| 17501 | M J M D Inc | Burlington, IA 52601 | Oil Operator | Jan 2013 |
| 17502 | M K M LTD | | Oil & Gas Operator | Jun 1998 |
| 17503 | M K M Oil Company | Casper, WY 82602 | Oil & Gas Operator | Jun 1996 |
| 17504 | M K Oil Company | Gillette, WY 82717-3470 | Oil & Gas Operator | Aug 2024 |
| 17505 | M K W Inc | Oklahoma City, OK 73112-8884 | Oil & Gas Operator | Dec 2009 |
| 17506 | M L Energy LLC | | Oil Operator | Jun 2024 |
| 17507 | M L Mayfield Petroleum Corp. | | Oil & Gas Operator | Aug 1991 |
| 17508 | M M & M Resources Inc | Wetumka, OK 74883 | Oil & Gas Operator | Apr 2020 |
| 17509 | M M Energy, Inc. | Oklahoma City, OK 73156 | Oil & Gas Operator | Sep 2024 |
| 17510 | M M Resources In | | Gas Operator | Feb 1990 |
| 17511 | M M Resources, Inc. | Oklahoma City, OK 73156 | Oil & Gas Operator | Sep 2018 |
| 17512 | M P O'Meara, Jr. Inc. | | Oil & Gas Operator | Sep 2000 |
| 17513 | M R Drilling Company | Monahans, TX 79756 | Oil & Gas Operator | Feb 1998 |
| 17514 | M R Schalk | Albuquerque, NM 87125 | Oil & Gas Operator | Jul 2022 |
| 17515 | M R Ventures LLC | Dallas, TX 75367 | Oil & Gas Operator | Jul 2024 |
| 17516 | M S B Company | Slaton, TX 79364 | Oil & Gas Operator | Dec 2016 |
| 17517 | M S Drilling Company | | Oil Operator | Jul 2024 |
| 17518 | M S Exploration Inc | Lexington, OH 44904-9510-9510 | Oil & Gas Operator | Dec 1999 |
| 17519 | M T M Oil | Monahans, TX 79756 | Oil & Gas Operator | Nov 2024 |
| 17520 | M T W Oil Co | Terral, OK 73569 | Oil Operator | Jun 2014 |
| 17521 | M V Crum Gas Partners | Paintsville, KY 41240 | Gas Operator | Dec 2021 |
| 17522 | M V Production Co | | Oil & Gas Operator | Jun 1990 |
| 17523 | M V Purchasing LLC | Wichita, KS 67202 | Oil & Gas Operator | Aug 2024 |
| 17524 | M V Ventures, G. P. | | Oil & Gas Operator | Dec 2000 |
| 17525 | M W Petroleum Company | Houston, TX 77056 | Oil & Gas Operator | Dec 1995 |
| 17526 | M W Production Co. | New Braunfels, TX 78130 | Oil & Gas Operator | Aug 2003 |
| 17527 | M&M Energy, LLC | El Paso, TX 79902 | Oil Operator | Dec 2020 |
| 17528 | M&M Oil, LLC | Artesia, NM 88210254 | Oil & Gas Operator | Sep 2024 |
| 17529 | M&M Services LLC | Neodesha, KS 66757 | Gas Operator | Jul 2024 |
| 17530 | M'Red Petroleum, LLC | Pampa, TX 79065 | Oil & Gas Operator | Dec 2010 |
| 17531 | M-2 Oil Company | Wichita Falls, TX 76306 | Oil & Gas Operator | May 2006 |
| 17532 | M-3 Industries | Casper, WY 82602 | Oil & Gas Operator | Jul 2024 |
| 17533 | M-B Operating Co., Inc. | Rowlett, TX 75030 | Oil & Gas Operator | Nov 2024 |
| 17534 | M-B SWD Inc | Crescent, OK 73028-0533 | Oil Operator | Jul 1997 |
| 17535 | M-C Production & Drilling Co,Inc | Longview, TX 75608 | Oil & Gas Operator | Nov 2024 |
| 17536 | M-Five Oil Company | Seguin, TX 78155 | Oil & Gas Operator | Apr 2002 |
| 17537 | M-G Gas Company, Inc. | Plano, TX 75086 | Oil & Gas Operator | Jun 1999 |
| 17538 | M-P Petroleum Inc | McPherson, KS 67460 | Oil & Gas Operator | Jan 2013 |
| 17539 | M-S-C Corporation | Houston, TX 77027 | Oil Operator | May 1994 |
| 17540 | M-T Petroleum, Inc. | Andrews, TX 79714 | Oil & Gas Operator | Mar 2008 |
| 17541 | M-Tex Resources, Inc. | Merkel, TX 79536 | Oil & Gas Operator | Nov 2024 |
| 17542 | M-V Company | Refugio, TX 78377 | Oil & Gas Operator | Jun 2004 |
| 17543 | M-W-D Oil Co. | Odessa, TX 79760 | Oil & Gas Operator | Jul 1999 |
| 17544 | M. A. B. Production | | Oil Operator | Nov 2009 |
| 17545 | M. A. Robison | | Oil & Gas Operator | Oct 1998 |
| 17546 | M. B. And D. I. Dupree | | Oil Operator | Nov 1992 |
| 17547 | M. D. & G. Partnership | | Oil & Gas Operator | Dec 1996 |
| 17548 | M. E. Fitzgerald | | Oil & Gas Operator | May 1993 |
| 17549 | M. E. Operating & Services, Inc. | Fort Worth, TX 76104 | Oil & Gas Operator | Nov 2024 |
| 17550 | M. F. McCain, Inc. | | Oil & Gas Operator | Jul 1987 |
| 17551 | M. Grace, Inc. | Henderson, TX 75653 | Oil & Gas Operator | Nov 2024 |
| 17552 | M. H. Whittier Energy LLC | | Oil & Gas Operator | Sep 1996 |
| 17553 | M. H.Marr | | Oil & Gas Operator | Mar 1998 |
| 17554 | M. J. G., Inc. | Alice, TX 78333 | Oil & Gas Operator | Jul 2010 |
| 17555 | M. J. McCaffery Oil Co. | Allegany, NY 14706 | Oil Operator | Dec 2017 |
| 17556 | M. J. T. Enterprises | | Oil Operator | Jul 2024 |
| 17557 | M. K. Fuhrman LLC | | Oil Operator | Jun 2024 |
| 17558 | M. K. Production | Caldwell, TX 77836 | Oil & Gas Operator | Mar 2008 |
| 17559 | M. L. Mayfield | | Oil & Gas Operator | Oct 1990 |
| 17560 | M. L. Mayfield Co. | | Oil & Gas Operator | Aug 1991 |
| 17561 | M. P. O'Meara Oil Co. | | Oil & Gas Operator | Apr 1991 |
| 17562 | M. P. S. Prod. Co. | Houston, TX 77225 | Oil & Gas Operator | Dec 1996 |
| 17563 | M. Parker Production Co. | | Oil Operator | May 2024 |
| 17564 | M. S. Delone | | Oil Operator | Nov 1990 |
| 17565 | M. S. Productions, Inc. | Pittsburg, KS 66762 | Oil & Gas Operator | Nov 2019 |
| 17566 | M. T. R. Production | | Oil Operator | Mar 2006 |
| 17567 | M. W. Maxwell | | Oil & Gas Operator | Apr 1990 |
| 17568 | M.A. Yost Operations, Inc | Russell, KS 67665 | Oil Operator | Jul 2024 |
| 17569 | M.A.E. Resources, Inc. | Parker, KS 66072 | Oil Operator | Sep 2011 |
| 17570 | M.A.R.S. Energy | Midland, TX 79705 | Oil & Gas Operator | Nov 2024 |
| 17571 | M.B. Properties, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Oct 1995 |
| 17572 | M.B.J. Operating | Argyle, TX 76226 | Oil & Gas Operator | Jun 2022 |
| 17573 | M.C.E. Trust Group, A General Partnership | Cherryvale, KS 67335 | Oil & Gas Operator | Sep 2009 |
| 17574 | M.D. Skroopka Operating, LLC | Oakland, CA 94611 | Oil & Gas Operator | Nov 2024 |
| 17575 | M.J.O.G., Inc. | Fort Smith, AR 72903 | Oil Operator | Mar 2015 |
| 17576 | M.O.K.A.T. | Bartlesville, OK 74003 | Oil Operator | Jun 2001 |
| 17577 | M.R.M. Operating, Inc. | Midland, TX 79707 | Oil & Gas Operator | Aug 2003 |
| 17578 | M.T. Oil Co. | Copan, OK 74022 | Oil Operator | Aug 2024 |
| 17579 | M.T.M. Petroleum | | Oil & Gas Operator | Oct 1995 |
| 17580 | M2 Louisiana Gas Service, LLC | | Oil Operator | Apr 2010 |
| 17581 | M2 Squared Operating, LLC | Ranger, TX 76470 | Oil Operator | Nov 2024 |
| 17582 | M2S Oil LLC | | Oil Operator | Aug 2024 |
| 17583 | M3V Energy, LLC | Perryton, TX 79070 | Oil & Gas Operator | Nov 2024 |
| 17584 | M4 Energy, LLC | Watsontown, PA 17777-1133 | Oil & Gas Operator | Dec 2023 |
| 17585 | M5oexit, LLC | Pampa, TX 79066 | Oil & Gas Operator | Nov 2024 |
| 17586 | M7 Resources LLC | Santa Fe, NM 87505 | Oil Operator | Jun 2024 |
| 17587 | Ma-Si, Inc. | | Oil & Gas Operator | May 1998 |
| 17588 | Mac 5 Operating, LLC | Pampa, TX 79065 | Oil & Gas Operator | Feb 2021 |
| 17589 | Mac Engineering & Operating Co | | Oil & Gas Operator | May 2005 |
| 17590 | Mac Laskey Kelly Oilfield | El Dorado, KS 67042 | Oil & Gas Operator | Sep 2024 |
| 17591 | Mac Oil Field Service Inc | Millersburg, OH 44654 | Oil & Gas Operator | Dec 2023 |
| 17592 | Mac Operating | Graham, TX 76450 | Oil & Gas Operator | Jun 2023 |
| 17593 | Mace, T. A. | Oklahoma City, OK 73127 | Oil & Gas Operator | Feb 2008 |
| 17594 | Macfarlan Oil And Gas, LLC | Ellenboro, WV 26346-0058 | Oil & Gas Operator | Dec 2021 |
| 17595 | Mach Petroleum, Inc. | Tulsa, OK 74153 | Oil & Gas Operator | Nov 2014 |
| 17596 | Macha Enterprises, Inc. | Wichita Falls, TX 76309 | Oil Operator | Nov 2024 |
| 17597 | Machii-Ross Petroleum Co | | Oil & Gas Operator | Apr 2014 |
| 17598 | Machin & Associates, Inc. | Longview, TX 75606 | Oil & Gas Operator | Nov 2024 |
| 17599 | Macina, P.T. | Shamrock, TX 79079 | Gas Operator | Nov 2024 |
| 17600 | Mack Energy Co. | Duncan, OK 73534 | Oil & Gas Operator | Sep 2024 |