| 19501 | MTG Operating Inc | Ridgeland, MS 39158 | Gas Operator | Apr 2011 |
| 19502 | MTM Petroleum, Inc. | Kingman, KS 67068 | Oil & Gas Operator | Dec 2025 |
| 19503 | MTN Energy | Aleppo, PA 15310 | Oil & Gas Operator | Feb 2026 |
| 19504 | MTN V Oil & Gas Inc | Indiana, PA 15701-8914 | Oil & Gas Operator | Feb 2026 |
| 19505 | Mto Oil Company | Okay, OK 74446-0354 | Oil Operator | Jul 2019 |
| 19506 | Muckleroy Gas | San Antonio, TX 78247 | Gas Operator | Apr 2026 |
| 19507 | Mud Creek Operating, LLC | Tyler, TX 75702 | Oil & Gas Operator | Apr 2026 |
| 19508 | Mud Operations Inc | Ames, OK 73718-9501 | Oil & Gas Operator | Feb 2026 |
| 19509 | Mud River Oil & Gas, LLC | Rochester, KY 42273 | Oil Operator | Dec 2023 |
| 19510 | Mudslinger Oil, L.L.C. | Abilene, TX 79601 | Oil Operator | Apr 2026 |
| 19511 | Muegge Don E | Lamont, OK 74643-5010 | Oil & Gas Operator | Dec 1996 |
| 19512 | Muegge, Clay A. | Lamont, OK 74643 | Oil Operator | Aug 1991 |
| 19513 | Mueggenborg Derrick R Dba DRM Oil & Gas | Yale, OK 74085 | Oil Operator | Jan 2026 |
| 19514 | Mueller Engineering Corp. | Corpus Chrsti, TX 78476 | Oil & Gas Operator | Feb 2002 |
| 19515 | Mueller Exploration, Inc. | Portland, TX 78374 | Oil & Gas Operator | Apr 2026 |
| 19516 | Mueller Fred W | | Oil & Gas Operator | Dec 1995 |
| 19517 | Mueller Oil | | Oil Operator | Dec 2025 |
| 19518 | Mueller Thomas C | Fort Smith, AR 72913 | Gas Operator | Aug 2008 |
| 19519 | Mueller Thomas C LTD | Oklahoma City, OK 73102-5683 | Gas Operator | Aug 2008 |
| 19520 | Muenster Drilling Co. Inc. | Muenster, TX 76252 | Oil & Gas Operator | Apr 2026 |
| 19521 | Muffoletto, Michael R. | Brant, NY 14027 | Gas Operator | Dec 2024 |
| 19522 | Mugg, John D. Jr. | San Antonio, TX 78216 | Oil & Gas Operator | Nov 1997 |
| 19523 | Muirfield Exploration, LTD. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2026 |
| 19524 | Muirfield Resources Company | Tulsa, OK 74101-3166 | Oil & Gas Operator | Jun 2024 |
| 19525 | Muldowney Development, Inc. | Dunkirk, NY 14048 | Gas Operator | Dec 2024 |
| 19526 | Mule Kick Operating LLC | Midland, TX 79701 | Oil & Gas Operator | Apr 2026 |
| 19527 | Muleshoe Crude, LP | Midland, TX 79701 | Oil & Gas Operator | Apr 2026 |
| 19528 | Mull Drilling Company | Wichita, KS 67206 | Oil & Gas Operator | Jan 2026 |
| 19529 | Mullen Exploration Inc | | Oil & Gas Operator | Dec 2002 |
| 19530 | Mullen Resources LLC | Reedy, WV 25270 | Oil & Gas Operator | Dec 2021 |
| 19531 | Mullen William Company | Edmond, OK 73083-1372 | Oil & Gas Operator | May 1999 |
| 19532 | Mullen-Hathorn-Bass | | Oil & Gas Operator | Mar 1985 |
| 19533 | Muller Oil & Gas | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2026 |
| 19534 | Mullin, W. B. | Graham, TX 76450 | Oil & Gas Operator | Sep 1998 |
| 19535 | Mullins & Prichard | | Oil & Gas Operator | May 1992 |
| 19536 | Mullins Jimmy R Dba Southcreek Petroleum Co | Dibble, OK 73031 | Oil & Gas Operator | Jan 2021 |
| 19537 | Mullins Well Service | MT Gilead, OH 43338 | Oil & Gas Operator | Dec 2018 |
| 19538 | Mullins, John S | | Oil Operator | Nov 2014 |
| 19539 | Mullins, Manuel | Olney, TX 76374 | Oil & Gas Operator | Apr 2026 |
| 19540 | Mulloy Operating, Inc. | Midland, TX 79701 | Oil & Gas Operator | Apr 2026 |
| 19541 | Mulloy, J. W. Associates, Inc. | Midland, TX 79701 | Oil & Gas Operator | Jan 2003 |
| 19542 | Multipay Energy, Inc. | Austin, TX 78749 | Oil Operator | Apr 2026 |
| 19543 | Multiplex Resources, Inc. | Baytown, TX 77521 | Oil Operator | Dec 2009 |
| 19544 | Mumford, Catherine | Waterloo, NY 13165 | Gas Operator | Dec 2024 |
| 19545 | Mumford-Gabel, Jennifer And Kyle Gabel | Lawtons, NY 14091 | Gas Operator | Dec 2024 |
| 19546 | Mumma Oil Production Co., Inc. | Allentown, PA 18109-0000 | Oil & Gas Operator | Dec 2019 |
| 19547 | Munday Operating Co., L.L.C. | | Oil & Gas Operator | May 2007 |
| 19548 | Mundell F E | Watertown, SD 57201 | Oil & Gas Operator | Aug 1994 |
| 19549 | Munn, W. H. Operating Company | Midland, TX 79702 | Oil & Gas Operator | Sep 2002 |
| 19550 | Munoco Co. L.C. | | Oil & Gas Operator | Jun 2003 |
| 19551 | Munoco Company | El Dorado, AR 71730 | Oil & Gas Operator | Jul 2021 |
| 19552 | Munoz Farms Operating Co., LLC | Carrizo SPGS, TX 78834 | Oil & Gas Operator | Apr 2026 |
| 19553 | Munoz, Magdaleno C. | Borger, TX 79007 | Oil Operator | Apr 2026 |
| 19554 | Munson Dave Company | Dallas, TX 75201-3591 | Oil Operator | Aug 1996 |
| 19555 | Munson Operating, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Apr 2026 |
| 19556 | Munson, Charles C. | Dallas, TX 75201 | Oil & Gas Operator | Apr 2002 |
| 19557 | Munson, David M. | Dallas, TX 75201 | Oil & Gas Operator | Mar 2015 |
| 19558 | Munson, David M. Inc. | Dallas, TX 75251 | Oil & Gas Operator | Apr 2026 |
| 19559 | Munson, E. P., Jr. | Fort Worth, TX 76121 | Oil & Gas Operator | Oct 1995 |
| 19560 | Muras Energy Inc | Edmond, OK 73013 | Oil & Gas Operator | Jan 2026 |
| 19561 | Murchison Oil & | | Oil Operator | Mar 1988 |
| 19562 | Murchison Oil & Gas Inc | Plano, TX 75024 | Oil & Gas Operator | Aug 2020 |
| 19563 | Murchison Oil And Gas, LLC | Plano, TX 75024 | Oil & Gas Operator | Feb 2025 |
| 19564 | Murchison, G. B. Trust | Dallas, TX 75283 | Oil & Gas Operator | Sep 1994 |
| 19565 | Murdoch Oil Co Inc | Bluff, UT 84512 | Oil & Gas Operator | Jun 2010 |
| 19566 | Murex Petroleum Corporation | Humble, TX 77347 | Oil & Gas Operator | Feb 2026 |
| 19567 | Murexco Petroleum Inc | Dallas, TX 75251 | Oil & Gas Operator | Oct 1996 |
| 19568 | Murfin Drilling | | Oil & Gas Operator | Jul 1997 |
| 19569 | Murfin Drilling Company, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Feb 2026 |
| 19570 | Murjo Oil & Royalty Company | Fort Worth, TX 76121 | Oil & Gas Operator | Dec 2019 |
| 19571 | Murk, James M. | Wheaton, IL 60189 | Gas Operator | Jan 1999 |
| 19572 | Muroz International Group Inc | Houston, TX 77056 | Oil Operator | Apr 2026 |
| 19573 | Murphree Brothers Production | Monahans, TX 79756 | Oil & Gas Operator | Apr 2026 |
| 19574 | Murphree Production | Monahans, TX 79756 | Oil & Gas Operator | Jul 2014 |
| 19575 | Murphrey Oil Company, Inc. | | Oil Operator | Jan 2025 |
| 19576 | Murphy & Associates, Inc. | Snyder, TX 79549 | Oil & Gas Operator | Oct 1996 |
| 19577 | Murphy - Sun | | Oil & Gas Operator | May 1989 |
| 19578 | Murphy D V | | Oil Operator | Dec 1989 |
| 19579 | Murphy Energy Services, LP | Saratoga, TX 77585 | Oil Operator | Dec 2018 |
| 19580 | Murphy Exp & Prod Co.-USA | | Oil & Gas Operator | May 2014 |
| 19581 | Murphy Expl. & Prod. Co. - USA | Houston, TX 77024 | Oil & Gas Operator | Apr 2026 |
| 19582 | Murphy Exploration & Prod. Co. | Houston, TX 77094 | Oil & Gas Operator | Jun 2011 |
| 19583 | Murphy Exploration & Production | Houston, TX 77024 | Oil Operator | Jan 2025 |
| 19584 | Murphy Helen Colpitt Trust | Collinsville, OK 74021-0128 | Oil & Gas Operator | May 2002 |
| 19585 | Murphy Jack L | Tulsa, OK 74104-4915 | Oil Operator | Mar 2015 |
| 19586 | Murphy Oil Company Inc | Lancaster, OH 43130 | Oil & Gas Operator | Dec 2024 |
| 19587 | Murphy Oil USA, Inc. | New Orleans, LA 70161 | Oil & Gas Operator | Jan 1993 |
| 19588 | Murphy Operating Corp | Roswell, NM 88202 | Oil & Gas Operator | Apr 1998 |
| 19589 | Murphy Prod Inc | Vanderbilt, PA 15486-1001 | Oil & Gas Operator | Dec 2025 |
| 19590 | Murphy Production Co. (Inc.) | | Oil & Gas Operator | Apr 1991 |
| 19591 | Murphy Production Corp. | Austin, TX 78731 | Oil & Gas Operator | Sep 2013 |
| 19592 | Murphy Sheldon L & Loretta | Newcastle, WY 82701 | Oil & Gas Operator | Jan 2026 |
| 19593 | Murphy, Bill W. Operating Co,Inc | Richardson, TX 75080 | Oil & Gas Operator | Apr 2026 |
| 19594 | Murphy, Charles H. | Altoona, KS 66710 | Oil Operator | Jul 2022 |
| 19595 | Murphy, Douglas S. | Sherman, NY 14781 | Gas Operator | Dec 2024 |
| 19596 | Murphy, Earl M. | Madison, KS 66860 | Oil Operator | Jun 1999 |
| 19597 | Murphy, K. P. Oil Operator | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2026 |
| 19598 | Murray Hill Energy, Inc. | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2017 |
| 19599 | Murray J. Evans | | Oil Operator | Mar 1985 |
| 19600 | Murray Oil And Gas LLC | Greensburg, KS 67054 | Oil & Gas Operator | Dec 2025 |