| 9001 | Edwards Jr L A | Duncan, OK 73534-1348 | Oil & Gas Operator | Sep 1992 |
| 9002 | Edwards Lease,The | | Oil Operator | Oct 2016 |
| 9003 | Edwards Oil & Gas Company | Oklahoma City, OK 73156-0386 | Oil & Gas Operator | Mar 2015 |
| 9004 | Edwards Oil Inco | | Oil Operator | Oct 1984 |
| 9005 | Edwards Oil Properties | | Oil Operator | Dec 2009 |
| 9006 | Edwards Petroleum Company | Houston, TX 77092 | Oil & Gas Operator | Aug 2003 |
| 9007 | Edwards Producing Co.,Inc. | | Oil Operator | Jun 1987 |
| 9008 | Edwards Production Inc | Healdton, OK 73438-6221 | Oil & Gas Operator | Mar 2015 |
| 9009 | Edwards Roy & Co Inc | Edmond, OK 73013-1354 | Oil & Gas Operator | Feb 2012 |
| 9010 | Edwards Timothy D | Broken Arrow, OK 74014-4052 | Oil & Gas Operator | Apr 2015 |
| 9011 | Edwards, Gus Co. | Abilene, TX 79603 | Oil & Gas Operator | Jun 2004 |
| 9012 | Edwards, James | Albany, TX 76430 | Oil & Gas Operator | Sep 2000 |
| 9013 | Edwards-Foster, Inc. | Midland, TX 79708 | Oil & Gas Operator | Aug 1996 |
| 9014 | Edwin L Cox & Berry R Cox-Eni | | Oil & Gas Operator | May 1986 |
| 9015 | Edwin L Cox-Michael Halbouty | | Oil & Gas Operator | Jun 1986 |
| 9016 | Edwin L. Cox | | Oil & Gas Operator | May 1986 |
| 9017 | Edwin L. Cox & Berry R. Cox | | Oil & Gas Operator | Jun 1986 |
| 9018 | Ee3 LLC | | Oil & Gas Operator | Nov 2015 |
| 9019 | Eec Inc | Norman, OK 73069-6344 | Oil & Gas Operator | Mar 2025 |
| 9020 | Eei Inc | MT Pleasant, MI 48858 | Oil & Gas Operator | Dec 1990 |
| 9021 | Eei Operating Inc. | Plano, TX 75093 | Oil & Gas Operator | May 2015 |
| 9022 | Eex Corporation | Houston, TX 77060 | Oil & Gas Operator | Feb 2000 |
| 9023 | Eex E&P Company, L.P. | Houston, TX 77060 | Oil & Gas Operator | Jul 2003 |
| 9024 | Eex Operating, L.P. | Houston, TX 77060 | Oil & Gas Operator | Jul 2003 |
| 9025 | Ef Energy, L.L.C. | Houston, TX 77084 | Oil & Gas Operator | Jun 2015 |
| 9026 | Ef Oil And Gas Invest, L.L.C. | Beaver, OK 73932 | Oil Operator | Jun 2025 |
| 9027 | Efficiency Operating Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2008 |
| 9028 | Efficiency Operating Service | Wichita Falls, TX 76307 | Oil & Gas Operator | Jun 2025 |
| 9029 | Egan Resources Inc. | Katy, TX 77494 | Oil & Gas Operator | Oct 2016 |
| 9030 | Eggleston, Garaland | Big Lake, TX 76932 | Oil & Gas Operator | Aug 2003 |
| 9031 | Egh Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 9032 | Egi, Inc. | Big Lake, TX 76932 | Oil & Gas Operator | Jun 2025 |
| 9033 | Egl Oil And Gas Corporation | Tyler, TX 75703 | Oil & Gas Operator | Aug 2003 |
| 9034 | Ego Operating LLC | Boca Raton, FL 33431 | Oil Operator | Dec 2019 |
| 9035 | Egolf Operating Company | Oklahoma City, OK 73114-7899 | Oil & Gas Operator | Apr 1998 |
| 9036 | Egret Operating Company | Muskogee, OK 74401 | Oil & Gas Operator | Mar 2025 |
| 9037 | Ehb Oil Company | | Oil Operator | Dec 2001 |
| 9038 | Ehrlich, Mitchell | Perryton, TX 79070 | Oil & Gas Operator | May 1999 |
| 9039 | Ehvi Exploration LLC | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2025 |
| 9040 | Eichenber A H Co | Tulsa, OK 74105 | Oil & Gas Operator | Oct 2002 |
| 9041 | Eidos Energy, Inc. | | Oil & Gas Operator | Oct 2017 |
| 9042 | Eig Petroleum LLC | Asheville, NC 28803-2908 | Oil Operator | Aug 2015 |
| 9043 | Eight Round Corporation | Seminole, OK 74818-1482 | Oil & Gas Operator | Jul 2012 |
| 9044 | Eighty-Six Oil Company, Inc. | Luling, TX 78648 | Oil & Gas Operator | Jun 2025 |
| 9045 | Einink, Mark B. | Clymer, NY 14724 | Gas Operator | Dec 2023 |
| 9046 | Eise Oil, Inc. | San Antonio, TX 78213 | Oil Operator | Jun 2025 |
| 9047 | Eishen, Rosalie; Eishen, Eric; And Pray, Leonore | | Oil & Gas Operator | Dec 2024 |
| 9048 | Eitel Energy, LLC | Farlington, KS 66734 | Oil Operator | Dec 2024 |
| 9049 | Ej Brumage & Ra Pultorak | Waynesburg, PA 15370-2434 | Gas Operator | Dec 2018 |
| 9050 | Ekg Operating Inc | Seminole, OK 74818-1028 | Oil & Gas Operator | Nov 2015 |
| 9051 | El Campo Operating, LLC | Dallas, TX 75206 | Oil & Gas Operator | Feb 2011 |
| 9052 | El Chjon Gas Com | | Gas Operator | May 1988 |
| 9053 | El Coqui' Oil Company | Tussy, OK 73088 | Oil & Gas Operator | Oct 2009 |
| 9054 | El Dorado Exploration Co. | | Oil Operator | Dec 1999 |
| 9055 | El Dorado Gas & Oil, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Jun 2025 |
| 9056 | El Dorado Resources Inc. | Waco, TX 76710 | Oil & Gas Operator | Oct 2009 |
| 9057 | El Indio Energy LLC | Austin, TX 78746 | Oil Operator | Mar 2025 |
| 9058 | El Pache Energy Inc | Duncan, OK 73533 | Oil & Gas Operator | Aug 2017 |
| 9059 | El Pamco Inc | Albuquerque, NM 87191 | Gas Operator | Mar 2020 |
| 9060 | El Paso E&P Company, L.P. | Houston, TX 77002 | Oil & Gas Operator | Mar 2013 |
| 9061 | El Paso E&P Zapata, L.P. | Houston, TX 77002 | Oil & Gas Operator | Dec 2010 |
| 9062 | El Paso Energy Raton LLC | | Gas Operator | Sep 2008 |
| 9063 | El Paso Exploration Company | | Oil & Gas Operator | Jul 1985 |
| 9064 | El Paso Field Services Company | Houston, TX 77002 | Oil & Gas Operator | Aug 2003 |
| 9065 | El Paso Gas Marketing | Unknown, NM 99999 | Oil & Gas Operator | Feb 1997 |
| 9066 | El Paso Natural Gas Company | El Paso, TX 79978 | Oil & Gas Operator | Apr 2013 |
| 9067 | El Paso Production Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2016 |
| 9068 | El Paso Production Gom, Inc. | | Oil & Gas Operator | Nov 2005 |
| 9069 | El Paso Production Oil & Gas Co. | Houston, TX 77252 | Oil & Gas Operator | Jun 2025 |
| 9070 | El Ran, Inc. | Lubbock, TX 79408 | Oil & Gas Operator | Jun 2025 |
| 9071 | El Reno Energy, LLC | Granbury, TX 76048 | Oil & Gas Operator | Jun 2025 |
| 9072 | El Segundo Oil LLC | | Oil Operator | Mar 2025 |
| 9073 | El Toro Oil Co. & Flagg Resc. | | Oil & Gas Operator | May 1993 |
| 9074 | El Toro Production Co., Inc. | | Oil & Gas Operator | Jan 2016 |
| 9075 | El Toro Resources LLC | Oklahoma City, OK 73134 | Oil & Gas Operator | Jun 2025 |
| 9076 | El Tres Exploration | Houston, TX 77098 | Oil & Gas Operator | Mar 2008 |
| 9077 | El Tres Petr. Corp. | | Oil & Gas Operator | Jan 1984 |
| 9078 | El-Kan Exploration | Garfield, KS 67529 | Oil Operator | Jul 1997 |
| 9079 | El-Oil, LTD. | | Oil & Gas Operator | Nov 2024 |
| 9080 | Elad Petroleum Corporation | | Oil Operator | Jun 2005 |
| 9081 | Elahs Gas Co., Inc. | | Oil & Gas Operator | Dec 2021 |
| 9082 | Elam, Jack G. | Midland, TX 79702 | Oil & Gas Operator | Dec 2002 |
| 9083 | Elam, Jack G., Inc. | Midland, TX 79702 | Oil & Gas Operator | Nov 2002 |
| 9084 | Elan Energy Inc | Toledo, OH 43604-1207-1207 | Oil & Gas Operator | Dec 1990 |
| 9085 | Eland Energy Inc | Dallas, TX 75248 | Oil & Gas Operator | Apr 2025 |
| 9086 | Elb Enterprise LLC | | Oil Operator | Jan 2025 |
| 9087 | Elba Oil Company LLC | Macksburg, OH 45746 | Oil Operator | Dec 2024 |
| 9088 | Elco Oil & Gas | San Angelo, TX 76902 | Oil & Gas Operator | Dec 2014 |
| 9089 | Elco Oil & Gas, Inc. | San Angelo, TX 76902 | Oil & Gas Operator | Jun 2025 |
| 9090 | Elco Resources LLC | Owasso, OK 74055-7575 | Oil & Gas Operator | Apr 2025 |
| 9091 | Elder & Vaughn Inc | Oklahoma City, OK 73154-0938 | Oil & Gas Operator | Mar 2008 |
| 9092 | Elder Oil & Gas Co | Parker, PA 16049-6426 | Oil & Gas Operator | Dec 2024 |
| 9093 | Elder Oil Co. | West Union, WV 26456 | Oil & Gas Operator | Dec 2021 |
| 9094 | Eldon Oil Co. | Three Rivers, TX 78071 | Oil & Gas Operator | Jun 2025 |
| 9095 | Eldon Radke | | Oil Operator | May 2001 |
| 9096 | Eldorado Gas Inc. | | Oil & Gas Operator | May 1986 |
| 9097 | Eldorado Oil And Gas, Inc. | Dallas, TX 75230 | Oil & Gas Operator | Nov 1995 |
| 9098 | Eldorado Operating Co. | Dallas, TX 75230 | Oil & Gas Operator | Jul 2004 |
| 9099 | Eldred Prod And Consulting, LLC | Nocona, TX 76255 | Oil Operator | Jun 2025 |
| 9100 | Elec Materials Co | North East, PA 16428-1539 | Gas Operator | Dec 1994 |