| | |
| ENTITY | | JURISDICTION |
| Access Midstream Partners, L.P. | | Delaware |
| Access Midstream Partners, L.L.C. | | Delaware |
| Alliance Canada Marketing L.P. | | Alberta |
| Alliance Canada Marketing LTD | | Alberta |
| Arctic Fox Assets, Inc. | | Delaware |
| Aspen Products Pipeline LLC | | Delaware |
| 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 |
| Caiman Energy II, LLC | | Delaware |
| Caiman Ohio Midstream, LLC | | Delaware |
| Carbon County UCG, Inc. | | Delaware |
| Carbonate Trend Pipeline LLC | | Delaware |
| Cardinal Operating Company, LLC | | Delaware |
| Cardinal Pipeline Company, LLC | | North Carolina |
| Catskills Express Pipeline Company LLC | | Delaware |
| ChoiceSeat, L.L.C. | | Delaware |
| Constitution Pipeline Company LLC | | Delaware |
| Conway Connector Pipeline Company LLC | | Delaware |
| Discovery Gas Transmission LLC | | Delaware |
| Discovery Producer Services LLC | | Delaware |
| Distributed Power Solutions L.L.C. | | Delaware |
| DMP New York, Inc. | | New York |
| ESPAGAS USA, Inc. | | Delaware |
| F T & T, Inc. | | Delaware |
| Goebel Gathering Company, L.L.C. | | Delaware |
| Gulf Liquids Holdings LLC | | Delaware |
| Gulf Liquids New River Project LLC | | Delaware |
| Gulf Star Deepwater Services, LLC | | Delaware |
| Gulfstar One LLC | | Delaware |
| Gulfstream Management & Operating Services, L.L.C. | | Delaware |
| Gulfstream Natural Gas System, L.L.C. | | Delaware |
| HI-BOL Pipeline LLC | | Delaware |
| Inland Ports, Inc. | | Tennessee |
| Laser Northeast Gathering Company, LLC | | Delaware |
| Laurel Mountain Midstream Operating LLC | | Delaware |
| Laurel Mountain Midstream, LLC | | Delaware |
| Liberty Operating Company | | Delaware |
| LNE Pipeline Corporation | | New York |
| LNGC Development Company, LLC | | Delaware |
| LNGC Holding, LLC | | Delaware |
| Longhorn Enterprises of Texas, Inc. | | Delaware |
| MAPCO Alaska Inc. | | Alaska |
| MAPCO LLC | | Delaware |
| Marcellus Midstream Energy, LLC | | Delaware |
| Marsh Resources, LLC | | Delaware |
| Mid-Continent Fractionation and Storage, LLC | | Delaware |
| Northwest Pipeline GP | | Delaware |
| Northwest Pipeline Services LLC | | Delaware |
| | |
| 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 |
| Pine Needle LNG Company, LLC | | North Carolina |
| Pine Needle Operating Company, LLC | | Delaware |
| Reserveco, Inc. | | Delaware |
| TWC Holdings C.V. | | Netherlands |
| The Williams Companies Foundation, Inc. | | Oklahoma |
| The Williams Companies, International Holdings B.V. | | Dutch BV |
| Thermogas Energy LLC | | Delaware |
| Three Rivers Midstream LLC | | Delaware |
| Touchstar Energy Technologies, Inc. | | Texas |
| TransCardinal Company, LLC | | Delaware |
| TransCarolina LNG Company, LLC | | Delaware |
| Transco Coal Gas Company | | Delaware |
| Transco Energy Company, LLC | | Delaware |
| Transco Exploration Company | | Delaware |
| Transco Gas Company, LLC | | Delaware |
| Transco Liberty Pipeline Company | | Delaware |
| Transco P-S Company | | Delaware |
| Transco Pipeline Services LLC | | Delaware |
| Transco Resources, Inc. | | Delaware |
| Transcontinental Gas Pipe Line Company, LLC | | Delaware |
| Transeastern Gas Pipeline Company, Inc. | | Delaware |
| Tulsa Williams Company | | Delaware |
| WFS Liquids LLC | | Delaware |
| WFS—Pipeline LLC | | Delaware |
| WFS Enterprises, LLC | | Delaware |
| WFS Gathering Company, L.L.C. | | Delaware |
| WGP Development, LLC | | Delaware |
| WGP Gulfstream Pipeline Company, L.L.C. | | Delaware |
| WGP International Canada, Inc. | | New Brunswick |
| WGPC Holdings LLC | | Delaware |
| Wamsutter LLC | | Delaware |
| WilPro Energy Services (El Furrial) Limited | | Cayman Islands |
| WilPro Energy Services (Pigap II) Limited | | Cayman Islands |
| Williams Acquisition Holding Company, Inc. (Del) | | Delaware |
| Williams Acquisition Holding Company LLC | | New Jersey |
| Williams Aircraft, Inc. | | Delaware |
| Williams Alaska Petroleum, Inc. | | Alaska |
| Williams Alliance Canada Marketing, Inc. | | New Brunswick |
| Williams Blu Operating LLC | | Delaware |
| Williams CV Holdings LLC | | Delaware |
| Williams Discovery Pipeline, LLC | | Delaware |
| Williams Distributed Power Services, Inc. | | Delaware |
| Williams Energy Canada ULC | | Alberta |
| Williams Energy Marketing & Trading Europe Ltd | | England |
| Williams Energy Resources LLC | | Delaware |
| Williams Energy Services, LLC | | Delaware |
| Williams Energy Solutions LLC | | Delaware |
| Williams Energy, L.L.C. | | Delaware |
| Williams Equities, Inc. | | Delaware |
| Williams Exploration Company | | Delaware |
| Williams Express, Inc. (AK) | | Alaska |
| Williams Express LLC | | Delaware |
| | |
| Williams Fertilizer, Inc. | | 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 GP LLC | | Delaware |
| Williams Gas Marketing Services, 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 Company | | Delaware |
| Williams Holdings Limited | | Barbados |
| Williams Indonesia, L.L.C. | | Delaware |
| Williams Information Technology, Inc. | | Delaware |
| Williams International (Bermuda) Limited | | Bermuda |
| Williams International Company LLC | | Delaware |
| Williams International El Furrial Limited | | Cayman Islands |
| Williams International Investments (Cayman) Limited | | Cayman Islands |
| Williams International Pigap Limited | | Cayman Islands |
| Williams International Services Company | | Nevada |
| Williams International Telecommunications Investments(Cayman) Limited | | Cayman Islands |
| Williams International Venezuela Limited | | Cayman Islands |
| Williams Laurel Mountain, LLC | | Delaware |
| Williams Longhorn Holdings, LLC | | Delaware |
| Williams Memphis Terminal, Inc. | | Delaware |
| Williams Merchant Services Company, LLC | | Delaware |
| Williams Merger Subsidiary, Inc. | | Delaware |
| Williams Mid-South Pipelines, LLC | | Delaware |
| Williams Midstream Natural Gas Liquids, Inc. | | Delaware |
| Williams Midstream Services, LLC | | Delaware |
| Williams Mobile Bay Producer Services, L.L.C. | | Delaware |
| Williams Natural Gas Liquids LLC | | Delaware |
| Williams New Soda, Inc. | | Delaware |
| Williams Ohio Valley Midstream LLC | | Texas |
| 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 One-Call Services, Inc. | | Delaware |
| Williams Pacific Connector Gas Operator, LLC | | Delaware |
| Williams Pacific Connector Gas Pipeline, LLC | | Delaware |
| Williams Partners Finance Corporation | | Delaware |
| Williams Partners GP LLC | | Delaware |
| Williams Partners Holdings LLC | | Delaware |
| Williams Partners L.P. | | Delaware |
| Williams Partners Operating LLC | | Delaware |
| Williams PERK, LLC | | Delaware |
| WILLIAMS PETROLEOS ESPAÑA, S.L. | | Spain |
| Williams Petroleum Pipeline Systems, Inc. | | Delaware |
| Williams Petroleum Services, LLC | | Delaware |
| Williams Pipeline GP LLC | | Delaware |
| Williams Pipeline Operating LLC | | Delaware |
| Williams Pipeline Partners Holdings LLC | | Delaware |
| | |
| Williams Pipeline Partners L.P. | | Delaware |
| Williams Pipeline Services LLC | | Delaware |
| Williams Production Services, LLC | | Delaware |
| Williams Production—Gulf Coast Company, L.P. | | Delaware |
| Williams Purity Pipelines, LLC | | Delaware |
| Williams Refining & Marketing, L.L.C. | | Delaware |
| Williams Relocation Management, Inc. | | 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 Uinta Gathering, LLC | | Delaware |
| Williams Underground Gas Storage Company | | Delaware |
| Williams WPC—I, LLC | | Delaware |
| Williams WPC—II, Inc. | | Delaware |
| Williams WPC International Company | | Delaware |
| Williams Western Holding Company, Inc. | | Delaware |
