| 19501 | Moabb Oil Corp | | Oil & Gas Operator | Apr 1998 |
| 19502 | Mob Corp | Waynesburg, PA 15370-2036 | Gas Operator | Dec 2007 |
| 19503 | Mobay Storage Hub LLC | | Gas Operator | Oct 2008 |
| 19504 | Mobeetie Resource Dev LLC | Booker, TX 79005 | Oil & Gas Operator | Jun 2025 |
| 19505 | Mobil E&P N.A.-Pel-Tex | | Oil & Gas Operator | Dec 1993 |
| 19506 | Mobil E&P N.A.-WM Scully Et Al | | Oil & Gas Operator | Dec 1993 |
| 19507 | Mobil E&P North America Inc. | | Oil & Gas Operator | Jan 1994 |
| 19508 | Mobil Exp & Prod Us Inc | Houston, TX 77060-1991 | Oil & Gas Operator | May 2001 |
| 19509 | Mobil Expl & Producing North America Inc | | Oil & Gas Operator | Nov 1986 |
| 19510 | Mobil Explor & Prod | Cortez, CO 81321 | Oil & Gas Operator | May 2001 |
| 19511 | Mobil Oil Corpor | | Oil & Gas Operator | Dec 1996 |
| 19512 | Mobil Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Jun 2016 |
| 19513 | Mobil Oil E & P Southeast Inc | | Oil & Gas Operator | Sep 2013 |
| 19514 | Mobil Oil E&P Se Inc - Pel-Tex | | Oil & Gas Operator | Dec 2005 |
| 19515 | Mobil Oil Expl & Prod S E | | Oil & Gas Operator | Dec 1979 |
| 19516 | Mobil Oil Exploration & Producing Southeast, Inc. | | Oil & Gas Operator | Mar 2025 |
| 19517 | Mobil Oil Exploration & Production North America Inc. | | Oil & Gas Operator | Dec 1996 |
| 19518 | Mobil Petro Vac, Inc. | Duncan, OK 73533 | Oil & Gas Operator | Jun 2025 |
| 19519 | Mobil Producing Texas & New Mexico | Denver City, TX 79323 | Oil & Gas Operator | Jun 2005 |
| 19520 | Mobil Producing TX. & N.M. Inc. | Spring, TX 77389 | Oil & Gas Operator | Jun 2025 |
| 19521 | Mobile Gulf, Inc. | | Oil & Gas Operator | Aug 1985 |
| 19522 | Mobile Petrovac, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Jun 2025 |
| 19523 | Mobile Production Systems, Inc. | Austin, TX 78711 | Oil & Gas Operator | Feb 1995 |
| 19524 | Mobley & Davis | | Oil & Gas Operator | Oct 1986 |
| 19525 | Mobley & McCain | | Oil & Gas Operator | Nov 1979 |
| 19526 | Mobley & McCain, Et Al | | Oil & Gas Operator | Jul 1986 |
| 19527 | Mobley Oil Company, Inc. | | Oil & Gas Operator | Feb 1990 |
| 19528 | Mobley Valve Service, Inc. | | Oil & Gas Operator | Nov 2006 |
| 19529 | Mobpar, Inc. | Houston, TX 77219 | Oil & Gas Operator | Jun 2025 |
| 19530 | Mobreal Oil Inc | Wilmington, DE 19808 | Oil & Gas Operator | Dec 1989 |
| 19531 | Mockingbird Oil, Inc. (I) | Spring, TX 77389 | Oil & Gas Operator | Jun 2025 |
| 19532 | Moco Oil Inc | | Oil Operator | May 1984 |
| 19533 | Moco Operating Company | | Oil & Gas Operator | Mar 2002 |
| 19534 | Mode Oil & Gasdev LTD12/21/Ofb 9-98 | | Oil & Gas Operator | May 2013 |
| 19535 | Modena Operating LLC | Houston, TX 77057 | Oil & Gas Operator | Jun 2025 |
| 19536 | Modern Exploration, Inc. | Sherman, TX 75090 | Oil & Gas Operator | Jun 2025 |
| 19537 | Modus Inc. | | Oil & Gas Operator | Apr 2025 |
| 19538 | Moenning, Vernie | Electra, TX 76360 | Oil & Gas Operator | Jun 2025 |
| 19539 | Moff Oil Company | Pratt, KS 67124 | Gas Operator | Apr 1988 |
| 19540 | Moffitt W G Trust | Fort Gibson, OK 74434-4258 | Gas Operator | Nov 2019 |
| 19541 | Mogo Reagan, LLC | Cut Bank, MT 59427 | Oil & Gas Operator | Mar 2025 |
| 19542 | Mogul Energy Corp | Los Angeles, CA 90024 | Oil & Gas Operator | Jan 2001 |
| 19543 | Mogul Energy International, Inc. | Houston, TX 77042 | Oil & Gas Operator | Oct 2017 |
| 19544 | Mogul Operating LLC | St Petersburg, FL 33706 | Oil Operator | Jun 2025 |
| 19545 | Mogul Resources, LLC | Cisco, TX 76437 | Oil & Gas Operator | Jun 2025 |
| 19546 | Mohawk Operating LLC | Oklahoma City, OK 73173-8907 | Gas Operator | Feb 2004 |
| 19547 | Mohawk Petroleum | | Oil & Gas Operator | Jan 1995 |
| 19548 | Mohican Exploration, LLC | Graham, TX 76450 | Oil & Gas Operator | Oct 2024 |
| 19549 | Mohican Oil & Gas, L.L.C. | Corpus Chrsti, TX 78476 | Oil & Gas Operator | Apr 2013 |
| 19550 | Mohican Operating, L.L.C. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2021 |
| 19551 | Mohr, Steve | Maize, KS 67101 | Oil Operator | Aug 2022 |
| 19552 | Mojac Energy Corp. | Houston, TX 77056 | Oil & Gas Operator | Dec 1997 |
| 19553 | Mojave Operating Company | Midland, TX 79702 | Oil & Gas Operator | Nov 2002 |
| 19554 | Mojave Resources, LLC | New Braunfels, TX 78132 | Oil Operator | Jun 2025 |
| 19555 | Mokan Capital, LLC | Spicewood, TX 78669 | Oil Operator | Jun 2025 |
| 19556 | Molder, Tom | Imperial, TX 79743 | Oil & Gas Operator | Jun 2025 |
| 19557 | Mole Hole Prod. | Bridgeport, TX 76426 | Oil Operator | Jun 2025 |
| 19558 | Mole Operating Co., Inc. | | Oil & Gas Operator | Oct 1983 |
| 19559 | Moleco, LLC | Santa Anna, TX 76878 | Oil Operator | Jun 2025 |
| 19560 | Moleo Gas Corp. | San Angelo, TX 76902 | Oil & Gas Operator | Apr 2018 |
| 19561 | Molitor Oil, Inc. | Wichita, KS 67205 | Oil & Gas Operator | Feb 2025 |
| 19562 | Moller, Herbert T. | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 2003 |
| 19563 | Mollett Oil Productions, LLC | Thelma, KY 41260 | Oil Operator | Dec 2020 |
| 19564 | Molly Oil & Gas, LLC | Dallas, TX 75209 | Oil & Gas Operator | Jun 2025 |
| 19565 | Molopo Energy Texas, LLC | Canada, 00100 | Oil & Gas Operator | Jan 2015 |
| 19566 | Molsdorf Ag LLC | McAllen, TX 78503 | Oil Operator | Sep 2013 |
| 19567 | Molz Oil Company | Kiowa, KS 67070 | Oil & Gas Operator | Apr 2025 |
| 19568 | Momentum Energy Corporation | Austin, TX 78746 | Oil & Gas Operator | Jun 2025 |
| 19569 | Momentum Energy, LLC | Midland, TX 79702 | Oil & Gas Operator | Feb 2004 |
| 19570 | Momentum Oil & Gas, LLC | The Woodlands, TX 77382 | Oil & Gas Operator | May 2015 |
| 19571 | Momentum Oil Company | Albany, TX 76430 | Oil & Gas Operator | May 2003 |
| 19572 | Momentum Operating Co., Inc. | Albany, TX 76430 | Oil & Gas Operator | Jun 2025 |
| 19573 | Momentum Production Corp. | Baytown, TX 77521 | Oil & Gas Operator | Jun 2025 |
| 19574 | Moms Oil & Gas LLC | Nowata, OK 74048 | Oil & Gas Operator | Mar 2023 |
| 19575 | Mon Corp. | Pampa, TX 79066 | Oil & Gas Operator | Jun 2025 |
| 19576 | Mon-Oil Inc | | Oil & Gas Operator | Apr 1996 |
| 19577 | Monadnock Resources Op Co, LLC | Dallas, TX 75209 | Oil & Gas Operator | Jan 2021 |
| 19578 | Monadnock Resources, LLC | Addison, TX 75001 | Oil & Gas Operator | May 2020 |
| 19579 | Monago Operating Inc | | Oil & Gas Operator | Mar 2017 |
| 19580 | Monahan | | Oil Operator | Dec 2009 |
| 19581 | Monahan Rex | Sterling, CO 80751 | Oil & Gas Operator | Jun 2002 |
| 19582 | Monahan* Rex Family Trust | | Oil & Gas Operator | Sep 2010 |
| 19583 | Monarch Energy C | | Oil Operator | Nov 1987 |
| 19584 | Monarch Energy Company LLC | Eufaula, OK 74432 | Oil & Gas Operator | Mar 2025 |
| 19585 | Monarch Energy LLC | Paola, KS 66071 | Oil Operator | Feb 2025 |
| 19586 | Monarch Operating Company | Graham, TX 76450 | Oil & Gas Operator | Jun 2006 |
| 19587 | Monarch Petroleum Corporation | FT Worth, TX 76102 | Oil & Gas Operator | Dec 2019 |
| 19588 | Moncrief Oil | Casper, WY 82602 | Oil & Gas Operator | Feb 1986 |
| 19589 | Moncrief R W Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 1994 |
| 19590 | Moncrief W A Jr | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2025 |
| 19591 | Moncrief, C. B. | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2021 |
| 19592 | Monday Creek Resources LTD | Logan, OH 43138 | Oil Operator | Dec 2024 |
| 19593 | Mondiale Energy, Inc. | Brownwood, TX 76801 | Oil & Gas Operator | Jun 2025 |
| 19594 | Mondo Operating Company | Kilgore, TX 75663 | Oil & Gas Operator | Jun 2025 |
| 19595 | Monex | | Oil Operator | Apr 1988 |
| 19596 | Monexco | Edmond, OK 73034-3776 | Oil & Gas Operator | Mar 2008 |
| 19597 | Monexco LLC | Dallas, TX 75204-2634 | Oil & Gas Operator | Mar 2025 |
| 19598 | Monexco Operating Company | Dallas, TX 75204-2634 | Oil & Gas Operator | Mar 2025 |
| 19599 | Monexco, Inc. | | Oil Operator | Dec 2003 |
| 19600 | Monfort, Roy C. | Iola, KS 66749 | Oil & Gas Operator | Sep 1989 |