EX-21 3 wmb_20151231xex21.htm EX-21 Exhibit

Exhibit 21


ENTITY
 
JURISDICTION
 
 
 
Access Midstream Ventures, L.L.C.
 
Delaware
ACMP Finance Corp.
 
Delaware
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
Blue Racer Midstream, LLC
 
Delaware
Bluestem Gas Services, L.L.C.
 
Oklahoma
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
Gulf Liquids New River Project LLC
 
Delaware
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
HI-BOL Pipeline LLC
 
Delaware
Inland Ports, Inc.
 
Tennessee
Jackalope Gas Gathering Services, L.L.C.
 
Oklahoma
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
Northwest Pipeline LLC
 
Delaware



ENTITY
 
JURISDICTION
 
 
 
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
Parkco Two, L.L.C.
 
Oklahoma
Pecan Hill Water Solutions
 
Delaware
Pennant Midstream LLC
 
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
Reserveco Inc.
 
Delaware
SCMS 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 Energy Company, LLC
 
Delaware
Transco Exploration Company
 
Delaware
Transcontinental Gas Pipe Line Company, LLC
 
Delaware
TWC Holdings C.V.
 
Netherlands
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 Acquisition Holding Company LLC
 
New Jersey
Williams Alaska Petroleum, Inc.
 
Alaska
Williams Bayou Ethane Pipeline, LLC
 
Delaware
Williams Blu Operating LLC
 
Delaware
Williams Bluegrass Pipeline LLC
 
Delaware
Williams Canada Employee Services Inc.
 
Alberta
Williams Canada Propylene ULC
 
Alberta
Williams Compression, L.L.C.
 
Oklahoma
Williams CV Holdings LLC
 
Delaware
Williams Energy Canada Development ULC
 
Alberta
Williams Energy Canada GP ULC
 
Alberta
Williams Energy Canada LP
 
Alberta
Williams Energy Canada ULC
 
Alberta



ENTITY
 
JURISDICTION
 
 
 
Williams Energy de Mexico, S. de. R.L. de C.V.
 
Mexico
Williams Energy Resources LLC
 
Delaware
Williams Energy Solutions LLC
 
Delaware
Williams Equities, Inc.
 
Delaware
Williams Exploration Company
 
Delaware
Williams Express LLC
 
Delaware
Williams Express, Inc. (AK)
 
Alaska
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 Pipeline Company, LLC
 
Delaware
Williams Gas Processing - Gulf Coast Company, L.P.
 
Delaware
Williams Global Energy (Cayman) Limited
 
Cayman Islands
Williams Global Holdings LLC
 
Delaware
Williams Gulf Coast Gathering Company, LLC
 
Delaware
Williams Headquarters Building LLC
 
Delaware
Williams Horizon Offgas ULC
 
Alberta
Williams Hutch Rail Company, LLC
 
Delaware
Williams Information Technology, Inc.
 
Delaware
Williams International Company LLC
 
Delaware
Williams International El Furrial Limited
 
Cayman Islands
Williams International Pigap Limited
 
Cayman Islands
Williams International Services Company
 
Nevada
Williams International Venezuela Limited
 
Cayman Islands
Williams Laurel Mountain, LLC
 
Delaware
Williams Memphis Terminal, Inc.
 
Delaware
Williams Mexico Holdings B.V.
 
Netherlands
Williams Mexico Sub-Holdings B.V.
 
Netherlands
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 New Soda, Inc.
 
Delaware
Williams Ohio Valley Midstream LLC
 
Texas
Williams Ohio Valley Pipeline LLC
 
Delaware
Williams Oil Gathering, L.L.C.
 
Delaware
Williams Olefins Development, LLC
 
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 L.P.
 
Delaware



ENTITY
 
JURISDICTION
 
 
 
Williams Partners Operating LLC
 
Delaware
Williams PERK, LLC
 
Delaware
Williams Permian Midstream, L.L.C.
 
Oklahoma
Williams Petroleum Pipeline Systems, Inc.
 
Delaware
Williams Petroleum Services, LLC
 
Delaware
Williams Pipeline Services LLC
 
Delaware
Williams Purity Pipelines, LLC
 
Delaware
Williams Refining & Marketing, L.L.C.
 
Delaware
Williams Resource Center, L.L.C.
 
Delaware
Williams Soda Holdings, LLC
 
Delaware
Williams Sodium Products Company
 
Delaware
Williams Strategic Sourcing Company
 
Delaware
Williams TravelCenters, Inc.
 
Delaware
Williams West Texas Processing, L.L.C.
 
Oklahoma
Williams WPC - I, LLC
 
Delaware
WilPro Energy Services (El Furrial) Limited
 
Cayman Islands
WilPro Energy Services (Pigap II) Limited
 
Cayman Islands
WPZ GP LLC
 
Delaware