Exhibit 21 | ||
ENTITY | JURISDICTION | |
Alliance Canada Marketing L.P. | Alberta | |
Alliance Canada Marketing LTD | Alberta | |
Appalachia Midstream Services, L.L.C. | Oklahoma | |
Aux Sable Liquid Products Inc. | Delaware | |
Aux Sable Liquid Products LP | Delaware | |
Aux Sable Midstream LLC | Delaware | |
Bargath LLC | Delaware | |
Baton Rouge Fractionators LLC | Delaware | |
Baton Rouge Pipeline LLC | Delaware | |
Black Marlin Pipeline LLC | Texas | |
Bluebonnet Market Express LLC | Delaware | |
Blue Racer Midstream, LLC | Delaware | |
Bluestem Gas Services, L.L.C. | Oklahoma | |
Bluestem Pipeline LLC | Delaware | |
Brazos Permian II, LLC | Delaware | |
Caiman Energy II, LLC | Delaware | |
Caiman Ohio Midstream, LLC | Texas | |
Carbon County UCG, Inc. | Delaware | |
Carbonate Trend Pipeline LLC | Delaware | |
Cardinal Gas Services, L.L.C. | Delaware | |
Cardinal Operating Company, LLC | Delaware | |
Cardinal Pipeline Company, LLC | North Carolina | |
Constitution Pipeline Company LLC | Delaware | |
Discovery Gas Transmission LLC | Delaware | |
Discovery Producer Services LLC | Delaware | |
DMP New York, Inc. | New York | |
Gulfstar One LLC | Delaware | |
Gulfstream Management & Operating Services, L.L.C. | Delaware | |
Gulfstream Natural Gas System, L.L.C. | Delaware | |
HB Construction Company Ltd. | Alberta | |
Inland Ports, Inc. | Tennessee | |
Kiowa Lateral LLC | Delaware | |
Laurel Mountain Midstream Operating LLC | Delaware | |
Laurel Mountain Midstream, LLC | Delaware | |
Louisiana Midstream Gas Services, L.L.C. | Oklahoma | |
Magnolia Midstream Gas Services, L.L.C. | Oklahoma | |
Marsh Resources, LLC | Delaware | |
Mid-Continent Fractionation and Storage, LLC | Delaware | |
Mockingbird Midstream Gas Services, L.L.C. | Oklahoma | |
Monarch Pipeline LLC | Delaware | |
Nopal Gathering LLC | Delaware | |
Northwest Pipeline LLC | Delaware |
Exhibit 21 | ||
ENTITY | JURISDICTION | |
Ohio Valley Midstream LLC | Delaware | |
Oklahoma Midstream Gas Services, L.L.C. | Oklahoma | |
Overland Pass Pipeline Company LLC | Delaware | |
Pacific Connector Gas Pipeline, LP | Delaware | |
Parachute Pipeline LLC | Delaware | |
Pecan Hill Water Solutions | Delaware | |
Pennant Midstream LLC | Delaware | |
Permian Connector, LLC | Delaware | |
Pine Needle LNG Company, LLC | North Carolina | |
Pine Needle Operating Company, LLC | Delaware | |
Ponder Midstream Gas Services, L.L.C. | Delaware | |
Reserveco Inc. | Delaware | |
Rocky Mountain Midstream Holdings LLC | Delaware | |
Rocky Mountain Midstream JV Holdings LLC | Delaware | |
Rocky Mountain Midstream LLC | Texas | |
Rocky Mountain Midstream Marketing LLC | Texas | |
Rocky Mountain Midstream Pipeline LLC | Texas | |
Rocky Mountain Midstream Water LLC | Texas | |
Targa Train 7 LLC | Delaware | |
Texas Midstream Gas Services, L.L.C. | Oklahoma | |
The Williams Companies Foundation, Inc. | Oklahoma | |
The Williams Companies, International Holdings B.V. | Dutch BV | |
Three Rivers Midstream LLC | Delaware | |
TransCardinal Company, LLC | Delaware | |
TransCarolina LNG Company, LLC | Delaware | |
Transco Exploration Company | Delaware | |
Transcontinental Gas Pipe Line Company, LLC | Delaware | |
TWC Holdings C.V. | Netherlands | |
UEOM NGL Pipelines LLC | Delaware | |
Utica East Ohio Midstream, L.L.C. | Delaware | |
Utica Gas Services, L.L.C. | Oklahoma | |
Wamsutter LLC | Delaware | |
WFS - Liquids LLC | Delaware | |
WFS Gathering Company, L.L.C. | Delaware | |
Williams ACM Holdings ULC | British Columbia | |
Williams Acquisition Holding Company LLC | New Jersey | |
Williams Alaska Petroleum, Inc. | Alaska | |
Williams Bayou Ethane Pipeline, LLC | Delaware | |
Williams Blu Operating LLC | Delaware | |
Williams Compression, L.L.C. | Oklahoma | |
Williams CV Holdings LLC | Delaware | |
Williams Energy Resources LLC | Delaware | |
Williams Energy Solutions LLC | Delaware |
Exhibit 21 | ||
ENTITY | JURISDICTION | |
Williams Express LLC | Delaware | |
Williams Express, Inc. | Alaska | |
Williams Field Services - Gulf Coast Company LLC | Delaware | |
Williams Field Services Company, LLC | Delaware | |
Williams Field Services Group, LLC | Delaware | |
Williams Flexible Generation, LLC | Delaware | |
Williams Gas Processing - Gulf Coast Company LLC | Delaware | |
Williams Global Energy (Cayman) Limited | Cayman Islands | |
Williams Global Holdings LLC | Delaware | |
Williams Gulf Coast Transportation Company LLC | Delaware | |
Williams Headquarters Building LLC | Delaware | |
Williams Holdings and Manufacturing LLC | Delaware | |
Williams Hutch Rail Company, LLC | Delaware | |
Williams Information Technology LLC | Delaware | |
Williams International Company LLC | Delaware | |
Williams International El Furrial Limited | Cayman Islands | |
Williams International Pigap Limited | Cayman Islands | |
Williams International Venezuela Limited | Cayman Islands | |
Williams Laurel Mountain, LLC | Delaware | |
Williams Midstream Gas Services, L.L.C. | Oklahoma | |
Williams MLP Operating, L.L.C. | Delaware | |
Williams Mobile Bay Producer Services, L.L.C. | Delaware | |
Williams Ohio River Valley LLC | Delaware | |
Williams Ohio River Valley Corporation | Delaware | |
Williams Ohio Valley Midstream LLC | Texas | |
Williams Ohio Valley Pipeline LLC | Delaware | |
Williams Oil Gathering, L.L.C. | Delaware | |
Williams Olefins Feedstock Pipelines, L.L.C. | Delaware | |
Williams Olefins Pipeline Holdco LLC | Delaware | |
Williams Pacific Connector Gas Operator, LLC | Delaware | |
Williams Partners Operating LLC | Delaware | |
Williams PERK, LLC | Delaware | |
Williams Petroleum Services, LLC | Delaware | |
Williams Pipeline Services LLC | Delaware | |
Williams Propylene Company LLC | Delaware | |
Williams Resource Center, L.L.C. | Delaware | |
Williams Rocky Mountain Midstream Holdings LLC | Delaware | |
Williams Rocky Mountain Midstream Operating LLC | Delaware | |
Williams Strategic Sourcing Company | Delaware | |
Williams WPC - I, LLC | Delaware | |
WilPro Energy Services (El Furrial) Limited | Cayman Islands | |
WilPro Energy Services (Pigap II) Limited | Cayman Islands |