| 18601 | Merkaz Drilling, LLC | Dallas, TX 75229 | Oil Operator | Jul 2026 |
| 18602 | Merkin LLC | Austin, TX 78737 | Oil Operator | Jul 2026 |
| 18603 | Merl Wiggins Et Al | | Oil & Gas Operator | Sep 1996 |
| 18604 | Merlin J Verret | | Gas Operator | Jun 1986 |
| 18605 | Merlon Texas, Inc. | Houston, TX 77056 | Oil Operator | Jun 2013 |
| 18606 | Mermac Operating Company Inc | Norman, OK 73072 | Oil & Gas Operator | Mar 2015 |
| 18607 | Meroda Resources LLC | Mustang, OK 73064-9408 | Oil & Gas Operator | Apr 2000 |
| 18608 | Merrick Oil & Gas | | Oil & Gas Operator | Jan 2026 |
| 18609 | Merrick Ward S Inc | Ardmore, OK 73402 | Oil & Gas Operator | Feb 2001 |
| 18610 | Merrico Resource | | Oil Operator | Dec 1996 |
| 18611 | Merrico Resources | | Oil Operator | Mar 1992 |
| 18612 | Merrico Resources, Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Mar 2008 |
| 18613 | Merrill Natural Res Inc | Woodsfield, OH 43793 | Oil & Gas Operator | Dec 1985 |
| 18614 | Merrill Operating, LLC | Snyder, TX 79550 | Oil Operator | Apr 2016 |
| 18615 | Merrill, Brian G. | Depew, NY 14043 | Gas Operator | Dec 2025 |
| 18616 | Merrimac Energy Corp. | Dallas, TX 75206 | Oil & Gas Operator | Aug 1999 |
| 18617 | Merrion & Bayless | Farmington, NM 87401 | Oil & Gas Operator | May 1982 |
| 18618 | Merrion Oil & Gas Corp | Farmington, NM 87401 | Oil & Gas Operator | May 2026 |
| 18619 | Merritt Oil Comp | | Oil Operator | Jan 1990 |
| 18620 | Merritt Operating, Inc. | Mineola, TX 75773 | Oil & Gas Operator | Jul 2026 |
| 18621 | Merritt, William Kevin | Dallas, TX 75225 | Oil & Gas Operator | Dec 1994 |
| 18622 | Mert Development Inc | | Oil & Gas Operator | Dec 2021 |
| 18623 | Merta, Mike | Alice, TX 78333 | Oil & Gas Operator | Aug 2005 |
| 18624 | Mertz Energy LLC | Houston, TX 77098 | Oil & Gas Operator | Jan 2025 |
| 18625 | Mervin Troyer | Union City, PA 16438-8510 | Gas Operator | Dec 2008 |
| 18626 | Mervine Oil Company Inc | Blackwell, OK 74631-0514 | Oil Operator | Jan 2013 |
| 18627 | Merzbacher, George F. Jr. | Robstown, TX 78380 | Oil & Gas Operator | May 1994 |
| 18628 | Mesa Chica Corp. | San Antonio, TX 78278 | Oil & Gas Operator | May 2018 |
| 18629 | Mesa Energy, Inc. | Austin, TX 78755 | Oil & Gas Operator | Dec 2013 |
| 18630 | Mesa Exploration Company Inc | Shawnee, OK 74801 | Oil & Gas Operator | Apr 2026 |
| 18631 | Mesa Gulf Coast LLC | | Oil & Gas Operator | Dec 2020 |
| 18632 | Mesa Operating Co. | Irving, TX 75039 | Oil & Gas Operator | Aug 1997 |
| 18633 | Mesa Operating L | | Oil & Gas Operator | Dec 1996 |
| 18634 | Mesa Operating LP | Irving, TX 75039-3746 | Oil & Gas Operator | Oct 2010 |
| 18635 | Mesa Operating LTD Partnership | Amarillo, TX 79189 | Oil & Gas Operator | May 1994 |
| 18636 | Mesa Petroleum C | | Oil & Gas Operator | Dec 1986 |
| 18637 | Mesa Petroleum Co. | | Oil & Gas Operator | Aug 1985 |
| 18638 | Mesa Production Company | Amarillo, TX 79189 | Oil & Gas Operator | Dec 1983 |
| 18639 | Mesa Ridge Holdings LLC | Abilene, TX 79603 | Oil Operator | Jul 2026 |
| 18640 | Mesa VIsta Operating, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Jul 2026 |
| 18641 | Mescalero Energy, Inc. | San Antonio, TX 78231 | Oil & Gas Operator | Aug 2003 |
| 18642 | Mescko Operating & Prod | Seville, OH 44273 | Oil & Gas Operator | Feb 2026 |
| 18643 | Mescko Producing & Operating Co. Inc. | Burbank, OH 44214 | Oil & Gas Operator | Dec 2025 |
| 18644 | Mesh LTD | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2025 |
| 18645 | Mesquite Land & Minerals Co. | Albany, TX 76430 | Oil Operator | Jul 2026 |
| 18646 | Mesquite Oil & Gas Production | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2026 |
| 18647 | Mesquite SWD Inc | Carlsbad, NM 88221 | Oil & Gas Operator | Jul 2026 |
| 18648 | Messenger Petroleum, Inc. | Kingman, KS 67068 | Oil & Gas Operator | Mar 2026 |
| 18649 | Messer Helium Cliffside LLC | Bridgewater, NJ 08807 | Gas Operator | Jul 2026 |
| 18650 | Messer LLC | | Gas Operator | May 2026 |
| 18651 | Messman Corporation | Wichita, KS 67208 | Oil & Gas Operator | Mar 2026 |
| 18652 | Messman-Rinehart | | Oil & Gas Operator | Mar 1991 |
| 18653 | Messy Oil And Gas, LLC | Garwood, TX 77442 | Oil & Gas Operator | Jul 2026 |
| 18654 | Mestena Operating, L.L.C. | Corpus Christ, TX 78401 | Oil & Gas Operator | Aug 2015 |
| 18655 | Mestena Operating, LTD. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Jun 2009 |
| 18656 | Mestena, Inc. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Nov 2001 |
| 18657 | Metairie Energy Company, Inc. | | Oil & Gas Operator | Nov 2019 |
| 18658 | Metano Energy III, LP | Tulsa, OK 74121 | Oil & Gas Operator | Jul 2026 |
| 18659 | Metano Energy, LP | San Antonio, TX 78216 | Oil & Gas Operator | Aug 2008 |
| 18660 | Metco Oil Corporation | Seguin, TX 78155 | Oil Operator | Apr 2016 |
| 18661 | Meteor Developments Inc | Denver, CO BAD ADDR | Oil & Gas Operator | Dec 1995 |
| 18662 | Meter, Erin L. & William J. | Dansville, NY 14437 | Gas Operator | Dec 2025 |
| 18663 | Metgas Co, A Partnership | | Oil & Gas Operator | Dec 2016 |
| 18664 | Methane Productions Inc | Recluse, WY 82725 | Oil & Gas Operator | Apr 2007 |
| 18665 | Metro Energy Group, Inc. | Bossier City, LA 71112 | Oil & Gas Operator | May 2013 |
| 18666 | Metro Energy LTD | Scottsdale, AZ 85254 | Oil Operator | Aug 2000 |
| 18667 | Metro Energy, Inc. | Gladstone, MO 64118 | Oil Operator | May 1997 |
| 18668 | Metro Oil Compan | | Oil Operator | Jan 1991 |
| 18669 | Metroplex Barnett Shale LLC | Houston, TX 77001 | Gas Operator | Sep 2008 |
| 18670 | Metropolitan Resources Corp | Tulsa, OK 74169-1734 | Oil & Gas Operator | Mar 2015 |
| 18671 | Mettz,Carmody & Foster Oil Co | | Oil Operator | May 1990 |
| 18672 | Metzger Ed W & Sue | Junction City, OH 43748 | Oil Operator | Dec 2025 |
| 18673 | Metzger Francis A | Junction City, OH 43748 | Oil & Gas Operator | Dec 1999 |
| 18674 | Metzgers Bob | Junction City, OH 43748 | Oil & Gas Operator | Dec 2025 |
| 18675 | Metzner, Norma J. Estate | Wichita Falls, TX 76307 | Oil & Gas Operator | Oct 1998 |
| 18676 | Mewbourne Marketing, Inc. | | Oil & Gas Operator | Mar 2013 |
| 18677 | Mewbourne Oil Company | Tyler, TX 75711 | Oil & Gas Operator | Jul 2026 |
| 18678 | Mexco Energy Corporation | Midland, TX 79702 | Oil & Gas Operator | Feb 2020 |
| 18679 | Mextex Operating Company | Austin, TX 78734 | Oil & Gas Operator | Jul 2026 |
| 18680 | Meyer Douglas P | Longmont, CO 80501 | Oil & Gas Operator | Aug 2006 |
| 18681 | Meyer Oil Co., Inc. | Skellytown, TX 79080 | Oil & Gas Operator | Apr 2026 |
| 18682 | Meyer Richard C Inc | MT Gilead, OH 43338 | Oil & Gas Operator | Dec 1999 |
| 18683 | Meyer, David M. | South Wales, NY 14139 | Gas Operator | Dec 2025 |
| 18684 | Meyer, Norbert | Conway Springs, KS 67031 | Oil Operator | Aug 1994 |
| 18685 | Meyer, Ruskin H. Et Al | | Oil Operator | Oct 1980 |
| 18686 | Meyer, Theodore J. | Conway Springs, KS 67031 | Oil Operator | Mar 2026 |
| 18687 | Meyerhoff & Cox Inc | Tulsa, OK 74135-7830 | Oil Operator | Aug 1993 |
| 18688 | Meyers Marsha L | Danville, OH 43014 | Oil & Gas Operator | Dec 2007 |
| 18689 | Meyers-Lasher, Inc. | | Oil & Gas Operator | Mar 1999 |
| 18690 | MFC Drilling Inc | Coshocton, OH 43812 | Oil & Gas Operator | Dec 2025 |
| 18691 | MFP Petroleum LP | Oklahoma City, OK 73142-3017 | Gas Operator | Apr 2026 |
| 18692 | MFP Petroleum LTD. Partnership | Oklahoma City, OK 73142 | Oil & Gas Operator | Nov 2017 |
| 18693 | Mga Energy Inc | Corning, OH 43730 | Oil & Gas Operator | Dec 2025 |
| 18694 | Mge Resources, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Mar 2026 |
| 18695 | MGF Oil Corporation | Tulsa, OK 74121 | Oil & Gas Operator | Jun 1998 |
| 18696 | MGM Oil & Gas Company | Midland, TX 79702 | Oil & Gas Operator | Jul 2026 |
| 18697 | MGM Oil & Gas Inc. | Ballinger, TX 76821 | Oil & Gas Operator | Jul 2026 |
| 18698 | MGM Well Service, Inc. | Corpus Chrsti, TX 78427 | Oil & Gas Operator | Oct 2004 |
| 18699 | MH Oilfield Service LLC | Amesville, OH 45711 | Oil & Gas Operator | Dec 2023 |
| 18700 | MHM Oil Co. | Dallas, TX 75240 | Oil & Gas Operator | Oct 2002 |