EX-21 10 d12870exv21.txt SUBSIDIARIES OF THE REGISTRANT . . . EXHIBIT 21
ENTITY JURISDICTION 898389 Alberta Ltd. Alberta ACCROSERV SRL Barbados ACCROVEN SRL Barbados Alliance Canada Marketing L.P. Alberta Alliance Canada Marketing LTD Alberta Apco Argentina, Inc. Cayman Islands Apco Properties Ltd. Cayman Islands Arctic Fox Assets, L.L.C. Delaware Aspen Products Pipeline LLC Delaware Aux Sable Canada Ltd. Alberta Aux Sable Canada LP Alberta Aux Sable Liquid Products Inc. Delaware Aux Sable Liquid Products LP Alberta Bargath Inc. Colorado Barrett Fuels Corporation Delaware Barrett Resources International Corporation Delaware Barrett Resources Peru Corporation Delaware Baton Rouge Fractionators LLC Delaware Baton Rouge Pipeline LLC Delaware Beaver Dam Wash Energy, LLC Delaware Beech Grove Processing Company Tennessee Bison Royalty LLC Delaware Black Marlin Pipeline Company Texas Buccaneer Gas Pipeline Company, L.L.C. Delaware Cannon Pipeline L.L.C. Oklahoma Carbon County UCG, Inc. Delaware Cardinal Operating Company Delaware Cardinal Pipeline Company, LLC North Carolina Castle Associates, L.P. Delaware Chacahoula Natural Gas Storage, LLC Delaware Choctaw Natural Gas Storage, LLC Delaware ChoiceSeat, L.L.C. Delaware Cross Bay Operating Company Delaware Cross Bay Pipeline Company, L.L.C. Delaware Cumberland Gas Pipeline Company Delaware Cumberland Operating Company Delaware Discovery Gas Transmission LLC Delaware Discovery Producer Services LLC Delaware Distributed Power Solutions L.L.C. Delaware Dogwood Ventures Company, LLC Delaware Eagle Gas Services, Inc. Ohio
E-Birchtree, LLC Delaware EM&T NPC Co., LLC Delaware Energy International Corporation Pennsylvania Energy News Live, LLC Delaware Energy Tech, Inc. Delaware E-Oaktree, LLC Delaware Erie & Hudson Development Company Ohio ESPAGAS USA, Inc. Delaware ESPAGAS, S.A. de C.V. Mexico F T & T, Inc. Delaware Fishhawk Ranch, Inc. Florida FleetOne Inc. Delaware FPT Marketing Company Limited Bermuda Free Port Terminal Company Limited Bermuda Fulton Energy Center, LLC Delaware Garrison, L.L.C. Delaware Gas Supply, L.L.C. Delaware Georgia Strait Crossing Pipeline LP Utah Goebel Gathering Company, L.L.C. Delaware Great Basin Energy Resources, LLC Delaware GSX Canada Limited Partnership British Columbia GSX Operating Company, LLC Delaware GSX Pipeline, LLC Delaware GSX Western Pipeline Company Delaware Gulf Liquids Holdings LLC Delaware Gulf Liquids New River Project LLC Delaware Gulf Star Deepwater Services, LLC Delaware Gulf Stream Natural Gas System, L.L.C. Delaware Gulfstream Management & Operating Services, L.L.C. Delaware Halgas, Inc. Oklahoma Hazleton Fuel Management Company Delaware Hazleton Pipeline Company Delaware HI-BOL Pipeline Company Delaware Independence Operating Company Delaware Independence Pipeline Company Delaware Inland Ports, Inc. Tennessee Juarez Pipeline Company Delaware Kern River Acquisition, LLC Delaware Kiowa Gas Storage, L.L.C. Delaware Langside Limited Bermuda Laughton, L.L.C. Delaware Liberty Operating Company Delaware Littlefield Energy, LLC Delaware Longhorn Enterprises of Texas, Inc. Delaware Longhorn Partners GP, L.L.C. Delaware Longhorn Partners Pipeline, L.P. Delaware
Magnolia Methane Corp. Delaware MAPCO Alaska Inc. Alaska MAPCO Canada Energy Inc. Canada MAPCO Energy Services, L.L.C. Delaware MAPCO Impressions Inc. Oklahoma MAPCO Inc. DE Delaware MAPCO Indonesia Inc. Delaware MAPL Investments, Inc. Delaware Marsh Resources, Inc. Delaware Memphis Generation, L.L.C. Delaware Mid-Continent Fractionation and Storage, LLC Delaware Millennium Energy Fund, L.L.C. Delaware Moriche Bank Ltd. Barbados Nebraska Energy, L.L.C. Kansas NESP Supply Corp. Delaware North Padre Island Spindown, Inc. Delaware Northwest Alaskan Pipeline Company Delaware Northwest Argentina Corporation Utah Northwest Land Company Delaware Northwest Pipeline Corporation Delaware NWP Enterprises, Inc. Delaware NWP Enterprises, LLC Delaware Pacesetter/MVHC, Inc. Texas Pan-Alberta Resources Inc. Canada Parkco, L.L.C. Oklahoma Parkco Two, L.L.C. Oklahoma Petrolera Perez Companc Argentina Piceance Production Holdings LLC Delaware Pine Needle LNG Company, LLC North Carolina Pine Needle Operating Company Delaware Piper Power Company, LLC Delaware Plains Petroleum Gathering Company Delaware Rainbow Resources, Inc. Colorado Realco of Crown Center, Inc. Delaware Realco of San Antonio, Inc. Delaware Realco Realty Corp. Delaware Reserveco Inc. Delaware Rio Vista Energy Marketing Company, L.L.C. Delaware Rulison Gas Company, LLC Colorado Rulison Production Company LLC Delaware Servicios Williams International de Mexico S.A. de C.V. Mexico Silver State Resources Management, LLC Delaware Snow Goose Associates, L.L.C. Delaware Sociedad Williams Enbridge y Compania Venezuela Solutions EMT, Inc. Texas SPV, L.L.C. Oklahoma
Tennessee Processing Company Delaware Terrebonne Pipeline Company Delaware TGPL Enterprises, Inc. Delaware TGPL Enterprises, LLC Delaware TGT Enterprises, Inc. Delaware TGT Enterprises, LLC Delaware The Tennessee Coal Company Delaware Thermogas Energy, LLC Delaware TM Cogeneration Company Delaware Touchstar Energy Technologies, Inc. Texas Touchstar Technologies Pty Ltd. South Africa TouchStar Technologies, L.L.C. Delaware TransCardinal Company Delaware TransCarolina LNG Company Delaware Transco Coal Gas Company Delaware Transco Cross Bay Company Delaware Transco Energy Company Delaware Transco Energy Investment Company Delaware Transco Energy Marketing Company Delaware Transco Exploration Company Delaware Transco Gas Company Delaware Transco Independence Pipeline Company Delaware Transco Liberty Pipeline Company Delaware Transco P-S Company Delaware Transco Resources, Inc. Delaware Transco Terminal Company Delaware Transco Tower Realty, Inc. Delaware Transcontinental Gas Pipe Line Corporation Delaware TransCumberland Pipeline Company Delaware Transeastern Gas Pipeline Company, Inc. Delaware TransNetwork Holding Company Delaware Tulsa Williams Company Delaware TXG Gas Marketing Company Delaware Valley View Coal, Inc. Tennessee Volunteer - Williams, L.L.C. Delaware WCG NOTE CORP., INC. Delaware WEM&T Trading GmbH Austria WFS - Liquids Company Delaware WFS - NGL Pipeline Company, Inc. Delaware WFS - OCS Gathering Co. Delaware WFS - Offshore Gathering Company Delaware WFS - Pipeline Company Delaware WFS Enterprises, Inc. Delaware WFS Gathering Company, L.L.C. Delaware WGP Enterprises, Inc. Delaware WGP Gulfstream Pipeline Company, L.L.C. Delaware
WGP International Canada, Inc. New Brunswick WHBC Holdings, LLC Delaware WHBC, LLC Delaware WHD Enterprises, Inc. Delaware WHD Enterprises, LLC Delaware Williams Acquisition Holding Company, Inc. (Del) Delaware Williams Acquisition Holding Company, Inc. (NJ) New Jersey Williams Aircraft, Inc. Delaware Williams Alaska Air Cargo Properties, L.L.C. Alaska Williams Alaska Petroleum, Inc. Alaska Williams Alaska Pipeline Company, L.L.C. Delaware Williams Alliance Canada Marketing, Inc. New Brunswick Williams Arkoma Gathering Company, LLC Delaware Williams Cove Point, Inc. Delaware Williams Customer Information Solution, Inc. Delaware Williams Distributed Power Services, Inc. Delaware Williams EnergIa Espana, S.L. Spain Williams Energia Italia SRL Italy Williams Energy Canada Pipeline, Inc. New Brunswick Williams Energy Canada, Inc. New Brunswick Williams Energy Company Delaware Williams Energy European Services Ltd. United Kingdom Williams Energy Management LLC Delaware Williams Energy Marketing & Trading Canada, Inc. New Brunswick Williams Energy Marketing & Trading Europe Ltd England Williams Energy Marketing & Trading Holdings UK Ltd. United Kingdom Williams Energy Network, Inc. Delaware Williams Energy Services, LLC Delaware Williams Energy Solutions, Inc. Delaware Williams Energy, L.L.C. Delaware Williams Environmental Services Company Delaware Williams Equities, Inc. Delaware Williams Exploration Company Delaware Williams Express, Inc. AK Alaska Williams Express, Inc. Delaware Williams Fertilizer, Inc. Delaware Williams Field Services - Gulf Coast Company, L.P. Delaware Williams Field Services - Matagorda Offshore Company, LLC Delaware Williams Field Services Company Delaware Williams Field Services Group, Inc Delaware Williams Flexible Generation, LLC Delaware Williams Gas Company Delaware Williams Gas Energy, Inc. Delaware Williams Gas Pipeline - Alliance Canada, Inc. Alberta Williams Gas Pipeline - Alliance U.S., Inc. Delaware Williams Gas Pipeline Company, LLC Delaware
Williams Gas Pipeline Mexico, S.A. de C.V. Mexico Williams Gas Processing - Gulf Coast Company, L.P. Delaware Williams Gas Processing - Mid-Continent Region Company Delaware Williams Gas Processing - Wamsutter Company Delaware Williams Gas Processing Company Delaware Williams Gathering & Transportation, L.L.C. Oklahoma Williams Generation Company - Hazleton Delaware Williams Global Energy Cayman Limited Cayman Islands Williams Global Holdings Company Delaware Williams GmbH Austria Williams GP LLC Delaware Williams GSR, L.L.C. Delaware Williams GSX Canada Inc. New Brunswick Williams Gulf Coast Gathering Company, LLC Delaware Williams Headquarters Acquisition Company Delaware Williams Headquarters Building Company Delaware Williams Headquarters Building, L.L.C. Delaware Williams Headquarters Management Company Delaware Williams Holdings GmbH Austria Williams Hugoton Compression Services, Inc. Delaware Williams Independence Marketing Company Delaware Williams Indonesia, L.L.C. Delaware Williams Information Technology, Inc. Delaware Williams Intercontinental Holdings Company Delaware Williams International Bermuda Limited Bermuda Williams International Communications, Inc. Delaware Williams International Company Delaware Williams International Cusiana-Cupiagua Limited Cayman Islands Williams International de Mexico, S.A. de C.V. Mexico Williams International Ecuador Cayman Limited Cayman Islands Williams International Ecuadorian Ventures Bermuda Limited Bermuda Williams International El Furrial Limited Cayman Islands Williams International Guara Limited Cayman Islands Williams International Holdings Limited Cayman Islands Williams International Investment Ventures Cayman Limited Cayman Islands Williams International Investments Cayman Limited Cayman Islands Williams International Jose Limited Cayman Islands Williams International Oil & Gas Venezuela Limited Cayman Islands Williams International Operations Ecuador Limited Cayman Islands Williams International Operations Venezuela Limited Cayman Islands Williams International Pigap Limited Cayman Islands Williams International Pipeline Company Delaware Williams International Services Company Nevada Williams International Telecom Limited Delaware Williams International Telecommunications Investments Cayman Limited Cayman Islands Williams International Venezuela Limited Cayman Islands
Williams International Ventures Bermuda Ltd. Bermuda Williams Learning Center, Inc. Delaware Williams Lietuva Lithuania Williams Lynxs Alaska CargoPort, L.L.C. Alaska Williams Memphis Terminal, Inc. Delaware Williams Merchant Services Company, Inc. Delaware Williams Mid-South Pipelines, LLC Delaware Williams Midstream Marketing and Risk Management, LLC Delaware Williams Midstream Natural Gas Liquids, Inc. Delaware Williams Mobile Bay Producer Services, L.L.C. Delaware Williams Natural Gas Liquids Canada, Inc. Alberta Williams Natural Gas Liquids, Inc. Delaware Williams Natural Gas Storage, LLC Delaware Williams New Soda, Inc. Delaware Williams NGL, LLC Delaware Williams Northern NGL Pipeline, L.L.C. Delaware Williams Oil Gathering, L.L.C. Delaware Williams Olefins Feedstock Pipelines, L.L.C. Delaware Williams Olefins, L.L.C. Delaware Williams One-Call Services, Inc. Delaware WILLIAMS PETROLEOS ESPANA, S.L. Spain Williams Petroleum Pipeline Systems, Inc. Delaware Williams Petroleum Services, LLC Delaware Williams Pipe Line Company, LLC Delaware Williams Pipeline Services Company Delaware Williams Pipelines Holdings, L.P. Delaware Williams Portfolio Holdings, LLC Delaware Williams Power Company, Inc. Delaware Williams Production - Gulf Coast Company, L.P. Delaware Williams Production Company, LLC Delaware Williams Production Holdings LLC Delaware Williams Production Mid-Continent Company Oklahoma Williams Production RMT Company Delaware Williams Production Rocky Mountain Company Delaware Williams Refining & Marketing, L.L.C. Delaware Williams Relocation Management, Inc. Delaware Williams Resource Center, L.L.C. Delaware Williams Risk Holdings, L.L.C. Delaware Williams Risk Management L.L.C. Delaware Williams Soda Holdings, LLC Delaware Williams Sodium, LLC Delaware Williams Sodium Products Company Delaware Williams Strategic Sourcing Company Delaware Williams Strategic Ventures, LLC Delaware Williams Trading UK Ltd. United Kingdom Williams TravelCenters, Inc. Delaware
Williams Underground Gas Storage Company Delaware Williams Western Holding Company, Inc. Delaware Williams Western Pipeline Company, LLC Delaware Williams Wireless, Inc. Delaware Williams WPC - I, Inc. Delaware Williams WPC - II, Inc. Delaware Williams WPC International Company Delaware WilMart, Inc. Delaware WilPro Energy Services El Furrial Limited Cayman Islands WilPro Energy Services Pigap II Limited Cayman Islands Worldwide Services Limited Cayman Islands WPX Enterprises, Inc. Delaware WPX Gas Resources Company Delaware