S.F. Group Saba Petroleum Co. Saber Energy Corp. Sable Minerals Inc. Sage Energy Co. Sahara Enterprises Inc. Sakura Bank Ltd. Samedan Oil Corp. Samson Cos. Samson Resources Samuel Gary Jr. & Associates Inc. San Saba Resources Sandefer Capital Partners Sanguine Ltd. Santa Fe Natural Resources Inc. Santa Fe Snyder Corp. Santos Americas & Europe Corp. Saunders Karp & Co. LP. Savant Energy Corp. Scana Exploration Co. Scavenger Oil Co. Inc. Schrodor Wertheim Investment Services Co. Scope Operating Co. Scott, Douglas, and Luton Sea Dragon Energy Inc. Seagull Energy E & P Inc. Selection Oil Ltd. Sembgas PTE. Ltd. Seneca Resources Corp. Seplat Petroleum Development Co. Plc Serious Fraud Office Severgazprom Ltd. Shale Exploration Holdings Ltd. Sharon Resources Inc. SHDD Inc. Shelby Resources LLC. Shell International Shenandoah Energy Inc. Shoreline Natural Resources Ltd. Shore Oil Co. Shoshone and Arapahoe Tribes Sibir Energy PLC. Sierra Mineral Development LC. Sigma Energy Corp. Silver Butte Petroleum Inc. Simmons Santa Barbara Ltd. Single Tree Resources Inc. Sintez Corp. SK E & P Co. Sklar & Philips Oil Co. Slate River Resources Inc. Smith Offshore Exploration Co. Snyder Oil Corp. Sojitz Energy Venture Inc. Solex Energy Co. Inc. Somerset Exploration Corp. Sonangol Group Sonoran Energy (Jordan) Ltd. South Coast Exploration Co. South Dabaa Petroleum Co. South River Oil & Gas Southern Minerals Corp. Southern Star Energy Inc. Southwestern Energy Production Spirit Energy 76 Spooner Petroleum Co. Standard Ventures LLC. Stanley Energy Inc. Star Acquisition Corp. LLC. Starlight Corp. State of California Public Utilities Commission Statoil Energy Inc. StatoilHydro Stellarton Energy Corp. Sterling Energy Inc. Stingray Pipeline Co. Stone & Webster Management Co. Stone Energy Corp. Stonetex Oil Corp. Strand Energy LC. Stratic Energy Corp. Strike Oil Ltd. STT and Energy LC. Sue-Ann Production Co. Sun Bank Suncor Energy Inc. Sunoma Energy Corp. Swan Hills Energy Ltd. Partnership Swift & Co. Swiss Bank Corp. |
SA Oil and Gas Corp. Sabco Oil and Gas Corp. Sabine Hub Services Inc. Saga Petroleum LLC. Sago Energy LLC. Sahara Oil & Gas Co. Salomon Brothers Inc. Samek International Samson Lone Star LLC. Samsung Corp. San Saba Energy LP. Sanchez Oil & Gas Corp. Sands Oil Co. Santa Fe Minerals Inc. Santa Fe Petroleum LLC. Santander Investment Santos Ltd. Savage Resources LLC. Savoy Energy Inc. Scana Petroleum Resources Inc. Schlumberger Scimitar Hydrocarbons Corp. Scott and Whitehead Scout Exploration Inc. Seacrest Co. LLC. Segundo Navarro Drilling Inc. Sembawang Gas Pte. Ltd. (Sembgas) Seneca Energy Canada Inc. Serendipity Exploration Corp. Seven Seas Petroleum Inc. SGS Limited Partnership Shamrock Holdings Sharpe Energy Co. Sheffield Exploration Co. Inc. Shell Canada Resources Ltd. Shell Offshore Inc. Sheridan Production Co. LLC. Shoreline Exploration Co. Inc. SHV Oil and Gas Co. Sidanco Sierra Production Co. Signalta Resources Ltd. Silver North Co. Ltd. Sinclair Oil Corp. Sinopec Sioux Pointe Inc. Skadden, Arps, Slate, Meagher Slam Resources Inc. Smith Energy Co. SMK Energy Corp. Soco International Inc. Sole Energy Co. LLC. SOLV EX Corp. Sonat Exploration Co. South American Investments Inc. South Coast Oil Corp. South Padre Gas Partners LP. Southeast Alabama Gas District Southern Pacific Petroleum U.S.A. Southwest Royalties Inc. Sowood Commodity Partners Fund Spitfire Exploration Ltd. St. Mary Land & Exploration Co. Stanford Energy Corp. Stanolind Oil & Gas Corp. Star Energy Corp. Starway Capital Advisors LLC. State of New Mexico Statoil Exploration (US) Inc. Stealth Oil Corp. Stephens Natural Gas Steve Skrivanos Engineering Inc. Stolt Offshore Inc. Stone and Webster Oil Co. Inc. Stonebridge Merchant Capital Corp. Strader Hallett & Co. Strand Partners Stratum Group LP. STS-Service LLP. Subsurface Consultants Suelopetrol Sunburst Exploration Inc. Sundance Energy Inc. Sunstone Energy Swanson Oil & Gas Inc. Swift Energy Co. Synergy Oil and Gas Inc. |