| 9401 | Energy Operations Colorado LP | | Oil & Gas Operator | Nov 2009 |
| 9402 | Energy Operations Oklahoma LP | Houston, TX 77002-6785 | Oil & Gas Operator | Nov 2010 |
| 9403 | Energy Operatng Company Inc | | Oil & Gas Operator | Jan 2000 |
| 9404 | Energy Partners, LTD. | New Orleans, LA 70170 | Oil & Gas Operator | Aug 2012 |
| 9405 | Energy Prod Management Corp | | Oil & Gas Operator | Oct 1991 |
| 9406 | Energy Producers Inc | | Oil Operator | Nov 1989 |
| 9407 | Energy Productio | | Oil & Gas Operator | Jan 1986 |
| 9408 | Energy Production & Sales Co. | | Oil & Gas Operator | Dec 1999 |
| 9409 | Energy Production Co | Pittsburgh, PA 15241-3949 | Oil & Gas Operator | Dec 1994 |
| 9410 | Energy Production Corporation | Kilgore, TX 75663 | Oil & Gas Operator | Jun 2025 |
| 9411 | Energy Production Service Inc | | Oil Operator | Mar 1986 |
| 9412 | Energy Production Services LLC | Oklahoma City, OK 73162-4736 | Oil & Gas Operator | Apr 2020 |
| 9413 | Energy Production, Inc. | Canton, OH 44711 | Oil & Gas Operator | Dec 2021 |
| 9414 | Energy Program Accompany | | Oil Operator | Dec 2006 |
| 9415 | Energy Properties Inc. | | Oil & Gas Operator | Dec 2023 |
| 9416 | Energy Prospector'S Inc | | Oil & Gas Operator | Jun 1997 |
| 9417 | Energy Recovery Group, LLC | | Oil & Gas Operator | Jul 2008 |
| 9418 | Energy Research & Dev. Corp. | | Oil & Gas Operator | Feb 1998 |
| 9419 | Energy Reserves | | Oil & Gas Operator | Oct 1993 |
| 9420 | Energy Reserves GP-Kanaba Oil | | Oil & Gas Operator | Aug 1985 |
| 9421 | Energy Reserves Group | Houston, TX 770563020 | Oil & Gas Operator | Apr 1996 |
| 9422 | Energy Reserves Group LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2018 |
| 9423 | Energy Reserves Group, Inc. | Wichita, KS 67202 | Oil & Gas Operator | May 2002 |
| 9424 | Energy Resource & Develop., Corp | Rockwall, TX 75087 | Oil & Gas Operator | Jun 1998 |
| 9425 | Energy Resource Associates Inc | | Gas Operator | Nov 1988 |
| 9426 | Energy Resource Management, Inc. | Caldwell, TX 77836 | Oil & Gas Operator | Mar 2008 |
| 9427 | Energy Resource Technology Gom, LLC | | Oil & Gas Operator | Oct 2019 |
| 9428 | Energy Resources Corp. | | Oil & Gas Operator | Feb 2025 |
| 9429 | Energy Resources Dev Inc | Bixby, OK 74008-3658 | Oil & Gas Operator | Mar 2025 |
| 9430 | Energy Resources Of Amer Inc | Columbiana, OH 44408 | Oil & Gas Operator | Dec 2021 |
| 9431 | Energy Resources Of America Inc | Austintown, OH 44515 | Oil & Gas Operator | Dec 2022 |
| 9432 | Energy Resources Oil & Gas Corp. | Amarillo, TX 79102 | Oil & Gas Operator | Jun 1994 |
| 9433 | Energy RSRVS GRP-Lavino-Traver | | Oil & Gas Operator | Aug 1985 |
| 9434 | Energy Search Company Inc | Aurora, CO 80011 | Oil & Gas Operator | Jun 2021 |
| 9435 | Energy Search Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2007 |
| 9436 | Energy Search Operating Company | | Oil Operator | Dec 2009 |
| 9437 | Energy Self-Service Oils, Inc. | | Oil & Gas Operator | Apr 2009 |
| 9438 | Energy Service Investment Corp. | Tulsa, OK 74137 | Oil & Gas Operator | May 2006 |
| 9439 | Energy Source, Inc.-Emerald | | Oil & Gas Operator | Apr 1983 |
| 9440 | Energy Sources I | | Oil & Gas Operator | Jul 1986 |
| 9441 | Energy Sources, Inc. | | Oil & Gas Operator | Nov 1990 |
| 9442 | Energy Support Services LLC | Cheyenne, WY 82001 | Oil & Gas Operator | Jan 2025 |
| 9443 | Energy Three, Inc. | Jackson, MS 39211 | Oil & Gas Operator | Mar 2025 |
| 9444 | Energy Transfer Crude Marketing LLC | Dallas, TX 75225 | Oil Operator | Mar 2025 |
| 9445 | Energy Transfer Fuel, LP | Houston, TX 77002 | Oil & Gas Operator | Apr 2005 |
| 9446 | Energy Unlimited Inc | | Oil & Gas Operator | Feb 2005 |
| 9447 | Energy Well Service, Inc. | Stephenville, TX 76401 | Oil & Gas Operator | Oct 2004 |
| 9448 | Energy Xxi Gom, LLC | | Oil & Gas Operator | Dec 2023 |
| 9449 | Energy Xxi Gulf Coast, Inc. | | Oil & Gas Operator | Dec 2008 |
| 9450 | Energy Xxi Onshore, LLC | | Oil & Gas Operator | Dec 2023 |
| 9451 | Energy-Vest, Inc. | Bull Shoals, AR 72619 | Oil Operator | Sep 2009 |
| 9452 | Energypro, Inc. | Magnolia, TX 77354 | Oil & Gas Operator | Jun 2025 |
| 9453 | Energyquest II, LLC | The Woodlands, TX 77381 | Oil & Gas Operator | Mar 2025 |
| 9454 | Energyquest Management, LLC | Houston, TX 77090 | Oil & Gas Operator | Apr 2021 |
| 9455 | Energyquest Operating, L.L.C. | | Oil & Gas Operator | Jun 2023 |
| 9456 | Enerjex Kansas, Inc. | Leawood, KS 66211 | Oil & Gas Operator | Apr 2010 |
| 9457 | Enernet Inc | Oklahoma City, OK 73102-8004 | Oil & Gas Operator | Nov 2014 |
| 9458 | Enerplus Resources USA Corporation | Denver, CO 80202 | Oil & Gas Operator | Apr 2025 |
| 9459 | Enerquest Corporation | Kilgore, TX 75663 | Oil & Gas Operator | Jun 2025 |
| 9460 | Enerquest Oil & Gas LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2025 |
| 9461 | Enerquest Operating, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Jun 2025 |
| 9462 | Enerquest Resources, LLC | Midland, TX 79702 | Oil & Gas Operator | Nov 2005 |
| 9463 | Enersearch Inc | Sand Springs, OK 74063 | Oil & Gas Operator | Dec 2013 |
| 9464 | Enersource Petroleum Inc | Bixby, OK 74008 | Oil & Gas Operator | Mar 2025 |
| 9465 | Enersource Royalty Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | May 2013 |
| 9466 | Enerstar Resources LTD Co. | Midland, TX 79701 | Oil & Gas Operator | Jun 2000 |
| 9467 | Enerstar Resources, L.C. | Midland, TX 79701 | Oil & Gas Operator | Apr 1999 |
| 9468 | Enertec Corporation | Nowata, OK 74048-0632 | Oil & Gas Operator | Sep 2018 |
| 9469 | Enertex, Inc. | Midland, TX 79702 | Oil & Gas Operator | Aug 1995 |
| 9470 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Jun 2025 |
| 9471 | Enervest Operating, L.L.C., A Limited Liability Company | | Oil & Gas Operator | Dec 2019 |
| 9472 | Enervest Opr LLC | Charleston, WV 25301-1782 | Oil & Gas Operator | Dec 2019 |
| 9473 | Enervest Production Partners, LTD. | | Gas Operator | Nov 2024 |
| 9474 | Enervest San Juan Operating | | Gas Operator | Jul 2001 |
| 9475 | Enervest San Juan Operating LLC | Durango, CO 81301 | Gas Operator | Jul 2001 |
| 9476 | Enex Resources C | | Gas Operator | Nov 1987 |
| 9477 | Enex Resources Corporation | Houston, TX 77002 | Oil & Gas Operator | Dec 2009 |
| 9478 | Enex Rexources Corp. | | Oil & Gas Operator | Jul 1981 |
| 9479 | Enexco, Inc. | Dallas, TX 75243 | Oil & Gas Operator | Mar 2017 |
| 9480 | Enfield Operating Company, LLC | Coppell, TX 75019 | Oil Operator | Jun 2025 |
| 9481 | Eng, George E. | Midland, TX 79701 | Oil & Gas Operator | Dec 2011 |
| 9482 | Engas Corporation | Jacksboro, TX 76458 | Oil & Gas Operator | May 2008 |
| 9483 | Engas XP, LLC | Wimberley, TX 78676 | Oil & Gas Operator | Jun 2025 |
| 9484 | Engel Farms Corporation | Liberal, KS 67901 | Gas Operator | Mar 2003 |
| 9485 | Engel Investments LLC | Hays, KS 67601 | Oil Operator | Oct 2024 |
| 9486 | Engelke, R. H. | San Antonio, TX 78230 | Oil & Gas Operator | Jun 2025 |
| 9487 | Engelke, Randall Glen | Luling, TX 78648 | Oil & Gas Operator | Jul 2007 |
| 9488 | Engeo Co. | | Oil & Gas Operator | Nov 1986 |
| 9489 | Engineering & Production Service, Inc. | Farmington, NM 87499 | Oil & Gas Operator | Apr 2025 |
| 9490 | Engineers Oil Company | | Oil & Gas Operator | Apr 2025 |
| 9491 | England Operating LLC | Littleton, CO 80120-4529 | Oil & Gas Operator | Nov 2014 |
| 9492 | Engle, George S | | Oil Operator | Dec 2023 |
| 9493 | Engler, Inc. | Harlingen, TX 78552-0000 | Gas Operator | Dec 2020 |
| 9494 | English Oil & Gas | | Oil Operator | Sep 2021 |
| 9495 | English Oil And Gas, L.L.C. | | Oil Operator | Sep 2021 |
| 9496 | Engroup Resources, L.P. | Houston, TX 77002 | Oil & Gas Operator | Jun 2025 |
| 9497 | Enhanced Energy Partners Corp | Tomball, TX 77377 | Oil & Gas Operator | Jun 2025 |
| 9498 | Enhanced Hydrocarbons Inc | Claremore, OK 74017 | Oil & Gas Operator | May 2013 |
| 9499 | Enhanced RS, Inc. | Luling, TX 78648 | Oil Operator | Jun 2025 |
| 9500 | Eni Us Operating Co. Inc. | | Oil & Gas Operator | Sep 2024 |