S & B Operating LLC
S & C Construction, Inc.
S & H Oilfield Enterprises
S & K Oil Production, Inc.
S & K Oil, Inc.
S & S Oil
S & S Oil and Gas LLC
S & S Oil Company
S & S Oil, L.L.C.
S C B Oil Co.
S&W Oil & Gas LLC
S.B. Oil Company, a General Partnership
S.J. Titan Co., a General Partnership
Sabre Operating, Inc.
Sabre Operating, Inc.
Sage, Larry George
Sagebrush Operating LLC
Salt Creek Resources, LLC
Samco Investments
Samedan Oil Corporation
Samson Resources Company
Samuel Gary Jr. & Associates, Inc.
San Marco Petroleum, Inc.
Sanchez Oil & Gas Corporation
Sand Creek Oil, LLC
Sand Hill Oil Co.
Sand Point LLC
Sanders, John K.
Sandlin Oil Corporation
SandRidge Exploration and Production LLC
Sauder Oil Co., LLC
Saxon Oil Company
Saye, Doyal A.
Schaben Oil LLC
Schankie & Sons, LLC
Schankie Well Service, Inc.
Scheck Oil Operation
Scheibmeir, Daryl
Schendel Enterprises, LLC
Schierling, Eldon J.
Schindler Oil, LLC
Schindler, Joe
Schmeidler, Austin
Schmidt, Terry D.
Schmidt, Tracy
Schofield Energy Company
Schreiber Oil Co.
Schulein Company LLC
Schulte Oil
Schulz Oil & Gas, Inc.
Scott Services LLC
Scott's Production, LLC
Scout Energy Management LLC
SCZ Resources, LLC
SDOCO, LLC
See Oil
Seeker, LLC
Seibert Oil, LLC
SEK Energy, LLC
Seneca Resources Company, LLC
Sentinel Petroleum, Inc.
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Serendipity Production Company LC
Seymour Oil Co., Inc.
Shakespeare Oil Co., Inc.
Shallow Sands, LLC
Sharp, Robert L.
SHAWMAR OIL & GAS CO, INC.
Shawmar Oil & Gas Co., Inc.
Shawnee Investment Company, Inc.
Sheedy Energy Production Company
Shelby Resources LLC
Shell Gulf of Mexico Inc.
Shell Trading US Co
Shelley, Randall D.
Shelton, Robert
Shields Oil Producers Inc.
Sho-Bar Energy, Inc.
Shoreline Operating LLC
Shorts Production LLC
SHS Investments
Sieg Energy, Inc.
Siemsen Operating, LLC
Silhan, Terry
Sirius Energy Corp.
Siroky Oil Management
Six-D Exploration, LLC
SK Oil & Gas, Inc.
Slawson Exploration Company, Inc.
Slawson, Donald C.
Sloan Operations
SM Oil & Gas, Inc.
Smith Oil Co.
Smith Oil Operations
Smith, Darrin R
Smith, Loren L.
Smith, Robert L
Smith, Wanda
Smitherman, Leon C., Jr.
Snedco, Inc.
Snyder, Jim Estate (deceased)
So & Jo, LLC
SO-I , a General Partnership
Somerset Energy, Inc.
Sonoma Resources LLC
Sorensen, Kim A.
Sotta, Donald E.
Soule, Richard A.
Source Energy MidCon LLC
South Central Oil and Gas
Southern Hills Gas Co.
Southern Star Central Gas Pipeline, Inc.
Southwind Petroleum Corp.
Sovereign Operating Company, LLC
Specht Farms
Speedy Well Service
Spess Oil Company, a General Partnership
Spindletop Oil & Gas Co.
Spiral Energy Corp
Splechter, Tim
Spradco, Inc.
Springer, Lee A.
SPS, INC.
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Ssouri Oil Ventures
St Johns Operating #1 LP
ST Petroleum, Inc.
Staab Oil Co., a General Partnership
Stagecoach E & P, LLC
Stalcup Oil Company
Standard Operating Company
Steckel Oil, LLC
Stecklein Oil Company, a General Partnership
Steinberger Bros., Inc.
Steinforth, Loren
Steinle Oil
Steinle, Martin D.
Stelbar Oil Corporation, Inc.
StepCo Oil, Inc.
Stephens & Johnson Operating Co.
Stephens Oil Co.
Sterling Drilling Company
Steward Energy Development Corp
Stewart Oil Co.
Stewart Petroleum Corporation
Stewart Producers, Inc.
Stice Oil Company
Stich Oil Company, a General Partnership
STL Oil & Gas LLC
Stone Oil Company
Stonegate Ranch, LLC
Stoudt, Jean Marie
Strat Land Exploration Co
Strata Exploration, Inc.
StrataKan Exploration, LLC
Stratex Oil & Gas Holdings, Inc.
Stratex Operating, Inc.
Strauss-Pengua Oil Company
Stripper Oil Co
Stroke of Luck Energy & Exploration LLC
Stuber, Virgil
Stucky, Kenneth R, Oil & Gas Opr.
Studer Oil Co.
Stull Oil LLC
Sublette Enterprises, Inc.
Suemaur Exploration & Production, LLC
Suerte Oil Company
Sullivan & Co.
Sullivan and Company LLC
Sullivan, Oil Company, a General Partnership
Summer Sun Gas, Inc.
Summitt Energy, LLC
Sundgren, Stephen E. and Jackie
Sundown Energy Inc.
Sunfire Energy
Sunflower Energy, LLC
Sunflower Well Service, Inc.
SUNOCO PARTNERS MARKETING & TERMINALS LP
Supernova Energy, Inc.
Sutherland, Shane & Ellen
SW Gas Stge
SX54, LLC
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