| 8501 | E O R Petroleum | | Oil Operator | Oct 1987 |
| 8502 | E P C Oil & Gas, Inc. | Caldwell, TX 77836 | Oil & Gas Operator | Jun 2026 |
| 8503 | E R Operating Company | Dallas, TX 75225 | Oil & Gas Operator | Jan 2025 |
| 8504 | E S P Developmne | | Oil Operator | Oct 1993 |
| 8505 | E Texas Production MGMT Co Inc | | Oil & Gas Operator | Oct 1996 |
| 8506 | E W D Oil | Winters, TX 79567 | Oil & Gas Operator | Jun 2026 |
| 8507 | E&B Natural Resources MGT Corp | Bakersfield, CA 93308 | Oil & Gas Operator | Aug 2017 |
| 8508 | E&E Oil LLC | Canton, KS 67428 | Oil Operator | Feb 2026 |
| 8509 | E-Cor, Inc. | Austin, TX 78734 | Gas Operator | Feb 1999 |
| 8510 | E-L Gas Co., LTD. | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2001 |
| 8511 | E-P Oil Co. Inc. | Luling, TX 78648 | Oil & Gas Operator | Jun 2026 |
| 8512 | E-Z Mart Stores, Inc. | | Oil Operator | Jul 2004 |
| 8513 | E-Z Serve Of Ca Inc. | | Oil Operator | Dec 1989 |
| 8514 | E. & H. Oil Company | Woodson, TX 76491 | Oil & Gas Operator | May 1998 |
| 8515 | E. & S. Drilling Company | | Oil & Gas Operator | Feb 1995 |
| 8516 | E. A. Courtney | | Oil & Gas Operator | Oct 1978 |
| 8517 | E. B. Germany & Sons LLC | | Oil & Gas Operator | Dec 2011 |
| 8518 | E. C. Green | | Gas Operator | Dec 1989 |
| 8519 | E. Conway Butts, Inc. | | Oil & Gas Operator | Apr 1991 |
| 8520 | E. G. Williamson, Jr. | | Oil Operator | Jan 1993 |
| 8521 | E. L. Cox And Stanrich Oil Co. | | Oil & Gas Operator | Jul 1981 |
| 8522 | E. L. Daniels Drilling Contractor | | Oil Operator | Feb 2014 |
| 8523 | E. L. Larry | | Oil & Gas Operator | Mar 1989 |
| 8524 | E. M. Self | | Oil Operator | Feb 1981 |
| 8525 | E. P. Alexander | | Oil Operator | Jan 1984 |
| 8526 | E. P. Alexander, Et Al | | Oil Operator | Jan 1984 |
| 8527 | E. T. Oil Company | Luling, TX 78648 | Oil & Gas Operator | Jun 2026 |
| 8528 | E. T. S. Enterprises, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Jul 1996 |
| 8529 | E.A.T.E. Operating | Natalia, TX 78059 | Oil & Gas Operator | Jun 2026 |
| 8530 | E.C. Hindman Oil And Gas | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2026 |
| 8531 | E.C. Production, L.L.C. | Rosenberg, TX 77471 | Oil & Gas Operator | Jun 2026 |
| 8532 | E.G. Operating | Dallas, TX 75206 | Oil & Gas Operator | Mar 2008 |
| 8533 | E.G.L. Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 8534 | E/T Petroleum Co. | Big Lake, TX 76932 | Oil & Gas Operator | Aug 2014 |
| 8535 | E2 Operating LLC | Tulsa, OK 74135 | Oil & Gas Operator | Jun 2026 |
| 8536 | E4 Production LLC | Comanche, OK 73529 | Oil Operator | Apr 2026 |
| 8537 | Ea Petroleum Inc | Norman, OK 73072-4147 | Oil & Gas Operator | May 2006 |
| 8538 | Eaa Operating, LLC | Perryton, TX 79070 | Oil & Gas Operator | Jun 2026 |
| 8539 | Eado Production, Inc. | Kermit, TX 79745 | Oil & Gas Operator | Aug 2012 |
| 8540 | Eads Operating C | | Oil Operator | Jun 1990 |
| 8541 | Eads Operating Company | | Oil & Gas Operator | Mar 1991 |
| 8542 | Eager Oil Company | Stanhope, NJ 07874-0577 | Oil Operator | Jun 2014 |
| 8543 | Eagle Capital Partners, LLC | Eunice, NM 88231 | Oil & Gas Operator | Jun 2026 |
| 8544 | Eagle Creek Colony | Galata, MT 59444 | Oil & Gas Operator | Mar 2026 |
| 8545 | Eagle Creek Corporation | Andover, KS 67002 | Oil & Gas Operator | Feb 2026 |
| 8546 | Eagle Creek Resources, LLC | Sewickley, PA 15143 | Oil & Gas Operator | Dec 2025 |
| 8547 | Eagle Energy | Midland, TX 79710 | Oil & Gas Operator | Aug 1994 |
| 8548 | Eagle Energy Acquisitions LP | Houston, TX 77002 | Oil & Gas Operator | Aug 2014 |
| 8549 | Eagle Energy Development Co | La Porte, TX 77571 | Oil & Gas Operator | Dec 2024 |
| 8550 | Eagle Energy Production LLC | Tulsa, OK 74136-1935 | Oil & Gas Operator | Mar 2020 |
| 8551 | Eagle Energy Resources, LLC | La Porte, TX 77571 | Oil & Gas Operator | Jun 2026 |
| 8552 | Eagle Energy, Inc. | Moreland, KS 67650 | Oil & Gas Operator | Dec 2021 |
| 8553 | Eagle Expl Co/Johnson J | Bolivar, OH 44612 | Oil & Gas Operator | Dec 1989 |
| 8554 | Eagle Exploratio | | Oil & Gas Operator | Oct 1991 |
| 8555 | Eagle Exploration Co., Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Dec 2019 |
| 8556 | Eagle Exploration Production LLC | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2026 |
| 8557 | Eagle Ford Hunter Resources,Inc. | Houston, TX 77024 | Oil & Gas Operator | Apr 2013 |
| 8558 | Eagle Ford Oil Co., Inc. | Houston, TX 77057 | Oil & Gas Operator | Jun 2026 |
| 8559 | Eagle Hydrocarbons (Texas) Inc. | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 8560 | Eagle Hydrocarbons Inc. | Houston, TX 77079 | Oil & Gas Operator | Jun 2020 |
| 8561 | Eagle Line Corp | | Oil Operator | Dec 2015 |
| 8562 | Eagle Minerals & Oil Prop Inc | Tulsa, OK 74119 | Oil & Gas Operator | Jan 2002 |
| 8563 | Eagle Minerals Inc | Tulsa, OK 74119 | Oil Operator | Jun 1998 |
| 8564 | Eagle Mountain Energy | Columbus, OH 43214 | Oil & Gas Operator | Dec 2002 |
| 8565 | Eagle Natural Resources, LLC | Eunice, NM 88231 | Oil Operator | Jun 2026 |
| 8566 | Eagle Oil & Gas Co. | Dallas, TX 75225 | Oil & Gas Operator | Jun 2026 |
| 8567 | Eagle Oil & Gas LLC (Dba Eagle Oil & Gas Co.) | | Oil & Gas Operator | Dec 2021 |
| 8568 | Eagle Oil & Gas Properties Inc | Pleasant Prarie, WI 53158-4719 | Oil & Gas Operator | Jan 2016 |
| 8569 | Eagle Oil Compan | | Oil Operator | Jul 1990 |
| 8570 | Eagle Oil Management Co., LLC | | Oil & Gas Operator | Jan 2023 |
| 8571 | Eagle Oil Management, LLC | Shreveport, LA 71106 | Oil & Gas Operator | Jun 2026 |
| 8572 | Eagle Oil, LLC | Moline, KS 67353 | Oil Operator | Oct 2016 |
| 8573 | Eagle Operating | Midland, TX 79707 | Oil & Gas Operator | May 2013 |
| 8574 | Eagle Operating Company | Tulsa, OK 74146-5730 | Oil & Gas Operator | Aug 2020 |
| 8575 | Eagle Operating Inc. | Minot, ND 58701 | Oil & Gas Operator | Apr 2026 |
| 8576 | Eagle Petroleum | | Oil & Gas Operator | Nov 1995 |
| 8577 | Eagle Petroleum Corporation | Holliday, TX 76366 | Oil & Gas Operator | Oct 2005 |
| 8578 | Eagle Petroleum, Inc. | Ellinwood, KS 67526 | Oil Operator | Feb 2026 |
| 8579 | Eagle Production, Inc. | Abilene, TX 79605 | Oil & Gas Operator | Jun 2026 |
| 8580 | Eagle Resources | | Oil & Gas Operator | Mar 1987 |
| 8581 | Eagle Resources Corp | Cranberry TWP, PA 16066-0791 | Oil & Gas Operator | Dec 2012 |
| 8582 | Eagle Resources Inc | Claremore, OK 74019-5398 | Oil & Gas Operator | May 2013 |
| 8583 | Eagle Resources LP Dba Ted Hoskinson | Roswell, NM 882023900 | Oil & Gas Operator | Dec 2008 |
| 8584 | Eagle River Ener | | Oil Operator | Dec 1996 |
| 8585 | Eagle River Energy Corporation | Broken Arrow, OK 74011 | Oil & Gas Operator | Mar 2026 |
| 8586 | Eagle Road Oil LLC | Tulsa, OK 74103-3312 | Oil & Gas Operator | Apr 2026 |
| 8587 | Eagle Rock Mid-Continent Op, LLC | Houston, TX 77252 | Oil & Gas Operator | Sep 2015 |
| 8588 | Eagle Rock Mid-Continent Operating LLC | Tulsa, OK 74103-3703 | Oil & Gas Operator | Mar 2026 |
| 8589 | Eagle Rock Operating Company,LLC | Houston, TX 77252 | Oil & Gas Operator | Oct 2015 |
| 8590 | Eagle Valley Development LLC | Austin, TX 78738 | Oil & Gas Operator | Oct 2023 |
| 8591 | Eagle Well Service, Inc | Salyersville, KY 41465 | Oil & Gas Operator | Dec 2024 |
| 8592 | Eagleridge Operating, LLC | Dallas, TX 75219 | Oil & Gas Operator | Jun 2026 |
| 8593 | Eakin Brothers | Pampa, TX 79065 | Gas Operator | Jun 2026 |
| 8594 | Eakin Exploration Inc | Tulsa, OK 74136 | Oil & Gas Operator | Jun 2016 |
| 8595 | Eakin J L | Bartlesville, OK 74136 | Oil & Gas Operator | Feb 2020 |
| 8596 | Eana Resources | | Gas Operator | Dec 2024 |
| 8597 | Earco Oil Operations, Inc. | McPherson, KS 67460 | Oil Operator | Mar 1999 |
| 8598 | Earl Dyess | | Oil & Gas Operator | Jul 1990 |
| 8599 | Earl Oil Inc | Stillwater, OK 74074-1079 | Oil & Gas Operator | Mar 2026 |
| 8600 | Earl Schwartz Co. | | Oil & Gas Operator | Oct 1989 |