| 9001 | Edgewood Exploration Inc. | | Oil & Gas Operator | Mar 1993 |
| 9002 | Edgington, Jimmy C | MT Carmel, IL 62863 | Oil Operator | Dec 2021 |
| 9003 | Edinburgh Energy Partners, LLC | Midland, TX 79707 | Oil & Gas Operator | May 2025 |
| 9004 | Edinger Engineering, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2025 |
| 9005 | Edinger Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Jun 2007 |
| 9006 | Edinger Incorpor | | Oil Operator | Oct 1986 |
| 9007 | Edington Oil Company | Albany, TX 76430 | Oil & Gas Operator | Aug 2006 |
| 9008 | Edison Beneficial Reuse | | Oil & Gas Operator | Feb 2025 |
| 9009 | Edison Operating Company LLC | Wichita, KS 67226 | Oil & Gas Operator | Jan 2025 |
| 9010 | Edisto Resources Corp | Houston, TX 77057 | Oil & Gas Operator | Oct 1999 |
| 9011 | Edler, John W. And Susan | Irving, NY 14081 | Gas Operator | Dec 2023 |
| 9012 | Edmar Company, L.L.C. | Midland, TX 79702 | Oil & Gas Operator | Feb 2020 |
| 9013 | Edmiston Oil Com | | Oil & Gas Operator | May 1994 |
| 9014 | Edmiston Oil Company, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Jan 2025 |
| 9015 | Edmonds Management Company | Richardson, TX 75081 | Oil & Gas Operator | Mar 2015 |
| 9016 | Edmonds, Karl F. Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2005 |
| 9017 | Edmondson Oil & Gas | Ballinger, TX 76821 | Oil & Gas Operator | May 2025 |
| 9018 | Edp Management Company | Houston, TX 77056 | Oil & Gas Operator | Jul 2018 |
| 9019 | Edward Mike Davis | Las Vegas, NV 89107 | Oil & Gas Operator | Feb 2003 |
| 9020 | Edward Mike Davis, L.L.C. | | Oil & Gas Operator | Dec 2006 |
| 9021 | Edward Oil Company | Youngsville, PA 16371 | Oil & Gas Operator | Nov 2024 |
| 9022 | Edwards & Leach Oil Company | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2005 |
| 9023 | Edwards Energy Corporation | Midland, TX 79702 | Oil & Gas Operator | May 2025 |
| 9024 | Edwards Johnny E | Drumright, OK 74030 | Oil Operator | Apr 2011 |
| 9025 | Edwards Jr L A | Duncan, OK 73534-1348 | Oil & Gas Operator | Sep 1992 |
| 9026 | Edwards Lease,The | | Oil Operator | Oct 2016 |
| 9027 | Edwards Oil & Gas Company | Oklahoma City, OK 73156-0386 | Oil & Gas Operator | Mar 2015 |
| 9028 | Edwards Oil Inco | | Oil Operator | Oct 1984 |
| 9029 | Edwards Oil Properties | | Oil Operator | Dec 2009 |
| 9030 | Edwards Petroleum Company | Houston, TX 77092 | Oil & Gas Operator | Aug 2003 |
| 9031 | Edwards Producing Co.,Inc. | | Oil Operator | Jun 1987 |
| 9032 | Edwards Production Inc | Healdton, OK 73438-6221 | Oil & Gas Operator | Mar 2015 |
| 9033 | Edwards Roy & Co Inc | Edmond, OK 73013-1354 | Oil & Gas Operator | Feb 2012 |
| 9034 | Edwards Timothy D | Broken Arrow, OK 74014-4052 | Oil & Gas Operator | Apr 2015 |
| 9035 | Edwards, Gus Co. | Abilene, TX 79603 | Oil & Gas Operator | Jun 2004 |
| 9036 | Edwards, James | Albany, TX 76430 | Oil & Gas Operator | Sep 2000 |
| 9037 | Edwards-Foster, Inc. | Midland, TX 79708 | Oil & Gas Operator | Aug 1996 |
| 9038 | Edwin L Cox & Berry R Cox-Eni | | Oil & Gas Operator | May 1986 |
| 9039 | Edwin L Cox-Michael Halbouty | | Oil & Gas Operator | Jun 1986 |
| 9040 | Edwin L. Cox | | Oil & Gas Operator | May 1986 |
| 9041 | Edwin L. Cox & Berry R. Cox | | Oil & Gas Operator | Jun 1986 |
| 9042 | Ee3 LLC | | Oil & Gas Operator | Nov 2015 |
| 9043 | Eec Inc | Norman, OK 73069-6344 | Oil & Gas Operator | Mar 2025 |
| 9044 | Eei Inc | MT Pleasant, MI 48858 | Oil & Gas Operator | Dec 1990 |
| 9045 | Eei Operating Inc. | Plano, TX 75093 | Oil & Gas Operator | May 2015 |
| 9046 | Eex Corporation | Houston, TX 77060 | Oil & Gas Operator | Feb 2000 |
| 9047 | Eex E&P Company, L.P. | Houston, TX 77060 | Oil & Gas Operator | Jul 2003 |
| 9048 | Eex Operating, L.P. | Houston, TX 77060 | Oil & Gas Operator | Jul 2003 |
| 9049 | Ef Energy, L.L.C. | Houston, TX 77084 | Oil & Gas Operator | Jun 2015 |
| 9050 | Ef Oil And Gas Invest, L.L.C. | Beaver, OK 73932 | Oil Operator | May 2025 |
| 9051 | Efficiency Operating Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2008 |
| 9052 | Efficiency Operating Service | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2025 |
| 9053 | Egan Resources Inc. | Katy, TX 77494 | Oil & Gas Operator | Oct 2016 |
| 9054 | Eggleston, Garaland | Big Lake, TX 76932 | Oil & Gas Operator | Aug 2003 |
| 9055 | Egh Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 9056 | Egi, Inc. | Big Lake, TX 76932 | Oil & Gas Operator | May 2025 |
| 9057 | Egl Oil And Gas Corporation | Tyler, TX 75703 | Oil & Gas Operator | Aug 2003 |
| 9058 | Ego Operating LLC | Boca Raton, FL 33431 | Oil Operator | Dec 2019 |
| 9059 | Egolf Operating Company | Oklahoma City, OK 73114-7899 | Oil & Gas Operator | Apr 1998 |
| 9060 | Egret Operating Company | Muskogee, OK 74401 | Oil & Gas Operator | Feb 2025 |
| 9061 | Ehb Oil Company | | Oil Operator | Dec 2001 |
| 9062 | Ehrlich, Mitchell | Perryton, TX 79070 | Oil & Gas Operator | May 1999 |
| 9063 | Ehvi Exploration LLC | Tulsa, OK 74103 | Oil & Gas Operator | May 2025 |
| 9064 | Eichenber A H Co | Tulsa, OK 74105 | Oil & Gas Operator | Oct 2002 |
| 9065 | Eidos Energy, Inc. | | Oil & Gas Operator | Oct 2017 |
| 9066 | Eig Petroleum LLC | Asheville, NC 28803-2908 | Oil Operator | Aug 2015 |
| 9067 | Eight Round Corporation | Seminole, OK 74818-1482 | Oil & Gas Operator | Jul 2012 |
| 9068 | Eighty-Six Oil Company, Inc. | Luling, TX 78648 | Oil & Gas Operator | May 2025 |
| 9069 | Einink, Mark B. | Clymer, NY 14724 | Gas Operator | Dec 2023 |
| 9070 | Eise Oil, Inc. | San Antonio, TX 78213 | Oil Operator | May 2025 |
| 9071 | Eishen, Rosalie; Eishen, Eric; And Pray, Leonore | | Oil & Gas Operator | Dec 2024 |
| 9072 | Eitel Energy, LLC | Farlington, KS 66734 | Oil Operator | Dec 2024 |
| 9073 | Ej Brumage & Ra Pultorak | Waynesburg, PA 15370-2434 | Gas Operator | Dec 2018 |
| 9074 | Ekg Operating Inc | Seminole, OK 74818-1028 | Oil & Gas Operator | Nov 2015 |
| 9075 | El Campo Operating, LLC | Dallas, TX 75206 | Oil & Gas Operator | Feb 2011 |
| 9076 | El Chjon Gas Com | | Gas Operator | May 1988 |
| 9077 | El Coqui' Oil Company | Tussy, OK 73088 | Oil & Gas Operator | Oct 2009 |
| 9078 | El Dorado Exploration Co. | | Oil Operator | Dec 1999 |
| 9079 | El Dorado Gas & Oil, Inc. | Dallas, TX 75240 | Oil & Gas Operator | May 2025 |
| 9080 | El Dorado Resources Inc. | Waco, TX 76710 | Oil & Gas Operator | Oct 2009 |
| 9081 | El Indio Energy LLC | Austin, TX 78746 | Oil Operator | Mar 2025 |
| 9082 | El Pache Energy Inc | Duncan, OK 73533 | Oil & Gas Operator | Aug 2017 |
| 9083 | El Pamco Inc | Albuquerque, NM 87191 | Gas Operator | Mar 2020 |
| 9084 | El Paso E&P Company, L.P. | Houston, TX 77002 | Oil & Gas Operator | Mar 2013 |
| 9085 | El Paso E&P Zapata, L.P. | Houston, TX 77002 | Oil & Gas Operator | Dec 2010 |
| 9086 | El Paso Energy Raton LLC | | Gas Operator | Sep 2008 |
| 9087 | El Paso Exploration Company | | Oil & Gas Operator | Jul 1985 |
| 9088 | El Paso Field Services Company | Houston, TX 77002 | Oil & Gas Operator | Aug 2003 |
| 9089 | El Paso Gas Marketing | Unknown, NM 99999 | Oil & Gas Operator | Feb 1997 |
| 9090 | El Paso Natural Gas Company | El Paso, TX 79978 | Oil & Gas Operator | Apr 2013 |
| 9091 | El Paso Production Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2016 |
| 9092 | El Paso Production Gom, Inc. | | Oil & Gas Operator | Nov 2005 |
| 9093 | El Paso Production Oil & Gas Co. | Houston, TX 77252 | Oil & Gas Operator | May 2025 |
| 9094 | El Ran, Inc. | Lubbock, TX 79408 | Oil & Gas Operator | May 2025 |
| 9095 | El Reno Energy, LLC | Granbury, TX 76048 | Oil & Gas Operator | May 2025 |
| 9096 | El Segundo Oil LLC | | Oil Operator | Feb 2025 |
| 9097 | El Toro Oil Co. & Flagg Resc. | | Oil & Gas Operator | May 1993 |
| 9098 | El Toro Production Co., Inc. | | Oil & Gas Operator | Jan 2016 |
| 9099 | El Toro Resources LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | May 2025 |
| 9100 | El Tres Exploration | Houston, TX 77098 | Oil & Gas Operator | Mar 2008 |