Exhibit 21
ENTITY | JURISDICTION |
ACMP Finance Corp. | Delaware |
Access Compression, L.L.C. | Oklahoma |
Access MLP Operating, L.L.C. | Delaware |
Access Midstream Gas Services, L.L.C. | Oklahoma |
Access Midstream Ventures, L.L.C. | Delaware |
Access Permian Midstream, L.L.C. | Oklahoma |
Access West Texas Processing, L.L.C. | Oklahoma |
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 |
Bluestem Gas Services, L.L.C. | Oklahoma |
Caiman Energy II, LLC | 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 Natural Gas System, L.L.C. | Delaware |
HI-BOL Pipeline LLC | Delaware |
Jackalope Gas Gathering Services, L.L.C. | Oklahoma |
Laurel Mountain Midstream Operating LLC | Delaware |
Laurel Mountain Midstream, LLC | Delaware |
LNE PIPELINE CORPORATION | New York |
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 |
Northwest Pipeline LLC | Delaware |
Oklahoma Midstream Gas Services, L.L.C. | Oklahoma |
Overland Pass Pipeline Company, LLC | Delaware |
Pacific Connector Gas Pipeline, LLC | Delaware |
Pacific Connector Gas Pipeline, LP | Delaware |
Parachute Pipeline LLC | Delaware |
Pecan Hill Water Solutions | Delaware |
Pine Needle LNG Company, LLC | North Carolina |
Pine Needle Operating Company, LLC | Delaware |
Ponder Midstream Gas Services, L.L.C. | Delaware |
Ranch Westex JV LLC | Delaware |
Texas Midstream Gas Services, L.L.C. | Oklahoma |
Three Rivers Midstream LLC | Delaware |
TransCardinal Company, LLC | Delaware |
TransCarolina LNG Company, LLC | Delaware |
Transcontinental Gas Pipe Line Company, 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 - Pipeline LLC | Delaware |
WFS Enterprises LLC | Delaware |
WFS Gathering Company, L.L.C. | Delaware |
Williams Bayou Ethane Pipeline, LLC | Delaware |
Williams Blu Operating LLC | Delaware |
Williams Energy Canada ULC | Alberta |
Williams Energy Resources LLC | Delaware |
Williams Energy Solutions LLC | Delaware |
Williams Field Services - Gulf Coast Company, L.P. | Delaware |
Williams Field Services Company, LLC | Delaware |
Williams Field Services Group, LLC | Delaware |
Williams Flexible Generation, LLC | Delaware |
Williams Four Corners LLC | Delaware |
Williams Gas Processing - Gulf Coast Company, L.P. | Delaware |
Williams Gulf Coast Gathering Company, LLC | Delaware |
Williams Laurel Mountain, LLC | Delaware |
Williams Mobile Bay Producer Services, L.L.C. | 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, L.L.C. | Delaware |
Williams Pacific Connector Gas Operator, LLC | Delaware |
Williams Partners Cooperatief U.A. | Netherlands |
Williams Partners Finance Corporation | Delaware |
Williams Partners Operating LLC | Delaware |
Williams PERK, LLC | Delaware |
Williams Pipeline Services LLC | Delaware |