| 28001 | Stelbar Oil Corporation, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Jan 2025 |
| 28002 | Stellar Oil Company | Arvada, CO 80006 | Oil & Gas Operator | Dec 1998 |
| 28003 | Steller Energy & Investment Corp | Plano, TX 75093 | Oil & Gas Operator | Feb 2021 |
| 28004 | Stellex | De Leon, TX 76444 | Oil & Gas Operator | May 2025 |
| 28005 | Stelucan Energy, LLC | Wichita Falls, TX 76310 | Oil & Gas Operator | May 2025 |
| 28006 | Stelzer Drilling Co. Inc. | Post, TX 79356 | Oil Operator | May 2025 |
| 28007 | Stelzer, E.A. Oil Company | Post, TX 79356 | Oil & Gas Operator | Feb 2002 |
| 28008 | Stelzer, J. C. | Post, TX 79356 | Oil & Gas Operator | Dec 1995 |
| 28009 | Stenco | | Oil & Gas Operator | Apr 1994 |
| 28010 | Stepco Incorpora | | Oil Operator | Nov 1994 |
| 28011 | Stepco Oil & Gas, LLC | Coyanosa, TX 79730 | Oil & Gas Operator | May 2025 |
| 28012 | Stepco Oil, Inc. | Ellinwood, KS 67526 | Oil Operator | Jan 2020 |
| 28013 | Stepco, Inc. | Ellinwood, KS 67526 | Oil Operator | Feb 2005 |
| 28014 | Stephen Debrular Dba Stephen Gas Company | Weston, WV 26452-7396 | Gas Operator | Dec 2021 |
| 28015 | Stephen J Svetlak LLC | Canton, OH 44718 | Oil & Gas Operator | Dec 2023 |
| 28016 | Stephen L Satterfield Production Company | Grantsville, WV 26147-0757 | Oil & Gas Operator | Nov 2021 |
| 28017 | Stephen Michael Inc | Midwest City, OK 73130-5200 | Oil & Gas Operator | Oct 2015 |
| 28018 | Stephen W. Bradford | | Oil Operator | Dec 1996 |
| 28019 | Stephens & Johnson Op Co | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2025 |
| 28020 | Stephens & Johnson Operating Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2025 |
| 28021 | Stephens Energy Company LLC | | Oil & Gas Operator | Jun 2012 |
| 28022 | Stephens Energy Corp. | Graham, TX 76450 | Oil & Gas Operator | Feb 2022 |
| 28023 | Stephens Energy Group LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2025 |
| 28024 | Stephens Exploration, Inc. | Dallas, TX 75367 | Oil & Gas Operator | Mar 2025 |
| 28025 | Stephens Oil Co. | | Oil Operator | Dec 2017 |
| 28026 | Stephens Oil Company, LLC | Stephens, AR 71764 | Oil Operator | Jul 2024 |
| 28027 | Stephens Operating Inc | Ardmore, OK 73401 | Oil & Gas Operator | Sep 2014 |
| 28028 | Stephens Production Company | The Woodlands, TX 77381 | Oil & Gas Operator | Mar 2025 |
| 28029 | Stephens Williston, LLC Dba Seg Williston, LLC | | Oil & Gas Operator | Mar 2025 |
| 28030 | Stephens, Autry C. | Midland, TX 79701 | Oil & Gas Operator | Mar 2023 |
| 28031 | Stephens, Clayton E. | Dallas, TX 75229 | Oil & Gas Operator | Nov 2011 |
| 28032 | Stephens, Glynn | Overton, TX 75684 | Oil & Gas Operator | Oct 2001 |
| 28033 | Stephens, Hayseed Oil Inc. | Weatherford, TX 76087 | Oil & Gas Operator | Mar 2008 |
| 28034 | Stephens, Mickie L. | MC Camey, TX 79752 | Oil & Gas Operator | Aug 1998 |
| 28035 | Stephens, Morris | Graham, TX 76450 | Oil & Gas Operator | May 1996 |
| 28036 | Stephenson Group Natural Gas Co | Smicksburg, PA 16256-1710 | Gas Operator | Dec 2020 |
| 28037 | Stephenson John | | Oil Operator | Dec 1985 |
| 28038 | Stephenson L G & | | Oil Operator | Apr 1987 |
| 28039 | Stephenson Mark M | Smicksburg, PA 16256-1710 | Gas Operator | Dec 2009 |
| 28040 | Stephenson Oil & Gas, Inc. | Eastland, TX 76448 | Oil & Gas Operator | Sep 1999 |
| 28041 | Stephenson W W Pet Corp | Edmond, OK 73003-0014 | Oil & Gas Operator | Jul 2017 |
| 28042 | Stephenson, Light | Whitsett, TX 78075 | Oil & Gas Operator | Nov 2000 |
| 28043 | Sterling Drillin | | Oil & Gas Operator | Mar 1992 |
| 28044 | Sterling Drilling Company | Pratt, KS 67124 | Oil & Gas Operator | Apr 2014 |
| 28045 | Sterling Energy Corporation | Denver, CO 80202 | Oil & Gas Operator | Sep 1995 |
| 28046 | Sterling Energy Resources, Inc. | Overland Park, KS 66212 | Oil Operator | May 2019 |
| 28047 | Sterling Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2015 |
| 28048 | Sterling Engine Service, Inc. | Alice, TX 78333 | Oil & Gas Operator | May 2025 |
| 28049 | Sterling Expl. & Prod. Co., LLC | Houston, TX 77057 | Oil & Gas Operator | May 2025 |
| 28050 | Sterling Explora | | Oil & Gas Operator | Jun 1994 |
| 28051 | Sterling Exploration | Lee'S Summit, MO 64082 | Gas Operator | Nov 1997 |
| 28052 | Sterling Inv. Group & Assc., Inc | Baytown, TX 77522 | Oil & Gas Operator | May 2025 |
| 28053 | Sterling Oil & G | | Oil Operator | May 1984 |
| 28054 | Sterling Oil And Gas | Weatherford, TX 76086 | Oil & Gas Operator | May 2025 |
| 28055 | Sterling Oil Co. | Sterling, KS 67579 | Oil Operator | Feb 2000 |
| 28056 | Sterling Oil Of Okla Inc | Tulsa, OK 74170-2163 | Oil & Gas Operator | Nov 2006 |
| 28057 | Sterling Operators Inc | | Oil Operator | Mar 2025 |
| 28058 | Sterling Petrole | | Oil & Gas Operator | Sep 1992 |
| 28059 | Sterling Properties Inc | Lawton, OK 73501-9601 | Oil Operator | Jan 2025 |
| 28060 | Sterlynn Oil & Gas, Inc. | Harper, TX 78631 | Oil Operator | May 2025 |
| 28061 | Stesco Operating Company LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | Feb 2025 |
| 28062 | Stetson Energy Corporation | Duncan, OK 73534-0098 | Oil & Gas Operator | Mar 2015 |
| 28063 | Stetson Petroleum Corp. | Rollins, MT 59931 | Oil & Gas Operator | May 2025 |
| 28064 | Steve Burchett Oil Co | | Oil Operator | Dec 2023 |
| 28065 | Steve Smith | | Gas Operator | Dec 1987 |
| 28066 | Steve'S Oilfield | | Oil Operator | Jul 1994 |
| 28067 | Steveco | | Oil Operator | Feb 1984 |
| 28068 | Steven A. Sayce | | Oil Operator | Jan 2021 |
| 28069 | Steven D Ruppert | Tesuque, NM 87574 | Oil & Gas Operator | Feb 2022 |
| 28070 | Stevens & Tull, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jun 2000 |
| 28071 | Stevens Oil & Gas LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2024 |
| 28072 | Stevens Quincy O | Oklahoma City, OK 73116-4102 | Oil & Gas Operator | Dec 2019 |
| 28073 | Stevens, Carole J. & Garry M. | Cherry Creek, NY 14723 | Gas Operator | Dec 2023 |
| 28074 | Stevens, Dale E | Grayson, KY 41143 | Oil Operator | Dec 2023 |
| 28075 | Stevenson Oil Company, Inc. | Lovington, NM 88260 | Oil & Gas Operator | Mar 2025 |
| 28076 | Stevenson, Albert | | Oil & Gas Operator | Jun 1979 |
| 28077 | Stevenson, Ken & Associates, Inc | La Grange, TX 78945 | Oil & Gas Operator | Sep 2002 |
| 28078 | Stevie'S Shale Well LLC | Woodhull, NY 14898 | Gas Operator | Dec 2023 |
| 28079 | Steward Energy II, LLC | Frisco, TX 75034 | Oil & Gas Operator | May 2025 |
| 28080 | Steward Energy, LLC | Frisco, TX 75034 | Oil & Gas Operator | Nov 2014 |
| 28081 | Steward Petroleum Company | | Oil & Gas Operator | Nov 1995 |
| 28082 | Stewardship Resources | Roanoke, TX 76262 | Oil & Gas Operator | Jun 2022 |
| 28083 | Stewart & Porter | Mingus, TX 76463 | Oil & Gas Operator | Apr 2002 |
| 28084 | Stewart Construction | Graham, TX 76450 | Oil Operator | May 2025 |
| 28085 | Stewart Contract Services | Strawn, TX 76475 | Oil & Gas Operator | May 2025 |
| 28086 | Stewart Drilling Co. Inc | Lancaster, OH 43130 | Oil & Gas Operator | Dec 1990 |
| 28087 | Stewart Drilling Program | Home, PA 15747-9801 | Oil & Gas Operator | Dec 2014 |
| 28088 | Stewart Family Holdings LLC | Weatherford, TX 76087 | Oil & Gas Operator | May 2025 |
| 28089 | Stewart Inc | Ringling, OK 73456 | Oil & Gas Operator | Mar 2025 |
| 28090 | Stewart K Petroleum Corp | Edmond, OK 73013 | Oil & Gas Operator | Mar 2015 |
| 28091 | Stewart Morris E Oil Company | Oklahoma City, OK 73132 | Oil & Gas Operator | Jan 2013 |
| 28092 | Stewart Morris E Operating Co LLC | Oklahoma City, OK 73172-0600 | Oil & Gas Operator | Jul 2008 |
| 28093 | Stewart Oil & Gas | Stephenville, TX 76401 | Gas Operator | May 2025 |
| 28094 | Stewart Oil & Gas Investments Inc | Porum, OK 74455 | Gas Operator | Mar 2025 |
| 28095 | Stewart Oil Comp | | Oil Operator | Jul 1993 |
| 28096 | Stewart Oil Company | | Oil Operator | Jun 2009 |
| 28097 | Stewart Operating | | Oil Operator | Jul 2019 |
| 28098 | Stewart Petroleum Corporation | Greenwood VIllage, CO 80111 | Oil & Gas Operator | Dec 2023 |
| 28099 | Stewart Producers | Lancaster, OH 43130 | Oil & Gas Operator | Dec 1984 |
| 28100 | Stewart Producers, Inc. | Mount Vernon, IL 62864 | Oil & Gas Operator | Jan 2025 |