the close of that exchangethe NYMEX or 2:30 p.m. New York time) for the contracts held on the New York Mercantile Exchange,NYMEX, but calculates or determines the value of all other USOF investments, including ICE Futures or other futures contracts, as of the earlier of the close of the New York Stock ExchangeNYSE or 4:00 p.m. New York time.
 
Management’s Discussion of Results of Operation and the Crude Oil Market

Results of Operations.  On April 10, 2006, USOF listed its Unitsunits on the American Stock ExchangeAMEX under the ticker symbol “USO.” On that day USOF established its initial offering price at $67.39 per unit and issued 200,000 Unitsunits to the initial Authorized Purchaser, KV Execution Services LLC, in exchange for $13,478,000 in cash.
Since its initial offering of 17,000,000 units, USOF also commenced investment operationshas made four subsequent offerings of its units: 30,000,000 units which were registered with the SEC on that dayOctober 18, 2006, 50,000,000 units which were registered with the SEC on January 30, 2007, 30,000,000 units which were registered with the SEC on December 4, 2007 and an additional 100,000,000 units which were registered with the SEC on January 24, 2008. Units offered by purchasing oil futures contracts traded onUSOF in subsequent offerings were sold by it for cash at the New York Mercantile Exchangeunits' NAV as described in the applicable prospectus. As of December 31, 2007, USOF had issued 107,400,000 units, 19,600,000 of which were remaining and 6,400,000 of which were outstanding.
More units have been issued than are outstanding due to the redemption of units as contemplated and permitted under the LP Agreement. Unlike funds that are basedregistered under the 1940 Act, units that have been redeemed by USOF cannot be resold by USOF without registration of their offering with the SEC. As a result, USOF contemplates that further offerings of its units will be registered with the SEC in the future in anticipation of additional issuances.
As of December 31, 2007, the total unrealized gain on WTI light, sweet crude oil. The total market value of the crude oil futures contracts purchasedowned or held on that day was $13,418,501 at the time of purchase.$35,705,020 and USOF established cash deposits that were equal to $13,478,000 at the time of the initial sale of Units. The ending NAV on the first day of operations was $67.93.$187,445,274. The majority of those cash assets were held in overnight deposits at USOF’s custodian bankCustodian, while less than 10% of the cash balance was held as margin deposits with USOF’sthe futures commission merchant relating tofor the Oil Futures Contracts purchased. The ending per unit NAV on December 31, 2007 was $75.82.

Portfolio Expenses. USOF’s expenses consist of investment management fees, brokerage fees and commissions.commissions, certain offering costs, licensing fees and the fees and expenses of the independent directors of the General Partner. The investment advisorymanagement fee that USOF pays to the General Partner is calculated as a percentage of the total net assets of USOF. For total net assets of up to $1 billion, the investment advisorymanagement fee is 0.5%. For total net assets over $1 billion, the investment advisorymanagement fee is 0.2% on the incremental amount of assets.
During the period from April 10, 2006 to December 31, 2006, the daily average total net assets of the USOF were approximately $400,799,633. At no time during 2006 did the total net assets of USOF exceed $1 billion. The investment advisorymanagement fee paid by USOF amounted to $1,460,448, which was calculated at the 0.50% rate and accrued daily. Management expenses as a percentage of total net assets average 0.50% over the course of the period.

During the year ended December 31, 2007, the daily average total net assets of USOF were $732,683,031.  During the year ended December 31, 2007, total net assets of USOF did exceed $1 billion on a number of days. The management fee paid by USOF amounted to $3,622,613, which was calculated at the 0.50% rate for the total net assets up to and including $1 billion and at the rate of 0.20% on total net assets over $1 billion, and accrued daily. Management expenses as a percentage of total net assets averaged 0.50% over the course of the period.
USOF pays for all brokerage fees, taxes and other expenses, including licensing fees for the use of intellectual property, ongoing registration or other fees paid to the SEC, FINRA and any other regulatory agency in connection with offers and sales of its units subsequent to the initial offering and all legal, accounting, printing and other expenses associated therewith. For the year ended December 31, 2007, USOF incurred $437,974 in ongoing registration fees and other offering expenses. USOF is responsible for paying the fees and expenses, including directors' and officers' liability insurance, of the independent directors of the General Partner who are also audit committee members. USOF shares these fees with USNG and US12OF based on the relative assets of each fund computed on a daily basis. These fees for calendar year 2007 amounted to a total of $286,000 for all three funds. 
Expenses incurred from inception through December 31, 2006 in connection with organizing USOF and the costs of the initial offering of units were borne by the General Partner, and are not subject to reimbursement by USOF.
USOF also incurs commissions to brokers for the purchase and sale of futures contracts, other oil interests,Oil Futures Contracts, Other Oil Interests or Treasuries. During the period from April 10, 2006 to December 31, 2006, total commissions paid amounted to $478,713. As an annualized percentage of total net assets, the actual figure for 2006 represents approximately 0.16% of total net assets. During 2007, total commissions paid amounted to $1,184,956. Prior to the initial offering of its units, USOF had estimated that theits annual level of such commissions for USOF was expected to be 0.35%0.35% of total net assets. As an annualized percentage of total net assets, the actual figuresfigure for 20062007 represents approximately 0.16%0.16% of total net assets. However, there can be no assurance that commission costs and portfolio turnover will not cause commission expenses to rise in future quarters.
 
Expenses incurred from inception through December 31, 2006 in connection with organizing USOF and the initial offering costs of the units were borne by the General Partner, and are not subject to reimbursement by USOF.
Interest Income. USOF seeks to invest its assets such that it holds crude oil futures contractsOil Futures Contracts and other oil interestsOther Oil Interests in an amount equal to the total net assets of the portfolio. Typically, such investments do not require USOF to pay the full amount of the contract value at the time of purchase, but rather require USOF to post an amount as a margin deposit against the eventual settlement of the contract. As a result, USOF retains an amount that is approximately equal to its total net assets, which USOF invests in Treasuries, cash deposits and/or in Treasuries.cash equivalents. This includes both the amount on deposit with the futures brokerage firmscommission merchant as margin, as well as unrestricted cash held with USOF’s custodian bank.Custodian. The Treasuries, cash and/or Treasuriescash equivalents earn interest that accrues on a daily basis. For 2006, USOF earned $13,930,431 in interest income on such cash holdings. Based on USOF’s average daily total net assets, this is equivalent to an annualized yield of 4.77%. USOF did not purchase Treasuries during 2006 and held all of its funds in cash and/or cash equivalents during this time period. For 2007, USOF earned $34,845,846 in interest income on such cash holdings. Based on USOF’s average daily total net assets, this is equivalent to an annualized yield of 4.76%. USOF did not purchase Treasuries during 2007 and held all of its funds in cash and/or cash equivalents during this time period.
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Tracking USOF’s Benchmark. USOF seeks to manage its portfolio such that changes in its average daily NAV, on a percentage basis, closely track changes in the average daily price of the Benchmark Oil Futures Contract, also on a percentage basis. Specifically, USOF seeks to manage the portfolio such that over any rolling 30-day period of 30 valuation days, the average daily change in the NAV is within a range of 90% to 110% (0.9 to 1.1), of the average daily change of the Benchmark Oil Futures Contract. As an example, if the average daily movement of the Benchmark Oil Futures Contract for a particular 30-day time period was 0.5% per day, USOF management would attempt to manage the portfolio such that the average daily movement of the NAV during that same time period fell between 0.45% and 0.55% (i.e., between 0.9 and 1.1 of the benchmark’s results). USOF’s portfolio management goals do not include trying to make the nominal price of USOF’s NAV equal to the nominal price of the current Benchmark Oil Futures Contract.Contract or the spot price for crude oil. Management believes that it is not practical to manage the portfolio to achieve such an investment goal when investing in listed crude oil futures contracts.

For the 30 valuation days endingended December 31, 2006,2007, the simple average daily change in the Benchmark Oil Futures Contract was -0.004 %,0.166%, while the simple average daily change in the NAV of USOF over the same time period was -0.021 %.0.176%. The average daily difference was 0.017 %0.01% (or 1.71.0 basis points, where 1 basis point equals 1/100 of 1%). As a percentage of the daily movement of the Benchmark Oil Futures Contract, the average error in daily tracking by the NAV was 3%2.462%, meaning that over this time period USOF’s tracking error was within the plus or minus 10% range established as its benchmark tracking goal.
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Since the offering of USOF units to the public on April 10, 2006 to December 31, 2007, the simple average daily change in the Benchmark Oil Futures Contract was -0.131%-0.031%, while the simple average daily change in the NAV of USOF over the same time period was- 0.138%was 0.042%. The average daily difference was 0.007%0.011% (or .71.1 basis point, where 1 basis point equals 1/100 of 1%). As a percentage of the daily movement of the benchmark contract,Benchmark Oil Futures Contract, the average error in daily tracking by the NAV was 3%2.98%, meaning that over this time period USOF’s tracking error was within the plus or minus 10% range established as its benchmark tracking goal.

An alternative tracking measurement of the return performance of USOF versus the return of its benchmarkBenchmark Oil Futures Contract can be calculated by comparing the actual return of USOF, measured by changes in its NAV, versus the expected changes in its NAV under the assumption that USOF’s returns had been exactly the same as the daily changes in its benchmark. As a point of reference, USOF commenced operations on April 10, 2006 with the June 2006 crude oil contract as its Benchmark Oil Futures Contract. 

For the year ended December 31, 2007, the actual total return of USOF ended 2006 withas measured by changes in its NAV was 46.17%. This is based on initial NAV of $51.87 on January 2, 2007 and an ending NAV as of December 31, 2007 of $75.82. During this time period, USOF made no distributions to its unitholders. However, if USOF’s daily changes in its NAV had instead exactly tracked the February 2007 crude oil contract as itschanges in the daily return of the Benchmark Oil Futures Contract.Contract, USOF would have ended 2007 with an estimated NAV of $73.01, for a total return over the relevant time period of 40.75%. The difference between the actual NAV total return of USOF of 46.17% and the expected total return based on the Benchmark Oil Futures Contract of 40.75% was an error over the time period of +5.42%, which is to say that USOF’s actual total return exceeded the benchmark result by that percentage. Management believes that a portion of the difference between the actual return and the expected benchmark return can be attributed to the impact of the interest that USOF collects on its cash and cash equivalent holdings. In addition, during the year ended December 31, 2007, USOF also collected fees from brokerage firms creating or redeeming baskets of units. This income also contributed to USOF’s actual return exceeding the benchmark results. However, if the total assets of USOF continue to increase, management believes that the impact on total returns of these fees from creations and redemptions will diminish as a percentage of the total return.

For the period April 10, 2006 through December 31, 2006, the actual total return of USOF as measured by changes in its NAV was -23.03%. This is based on initial NAV of $67.39 on April 10 and an ending NAV as of December 31 of $51.87 (during this time period USOF made no distributions to its unitholders). However, if USOF’s daily changes in its NAV had instead exactly tracked the changes in the daily return of the Benchmark Oil Futures Contracts, USOF would have ended 2006 with an estimated NAV of $50.61, for a total return over the relevant time period of -24.90%. The difference between the actual NAV total return of USOF of -23.03% and the expected total return based on the Benchmark Oil Futures Contracts of -24.90 % was an error over the time period of +1.87%, which is to say that USOF’s actual total return exceeded the benchmark result by that percentage. Management believes that the majority of the difference between the actual return and the expected benchmark return can be attributed to the impact of the interest that USOF collects on its cash and cash equivalent holdings. In addition, during the period USOF also collected fees from brokerage firms creating or redeeming baskets of units. This income also contributed to USOF’s actual return exceeding the benchmark results. However, if the total assets of USOF continue to increase, management believes that the impact on total returns of these fees from creations and redemptions will diminish as a percentage of the total return.
 
Of the various factors that could impact USOF’s ability to accurately track its benchmark, thereThere are currently three factors that have impacted, during the latest period, or are most likely to impact, in the future, these tracking results.USOF’s ability to accurately track its Benchmark Oil Futures Contract.

The first major factor that could affect tracking results is ifFirst, USOF buysmay buy or sellssell its holdings in the then current Benchmark Oil Futures Contract at a price other than the closing settlement price of that contract on the day in which USOF executes the trade. In that case, USOF may get a price that is higher, or lower, than that of the Benchmark Oil Futures Contract, which, if such transactions did occur, could cause the changes in the daily NAV of USOF to either be too high or too low relative to the changes in the daily benchmark. In 2006,2007, management attempted to minimize the effect of these transactions by seeking to execute its purchase or sales of the Benchmark Oil Futures Contracts at, or as close as possible to, the end of the day settlement price. However, it ismay not always be possible for USOF to obtain the closing settlement price and there is no assurance that failure to obtain the closing settlement price in the future will not adversely impact USOF’s attempt to track its benchmark over time.
 
The second major factor that could affect tracking results is the interest thatSecond, USOF earns interest on its cash, cash equivalents and Treasury holdings. USOF is not required to distribute any portion of its income to its unit holdersunitholders and did not make any distribution to unitholders in 2006.2007. Interest payments, and any other income, were retained within the portfolio and added to USOF’s NAV. When this income exceeds the level of USOF’s expenses for its investment advisorymanagement fee, and its brokerage commissions and other expenses (including ongoing registration fees, licensing fees and the fees and expenses of the independent directors of the General Partner), USOF will realize a net yield that will tend to cause daily changes in the NAV of USOF to track slightly higher than daily changes in the Benchmark Oil Futures Contracts. During 2006,2007, USOF earned, on an annualized basis, approximately 4.77%4.76% on its cash holdings. It also incurred cash expenses on an annualized basis of .5%0.50% for investment advisorymanagement fees and approximately .16%0.16% in brokerage commission costs related to the purchase and sale of futures contracts.contracts, and 0.21% for other expenses. The foregoing fees and expenses resulted in a net yield on an annualized basis of approximately 4.1%3.89% and affected USOF’s ability to track its benchmark. If short-term interest rates rise above the current levels, the level of deviation created by the yield would increase. Conversely, if short-term interest rates were to decline, the amount of error created by the yield would decrease. If short termshort-term yields drop to a level lower than the combined expenses of the investment advisorymanagement fee and the brokerage commissions, then the tracking error would become a negative number and would tend to cause the daily returns of the NAV to underperform the daily returns of the benchmark crude oil futures contracts.
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The third major factor affecting tracking results is if USOF holds oil related investments in its portfolios other than the current Benchmark Oil Futures ContractContract.
Third, USOF may hold Other Oil Interests in its portfolio that may fail to closely track the Benchmark Oil Futures Contract's total return movements. In that case, the error in tracking the benchmark cancould result in daily changes in the NAV of USOF that are either too high, or too low, relative to the daily changes in the benchmark. During 20062007, USOF did not hold any oil related investments other than the then current BenchmarkOther Oil Futures Contract.Interests. However, there can be no assurance that in future quarters USOF will not make use of such non-benchmark oil related investments.Other Oil Interests.

Crude oil market.During the period from April 10, 2006 toyear ended December 31, 2006, crude oil2007, the prices of front month futures contracts rose from near the $58.00 level to approximately the $95.00 level. The prices of front month contracts were impacted by several factors. Onlower than the consumption side demand remained strong as continued global economic growth, especially in emerging economies such as China and India, remained brisk. Onprice of second or third month contracts for the supply side, production remained steady despite concerns aboutfirst six months of this time period. The prices of front month contracts were higher than the possible negative impactprice of hurricanes in the U.S. Gulf Coast area and violence impacting production in Iraq and Nigeria. During the latter part of 2006, the oil producing portionssecond or third month contracts for most of the Gulf Coast were not subject to a repeatsecond six months of 2005’s disastrous storms. In addition, although the crude oil market’s concerns about geo-political issues regarding other key crude oil producing countries, such as Iran and Venezuela, remained, such concerns appear to have moderated at least in the short term. As a result of the foregoing, although crude oil prices trended initially higher from April 10 until mid-July 2006, over the course of rest of the third and fourth quarters prices fell sharply and showed periods of greater than usual volatility. Crude oil prices finished 2006 at lower levels than where they were in April 2006 when USOF commenced operations.this time period.

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Term Structure of Crude Oil Futures Prices and the impactImpact on total returns. Total Returns. Several factors determine the total return from investing in a futures contract position. One factor that impacts the total return that will result infrom investing in near month crude oil futures contracts and “rolling” those contracts forward each month is the price relationship between the current near month contract and the nextlater month contract. Ifcontracts. For example, if the price of the near month contract is higher than the next month contract (a situation referred to as “backwardation” in the futures market), then absent any other change there is a tendency for the price of a next month contract to rise in value as it becomes the near month contract and approaches expiration. Conversely, if the price of a near month contract is lower than the next month contract (a situation referred to as “contango” in the futures market), thanthen absent any other change there is a tendency for the price of a next month contract to decline in value as it becomes the near month contract and approaches expiration.
 
As an example, assume that the price of crude oil for immediate delivery (the “spot” price), was $50 per barrel, and the value of a position in the near month futures contract was also $50. Over time, the price of the barrel of crude oil will fluctuate up and down based on a number of market factors, including demand for oil relative to its supply. The value of the near month contract will likewise fluctuate up and down in reaction to a number of market factors. If investors seeksseek to maintain their holding in a near month contract position and not take delivery of the oil, every month they must sell their current near month contract as it approaches expiration and invest in the next month contract.

If the futures market is in backwardation, e.g., when the expected price of oil in the future would be less, the investor would be buying a next month contractscontract for a lower price than the current near month contract. Hypothetically, and assuming no other changes to either prevailing crude oil prices or the price relationship between the spot price, the near month contract and the next month contract (and ignoring the impact of commission costs and the interest earned on cash)Treasuries, cash and/or cash equivalents), the value of the next month contract would rise as it approaches expiration and becomes the new near month contract. In this example, the value of the $50 investment would tend to rise faster than the spot price of crude oil, or fall slower. As a result, it would be possible in this hypothetical example for the price of spot crude oil to have risen to $60 after some period of time, while the value of the investment in the futures contract willwould have risen to $65, assuming backwardation is large enough or enough time has elapsed. Similarly, the spot price of crude oil could have fallen to $40 while the value of an investment in the futures contract could have fallen to only $45. Over time, if backwardation remained constant, the difference would continue to increase.

If the futures market is in contango, the investor would be buying a next month contractscontract for a higher price than the current near month contract. Hypothetically, and assuming no other changes to either prevailing crude oil prices or the price relationship between the spot price, the near month contract and the next month contract (and ignoring the impact of commission costs and the interest earned on cash), the value of the next month contract would fall as it approaches expiration and becomes the new near month contract. In this example, it would mean that the value of the $50 investment would tend to rise slower than the spot price of crude oil, or fall faster. As a result, it would be possible in this hypothetical example for the spot price of spot crude oil to have risen to $60 after some period of time, while the value of the investment in the futures contract will have risen to only $55, assuming contango is large enough or enough time has elapsed. Similarly, the spot price of crude oil could have fallen to $45 while the value of an investment in the futures contract could have fallen to $50.$40. Over time, if contango remained constant, the difference would continue to increase.
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Historically, the oil futures oil markets have experienced periods of contango and backwardation, with backwardation being in place more often than contango. During the past two years, including 2006 and the first half of 2007, these markets have experienced contango. This hasHowever, starting early in the third quarter of 2007, the crude oil futures market moved into backwardation and remained in that condition for the rest of the year. The chart below compares the price of the front month contract to the average price of the first 12 months over the last 10 years (1998-2007). When the price of the front month contract is higher than the average price of the front 12 month contracts, the market would be described as being in backwardation. When the price of the front month contract is lower than the average price of the front 12 month contracts, the market would be described as being in contango. Although the prices of the front month contract and the average price of the front 12 month contracts do tend to move up or down together, it can be seen that at times the front month prices are clearly higher than the average price of the 12 month contracts (backwardation), and other times they are below the average price of the front 12 month contracts (contango).
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An alternative way to view the same data is to subtract the dollar price of the front month contract from the average dollar price of the front 12 month contracts. If the resulting number is a positive number, than the front month price is higher than the average price of the front 12 months and the market could be described as being in backwardation. If the resulting number is a negative number, than the front month price is lower than the average price of the front 12 months and the market could be described as being in contango. The chart below shows the results from subtracting the front month price from the average price of the front 12 month contracts for the 10 year period between 1998 and 2007.
A hypothetical investment in a portfolio that involved owning only the front month contract would produce a different result than a hypothetical investment in a portfolio that owned an equal number of each of the front 12 month’s worth of contracts. Generally speaking, when the crude oil futures market is in backwardation, the front month only portfolio would tend to have a higher total return than the 12 month portfolio. Conversely, if the crude oil futures market was in contango, the portfolio containing 12 months worth of contracts would tend to outperform the front month only portfolio. The chart below shows the hypothetical results of owning a portfolio consisting of the front month contract versus a portfolio containing the front 12 month’s worth of contracts. In this example, each month the front month only portfolio would sell the front month contract at expiration and buy the next month out contract. The portfolio holding an equal number of the front 12 month’s worth of contracts would sell the front month contract at expiration and replace it with the contract that becomes the new twelfth month contract.
As seen in the chart, there have been periods of both positive and negative annual total returns for both hypothetical portfolios over the last 10 years. In addition, there have been periods during which the front month only approach had higher returns, and periods where the 12 month approach had higher total returns.

Historically, the oil futures markets have experienced periods of contango and backwardation, with backwardation being in place more often than contango. During the past two years, including 2006 and the first half of 2007, these markets have experienced contango. However, starting early in the third quarter of 2007 the crude oil futures market moved into backwardation. While the investment objective of USOF is not to have the market price of its units match, dollar for dollar, changes in the spot price of oil, contango and backwardation have impacted the total return on an investment in USOF units during the past year relative to a hypothetical direct investment in crude oil. For example, an investment made in USOF units on April 10 and held to December 31, 2006 decreased, based uponmade during the changessecond quarter of 2007,  a period of contango in the closing market prices for USOF units on those days,crude oil markets, decreased by 23.03%-0.71%, while the spot price of crude oil for immediate delivery during the same period decreased 11.18%increased by 7.30%. Conversely, an investment made in USOF units during the third quarter of 2007, a period in which the crude oil futures market was mostly in backwardation, increased by 17.82% while the spot price of crude oil increased by 15.53% (note: this comparison ignoresthese comparisons ignore the potential costs associated with physically owning and storing crude oil). However, the investment objective of USOF is not to have the market price of its units match, dollar for dollar, changes in the spot price of oil or changes in the price of the Benchmark Contract. This periodwhich could be substantial).

These periods of contango didor backwardation do not meaningfully impact USOF’s investment objective of having percentage changes in its per unit priceNAV track percentage changes in the price of the Benchmark Oil Futures Contract since the impact of backwardation and contango tended to equally impact the percentage changes in price of both USOF’s units and the Benchmark Oil Futures Contract. It is impossible to predict with any degree of certainty whether backwardation or contango will occur in the future. It is likely that both conditions will occur during different periods.
Subsequent Events
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Crude oil market. During the year ended December 31, 2007, crude oil prices were impacted by several factors. On January 30, 2007, USOF hadthe consumption side, demand remained strong as continued global economic growth, especially in emerging economies such as China and India, remained brisk. Additionally, a follow-on public offeringfalling U.S. dollar, the currency in which crude oil is traded globally, continued to be weak, effectively making crude oil cheaper for most non-U.S. dolar economies. On the supply side, production remained steady despite concerns about violence impacting production in Iraq and Nigeria. At the same time, a concern remains about the ability of its units declared effective bymajor oil producing countries to continue to raise their production to accommodate increasing demand. Additionally, a concern about the strength of the U.S. Securitieseconomy, and Exchange Commission. The primary purposethe risk of that filing wasrecession which might lead to register an additional 50,000,000 units for sale.  This offering was combined with the registration statement on Form S-1 dated October 18, 2006 and included several changesU.S. decreasing its oil consumption in language and procedure.2008, began to be a factor in the crude oil markets very late in 2007.

Critical Accounting Policies

Preparation of the condensed financial statements and related disclosures in compliance with accounting principles generally accepted in the United States of America requires the application of appropriate accounting rules and guidance, as well as the use of estimates. USOF's application of these policies involves judgments and actual results may differ from the estimates used.
The General Partner has evaluated the nature and types of estimates that it makes in preparing USOF's condensed financial statements and related disclosures and has determined that the valuation of its investments which are not traded on a United States or internationally recognized futures exchange (such as forward contracts and over-the-counter contracts) involves a critical accounting policy. While not currently applicable given the fact that during the time period covered by this report, USOF was not investing in futures contracts not traded on a United States futures exchange toTo the extent USOF makes such investments, in the future, the values used by USOF for its forward contracts will be provided by its commodity broker who uses market prices when available, whilevalues over-the-counter contracts will be valued based on the present value of estimated future cash flows that would be received from or paid to a third party in settlement of these derivative contracts prior to their delivery date and valued on a daily basis. In addition, USOF estimates interest income on a daily basis using prevailing interest rates earned on its cash and cash equivalents. These estimates are adjusted to the actual amount received on a monthly basis and the difference, if any, is not considered material.

Liquidity and Capital Resources

USOF has not made, and does not anticipate making, use of borrowings or other lines of credit to meet its obligations. USOF has met, and it is anticipated that USOF will continue to meet, its liquidity needs in the normal course of business from the proceeds of the sale of its investments, or from the Treasuries, cash and/or short-term Treasuriescash equivalents that it intends to hold at all times. USOF’s liquidity needs include: redeeming units, providing margin deposits for its existing oil futures contractsOil Futures Contracts or the purchase of additional crude oil futures contracts and posting collateral for its over-the-counter contracts and payment of its expenses, summarized below under “Contractual Obligations.”

USOF currently generates cash primarily from (i) the sale of Creation Baskets and (ii) interest earned on cash.Treasuries, cash and/or cash equivalents. USOF has allocated substantially all of its nets assets to trading in oil interests. A significant portion of the NAV was held in Treasuries, cash and/or cash equivalents that waswere used as margin for USOF's trading in oil interests. Cash Treasuries, cash and/or Treasuriescash equivalents as a percentage of the total net assets vary from period to period as the market values of the oil interests change. The balance of the net assets is held in USOF's Oil Futures Contracts and Other Oil Interests trading account. Interest earned on USOF's interest bearing-funds is paid to USOF.
57

USOF's investment in oil interests may be subject to periods of illiquidity because of market conditions, regulatory considerations and other reasons. For example, commodity exchanges limit the fluctuations in Oil Futures Contracts prices during a single day by regulations referred to as “daily limits.” During a single day, no trades may be executed at prices beyond the daily limit. Once the price of an Oil Futures Contract has increased or decreased by an amount equal to the daily limit, positions in the contracts can neither be taken or liquidated unless the traders are willing to effect trades at or within the specified daily limit. Such market conditions could prevent USOF from promptly liquidating its positions in Oil Futures Contracts. During 2006,2007, USOF was not forced to purchase or liquidate any of its positions as a result ofwhile daily limits;limits were in effect; however, USOF cannot predict whether such an event may occur in the future. To date,
Prior to March 23, 2007, all ofpayments with respect to USOF's and the General Partner's expenses have been fundedwere paid by their affiliates. Neither USOF nor the General Partner havehas any obligation or intention to refund such payments by their affiliates. These affiliates are under no obligation to continue payment ofpay USOF's or the General Partner's current or future expenses. If such affiliates were to discontinue the payment of these expenses and the General Partner and USOF are unsuccessful in raising sufficient funds to cover USOF's expenses or in locating any other source of funding, USOF will terminate and investors may lose all or part of their investment.
 
Market Risk

Trading in Oil Futures Contracts and Other Oil Interests, such as forwards, involves USOF entering into contractual commitments to purchase or sell oil at a specified date in the future. The gross or face amount of the contracts will significantly exceed USOF's future cash requirements since USOF intends to close out its open positions prior to settlement. As a result, USOF is generally only subject to the risk of loss arising from the change in value of the contracts. USOF considers the "fair value'' of its derivative instruments to be the unrealized gain or loss on the contracts. The market risk associated with USOF's commitments to purchase oil is limited to the gross face amount of the contacts held. However, should USOF enter into a contractual commitment to sell oil, it would be required to make delivery of the oil at the contract price, repurchase the contract at prevailing prices or settle in cash. Since there are no limits on the future price of oil, the market risk to USOF could be unlimited.
USOF's exposure to market risk depends on a number of factors, including the markets for oil, the volatility of interest rates and foreign exchange rates, the liquidity of the Oil Futures Contracts and Other Oil Interests markets and the relationships among the contracts held by USOF. The limited experience that USOF has in utilizing its model to trade in oil interests in a manner intended to track the spot price of crude oil, as well as drastic market occurrences, could ultimately lead to the loss of all or substantially all of an investor’s capital.
57

Credit Risk

When USOF enters into Oil Futures Contracts and Other Oil Interests, it is exposed to the credit risk that the counterparty will not be able to meet its obligations. The counterparty for the Oil Futures Contracts traded on the New York Mercantile ExchangeNYMEX and on most other foreign futures exchanges is the clearinghouse associated with the particular exchange. In general, clearinghouses are backed by their members who may be required to share in the financial burden resulting from the nonperformance of one of their members, and therefore, this additional member support should significantly reduce credit risk. Some foreign exchanges are not backed by their clearinghouse members but may be backed by a consortium of banks or other financial institutions. During the period ended December 31, 2006, the only foreign exchange we made on investments of oil interests was the ICE Futures.
There can be no assurance that any counterparty, clearinghouse, or their members or their financial backers wouldwill satisfy their obligations to USOF in such circumstances. The General Partner attempts to manage the credit risk of USOF by following various trading limitations and policies. In particular, USOF posts margin and/or holds liquid assets that are approximately equal to the face amount of its obligations to counterparties under the Oil Futures Contracts and Other Oil Interests it holds. The General Partner has implemented procedures that include, but are not limited to, executing and clearing trades only with creditworthy parties and/or requiring the posting of collateral or margin by such parties for the benefit of USOF to limit its credit exposure. UBS Securities LLC, USOF's commodity broker, or any other broker that may be retained by USOF in the future, when acting as USOF's futures commission merchant in accepting orders to purchase or sell Oil Futures Contracts on United States exchanges, is required by CFTC regulations to separately account for and segregate as belonging to USOF, all assets of USOF relating to domestic Oil Futures Contracts trading. These commodity brokers areA futures commission merchant is not allowed to commingle USOF's assets with theirits other assets. In addition, the CFTC requires commodity brokers to hold in a secure account the USOF assets related to foreign Oil Futures Contracts trading. During the year ended December 31, 2007, the only foreign exchange on which USOF made investments was the ICE Futures, which is a London based futures exchange.  Those crude oil contracts are denominated in U.S. dollars.

Off Balance Sheet Financing

As of December 31, 2006,2007, USOF has no loan guarantee, credit support or other off-balance sheet arrangements of any kind other than agreements entered into in the normal course of business, which may include indemnification provisions relating to certain risks that service providers undertake in performing services thatwhich are in the best interests of USOF. While USOF's exposure under these indemnification provisions cannot be estimated, they are not expected to have a material impact on USOF's financial position.
58

Redemption Basket Obligation

In order to meet its investment objective and pay its contractual obligations described below, USOF requires liquidity to redeem units, which redemptions must be in blocks of 100,000 units called Redemption Baskets. USOF has to date satisfied this obligation by paying from the cash or cash equivalents it holds or through the sale of its Treasuries or cash in an amount proportionate to the number of Unitsunits being redeemed.
 
Contractual Obligations

USOF's primary contractual obligations are with the General Partner. In return for its services, the General Partner is entitled to a management fee calculated as a fixed percentage of USOF's NAV, currently .50%0.50% for ana NAV of $1 billion or less, and thereafter .20% of the0.20% for a NAV above $1 billion. The General Partner or its affiliate has agreed to pay the start-up costs associated with the formation of USOF, primarily its legal, accounting and other costs in connection with itsthe General Partner's registration with the CFTC as a commodity pool operator and the registration and listing of USOF and its units with the SEC and the American Stock Exchange,AMEX, respectively. However, certainthe costs of registering and listing additional sharesunits of USOF with the SEC may beare directly borne in the futureon an ongoing basis by USOF, and not by the General Partner, if the General Partner determines that such costs are no longer part of the start-up costs of USOF and instead are part of the ordinary on-going costs of USOF.Partner.

The General Partner has agreed to paypays the fees of the custodian and transfer agent, Brown Brothers Harriman & Co.BBH&Co., as well as Brown Brothers Harriman & Co.BBH&Co.'s fees for performing administrative services, including in connection with USOF'sthe preparation of itsUSOF's condensed financial statements and its SEC and CFTC reports. The General Partner will also paypays the fees of USOF's accountants and a separate firm for providing tax related services, as well as those of USOF's marketing agent, ALPS Distributors, Inc.the Marketing Agent. The General Partner isand USOF have also in the process of negotiatingentered into a licensing agreement with the New York Mercantile Exchange underNYMEX pursuant to which certainUSOF and the affiliated funds managed by the General Partner pay a licensing fees will be paidfee to the exchange by USOF.NYMEX.

InIn addition to the General Partner's management fee, USOF pays its brokerage fees (including fees to a futures commission merchant), over-the-counter dealer spreads, any licensing fees for the use of intellectual property, registration and, subsequent to the Broker (orinitial offering, the fees paid to the SEC, FINRA or any other Futures Clearing Merchant thatregulatory agency in connection with the General Partner may elect to use for execution or clearingoffer and sale of futures trades),units, as well as legal, printing, accounting and other expenses associated therewith, and extraordinary expenses. The latter are expenses not incurred in the ordinary course of itsUSOF's business, including expenses relating to the indemnification of any person against liabilities and obligations to the extent permitted by law and under the LP Agreement, the bringing or defending of actions in law or in equity or otherwise conducting litigation and incurring legal expenses and the settlement of claims and litigation. Commission payments to the Broker or any other Futures Clearing Merchanta futures commission merchant are on a contract-by-contract, or round turn, basis. USOF also pays a portion of the fees and expenses of the independent directors of the General Partner. See Note 3 to the Notes to Condensed Financial Statements.

The parties cannot anticipate the amount of payments that will be required under these arrangements for future periods, as USOF's NAVs and trading levels to meet its investment objectives will not be known until a future date. These agreements are effective for a specific term agreed upon by the parties withand have an option to renew, or, in some cases, are in effect for the duration of USOF's existence. The partiesEither party may terminate these agreements earlier for certain reasons listeddescribed in the agreements.    
5958

Item 7A. Quantitative and Qualitative Disclosure About Market Risk 
 
Over-the-Counter Derivatives (Including Spreads and Straddles)
 
In the future, USOF may purchase over-the-counter contracts. Unlike most of the exchange-traded oil futures contracts or exchange-traded options on such futures, each party to suchover-the-counter contract bears the credit risk that the other party may not be able to perform its obligations under its contract.
 
Some oil-based derivatives transactions contain fairly generic terms and conditions and are available from a wide range of participants. Other oil-based derivatives have highly customized terms and conditions and are not as widely available. Many of these over-the-counter contracts are cash-settled forwards for the future delivery of oil- or petroleum-based fuels that have terms similar to the Oil Futures Contracts. Others take the form of “swaps” in which the two parties exchange cash flows based on pre-determined formulas tied to the spot price of the crude oil, spot, or forward crude oil prices or crude oil futures prices. For example, USOF may enter into over-the-counter derivative contracts whose value will be tied to changes in the difference between the WTI spot price of light, sweet crude oil, the price of Oil Futures ContractContracts traded on New York Mercantile ExchangeNYMEX and the prices of other Oil Futures Contracts that may be invested in by USOF.
 
To protect itself from the credit risk that arises in connection with such contracts, USOF may enter into agreements with each counterparty that provide for the netting of its overall exposure to its counterparty, such as the agreements published by the International Swaps and Derivatives Association, Inc. USOF also may require that the counterparty be highly rated and/or provide collateral or other credit support to address USOF’s exposure to the counterparty. In addition, it is also possible for USOF and its counterparty to agree to clear their agreement through an established futures clearing house such as those connected to the NYMEX or the ICE Futures. In that event, USOF would no longer have credit risk of its original counterparty, as the clearing house would now be USOF's counterparty. USOF would still retain any price risk associated with its transaction.
 
USOF may employ spreads or straddles in its trading to mitigate the differences in its investment portfolio and its goal of tracking the price of the Benchmark Oil Futures Contract. USOF would use a spread when it chooses to take simultaneous long and short positions in futures written on the same underlying asset, but with different delivery months. The effect of holding such combined positions is to adjust the sensitivity of USOF to changes in the price relationship between futures contracts which will expire sooner and those that will expire later. USOF would use such a spread if the General Partner felt that taking such long and short positions, when combined with the rest of its holdings, would more closely track the investment goals of USOF, or the General Partner felt if it would lead to an overall lower cost of trading to achieve a given level of economic exposure to movements in oil prices. USOF would enter into a straddle when it chooses to take an option position consisting of a long (or short) position in both a call option and put option. The economic effect of holding certain combinations of put options and call options can be very similar to that of owning the underlying futures contracts. USOF would make use of such a straddle approach if, in the opinion of the General Partner, the resulting combination would more closely track the investment goals of USOF or if it would lead to an overall lower cost of trading to achieve a given level of economic exposure to movements in oil prices.
 
During the periodyear ended December 31, 2006,2007, USOF did not employ any hedging methods since all of its investments were made over an exchange. Therefore, USOF was not exposed to counterparty risk.
6059

Financial Statements and Supplementary Data.
 
Index to Financial Statements
 
 
6160

 

To the Partners of
United States Oil Fund, LP (formerly New York Oil ETF, LP)
 
We have audited the accompanying statements of financial condition of United States Oil Fund, LP, (formerly New York Oil ETF, LP) (the “Fund”) as of December 31, 2007, 2006 and 2005, including the schedule of investments as of December 31, 2007 and 2006, and the related statements of operations, changes in partners’ capital and cash flows for the year ended December 31, 2007, the period from April 10, 2006 (commencement of operations) through December 31, 2006 and the period from inception (MayMay 12, 2005) through2005 (inception) to December 31, 2005. These financial statements are the responsibility of the Fund’s management. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in all material respects, the financial position of United States Oil Fund, LP (formerly New York Oil ETF, LP) as of December 31, 2007, 2006 and 2005, and the results of its operations and its cash flows for the year ended December 31, 2007, the period from April 10, 2006 (commencement of operations) through December 31, 2006 and the period from inception (MayMay 12, 2005)2005 (inception) through December 31, 2005, in conformity with accounting principles generally accepted in the United States of America.
 
We also have audited, in accordance with standards of the Public Company Accounting Oversight Board (United States), the Fund's internal control over financial reporting as of December 31, 2007, based on criteria established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated March 1, 2008 expressed an unqualified opinion on the Fund's internal control over financial reporting.

/s/ SPICER JEFFRIES LLP       
 
Greenwood Village, Colorado
March 15, 20071, 2008
61

 
United States Oil Fund, LP
        
Statements of Financial Condition
        
At December 31, 2007, 2006 and 2005
        
         
         
  2007  2006 2005 
Assets        
Cash and cash equivalents $354,816,049 $
712,883,812
 $1,000 
Equity in UBS Securities LLC trading accounts:          
Cash  86,330,750  87,123,636  - 
Unrealized gain (loss) on open commodity futures contracts  35,705,020  (34,383,000) - 
Receivable for units sold  7,581,679  36,080,896  - 
Interest receivable  962,551  2,626,230  - 
Other assets  420,705  17,000  - 
           
Total assets $485,816,754 $804,348,574 $1,000 
          
Liabilities and Partners' Capital         
General Partner management fees (Note 3) $226,782 $332,736 $- 
    Accrued Tax Reporting Costs  239,954  -  - 
    License Fee Payable  47,788  22,198  - 
    Accrued Directors' Fees  33,235  -  - 
Brokerage commissions payable  22,886  44,386  - 
Other liabilities  23,372  -  - 
           
Total liabilities  594,017  399,320  - 
           
Commitments and Contingencies (Notes 3, 4 and 5)
          
           
Partners' Capital          
General Partner  -  -  20 
Limited Partners  485,222,737  803,949,254  980 
Total Partners' Capital  485,222,737  803,949,254  1,000 
           
Total liabilities and partners' capital $485,816,754 $804,348,574 $1,000 
           
           
Limited Partners' units outstanding  6,400,000  15,500,000  - 
Net asset value per unit $75.82 $51.87 $- 
Market value per unit $75.75 $51.60 $- 
           
           
See accompanying notes to financial statements.          
62

United States Oil Fund, LP
       
Schedule of Investments
       
At December 31, 2007
       
        
        
Open Futures Contracts       
    Gain on Open   
  Number of Commodity % of Partners' 
  Contracts Contracts Capital 
Foreign Contracts          
Crude Oil Future contracts, expires February 2008  300  $2,361,000  0.49  
           
United States Contracts          
Crude Oil Future contracts, expires February 2008  4,754  33,344,020  6.87 
   5,054 $35,705,020  7.36 
           
Cash Equivalents       
  Cost Market Value   
United States - Money Market Funds       
Goldman Sachs Financial Square Funds - Treasury Instruments Fund $253,701,525  253,701,525  52.28 
  $253,701,525  253,701,525  52.28 
Cash  101,114,524  20.84 
Total cash and cash equivalents  354,816,049  73.12 
        
Cash on deposit with broker  86,330,750  17.79 
Other assets in excess of liabilities  8,370,918  1.73 
Total Partners' Capital $485,222,737  100.00 
        
United States Oil Fund, LP
       
Schedule of Investments
       
At December 31, 2006
       
        
        
Open Futures Contracts       
    Loss on Open   
  Number of Commodity % of Partners' 
  Contracts Contracts Capital 
United States Contracts
          
Crude Oil Future contracts, expires February 2007  13,171 $(34,383,000 (4.28
           
Cash Equivalents       
  Cost Market Value   
United States - Money Market Funds       
AIM STIT- Liquid Asset Portfolio $171,344,554  171,344,554  21.31 
AIM STIT- STIC Prime Portfolio  171,230,961  171,230,961  21.30 
Goldman Sachs Financial Square Funds - Prime Obligations Fund  190,268,507  190,268,507  23.67 
  $532,844,022  532,844,022  66.28 
Cash  180,039,790  22.39 
Total cash and cash equivalents  712,883,812  88.67 
        
Cash on deposit with broker  87,123,636  10.84 
Other assets in excess of liabilities  38,324,806  4.77 
Total Partners' Capital $803,949,254  100.00 
        
        
See accompanying notes to financial statements.       
United States Oil Fund, LP
     
Statements of Financial Condition
     
December 31, 2006 and 2005
     
      
      
  
2006
 
2005
 
Assets
     
Cash and cash equivalents $712,883,812 $1,000 
Equity in UBS Securities LLC trading accounts:       
Cash  87,123,636  - 
Unrealized loss on open commodity futures contracts  (34,383,000) - 
Receivable for units sold  36,080,896  - 
Interest receivable  2,626,230  - 
Other assets  17,000  - 
        
Total assets
 $804,348,574 $1,000 
       
Liabilities and Partners' Capital
      
General Partner management fees (Note 3) $332,736 $- 
Commissions payable  44,386  - 
Other liabilities  22,198  - 
        
Total liabilities
  399,320  - 
        
Commitments and Contingencies (Notes 3, 4 and 5)
       
        
Partners' Capital
       
General Partner  -  20 
Limited Partners  803,949,254  980 
Total Partners' Capital
  803,949,254  1,000 
        
Total liabilities and partners' capital
 $804,348,574 $1,000 
        
        
Limited Partners' units outstanding, December 31, 2006  15,500,000  - 
Net asset value per unit (commencement of operations, April 10, 2006) $67.39 $- 
Net asset value per unit, December 31, 2006 $51.87 $- 
Market value per unit, December 31, 2006 $51.60 $- 
        
        
See accompanying notes to financial statements.
       
63

 
United States Oil Fund, LP
       
Schedule of Investments
       
December 31, 2006
       
        
        
        
Open Futures Contracts
       
    
Loss on Open
   
  
Number of
 
Commodity
 
% of Partners'
 
  
Contracts
 
Contracts
 
Capital
 
United States Contracts
       
Crude Oil Future contracts, expires February 2007  13,171 $(34,383,000) (4.28)
           
        
Statements of Operations
        
For the year ended December 31, 2007, the period from April 10, 2006 (commencement of operations) to
      
December 31, 2006 and the period from May 12, 2005 (inception) to December 31, 2005
      
         
    Period from  Period from 
  Year ended April 10, 2006 to  May 12, 2005 to 
  December 31, 2007 December 31, 2006  December 31, 2005 
         
Income        
Gains (losses) on trading of commodity futures contracts:        
Realized gains (losses) on closed positions $185,522,880 $(104,063,960)$- 
Change in unrealized gains (losses) on open positions  70,088,020  (34,383,000) - 
Interest income  34,845,846  13,930,431   - 
Other income  297,000  129,000  
 -
 
           
Total income (loss)  290,753,746  (124,387,529)  - 
           
Expenses          
General Partner management fees (Note 3)  3,622,613  1,460,448   - 
Brokerage commissions  1,184,956  478,713   - 
Other expenses  1,530,281  22,198   - 
           
Total expenses  6,337,850  1,961,359   - 
           
Net income (loss) $284,415,896 $(126,348,888)$ - 
Net income (loss) per limited partnership unit $23.95 $(15.52)$ - 
Net income (loss) per weighted average limited partnership unit $20.71 $(18.00)$ - 
Weighted average limited partnership units outstanding  13,730,137  7,018,797   - 
           
           
See accompanying notes to financial statements.          
 
Cash Equivalents
       
  
Cost
 
Market Value
   
United States - Money Market Funds
       
AIM STIT- Liquid Assets Portfolio $171,344,554 $171,344,554  21.31 
AIM STIT- STIC Prime Portfolio  171,230,961  171,230,961  21.30 
Goldman Sachs Financial Square Funds - Prime Obligations Fund  190,268,507  190,268,507  23.67 
  $532,844,022  532,844,022  66.28 
Cash  180,039,790  22.39 
Total cash and cash equivalents  712,883,812  88.67 
        
Cash on deposit with broker
  87,123,636  10.84 
Other assets in excess of liabilities
  38,324,806  4.77 
Total Partners' Capital
 $803,949,254  100.00 
        
        
See accompanying notes to financial statements.
       
64

 
     
Statements of Operations
     
For the period from (April 10, 2006) commencement of operations to December 31, 2006
   
and the period from (May 12, 2005) inception to December 31, 2005
   
      
      
  
2006
 
2005
 
      
Income
     
Gains (losses) on trading of commodity futures contracts:     
Realized losses on closed positions $(104,063,960)$- 
Change in unrealized losses on open positions  (34,383,000) - 
Interest income  13,930,431  - 
Other income  129,000  - 
        
Total loss
  (124,387,529) - 
        
Expenses
       
General Partner management fees (Note 3)  1,460,448  - 
Brokerage commissions  478,713  - 
Other expenses  22,198  - 
        
Total expenses
  1,961,359  - 
        
Net loss
 $(126,348,888)$- 
Net loss per limited partnership unit
 $(15.52)$- 
Net loss per weighted average limited partnership unit
 $(18.00)$- 
Weighted average limited partnership units outstanding
  7,018,797  - 
        
        
See accompanying notes to financial statements.
       
       
Statements of Changes in Partners' Capital
     
For the year ended December 31, 2007, the period from April 10, 2006 (commencement of operations) to
 
December 31, 2006 and the period from May 12, 2005 (inception) to December 31, 2005       
        
        
  General Partner Limited Partners Total 
        
       Balances, at Inception $- $- $- 
       Initial contribution of capital  20  980  1,000 
           
       Balances, at December 31, 2005  20  980  1,000 
       Addition of 29,000,000 partnership units  -  1,740,249,722  1,740,249,722 
       Redemption of 13,500,000 partnership units  (20 (809,952,560 (809,952,580
       Net loss  -  (126,348,888 (126,348,888
           
Balances, at December 31, 2006  -  803,949,254  803,949,254 
Addition of 78,400,000 partnership units  -  4,402,551,383  4,402,551,383 
Redemption of 87,500,000 partnership units  -  (5,005,693,796) (5,005,693,796)
Net income  -  284,415,896  284,415,896 
           
Balances, at December 31, 2007 $- $485,222,737 $485,222,737 
         
           
Net Asset Value Per Unit          
At December 31, 2005 $-       
At April 10, 2006 (commencement of operations) $67.39       
At December 31, 2006 $51.87       
At December 31, 2007 $75.82       
           
See accompanying notes to financial statements.      
 
65

        
Statements of Cash Flows
        
For the year ended December 31, 2007, the period from April 10, 2006 (commencement of operations) to
      
December 31, 2006 and the period from May 12, 2005 (inception) to December 31, 2005
      
     Period from  Period from 
  Year ended April 10, 2006 to  May 12, 2005 to 
  December 31, 2007 December 31, 2006  December 31, 2005 
         
Cash Flows from Operating Activities:        
Net income (loss) $284,415,896 $(126,348,888)$ - 
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:          
Decrease (increase) in commodity futures trading account - cash  792,886  (87,123,636)  - 
Unrealized gains (losses) on futures contracts  (70,088,020 34,383,000   - 
Decrease (increase) in interest receivable and other assets  1,259,974  (2,643,230)  - 
Decrease (increase) in management fees payable  (105,954 332,736   - 
Decrease (increase) in commissions payable  (21,500 44,386   - 
Increase in other liabilities  322,151  22,198   - 
Net cash provided by (used in) operating activities  216,575,433  (181,333,434)  - 
           
Cash Flows from Financing Activities:          
Subscription of partnership units  4,431,050,600  1,704,168,826  1,000 
Redemption of partnership units  (5,005,693,796) (809,952,580)  - 
           
Net cash provided by (used in) financing activities  (574,643,196 894,216,246  1,000 
           
Net Decrease (Increase) in Cash and Cash Equivalents  (358,067,763 712,882,812   1,000 
           
Cash and Cash Equivalents, beginning of period
  712,883,812  1,000   - 
Cash and Cash Equivalents, end of period
 $354,816,049 $712,883,812 $1,000 
          
           
See accompanying notes to financial statements.          
 
       
Statements of Changes in Partners' Capital
     
For the period from (April 10, 2006) commencement of operations to December 31, 2006
 
and the period from (May 12, 2005) inception to December 31, 2005
   
        
        
        
  
General Partner
 
Limited Partners
 
Total
 
        
Balances, at Inception
 $- $- $- 
Initial contribution of capital  20  980  1,000 
           
Balances, at December 31, 2005
  20  980  1,000 
Addition of 29,000,000 partnership units  -  1,740,249,722  1,740,249,722 
Redemption of 13,500,000 partnership units  (20) (809,952,560) (809,952,580)
Net loss  -  (126,348,888) (126,348,888)
           
Balances, at December 31, 2006
 $- $803,949,254 $803,949,254 
         
           
Net Asset Value Per Unit
          
At December 31, 2005 $-       
At April 10, 2006 (commencement of operations) $67.39       
At December 31, 2006 $51.87       
           
See accompanying notes to financial statements.
      
66

     
Statements of Cash Flows
     
Period from (April 10, 2006) commencement of operations to December 31, 2006
   
and the period from (May 12, 2005) inception to December 31, 2005
   
      
  
2006
 
2005
 
      
Cash Flows from Operating Activities:
     
Net loss $(126,348,888)$- 
Adjustments to reconcile net loss to net cash       
used in operating activities:       
Increase in commodity futures trading account - cash  (87,123,636) - 
Increase in unrealized loss on futures contracts  34,383,000  - 
Increase in interest receivable and other assets  (2,643,230) - 
Increase in management fees payable  332,736  - 
Increase in commissions payable  44,386  - 
Increase in other liabilities  22,198  - 
Net cash used in operating activities
  (181,333,434) - 
        
Cash Flows from Financing Activities:
       
Subscription of partnership units  1,704,168,826  1,000 
Redemption of partnership units  (809,952,580) - 
        
Net cash provided by financing activities
  894,216,246  1,000 
        
Net Increase in Cash and Cash Equivalents
  712,882,812  1,000 
        
Cash and Cash Equivalents, beginning of period
  1,000  - 
Cash and Cash Equivalents, end of period
 $712,883,812 $1,000 
       
        
See accompanying notes to financial statements.
       
67

United States Oil Fund, LP
(formerly New York Oil ETF, LP)
Notes to Financial Statements
For the years ended December 31, 2007, 2006 and 2005
 
NOTE 1 - ORGANIZATION AND BUSINESS

United States Oil Fund, LP (formerly New York Oil ETF, LP) (the “Fund”("USOF"), was organized as a limited partnership under the laws of the state of Delaware on May 12, 2005 and changed its name on September 30, 2005. The FundDelaware. USOF is a commodity pool that issues units that may be purchased and sold on the American Stock Exchange. The FundExchange (the "AMEX"). USOF will continue in perpetuity, unless terminated sooner upon the occurrence of one or more events as described in its FirstFourth Amended and Restated Agreement of Limited Partnership Agreement (the “Limited Partnership Agreement”"LP Agreement"). The investment objective of the FundUSOF is for the changes in percentage terms of its net asset value to reflect the performancechanges in percentage terms of the price of light, sweet crude oil delivered to Cushing, Oklahoma, as measured by the changes in the price of the futures contract on light, sweet crude oil as traded on the New York Mercantile Exchange (the "NYMEX") that is the near month contract to expire, except when the near month contract is within two weeks of expiration, in which case the futures contract will be the next month contract to expire, less the Fund’sUSOF's expenses. The FundUSOF will accomplish its objectivesobjective through investments in futures contracts for light, sweet crude oil, and other types of crude oil, heating oil, gasoline, natural gas and other petroleum-based fuels that are traded on the New York Mercantile Exchange andNYMEX, ICE Futures or other U.S. and foreign exchanges (“Oil(collectively, "Oil Futures Contracts”Contracts") and other oil interestsoil-related investments such as cash-settled options on Oil Futures Contracts, forward contracts for oil, and over-the-counter transactions that are based on the price of oil.crude oil, heating oil, gasoline, natural gas and other petroleum-based fuels, Oil Futures Contracts and indices based on the foregoing (collectively, "Other Oil Interests"). As of December 31, 2007, USOF held 4,754 Oil Futures Contracts traded on the NYMEX and 300 Oil Futures Contracts traded on the ICE Futures.
USOF commenced operations on April 10, 2006 and has a fiscal year ending on December 31. Victoria Bay Asset Management, LLC is the general partner of the Fund (the “General Partner”"General Partner") and is also responsible for the management of the Fund. The Fund commenced operations on April 10, 2006.USOF. The General Partner is a member of the National Futures Association (“NFA”(the "NFA") and isbecame a commodity pool operator with the Commodity Futures Trading Commission effective December 1, 2005. The General Partner is also the general partner of United States Natural Gas Fund, has a fiscal year endingLP ("USNG"), United States 12 Month Oil Fund, LP ("US12OF") and United States Gasoline Fund, LP ("USG") which listed their units on the AMEX under the ticker symbols "UNG" on April 18, 2007, "USL" on December 31.6, 2007 and "UGA" on February 26, 2008, respectively.
 
The FundUSOF issues limited partnership interests (“Units”("units") to certain authorized purchasers ("Authorized Purchasers") by offering creation baskets consisting of 100,000 Units (“("Creation Baskets”Baskets"units through a marketing agent.ALPS Distributors, Inc. (the "Marketing Agent"). The purchase price for a Creation Basket is based upon the net asset value of a Fund Unit.unit determined as of 4:00 p.m. New York time on the day the order to create the basket is properly received. In addition, authorized purchasers pay the FundUSOF a $1,000 fee for the creation of each order to create one or more Creation Basket. The initial offering price of the initial creation basket was based on the closing price of the near month oil futures contracts as traded and reported on the New York Mercantile Exchange on the last business day prior to the effective date. Additionally, subsequent to the sale of the initial Creation Basket,Baskets. Units can be purchased or sold on a nationally recognized securities exchange in smaller increments.increments than a Creation Basket. Units purchased or sold on a nationally recognized securities exchange are not made at the net asset value of the FundUSOF but rather at market prices quoted on the stocksuch exchange.

 
NOTE 2 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Revenue Recognition

Commodity futures contracts, forward contracts, physical commodities, and related options are recorded on the trade date. All such transactions are recorded on the identified cost basis and marked to market daily. Unrealized gains or losses on open contracts are reflected in the statement of financial condition and in the difference between the original contract amount and the market value (as determined by exchange settlement prices for futures contracts and related options and cash dealer prices at a predetermined time for forward contracts, physical commodities, and their related options) as of the last business day of the year or as of the last date of the financial statements. Changes in the unrealized gains or losses between periods are reflected in the statement of operations. The FundUSOF earns interest on its assets denominated in U.S. dollars on deposit atwith the Brokerfutures commission merchant at the 90-day Treasury bill rate less fifty basis points for deposits denominated in U.S. dollars.rate. In addition, USOF earns interest on funds held at the custodian at prevailing market rates earned on such investments.

Brokerage Commissions

Brokerage commissions on all open commodity futures contracts are accrued on a full-turn basis.
68

Income Taxes

The FundUSOF is not subject to federal income taxes; each partner reports his/her allocable share of income, gain, loss deductions or credits on his/her own income tax return.

Additions and Redemptions

Authorized personsPurchasers may purchase Creation Baskets from USOF as of the beginning of each business day based upon the prior day's net asset value. Authorized Purchasers may redeem Unitsunits from the FundUSOF only in blocks of 100,000 Unitsunits called “Redemption Baskets”. The amount of the redemption proceeds for a Redemption Basket will be equal to the net asset value of the Fund Unitsunits in the Redemption Basket.Basket determined as of 4:00 p.m. New York time on the day the order to redeem the basket is properly received.

USOF receives or pays the proceeds from units sold or redeemed one business day after the trade-date of the purchase or redemption. The amount due from Authorized Purchasers is reflected in USOF's condensed statement of financial condition as receivable for units sold, and amounts payable to Authorized Purchasers upon redemption are reflected as payable for units redeemed.
67

Partnership Capital and Allocation of Partnership Income and Losses

Profit or loss shall be allocated among the partners of the FundUSOF in proportion to the number of Unitsunits each partner holds as of the close of each month. The General Partner may revise, alter or otherwise modify this method of allocation as described in the Limited PartnershipLP Agreement.

Calculation of Net Asset Value

The FundUSOF calculates net asset value on each trading day by taking the current market value of its total assets, subtracting any liabilities and dividing the amount by the total number of Unitsunits issued and outstanding. The FundUSOF uses the New York Mercantile Exchange closing price for the contracts on the relevant exchange on that day forto determine the value of contracts held on the New York Mercantile Exchange.

Loss per Limited Partnership Unitsuch exchange.

Net lossIncome (Loss) per limited partnership Unit

Net income (loss) per unit is the difference between the net asset value per Unitunit at the beginning of each period and at the end of each period. The weighted average number of limited partnership Unitsunits outstanding was computed for purposes of disclosing net loss per weighted average limited partnership Unit.unit. The weighted average limited partnership Unitsunits are equal to the number of Unitsunits outstanding at the end of the period, end, adjusted proportionately for Unitsunits redeemed based on their respectivethe amount of time the units were outstanding during such period. There were no Unitsunits held by the General Partner at December 31, 2006.2007.
Offering Costs

Cash EquivalentsOffering costs incurred in connection with the registration of additional units after the initial registration of units are borne by USOF. These costs include registration fees paid to regulatory agencies and all legal, accounting, printing and other expenses associated therewith. These costs will be accounted for as a deferred charge and thereafter amortized to expense over twelve months on a straight line basis or a shorter period if warranted. 

As of December 31, 2006, cashCash Equivalents

Cash and cash equivalents includedinclude money market portfolios and overnight time deposits with original maturity dates of three months or less.

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires the Fund’sUSOF’s management to make estimates and assumptions that affect the reported amount of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statement,statements, and the reported amounts of the revenue and expenses during the reporting period. Actual results could differ from those estimates.estimates and assumptions.
 
NOTE 3 - GENERAL PARTNER MANAGEMENT FEEFEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS

General Partner Management Fee

Under the Limited PartnershipLP Agreement, the General Partner is responsible for investing the assets of the FundUSOF in accordance with the objectives and policies of the Fund.USOF. In addition, the General Partner has arranged for one or more third parties to provide administrative, custody, accounting, transfer agency and other necessary services to the Fund.USOF. For these services, the FundUSOF is contractually obligated to pay the General Partner a fee, which is paid monthly and based on average daily net assets, that areis equal to .50%0.50% per annum on average net assets of $1,000,000,000 or less and .20%0.20% per annum ofon average daily net assets that are greater than $1,000,000,000. The Fund will pay for all brokerage fees, taxes and other expenses, including licensing fees for
Ongoing Registration Fees and Other Offering Expenses

Since January 19, 2007, offering costs incurred in connection with the useregistration of intellectual property,additional units are borne by USOF. These costs include registration or other fees paid to the Securities and Exchange Commission, the National Association of Securities Dealers, or any other regulatory agencyagencies in connection with the offer and sale of subsequent Units after its initial registrationunits, and all legal, accounting, printing and other expenses associated therewith. The Fund also payswith such offer and sale. For the year ended December 31, 2007, and the periods ended December 31, 2006 and December 31, 2005, USOF incurred $437,973, $0 and $0, respectively in registration fees and other offering expenses. 
Director's Fees
USOF is responsible for paying the fees and expenses, including the directorsdirectors' and officers’officers' liability insurance, of the independent directors.
Fordirectors of the period ended December 31, 2006,General Partner who are also audit committee members. USOF shares these fees with US12OF and USNG based on the relative assets of each fund, computed on a daily basis. These fees for the calendar year 2007 amounted to a total of $286,000 for all of the Fund's offering and organizational expenses have been funded by an affiliate of the General Partner.  The Fund does not have any obligation or intention to reimburse such payments.  The Fund incurred offering and organizational costs in the amount of $1,571,318.
funds.
6968

Licensing Fees
As discussed in Note 4, USOF entered into a licensing agreement with the NYMEX on May 30, 2007. The agreement has an effective date of April 10, 2006. Pursuant to the agreement, USOF and the affiliated funds managed by the General Partner pay a licensing fee that is equal to 0.04% for the first $1,000,000,000 of combined assets of the funds and 0.02% for combined assets above $1,000,000,000. Since inception, USOF has incurred $407,533 under this arrangement.
Investor Tax Reporting Cost
The fees and expenses associated with USOF's tax accounting and reporting requirements, with the exception of certain initial implementation service fees and base service fees which are borne by the General Partner, are paid by USOF. These costs are estimated to be $450,000 for the year ended December 31, 2007. 
Other Expenses and Fees
In addition to the fees described above, USOF pays all brokerage fees, taxes and other expenses in connection with the operation of USOF, excluding costs and expenses paid by the General Partner as outlined in Note 4.
NOTE 4 - CONTRACTS AND AGREEMENTS

The FundUSOF is party to a marketing agent agreement, dated as of March 13, 2006, with ALPS Distributors Inc. (“ALPS”), a Colorado corporation,the Marketing Agent, whereby ALPSthe Marketing Agent provides certain marketing services for the FundUSOF as outlined in the agreement. The fees of the marketing agent,Marketing Agent, which are borne by the General Partner, include a marketing fee of $425,000 per annum plus the following incentive fee: zero basis points0.00% on FundUSOF's assets from $0 - $500 million; 4 basis points0.04% on FundUSOF's assets from $500 million - $4 billion; and 3 basis points0.03% on FundUSOF's assets in excess of $4 billion.

The above fees do not include the following expenses, which are also borne by the General Partner: the cost of placing advertisements in various periodicals; web construction and development; or the printing and production of various marketing materials.

The FundUSOF is also party to a custodian agreement, dated March 13, 2006, with Brown Brothers Harriman & Co. (“Brown Brothers”("BBH&Co."), whereby Brown BrothersBBH&Co. holds investments on behalf of the Fund.USOF. The General Partner of the Fund pays the fees of the custodian, which shall be agreed todetermined by the parties from time to time between the parties.time. In addition, the FundUSOF is party to an administrative agency agreement dated, March 13, 2006, also with Brown Brothers,the General Partner and BBH&Co., whereby Brown BrothersBBH&Co. acts as the administrative agent, transfer agent and registrar for the Fund.USOF. The General Partner also pays the fees of Brown BrothersBBH&Co. for its services under this agreement and such fees will be determined by the parties from time to time.

Currently, the General Partner pays Brown BrothersBBH&Co. for its services, in the foregoing capacitycapacities, the greater of a minimum amount of $300,000$125,000 annually or an asset-based charge of (a) 0.06% for the first $500 million of USOF's, USNG's, US12OF's and once the Fund’sUSG's combined net assets, are above(b) 0.0465% for USOF's, USNG's, US12OF's and USG's combined net assets greater than $500 million an asset charge, which is not reflectedbut less than $1 billion, and (c) 0.035% for USOF's, USNG's, US12OF's and USG's combined net assets in either agreement, ranging between 0.035% and 0.06%, plusexcess of $1 billion. The General Partner also pays a $50,000$25,000 annual fee for the transfer agency fee,services and transaction charges offees ranging from $7.00 to $15.00 per transaction.

The FundUSOF invests primarily in oil futures contractsOil Futures Contracts traded on the New York Mercantile Exchange (the “Exchange”). The FundNYMEX. On May 30, 2007, USOF and the Exchange are discussing enteringNYMEX entered into and in the process of finalizing a License Agreementlicense agreement whereby the Fund will beUSOF was granted a non-exclusive license to use certain of the Exchange’sNYMEX's settlement prices and service marks. The agreement has an effective date of April 10, 2006. Under the proposed License Agreement,license agreement, USOF and the Exchange would receiveaffiliated funds managed by the General Partner pay the NYMEX an asset-based fee for the license, the terms of which will be paid by the Fund.are described in Note 3.

The FundUSOF expressly disclaims any association with the ExchangeNYMEX or endorsement of the FundUSOF by the ExchangeNYMEX and acknowledges that “NYMEX” and “New York Mercantile Exchange” are registered trademarks of such Exchange.the NYMEX.

The FundUSOF has entered into a brokerage agreement with UBS Securities LLC formerly ABN AMRO Incorporated,("UBS Securities"). The agreement requires UBS Securities to provide services to USOF in connection with the purchase and sale of Oil Futures Commission Merchant (the “Broker”).Contracts and Other Oil Interests that may be purchased and sold by or through UBS Securities for USOF's account. The agreement provides that the BrokerUBS Securities charge the FundUSOF commissions of approximately $7 $7 per round-turn trade, plus applicable exchange and NFA fees for futures contractsOil Futures Contracts and options on futures contracts. 
Oil Futures Contracts.
69

NOTE 5 - FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES

The FundUSOF engages in the speculative trading of U.S. futures contractsOil Futures Contracts and options on U.S. futures contractsOil Futures Contracts (collectively, “derivatives”"derivatives"). The FundUSOF is exposed to both market risk, which is the risk arising from changes in the market value of the contracts;contracts, and credit risk, which is the risk of failure by another party to perform according to the terms of a contract.

All of the contracts currently traded by the FundUSOF are exchange traded.exchange-traded. The risks associated with exchange-traded contracts are generally perceived to be less than those associated with over-the-counter transactions since, in over-the-counter transactions, the FundUSOF must rely solely on the credit of their respective individual counterparties. However, in the future, if the FundUSOF were to enter into non-exchange traded contracts, it would be subject to the credit risk associated with counterparty non-performance. The credit risk from counterparty non-performance associated with such instruments is the net unrealized gain, if any. The CompanyUSOF also has credit risk since the sole counterparty to all domestic and foreign futures contracts is the exchange clearing corporation.on which the relevant contracts are traded. In addition, the FundUSOF bears the risk of financial failure by the clearing broker.
70

The purchase and sale of futures and options on futures contracts requiresrequire margin deposits with a Futures Commission Merchant (“FCM”).futures commission merchant. Additional deposits may be necessary for any loss on contract value. The Commodity Exchange Act requires an FCMa futures commission merchant to segregate all customer transactions and assets from the FCM’sfutures commission merchant’s proprietary activities.

The Fund’sUSOF’s cash and other property, such as U.S. Treasury Bills, deposited with an FCMa futures commission merchant are considered commingled with all other customer funds subject to the FCM’sfutures commission merchant’s segregation requirements. In the event of an FCM’sa futures commission merchant’s insolvency, recovery may be limited to a pro rata share of segregated funds available. It is possible that the recovered amount could be less than the total of cash and other property deposited.

USOF invests its cash in money market funds that seek to maintain a stable net asset value. USOF is exposed to any risk of loss associated with an investment in these money market funds. As of December 31, 2007, 2006 and 2005, USOF had deposits in domestic and foreign financial institutions in the amount of $187,445,274, $180,039,790 and $0, respectively. This amount is subject to loss should these institutions cease operations.
For derivatives, risks arise from changes in the market value of the contracts. Theoretically, the FundUSOF is exposed to a market risk equal to the value of futures contracts purchased and unlimited liability on such contracts sold short. As both a buyer and a seller of options, the FundUSOF pays or receives a premium at the outset and then bears the risk of unfavorable changes in the price of the contract underlying the option.

The Fund’sUSOF’s policy is to continuously monitor its exposure to market and counterparty risk through the use of a variety of financial, position and credit exposure reporting controls and procedures. In addition, the FundUSOF has a policy of reviewingrequiring review of the credit standing of each broker of counterparty with which it conducts business.

The financial instruments held by the FundUSOF are reported in theits statement of financial condition at market or fair value, or at carrying amounts that approximate fair value, because of their highly liquid nature and short-term maturity.

The Fund received a letter from
Goldman, Sachs & Co. (“Goldman Sachs”) sent USOF a letter on March 17, 2006, providing USOF and the FundGeneral Partner notice under 35 U.S.C. Section 154(d) of two pending United States patent applications, Publication Nos. 2004/0225593A1 and 2006/0036533A1. The Fund is currently reviewing the Goldman Sachs published patent applications, and has engaged in discussions with Goldman Sachs regarding their pending applications and the Fund’s own pending patent application. At this time, due in part to the fact that the Goldman SachsBoth patent applications are pendinggenerally directed to a method and have not been issued assystem for creating and administering a publicly traded interest in a commodity pool. In particular, the Abstract of each patent application defines a means for creating and administering a publicly traded interest in a commodity pool that includes the steps of forming a commodity pool having a first position in a futures contract and a corresponding second position in a margin investment, and issuing equity interests of the commodity pool to third party investors. Subsequently, two U.S. Patents were issued; the Fund is unable to determine whatfirst, patent number US7,283,978B2, was issued on October 16, 2007, and the outcome of this matter will be.second, patent number US7,319,984B2, was issued on January 15, 2008.

Preliminarily, USOF's management is of the view that the structure and operations of USOF and its affiliated commodity pools do not infringe these patents. USOF is also in the process of reviewing prior art (prior structures and operations of similar investment vehicles) that may invalidate one or more of the claims in these patents. In addition, USOF has retained patent counsel to advise it on these matters and is in the process of obtaining their opinions regarding the non-infringement of each of these patents by USOF and/or the patents' invalidity based on prior art. If the patents were alleged to apply to USOF's structure and/or operations, and are found by a court to be valid and infringed, Goldman Sachs may be awarded significant monetary damages and/or injunctive relief. See “USOF's Operating Risks — Third parties may infringe upon or otherwise violate intellectual property rights or assert that the General Partner has infringed or otherwise violated their intellectual property rights, which may result in significant costs and diverted attention.”
70

NOTE 6 - FINANCIAL HIGHLIGHTS

The following table presents per Unitunit performance data and other supplemental financial data for the year ended December 31, 2007, the period from April 10, 2006 (commencement of operations) to December 31, 2006 and the period from May 12, 2005 (inception) to December 31, 2005 for the limited partners. This information has been derived from information presented in the condensed financial statements.
 
 April 10, 2006 
 (commencement of     For the period from For the period from 
 operations) to   Year ended  April 10, 2006 to May 12, 2005 to 
 December 31, 2006   December 31, 2007  December 31, 2006 December 31, 2005 
           
Per Unit Operating Performance:
           
           
Net asset value, beginning of period $67.39  $ 51.87  $67.39 $ - 
Total loss  (15.24)
Total income (loss)  24.41   (15.24)  - 
Total expenses  (0.28)   (0.46)  (0.28)  - 
Net decrease in net asset value  (15.52)
Net increase (decrease) in net asset value   23.95   (15.52)  - 
Net asset value, end of period $51.87  $ 75.82  $51.87   - 
             
Total Return
  (23.03)%   46.17%  (23.03)%  -%
             
Ratios to Average Net Assets (annualized)
             
Total loss  (42.59)%
Total income (loss)   39.68%  (42.59)%  -%
Expenses excluding management fees  (0.17)%   (0.36)%  (0.17)%  -%
Management fees  (0.50)%   (0.50)%  (0.50)%  -%
Net loss  (43.26)%
Net income (loss)   38.82%  (43.26)%  -%
 
Total returns are calculated based on the change in value during the period. An individual limited partner’s total return and ratio may vary from the above total returns and ratios based on the timing of contributions to and withdrawals.withdrawals from USOF.
NOTE 7-  QUARTERLY FINANCIAL DATA (Unaudited)
The following summarized (unaudited) quarterly financial information presents the results of operations and other data for three-month periods ended March 31, June 30, September 30 and December 31, 2007 and 2006.
First
Quarter
Second
Quarter
Third
Quarter
Fourth
Quarter
2007200720072007
Total Income (Loss)$96,724,633 $(2,341,885)$94,227,844$102,143,154 
Total Expenses1,760,5422,089,1541,189,5311,298,623
Net Income (Loss)$94,964,091 $(4,431,039)$93,038,313$100,844,531 
Net Income (Loss) per Unit$1.69 $(0.38)$9.48$13.16 
First
Quarter
Second
Quarter
Third
Quarter
Fourth
Quarter
2006200620062006
Total Income (Loss)$- $(2,025,863)$(81,746,774)$(40,614,892)
Total Expenses-289,323581,9091,090,127
Net Income (Loss)$- $(2,315,186)$(82,328,683)$(41,705,019)
Net Income (Loss) per Unit$- $2.43$(12.76)$(5.19)
71

Changes in and Disagreements With Accountants on Accounting and Financial Disclosure.
 
Not applicable.
 
Controls and Procedures.
 
Disclosure Controls and Procedures.
 
The FundUSOF maintains disclosure controls and procedures that are designed to ensure that material information required to be disclosed in the Fund’sUSOF’s periodic reports filed or submitted under the Securities Exchange Act, of 1934, as amended (the “Exchange Act”), is recorded, processed, summarized and reported within the time period specified in the SEC’s rules and forms.
 
The duly appointed officers of Victoria Bay Asset Management, LLC, USOF'sthe General Partner, including its chief executive officer and the chief financial officer who perform functions equivalent to those of a principal executive officer and principal financial officer of USOF would perform if USOF had any officers, have evaluated the effectiveness of USOF’s disclosure controls and control procedures and have concluded that the disclosure controls and procedures of USOF have been effective as of the end of the period covered by this annual report.           
           
Management’s Annual Report on Internal Control Over Financial Reporting.
 
Since
USOF is not an accelerated filer or large accelerated filer, as such terms are defined in Rule 405responsible for establishing and maintaining adequate internal control over financial reporting. USOF’s internal control system is designed to provide reasonable assurance to its management and the board of the Securities Act of 1933, managementdirectors of the General Partner is not requiredregarding the preparation and fair presentation of published financial statements.  All internal control systems, no matter how well designed, have inherent limitations. Therefore, even those systems determined to be effective can provide only reasonable assurance with respect to financial statement preparation and has not, evaluatedpresentation.
USOF’s management assessed the effectiveness of USOF’s internal control over financial reporting as of December 31, 2006. Beginning with USOF’s annual report2007.  In making this assessment, it used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission in Internal Control Integrated Framework . Based on Form 10-K filed for the year endingassessment, USOF believes that, as of December 31, 2007, management of the General Partner will be required to make such an assessment.its internal control over financial reporting is effective.
 
Attestation Report of Registered Public Accounting Firm.
 
Not applicable.
Auditors’ Report on Internal Control over Financial Reporting 
Report of Independent Registered Public Accounting Firm

To the Partners of
United States Oil Fund, LP
 
We have audited the internal control over financial reporting of United States Oil Fund, LP (the “Fund”) as of December 31, 2007, based on criteria established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission. The Fund’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Report of Management on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Fund’s internal control over financial reporting based on our audit.
We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.
A company’s internal control over financial reporting is a process designed by, or under the supervision of, the company’s principal executive and principal financial officers, or persons performing similar functions, and effected by the company’s board of directors, management, and other personnel to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of the inherent limitations of internal control over financial reporting, including the possibility of collusion or improper management override of controls, material misstatements due to error or fraud may not be prevented or detected on a timely basis. Also, projections of any evaluation of the effectiveness of the internal control over financial reporting to future periods are subject to the risk that the controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. 

In our opinion, the Fund maintained, in all material respects, effective internal control over financial reporting as of December 31, 2007, based on the criteria established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission.
We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the financial statements as of and for the year ended December 31, 2007, of the Fund and our report dated March 1, 2008 expressed an unqualified opinion on those financial statements.
/s/ SPICER JEFFRIES LLP
Greenwood Village, Colorado
March 1, 2008
Change in Internal Control Over Financial Reporting.
 
There were no changes in USOF’s internal control over financial reporting during USOF’s last fiscal quarter that have materially affected, or are reasonably likely to materially affect, USOF’s internal control over financial reporting.
Other Information.
None.
72

Other Information.
Monthly Account Statements.
Pursuant to the requirement under part 4.22 of the CEA, each month USOF publishes an account statement for its unitholders, which includes a Statement of Income (Loss) and a Statement of Changes in NAV. The account statement is filed with the SEC on a current report on Form 8-K pursuant to Section 13 or 15(d) of the Exchange Act and posted each month on USOF's website at www.unitedstatesoilfund.com.
Part III

Directors, Executive Officers and Corporate Governance.
 
Messrs. Gerber and Mah also serve as executive officers of the General Partner. USOF has no executive officers. Its affairs are generally managed by the General Partner. The following individuals serve as Management Directors of the General Partner.
 
Nicholas Gerber has been the President and CEO of the General Partner since June 9, 2005 and a Management Director of the General Partner since May 10, 2005. He maintains his main business office at 1320 Harbor Bay Parkway, Suite 145, Alameda, California 94502. Mr. Gerber acts as a portfolio manager for USOF, USNG, US12OF and USG. Mr. Gerber will act as a portfolio manager for USOF.USHO and US12NG. He registered with the NFA as a Principal of the General Partner in November 2005, and as an Associated Person of the General Partner in December 2005. Currently, Mr. Gerber manages USNG.USOF, USNG, US12OF and USG. He will also manage USHO and US12NG. Mr. Gerber has also served as Vice President/Chief Investment Officer of Lyon’s Gate Reinsurance Company, Ltd. since June of 2003. Mr. Gerber has an extensive background in securities portfolio management and in developing investment funds that make use of indexing and futures contracts. He is also the founder of Ameristock Corporation, a California-based investment adviser registered under the Investment Advisers Act, of 1940, that has been sponsoring and providing portfolio management services to mutual funds since 1995. Since 1995, Mr. Gerber has been the portfolio manager of the Ameristock Mutual Fund, Inc. a mutual fund registered under the Investment Company1940 Act, of 1940, focused on large cap U.S. equities that currently has approximately $800$482 million in assets. He has also been a Trustee for the Ameristock ETF Trust since June 2006, and a portfolio manager for the Ameristock/Ryan 1 Year, 2 Year, 5 Year, 10 Year and 20 Year Treasury ETF since June 2007. In these roles, Mr. Gerber has gained extensive experience in evaluating and retaining third-party service providers, including custodians, accountants, transfer agents, and distributors. Prior to managing Ameristock Mutual Fund Inc., Mr. Gerber served as a portfolio manager with Bank of America Capital Management. While there he was responsible for the daily stewardship of four funds with a combined value in excess of $240 million. At Bank of America Capital Management, Mr. Gerber worked extensively in the development and managing of mutual funds and institutional accounts that were designed to track assorted equity market indices such as the Standard & Poor’s 500 and the Standard & Poor’s Midcap 400. Before joining Bank of America, he was managing director and founder of the Marc Stevens Futures Index Fund, a fund that combined the use of commodity futures with equity stock index futures. The futures index fund was a commodity pool and Mr. Gerber was the CPO. It was ultimately purchased by Newport Commodities. Mr. Gerber’s two decades of experience in institutional investment include a period of employment as a floor trader on the New York Futures Exchange. Mr. Gerber has passed the Series 3 examination for associated persons. He holds an MBA in finance from the University of San Francisco and a BA from Skidmore College. Mr. Gerber is 4445 years old.

Howard Mah has been a Management Director of the General Partner since May 10, 2005, Secretary of the General Partner since June 9, 2005, and Chief Financial Officer of the General Partner since May 23, 2006. In these roles, Mr. Mah is currently involved in the management of both USOF, USNG, US12OF and USNG.USG and will be involved in the management of USHO and US12NG. Mr. Mah also serves as the General Partner’s Chief Compliance Officer. He received a Bachelor of Education from the University of Alberta, in 1986 and an MBA from the University of San Francisco in 1988. He has been Secretary and Chief Compliance Officer of the Ameristock ETF Trust since February 2007, Compliance Officer of Ameristock Corporation since 2001;2001, a tax & finance consultant in private practice since 1995, Secretary of Ameristock Mutual Fund since 1995 and Ameristock Focused Value Fund from December 2000 to January 2005;2005, Chief Compliance Officer of Ameristock Mutual Fund since 2004 and the Co-Portfolio Manager of the Ameristock Focused Value Fund from December 2000 to January 2005. Mr. Mah is 4243 years old.

Andrew F. Ngim has been a Management Director of the General Partner since May 10, 2005 and Treasurer of the General Partner since June 9, 2005. As Treasurer of the General Partner, Mr. Ngim is currently involved in the management of both USOF, USNG, US12OF and USNG.USG and will be involved in the management of USHO and US12NG. He received a Bachelor of Arts from the University of California at Berkeley in 1983. Mr. Ngim has been the Managing Director and co-portfolio manager of Ameristock Corporation since 1999.1999, Trustee of the Ameristock ETF Trust since February 2007, and a portfolio manager for the Ameristock/Ryan 1 Year, 2 Year, 5 Year, 10 Year and 20 Year Treasury ETF since June 2007. He was the co-portfolio manager of the Ameristock Large Company Growth Fund from December 2000 to June 2002 and a Benefits Consultant with PriceWaterhouseCoopersPricewaterhouseCoopers from 1994 to 1999. Mr. Ngim is 4647 years old.

Robert L. Nguyen has been a Management Director of the General Partner since May 10, 2005. As a Management Director of the General Partner, Mr. Nguyen is currently involved on the management of both USOF, USNG, US12OF and USNG.USG and will be involved in the management of USHO and US12NG. He received a Bachelor of Science from California State University Sacramento in 1981. Mr. Nguyen has been the Managing Principal of Ameristock Corporation since 2000. He was Co-Portfolio Manager of the Ameristock Large Company Growth Fund from December 2000 to June 2002 and Institutional Specialist with Charles Schwab & Company Inc. from 1995 to 1999. Mr. Nguyen is 4748 years old.
73

The following individuals provide significant services to USOF but are employed by the entities noted below.

John P. Love acts as the Portfolio Operations Manager for USOF, USNG, US12OF and USG and is expected to be the Portfolio Operations Manager for USHO and US12NG. Mr. Love is also employed by Ameristock.the General Partner. Mr. Love has served as the operations manager of Ameristock Corporation since 2002, where he iswas responsible for back office and marketing activities for the Ameristock Mutual Fund.Fund and Ameristock Focused Value Fund and for the firm in general. From April 20011993 to September 2002, Mr. Love was thea project manager and managing director for IT and interactive media development firms, including TouchVision Interactive where he providedand Digital Boardwalk Inc. providing leadership to project teams from pre-contract through deployment, while assisting with business and process development. From January 1996 to November 2000, Mr. Love wasAs the managing director of Jamison/Gold (Keane Inc.) whereInteractive), he provided leadership to all departments including operations, production, technology, sales, marketing, administration, recruiting, and finance. From December 2000 to February 2001, Mr. Love was employed by Digital Boardwalk Inc. Mr. Love’s experience also includes leadingholds a groupSeries 3 license and is registered with the NFA as an Associated Person of multimedia producers who controlled web and kiosk projects from pre-contract to deployment.the General Partner. He holds a BFA in cinema-television from the University of Southern California. Mr. Love does not have any experience operating a commodity pool. Mr. Love is 3536 years old.

John T. Hyland, CFA acts as a Portfolio Manager and as the Director of Portfolio Research andChief Investment Officer for the General Partner. Mr. Hyland is employed by the General Partner. He registered with the NFA as an Associated Person of the General Partner in December 2005, and as a Principal of the General Partner in January 2006. In April 2006, Mr. Hyland became the Portfolio Manager for USOF, USNG, US12OF and DirectorUSG in April 2006, March 2007, June 2007 and April 2007, respectively, and as Chief Investment Officer of the General Partner, acts in such capacity on behalf of USOF, USNG, US12OF and USG. He is also expected to become the Portfolio ResearchManager for USOF.USHO and US12NG. As part of his responsibilities for USOF, USNG, US12OF and USG, Mr. Hyland handles day-to-day trading, helps set investment policies, and oversees USOF’s, USNG’s, US12OF's and USG's activities with its futures commission brokers, custodian-administrator, and marketing agent. Mr. Hyland has an extensive background in portfolio management and research with both equity and fixed income securities, as well as in the development of new types of complex investment funds. In July 2001, Mr. Hyland founded Towerhouse Capital Management, LLC, a firm that provides portfolio management and new fund development expertise to non-U.S. institutional investors. Mr. Hyland has been, and remains, a Principal and Portfolio Manager for Towerhouse. From July 2001 to January 2002, Mr. Hyland was the Director of Global Property Securities Research for Roulac International, where he worked on the development of a hedge fund focused on global real estate stocks. From 1996 through 2001, Mr. Hyland was the Director of Securities Research and Portfolio Manager for the capital markets division of CB Richard Ellis, a global commercial real estate services firm. His division provided portfolio management of equities as an advisor or sub-advisor for mutual funds and separate accounts focused on real estate investment trusts. In addition, his group conducted research in the area of structured commercial real estate debt (including Commercial Mortgage-Back Securities, or “CMBS”), and lead the creation of one of the earliest re-securitizations of multiple CMBS pool tranches into a Collateralized Debt Obligation (“CDO”) vehicle. In the ten years prior to working at CB Richard Ellis, Mr. Hyland had worked as a portfolio manager or financial representative for several other investment firms and mutual funds. Mr. Hyland received his Chartered Financial Analyst (“CFA”) designation in 1994. From 1993 until 2003, Mr. Hyland was on the Board of Directors of the Security Analysts of San Francisco (“SASF”), a not-for-profit organization of investment management professionals. He served as the president of the SASF from 2001-2002. Mr. Hyland is a member of the CFA Institute (formerly AIMR). He is also a member of the National Association of Petroleum Investment Analysts, (NAPIA), a not-for-profit organization of investment professionals focused on the oil industry. He serves as an arbitrator for the National Association of Securities Dealers (“NASD”),FINRA, as part of their dispute resolution program. He is a graduate of the University of California, Berkeley and received a BA in political science/international relations in 1982. Mr. Hyland is 4748 years old.
74

The following individuals serve as independent directors of the General Partner:Partner.

Peter M. Robinson has been an Independent Director of the General Partner since September 30, 2005.2005 and, as such, serves on the board of directors of the General Partner, which acts on behalf of USOF, USNG, US12OF and USG and will serve on behalf of US12NG and USHO, if such funds commence operations. Mr. Robinson has been employed as a Research Fellow with the Hoover Institution since 1993. Mr. Robinson graduated from Dartmouth College in 1979 and Oxford University in 1982. Mr. Robinson spent six years in the White House, serving from 1982 to 1983 as chief speechwriter to Vice President George Bush and from 1983 to 1988 as special assistant and speechwriter to President Ronald Reagan. After the White House, Mr. Robinson received an MBA from the Stanford University Graduate School of Business. Mr. Robinson then spent a year in New York City with Fox Television. He spent a second year in Washington, D.C., with the Securities and Exchange Commission,SEC, where he served as the director of the Office of Public Affairs, Policy Evaluation, and Research. Mr. Robinson has also written three books and has been published in the New York Times, Red Herring, and Forbes ASAP and he is the editor of Can Congress Be Fixed?: Five Essays on Congressional Reform (Hoover Institution Press, 1995). Mr. Robinson is 4850 years old.


Malcolm R. Fobes III has been an Independent Director of the General Partner since September 30, 2005.2005 and, as such, serves on the board of directors of the General Partner, which acts on behalf of USOF, USNG, US12OF and USG and will serve on behalf of US12NG and USHO, if such funds commence operations. Mr. Fobes is the founder, Chairman and Chief Executive Officer of Berkshire Capital Holdings, Inc., a California-based investment adviser registered under the Investment Advisers Act, of 1940, that has been sponsoring and providing portfolio management services to mutual funds since 1997. Since 1997, Mr. Fobes has been the Chairman and President of The Berkshire Funds, a mutual fund investment company registered under the Investment Company Act of 1940.1940 Act. Mr. Fobes also serves as portfolio manager of the Berkshire Focus Fund, a mutual fund registered under the Investment Company1940 Act, of 1940, which concentrates its investments in the electronic technology industry. From April 2000 to July 2006, Mr. Fobes also served as co-portfolio manager of The Wireless Fund, a mutual fund registered under the Investment Company1940 Act, of 1940, which concentrates its investments in companies engaged in the development, production, or distribution of wireless-related products or services. In these roles, Mr. Fobes has gained extensive experience in evaluating and retaining third-party service providers, including custodians, accountants, transfer agents, and distributors. Mr. Fobes was also contributing editor of Start a Successful Mutual Fund: The Step-by-Step Reference Guide to Make It Happen (JV Books, 1995). Prior to forming Berkshire Capital Holdings, Inc., Mr. Fobes was employed by various technology-related companies, including Adobe Systems, Inc., a leading provider of digital publishing and imaging software technologies. Mr. Fobes holds a B.S. degree in Finance and Economics from San Jose State University in California. Mr. Fobes is 4243 years old.

The following are individual Principals,principals, as that term is defined in CFTC Rule 3.1, for USOF:the General Partner: Melinda Gerber, the Gerber Family Trust, Howard Mah, Andrew Ngim, Robert Nguyen, Peter Robinson, Gordon Ellis, Malcolm Fobes, John Love, and John Hyland. These individuals are principals due to their positions, however, Nicholas Gerber and Melinda Gerber are also principals due to their controlling stake in Wainwright. Neither the General Partner, norNone of the principals ownowns or havehas any other beneficial interest in USOF. Nicholas Gerber and John Hyland make trading and investment decisions for USOF. Nicholas Gerber, John Love, and John Hyland execute trades on behalf of USOF. In addition, Nicholas Gerber, John Love, John Hyland, and Kathryn Rooney and Robert Nguyen are registered with the CFTC as Associated Persons of the General Partner and are associate members of the NFA.
 
Audit Committee

The General Partner has an audit committee which is made up of the three independent directors (Peter M. Robinson, Gordon L. Ellis, and Malcolm R. Fobes III). The audit committee is governed by an audit committee charter that is posted on USOF’s website. Mr. Fobes and Mr. Ellis meet the financial sophistication requirementsThe Board has not made a determination as to whether any of the American Stock Exchange andmembers of the audit committee charter and the Board has determined that each ismay be considered to be an “Audit Committee Financial Expert” as such term is defined byin Item 407(d)(5) of Regulation S-K. However, the federal securities laws.Board believes that Messrs. Fobes and Ellis are able to read and understand financial statements and meet the financial sophistication requirements of the AMEX and applicable FINRA rules as they relate to audit committees. As such, given the limited scope of USOF’s activities and the qualifications and experience of all of the members of the audit committee, the board of directors does not believe it is necessary to designate a member of the audit committee as an “Audit Committee Financial Expert.”

Other Committees

Since the individuals who perform work on behalf of USOF are not compensated by USOF, but instead by the General Partner, Ameristock or ALPS Distributors, Inc., USOF does not have a Compensation Committee.compensation committee. Similarly, since the Directors noted above serve on the Boardboard of Directorsdirectors of the General Partner, USOF does not have a Nominating Committee.there is no nominating committee of the board of directors that acts on behalf of USOF.
 
Executive Compensation.

 
 
 
 
 
 
 
 
 
Change in
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Change in
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Pension
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Pension
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Value and
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Value and
 
 
 
 
 
 
Fees
 
 
 
 
 
 
 
Nonqualified
     
 
Fees
 
 
 
 
 
 
 
Nonqualified     
 
Earned or
 
 
 
 
 
Non-Equity
 
Deferred
 
 
 
 
 
 Earned or
 
 
 
 
 
Non-Equity
 
Deferred
 
 
 
 
 
 
Paid in
 
Stock
 
Option
 
Incentive Plan
 
Compensation
 
All Other
 
 
 
 
Paid in
 
Stock
 
Option
 
Incentive Plan
 
Compensation
 
All Other
 
 
 
Name
 
Cash
 
Awards
 
Awards
 
Compensation
 
Plan
 
Compensation (1)
 
Total
 
 
Cash
 
Awards
 
Awards
 
Compensation
 
Plan
 
Compensation (1)
 
Total 
Management Directors
                              
Nicholas Gerber $0 NA NA NA $0 $0 $0  $0 NA NA NA $0 $0 $0 
Andrew F. Ngim $0 NA NA NA $0 $0 $0  $0 NA NA NA $0 $0 $0 
Howard Mah $0 NA NA NA $0 $0 $0  $0 NA NA NA $0 $0 $0 
Robert L. Nguyen $0 NA NA NA $0 $0 $0  $0 NA NA NA $0 $0 $0 
Independent Directors
                                
Peter M. Robinson $0 NA NA NA $0 $17,500 $17,500  $0 NA NA NA $0 $89,000 $89,000 
Gordon L. Ellis $0 NA NA NA $0 $17,500 $17,500  $0 NA NA NA $0 $88,000 $88,000 
Malcolm R. Fobes III $0 NA NA NA $0 $17,500 $17,500  $0 NA NA NA $0 $109,000 $109,000 
Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.

Certain Relationships and Related Transactions, and Director Independence.
Principal AccountingAccountant Fees and Services.
 
  
2006
  
2005
  2007  2006
Audit fees $109,000 $ - $100,000 $ 159,000
Audit-related fees  50,000   -  -   -
Tax fees  -  -  6,300  -
All other fees  -   -  -   -
 $159,000 $ - $106,300 $159,000
 
 
Exhibits and Financial Statement Schedules.
 
1.See Index to Financial Statements on page 61.60.
2.No financial statement schedules are filed herewith because (i) such schedules are not required or (ii) the information required has been presented in the aforementioned financial statements.
3.Exhibits required to be filed by Item 601 of Regulation S-K.
  
 
Listed below are the exhibits which are filed or furnished as part of this report on Form 10-K (according to the number assigned to them in Item 601 of Regulation S-K):
 
Exhibit Number
 
Description of Document
   
3.1*****
 
Form of the ThirdFourth Amended and Restated Agreement of Limited Partnership.
   
3.2**
 
Certificate of Limited Partnership of the Registrant.
   
10.1***
 
Form of Initial Authorized Purchaser Agreement.
   
10.2****
 
Form of Marketing Agent Agreement.
   
10.3***
 
Form of Custodian Agreement.
   
10.4***
 
Form of Administrative Agency Agreement.
   
10.5***** 
License Agreement.
14.1******Code of Ethics.
23.1******Consent of Spicer Jeffries LLP.Independent Registered Public Accounting Firm.
 
*         Filed Herewith
*Incorporated by reference to Registrant’s Current Report on Form 8-K filed on November 15, 2007.
**       Incorporated by reference to Registrant's Registration Statement on Form S-1 (File No. 333- 124950)
** Incorporated by reference to Registrant’s Registration Statement on Form S-1 (File No. 333-124950) filed on May 16, 2005.
***     Incorporated by reference to Registrant's Pre-Effective Amendment No. 5 to the Registration Statement on Form S-1 (File No. 333- 124950)
*** Incorporated by reference to Registrant’s Pre-Effective Amendment No. 5 to the Registration Statement on Form S-1 (File No. 333-124950) filed on March 13, 2006.
****   Incorporated by reference to Registrant's
**** Incorporated by reference to Registrant’s Pre-Effective Amendment No. 7 to the Registration Statement on Form S-1 (File No. 333-124950) filed on April 7, to the Registration Statement on Form S-1 (File No. 333- 124950) filed on April 6, 2006.
***** Incorporated by reference to Registrant's Registration Statement on Form S-1 (File No. 333- 140117) filed on January 19,
*****Incorporated by reference to United States Natural Gas Fund, LP’s Quarterly Report on Form 10-Q for the Quarter ended March 31, 2007, filed on June 1, 2007.
******Filed herewith.
*******Furnished herewith.
 
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrantregistrant has duly caused this Report to be signed on its behalf by the undersigned, thereunto duly authorized on March 26, 2007.authorized.
 
United States Oil Fund, LP (Registrant) 
By: Victoria Bay Asset Management, LLC, its general partner
 
 
 
/S/s/ Nicholas D. Gerber
Nicholas D. Gerber
Chief Executive Officer of Victoria Bay Asset Management, LLC
(Principal executive officer)officer)
 
DateDate: March 26, 200717, 2008
 
/S/ s/ Howard Mah 
Howard Mah
Howard Mah
Chief Financial Officer of Victoria Bay Asset Management, LLC
(Principal financial and accounting officer)officer)
 
DateDate: March 26, 200717, 2008

79

 
 Pursuant to the requirements of the Securities Exchange Act of 1934, this Report has been signed below by the following persons on behalf of the Registrant in the capacities and on the dates indicated.
 
Signature
Title (Capacity)
Date
   
/S/s/ Nicholas D. GerberManagement DirectorMarch 17, 2008
Nicholas D. Gerber
/s/ Howard MahManagement DirectorMarch 17, 2008
Howard Mah
/s/ Andrew NgimManagement DirectorMarch 17, 2008
Andrew Ngim
 /s/ Robert NguyenManagement Director March 17, 2008
Robert Nguyen
/s/ Peter M. RobinsonIndependent Director
March 29, 2007
17, 2008
Peter M. Robinson  
   
/S/s/ Gordon L. Ellis
Independent Director
March 29, 200717, 2008
Gordon L. Ellis  
   
/S/s/ Malcolm R. Fobes IIIIndependent Director
March 29, 200717, 2008
Malcolm R. Fobes III  

80