| 8501 | Dusty Drilling & Producing Corp | New Lexington, OH 43764-1552 | Oil & Gas Operator | Dec 2005 |
| 8502 | Dutch Ridge Gas Ventures, LLC | Charleston, WV 25339 | Oil & Gas Operator | Dec 2021 |
| 8503 | Dutton Bill J Oi | | Oil & Gas Operator | Oct 1992 |
| 8504 | Duty Oil & Gas Prod Co | Akron, OH 44306 | Oil & Gas Operator | Dec 1997 |
| 8505 | Duval Gas Gathering Corporation | Austin, TX 78711 | Oil & Gas Operator | May 2026 |
| 8506 | Dvi | | Oil Operator | Dec 2008 |
| 8507 | Dvy Energy LLC | Hadley, PA 16130-2320 | Oil & Gas Operator | Dec 2025 |
| 8508 | Dwarf Oil Company | | Oil & Gas Operator | Mar 2025 |
| 8509 | Dwayne'S Engineering | | Oil Operator | Dec 2025 |
| 8510 | Dwight A Tipton | Houston, TX 77208 | Oil & Gas Operator | Apr 2025 |
| 8511 | Dwight Tipton Et Al | Hobbs, NM 88240 | Oil & Gas Operator | Nov 2002 |
| 8512 | DWJS Inc | Oklahoma City, OK 73159 | Oil & Gas Operator | Sep 2024 |
| 8513 | DWP Oil & Gas | Wichita Falls, TX 76309 | Oil & Gas Operator | May 2026 |
| 8514 | DWR Oil Company | Merkel, TX 79536 | Oil & Gas Operator | Aug 2025 |
| 8515 | Dyad Petroleum Company | Midland, TX 79710 | Oil & Gas Operator | Sep 2021 |
| 8516 | Dyco Petroleum Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Mar 2015 |
| 8517 | Dye Walter M | Woodsfield, OH 43793 | Oil & Gas Operator | Dec 2022 |
| 8518 | Dye, Jennifer J. | South Dayton, NY 14138 | Gas Operator | Dec 2024 |
| 8519 | Dyer Dale E Dba The Loving Company | Tulsa, OK 74107 | Oil & Gas Operator | Jan 2026 |
| 8520 | Dyer J G | | Oil & Gas Operator | May 1985 |
| 8521 | Dyer, Charles Wilbur | Longton, KS 67352 | Oil Operator | Jul 2025 |
| 8522 | Dyersdale Energy, L.P. | Kilgore, TX 75663 | Oil & Gas Operator | May 2026 |
| 8523 | Dyersdale Production Co, Inc. | Houston, TX 77019 | Oil & Gas Operator | May 2026 |
| 8524 | Dykes Oil Co. | | Oil Operator | Dec 2001 |
| 8525 | Dykstra Tile Co LLC | | Oil Operator | Apr 2002 |
| 8526 | Dym Energy, Inc. | Celina, TX 75009 | Oil & Gas Operator | Apr 2018 |
| 8527 | Dynaco, Incorporated | | Oil & Gas Operator | Dec 1980 |
| 8528 | Dynamic Development Inc | | Oil & Gas Operator | Feb 2026 |
| 8529 | Dynamic Exploration PTRS, LLC | | Oil & Gas Operator | Nov 2024 |
| 8530 | Dynamic Exploration, Inc. | | Oil & Gas Operator | Oct 2003 |
| 8531 | Dynamic Offshore Res. NS, LLC | Houston, TX 77010 | Oil & Gas Operator | May 2010 |
| 8532 | Dynamic Offshore Resources, LLC | Houston, TX 77042 | Oil & Gas Operator | May 2026 |
| 8533 | Dynamic Petroleum Res., Inc. | Houston, TX 77068 | Oil & Gas Operator | Jul 1994 |
| 8534 | Dynamic Production, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | May 2026 |
| 8535 | Dyne Exploration Company | Plano, TX 75093-6512 | Oil & Gas Operator | Apr 2020 |
| 8536 | Dyne Oil & Gas,Inc. | Borger, TX 79008 | Oil & Gas Operator | Dec 2017 |
| 8537 | Dyno Energy LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Feb 2026 |
| 8538 | Dyson Energy Operating, LLC | Bryan, TX 77802 | Oil & Gas Operator | Jun 2018 |
| 8539 | Dzurik Interests, Inc. | | Oil & Gas Operator | Dec 2024 |
| 8540 | E & B Equipment | Liberty, TX 77575 | Oil & Gas Operator | Feb 2010 |
| 8541 | E & B Natural Resources Management | Guilderland Centek, NY 12085 | Oil & Gas Operator | Feb 2026 |
| 8542 | E & B Natural Resources Management Corporation | Hays, KS 67601 | Oil & Gas Operator | Dec 2025 |
| 8543 | E & E Construction Company | Wichita Falls, TX 76308 | Oil Operator | May 2026 |
| 8544 | E & E Drilling Co., Inc. | Wichita Falls, TX 76308 | Oil Operator | May 2026 |
| 8545 | E & E Enterprises | Enid, OK 73703-1420 | Oil & Gas Operator | Nov 2014 |
| 8546 | E & E Oil | | Oil Operator | Dec 2019 |
| 8547 | E & E Production Company, Inc. | | Oil & Gas Operator | Dec 2004 |
| 8548 | E & R Oil | San Angelo, TX 76906 | Oil & Gas Operator | May 2026 |
| 8549 | E & S Operating Company | Caddo, TX 76429 | Oil & Gas Operator | Feb 2018 |
| 8550 | E & S Production Corp. | | Oil & Gas Operator | Dec 1988 |
| 8551 | E & S Resources LLC | Crescent, OK 73028 | Oil & Gas Operator | Oct 2025 |
| 8552 | E & T Limited Liability Co. | | Oil & Gas Operator | Dec 2025 |
| 8553 | E & W Oil, Inc. | Seguin, TX 78155 | Oil & Gas Operator | May 2026 |
| 8554 | E & W Production | Olney, TX 76374 | Oil & Gas Operator | Aug 2018 |
| 8555 | E D Markham | | Gas Operator | Nov 1978 |
| 8556 | E G Operating Co | Austin, TX 78746 | Oil & Gas Operator | Jun 1997 |
| 8557 | E I C Inc | Coshocton, OH 43812 | Oil & Gas Operator | Dec 1984 |
| 8558 | E K Energy LLC | Colony, KS 66015 | Oil Operator | Dec 2025 |
| 8559 | E L Fundingsland | Littleton, CO 80160 | Oil & Gas Operator | Jun 2016 |
| 8560 | E L M Oil Company | Lockhart, TX 78644 | Oil & Gas Operator | May 2000 |
| 8561 | E Lee Mills | | Oil Operator | Aug 1987 |
| 8562 | E Lyle Johnson Inc | Oklahoma City, OK 73142 | Oil & Gas Operator | Jan 2026 |
| 8563 | E O R Petroleum | | Oil Operator | Oct 1987 |
| 8564 | E P C Oil & Gas, Inc. | Caldwell, TX 77836 | Oil & Gas Operator | May 2026 |
| 8565 | E R Operating Company | Dallas, TX 75225 | Oil & Gas Operator | Jan 2025 |
| 8566 | E S P Developmne | | Oil Operator | Oct 1993 |
| 8567 | E Texas Production MGMT Co Inc | | Oil & Gas Operator | Oct 1996 |
| 8568 | E W D Oil | Winters, TX 79567 | Oil & Gas Operator | May 2026 |
| 8569 | E&B Natural Resources MGT Corp | Bakersfield, CA 93308 | Oil & Gas Operator | Aug 2017 |
| 8570 | E&E Oil LLC | Canton, KS 67428 | Oil Operator | Dec 2025 |
| 8571 | E-Cor, Inc. | Austin, TX 78734 | Gas Operator | Feb 1999 |
| 8572 | E-L Gas Co., LTD. | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2001 |
| 8573 | E-P Oil Co. Inc. | Luling, TX 78648 | Oil & Gas Operator | May 2026 |
| 8574 | E-Z Mart Stores, Inc. | | Oil Operator | Jul 2004 |
| 8575 | E-Z Serve Of Ca Inc. | | Oil Operator | Dec 1989 |
| 8576 | E. & H. Oil Company | Woodson, TX 76491 | Oil & Gas Operator | May 1998 |
| 8577 | E. & S. Drilling Company | | Oil & Gas Operator | Feb 1995 |
| 8578 | E. A. Courtney | | Oil & Gas Operator | Oct 1978 |
| 8579 | E. B. Germany & Sons LLC | | Oil & Gas Operator | Dec 2011 |
| 8580 | E. C. Green | | Gas Operator | Dec 1989 |
| 8581 | E. Conway Butts, Inc. | | Oil & Gas Operator | Apr 1991 |
| 8582 | E. G. Williamson, Jr. | | Oil Operator | Jan 1993 |
| 8583 | E. L. Cox And Stanrich Oil Co. | | Oil & Gas Operator | Jul 1981 |
| 8584 | E. L. Daniels Drilling Contractor | | Oil Operator | Feb 2014 |
| 8585 | E. L. Larry | | Oil & Gas Operator | Mar 1989 |
| 8586 | E. M. Self | | Oil Operator | Feb 1981 |
| 8587 | E. P. Alexander | | Oil Operator | Jan 1984 |
| 8588 | E. P. Alexander, Et Al | | Oil Operator | Jan 1984 |
| 8589 | E. T. Oil Company | Luling, TX 78648 | Oil & Gas Operator | May 2026 |
| 8590 | E. T. S. Enterprises, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Jul 1996 |
| 8591 | E.A.T.E. Operating | Natalia, TX 78059 | Oil & Gas Operator | May 2026 |
| 8592 | E.C. Hindman Oil And Gas | Breckenridge, TX 76424 | Oil & Gas Operator | May 2026 |
| 8593 | E.C. Production, L.L.C. | Rosenberg, TX 77471 | Oil & Gas Operator | May 2026 |
| 8594 | E.G. Operating | Dallas, TX 75206 | Oil & Gas Operator | Mar 2008 |
| 8595 | E.G.L. Resources, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 8596 | E/T Petroleum Co. | Big Lake, TX 76932 | Oil & Gas Operator | Aug 2014 |
| 8597 | E2 Operating LLC | Tulsa, OK 74135 | Oil & Gas Operator | May 2026 |
| 8598 | E4 Production LLC | Comanche, OK 73529 | Oil Operator | Dec 2025 |
| 8599 | Ea Petroleum Inc | Norman, OK 73072-4147 | Oil & Gas Operator | May 2006 |
| 8600 | Eaa Operating, LLC | Perryton, TX 79070 | Oil & Gas Operator | May 2026 |