1st Resource Group Inc Air Liquide Group Alaska Natural Gas to Liquids (ANGTL) Australia Power Energy Axens Bayer Technology Services GmbH Beach Energy BP plc Central Petroleum Ltd Chevron Australia Chevron Corporation Chevron Nigeria Limited (CNL) ChevronTexaco China Petroleum & Chemical Corporation Limited (Sinopec) China United International Petroleum & Chemicals Co. Ltd Chiyoda Corporation CompactGTL plc ConocoPhillips Corporation Cosmo Oil Davy Process Technology Ltd Drake Synergy Petroleum Ltd Dynamic Fuels Egyptian General Petroleum Corporation (EGPC) Egyptian National Gas Holding Company (ENGHC) Emerging Fuels Technology, Inc Engelhard Eni S.P.A EniTecnologie ExxonMobil Corporation Forest Oil Foster Wheeler Gazprom Gazprom Neft Gazprom VNIIGAZ GE Oil & Gas General Electric Company (GE) GTL Bolivia GTL Resources plc GTL.F1 INPEX Corporation Ivanhoe Energy Canada Inc. Japan Oil, Gas and Metals National Corp (JOGMEC) Japan Petroleum Exploration (JAPEX) Johnson Matthey Korea National Oil Company (KNOC) Linc Energy Lurgi PSI Inc Marathon Oil Corporation (Marathon) Mitsubishi Group Mitsubishi Oil Mitsui Ocean Development & Engineering Company (MODEC) Inc Naftec Narkangan Gas to Liquid International Company (Narkangan GTL) National Petrochemical Company (NPC) Iran Nigerian National Petroleum Company (NNPC) Nippon GTL Technology Research Association (Nippon-GTL) Nippon Oil Nippon Steel Engineering Oryx GTL Limited Oxford Catalysts Oxford Catalysts Group PLC Perusahaan Pertambangan Minyak dan Gas Bumi Negara, lit. 'State Oil and Natural Gas Mining Company (Pertamina) Petro-Canada Petróleo Brasileiro S.A. (Petrobras) Petróleos de Venezuela, S.A (PDVSA) Petróleos Mexicanos (Pemex) Petroleum Company of Trinidad & Tobago Limited (Petrotrin) Petroleum Oil and Gas Corporation of South Africa (PetroSA) Pty Ltd Petroliam Nasional Berhad (Petronas) Qatar Airways Qatar International Petroleum Marketing Company Ltd (Tasweeq) Qatar Petroleum (QP) Rentech Energy Midwest Corporation (REMC) Rentech, Inc. (Rentech) Repsol YPF Royal Dutch Shell plc (Shell) Sasol Chevron Sasol Limited Sasol Synfuels International (SSI) Pty Limited SGC Energia Shell Argentina Shell Australia Shell Indonesia Shell Iran Shell Malaysia Shenua Ningxia Coal Industry Group Sinopec Group Société Nationale pour la Recherche, la Production, le Transport, la Transformation, et la Commercialisation des Hydrocarbures s.p.a (Sonatrach) South African Airways Statoil ASA Sumitomo Precision Products Co Syntroleum Corporation Syntroleum Peru Talisman Energy Inc. Tata Group Toyo Engineering Corporation Trinidad & Tobago Oil Company Limited (Trintoc) Trinidad & Tobago Petroleum Company Limited (Trintopec) Tyson Foods Inc UMED Holdings Inc Uzbekneftegaz National Holding Company (Uzbekneftegaz) Velocys Inc World GTL Inc World GTL Trinidad Limited (WGTL-TL) Yakut Energy Ltd Zeton Inc