| 19601 | Murray, Tom Enterprises | Monahans, TX 79756 | Oil & Gas Operator | Apr 2026 |
| 19602 | Murray-Teague Assoc. | | Oil Operator | Dec 2005 |
| 19603 | Murtha Contracting Inc. | Conneaut, OH 44030 | Oil & Gas Operator | Dec 2009 |
| 19604 | Murvin & Meier Oil Co. | | Oil & Gas Operator | Dec 2020 |
| 19605 | Musgrave, Dalton | | Oil Operator | Dec 2020 |
| 19606 | Musgrove Casey O | | Oil Operator | Oct 1993 |
| 19607 | Musgrove Casey Oil | Ponca City, OK 74602-0391 | Oil & Gas Operator | Jun 2017 |
| 19608 | Musgrove Energy Inc | Ponca City, OK 74602 | Oil & Gas Operator | Dec 2025 |
| 19609 | Musgrove Petrole | | Oil & Gas Operator | Dec 1996 |
| 19610 | Musgrove Produci | | Oil Operator | May 1989 |
| 19611 | Musgrove Producing | El Dorado, KS 67042 | Oil Operator | Apr 2001 |
| 19612 | Muskegon Development Company | MT Pleasant, MI 48858 | Oil & Gas Operator | Apr 2026 |
| 19613 | Muskegon Operating Company LLC | | Oil & Gas Operator | Aug 2025 |
| 19614 | Muslow And Parker | | Oil & Gas Operator | Jul 1994 |
| 19615 | Muslow Oil Industries | | Oil Operator | Jan 1995 |
| 19616 | Musselman, Owen & King Oper.,Inc | Houston, TX 77002 | Oil & Gas Operator | Feb 1998 |
| 19617 | Mustang Drilling | | Oil & Gas Operator | Nov 1996 |
| 19618 | Mustang Drilling, Inc. | Henderson, TX 75653 | Oil & Gas Operator | Aug 2024 |
| 19619 | Mustang Drilling, LTD. | Henderson, TX 75653 | Oil & Gas Operator | May 2008 |
| 19620 | Mustang Energy Corporation | Hays, KS 67601 | Oil Operator | Dec 2025 |
| 19621 | Mustang Energy Inc. | Porter, TX 77365 | Oil & Gas Operator | Mar 2008 |
| 19622 | Mustang Energy L C | | Oil & Gas Operator | Jan 2013 |
| 19623 | Mustang Fuel Cor | | Oil & Gas Operator | Dec 1990 |
| 19624 | Mustang Fuel Corp. Of Oklahoma | Oklahoma City, OK 73106 | Oil & Gas Operator | Nov 2016 |
| 19625 | Mustang Fuel Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | Apr 2026 |
| 19626 | Mustang Gas Products LLC | Oklahoma City, OK 73114-7406 | Oil & Gas Operator | Sep 2022 |
| 19627 | Mustang Holding, LLC (Finnex) | | Oil & Gas Operator | Feb 2026 |
| 19628 | Mustang Oil & Gas Corporation | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2021 |
| 19629 | Mustang Operating Company | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2006 |
| 19630 | Mustang Resources LLC | Houston, TX 77046 | Oil & Gas Operator | Jan 2026 |
| 19631 | Mutch Harry L | | Oil & Gas Operator | Oct 1991 |
| 19632 | Mutch J O | | Gas Operator | Mar 1990 |
| 19633 | Mutch Oil And Gas Development Inc | | Oil & Gas Operator | Dec 2004 |
| 19634 | Mutschelknaus, Clarence W | Salem, WV 26426-0351 | Oil & Gas Operator | Dec 2021 |
| 19635 | Mutual Oil & Gas Co | Akron, OH 44311 | Oil & Gas Operator | Dec 2000 |
| 19636 | Mutz Oil Operator | | Oil Operator | Dec 1988 |
| 19637 | Muzyl Oil Corp | | Oil & Gas Operator | Sep 2025 |
| 19638 | MV Purchasing LLC | Wichita, KS 67206 | Oil & Gas Operator | Dec 2019 |
| 19639 | MV2 Energy, Inc. | Houston, TX 77069 | Oil & Gas Operator | Apr 2026 |
| 19640 | MVM Resources Louisiana L.L.C. | | Oil & Gas Operator | Jan 2025 |
| 19641 | MVP Production Inc. | | Oil & Gas Operator | Apr 2005 |
| 19642 | MVRC Partnership | Russell, KS 67655 | Oil Operator | Jan 1992 |
| 19643 | MW Oil, Inc | | Oil & Gas Operator | Dec 2025 |
| 19644 | MW Petroleum Corporation | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 19645 | MWJ Producing Company | Midland, TX 79701 | Oil & Gas Operator | Jul 1998 |
| 19646 | MWK Petroleum, LLC | Augusta, KS 67010 | Oil Operator | Dec 2025 |
| 19647 | MWL Energy LLC | Hamlin, TX 79520 | Oil Operator | Apr 2026 |
| 19648 | MWS Producing, Inc. | Stanton, TX 79782 | Oil & Gas Operator | Apr 2026 |
| 19649 | MWWD Operator, LLC | Victoria, TX 77904 | Oil Operator | Apr 2026 |
| 19650 | MXP Operating LLC | Covington, TX 76093 | Oil & Gas Operator | Jan 2026 |
| 19651 | My Hop Mineral | Moorhead, MN 56560 | Oil & Gas Operator | Apr 2026 |
| 19652 | My Investments Too LLC | | Oil Operator | Jun 2025 |
| 19653 | Myco Energy, Inc. | San Angelo, TX 76906 | Oil & Gas Operator | Dec 2003 |
| 19654 | Myco Industries, Inc. | Artesia, NM 88211 | Oil & Gas Operator | Feb 2015 |
| 19655 | Myco Petroleum | Lovington, NM 88260 | Oil & Gas Operator | Apr 2026 |
| 19656 | Myd, Inc. | Irving, TX 75062 | Oil & Gas Operator | Mar 1998 |
| 19657 | Myers Drilling And Exploration Inc. | Sedan, KS 67361 | Oil Operator | Aug 2022 |
| 19658 | Myers Drilling Company | Barboursville, WV 25504 | Oil & Gas Operator | Dec 2024 |
| 19659 | Myers Robert W J | | Oil Operator | Jun 1991 |
| 19660 | Myers, A. J. | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2026 |
| 19661 | Myers, Gus & Annie | Sedan, KS 67361 | Oil Operator | Aug 2017 |
| 19662 | Myers, James B. | Olney, TX 76374 | Oil & Gas Operator | Apr 2026 |
| 19663 | Myers, Robert L | | Oil Operator | Feb 2026 |
| 19664 | Myjo Oil Corporation | Breckenridge, TX 76024 | Oil Operator | Jul 1996 |
| 19665 | Myriad Resources Corporation | Pampa, TX 79066 | Oil & Gas Operator | Apr 2026 |
| 19666 | Mystique Developments | Denver, CO 80202 | Oil & Gas Operator | Dec 1997 |
| 19667 | Mystique Resources Company | Aurora, CO 80016 | Oil & Gas Operator | Feb 2023 |
| 19668 | Myung And Associates, Inc. | Houston, TX 77056 | Oil & Gas Operator | May 2000 |
| 19669 | MZ Operating, Inc | Midland, TX 79701 | Oil & Gas Operator | Apr 1994 |
| 19670 | N & B Enterprise | | Oil Operator | Nov 1994 |
| 19671 | N & B Enterprises, Inc. | Iola, KS 66749 | Oil & Gas Operator | Dec 2025 |
| 19672 | N & B Oil And Gas LLC | Monahans, TX 79756 | Oil & Gas Operator | Apr 2026 |
| 19673 | N & K Oil & Gas Inc | Marietta, OH 45750 | Oil & Gas Operator | Dec 1998 |
| 19674 | N & N Oil | Somerset, OH 43783 | Oil & Gas Operator | Dec 2014 |
| 19675 | N & N Oil LLC | Duncan, OK 73533 | Oil & Gas Operator | May 2023 |
| 19676 | N & O Oil Co. | Imperial, TX 79743 | Oil & Gas Operator | Apr 2026 |
| 19677 | N & P Enterprises | | Oil Operator | May 1997 |
| 19678 | N & W Enterprises, Inc. | Fort Scott, KS 66701 | Oil Operator | Dec 2025 |
| 19679 | N And B Exploration, Inc. | | Oil & Gas Operator | Jun 1993 |
| 19680 | N C B Oil Company | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 19681 | N Central Casing Pullers, Inc. | | Oil & Gas Operator | May 1994 |
| 19682 | N Dale Nichols | Midland, TX 79703 | Oil & Gas Operator | Jun 2004 |
| 19683 | N Eastern Oh O&G Exp Inc | Cleveland, OH 44106 | Oil & Gas Operator | Dec 1999 |
| 19684 | N H Wheless Oil Company | Shreveport, LA 71101 | Gas Operator | Sep 2002 |
| 19685 | N L S Inc | Kimberling City, MO 65686 | Oil & Gas Operator | Aug 2016 |
| 19686 | N S P Operating Group LLC | El Campo, TX 77437 | Oil & Gas Operator | Aug 2021 |
| 19687 | N-10 Exploration, LLC | Attica, KS 67009 | Oil & Gas Operator | Dec 2025 |
| 19688 | N-A Energy LLC | Arvada, CO 80005 | Oil Operator | Dec 2025 |
| 19689 | N-B Company Inco | | Oil & Gas Operator | Apr 1992 |
| 19690 | N. A. Energy, Inc. | Houston, TX 77057 | Oil & Gas Operator | Dec 2007 |
| 19691 | N. B. Hunt | | Oil & Gas Operator | May 1981 |
| 19692 | N. E. Loomis | | Oil Operator | Oct 1986 |
| 19693 | N. E. Operating Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2013 |
| 19694 | N. J. Pardue | | Oil & Gas Operator | Jul 1994 |
| 19695 | N. R. Price | | Oil & Gas Operator | Nov 1983 |
| 19696 | N. T. Rutledge Oil Co. | | Oil Operator | Jan 1989 |
| 19697 | N. W. Corporation | | Gas Operator | Jan 1989 |
| 19698 | N.F. Producers, Inc. | Berthoud, CO 80513 | Oil Operator | Dec 2025 |
| 19699 | Nabers, Lynn | Austin, TX 78751 | Gas Operator | Jul 2010 |
| 19700 | Nabob Production Company | Amarillo, TX 79105 | Gas Operator | Dec 1991 |