| 20701 | Mustang Fuel Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | Dec 2025 |
| 20702 | Mustang Gas Products LLC | Oklahoma City, OK 73114-7406 | Oil & Gas Operator | Sep 2022 |
| 20703 | Mustang Holding, LLC (Finnex) | | Oil & Gas Operator | Dec 2025 |
| 20704 | Mustang Oil & Gas Corporation | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2021 |
| 20705 | Mustang Operating Company | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2006 |
| 20706 | Mustang Resources LLC | Houston, TX 77046 | Oil & Gas Operator | Nov 2025 |
| 20707 | Mutch Harry L | | Oil Operator | Oct 1991 |
| 20708 | Mutig Energies Inc | Sarver, PA 15055 | Oil & Gas Operator | Dec 2023 |
| 20709 | Mutschelknaus, Clarence W | Salem, WV 26426-0351 | Oil & Gas Operator | Dec 2021 |
| 20710 | Mutual Oil & Gas Co | Akron, OH 44311 | Oil & Gas Operator | Dec 2000 |
| 20711 | Mutz Oil Operator | | Oil Operator | Dec 1988 |
| 20712 | MV Purchasing LLC | Wichita, KS 67206 | Oil & Gas Operator | Dec 2019 |
| 20713 | MV2 Energy, Inc. | Houston, TX 77069 | Oil & Gas Operator | Feb 2026 |
| 20714 | MVM Resources Louisiana L.L.C. | | Oil & Gas Operator | Jan 2025 |
| 20715 | MVP Production Inc. | | Oil & Gas Operator | Apr 2005 |
| 20716 | MVRC Partnership | Russell, KS 67655 | Oil Operator | Jan 1992 |
| 20717 | MW Oil, Inc | | Oil & Gas Operator | Sep 2025 |
| 20718 | MW Petroleum Corporation | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 20719 | MWJ Producing Company | Midland, TX 79701 | Oil & Gas Operator | Jul 1998 |
| 20720 | MWK Petroleum, LLC | Augusta, KS 67010 | Oil Operator | Sep 2025 |
| 20721 | MWL Energy LLC | Hamlin, TX 79520 | Oil Operator | Feb 2026 |
| 20722 | MWS Producing, Inc. | Stanton, TX 79782 | Oil & Gas Operator | Feb 2026 |
| 20723 | MWWD Operator, LLC | Victoria, TX 77904 | Oil Operator | Feb 2026 |
| 20724 | MXP Operating LLC | Covington, TX 76093 | Oil & Gas Operator | Nov 2025 |
| 20725 | My Hop Mineral | Moorhead, MN 56560 | Oil & Gas Operator | Feb 2026 |
| 20726 | Myco Energy, Inc. | San Angelo, TX 76906 | Oil & Gas Operator | Dec 2003 |
| 20727 | Myco Industries, Inc. | Artesia, NM 88211 | Oil & Gas Operator | Feb 2015 |
| 20728 | Myco Petroleum | Lovington, NM 88260 | Oil & Gas Operator | Feb 2026 |
| 20729 | Myd, Inc. | Irving, TX 75062 | Oil & Gas Operator | Mar 1998 |
| 20730 | Myers Drilling And Exploration Inc. | Sedan, KS 67361 | Oil Operator | Aug 2022 |
| 20731 | Myers Drilling Company | Barboursville, WV 25504 | Oil & Gas Operator | Dec 2024 |
| 20732 | Myers Robert W J | | Oil Operator | Jun 1991 |
| 20733 | Myers, A. J. | Jacksboro, TX 76458 | Oil & Gas Operator | Feb 2026 |
| 20734 | Myers, Bobby | Cherryvale, KS 67335 | Oil & Gas Operator | Jun 2020 |
| 20735 | Myers, Gus & Annie | Sedan, KS 67361 | Oil Operator | Aug 2017 |
| 20736 | Myers, James B. | Olney, TX 76374 | Oil & Gas Operator | Feb 2026 |
| 20737 | Myers, Robert L | | Oil Operator | Nov 2025 |
| 20738 | Myjo Oil Corporation | Breckenridge, TX 76024 | Oil Operator | Jul 1996 |
| 20739 | Myriad Resources Corporation | Pampa, TX 79066 | Oil & Gas Operator | Feb 2026 |
| 20740 | Mystique Developments | Denver, CO 80202 | Oil & Gas Operator | Dec 1997 |
| 20741 | Mystique Resources Company | Aurora, CO 80016 | Oil & Gas Operator | Feb 2023 |
| 20742 | Myung And Associates, Inc. | Houston, TX 77056 | Oil & Gas Operator | May 2000 |
| 20743 | MZ Operating, Inc | Midland, TX 79701 | Oil & Gas Operator | Apr 1994 |
| 20744 | N & B Enterprise | | Oil Operator | Nov 1994 |
| 20745 | N & B Enterprises, Inc. | Iola, KS 66749 | Oil & Gas Operator | Sep 2025 |
| 20746 | N & B Oil And Gas LLC | Monahans, TX 79756 | Oil & Gas Operator | Feb 2026 |
| 20747 | N & K Oil & Gas Inc | Marietta, OH 45750 | Oil & Gas Operator | Dec 1998 |
| 20748 | N & N Oil | Somerset, OH 43783 | Oil & Gas Operator | Dec 2014 |
| 20749 | N & N Oil LLC | Duncan, OK 73533 | Oil & Gas Operator | May 2023 |
| 20750 | N & O Oil Co. | Imperial, TX 79743 | Oil & Gas Operator | Feb 2026 |
| 20751 | N & P Enterprises | | Oil Operator | May 1997 |
| 20752 | N & W Enterprises, Inc. | Fort Scott, KS 66701 | Oil Operator | Sep 2025 |
| 20753 | N And B Exploration, Inc. | | Oil & Gas Operator | Jun 1993 |
| 20754 | N C B Oil Company | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 20755 | N Central Casing Pullers, Inc. | | Oil & Gas Operator | May 1994 |
| 20756 | N Dale Nichols | Midland, TX 79703 | Oil & Gas Operator | Jun 2004 |
| 20757 | N Eastern Oh O&G Exp Inc | Cleveland, OH 44106 | Oil & Gas Operator | Dec 1999 |
| 20758 | N H Wheless Oil Company | Shreveport, LA 71101 | Gas Operator | Sep 2002 |
| 20759 | N L S Inc | Kimberling City, MO 65686 | Oil & Gas Operator | Aug 2016 |
| 20760 | N R G Reserves, Inc. | El Campo, TX 77437 | Oil & Gas Operator | Oct 2004 |
| 20761 | N S P Operating Group LLC | El Campo, TX 77437 | Oil & Gas Operator | Aug 2021 |
| 20762 | N-10 Exploration, LLC | Attica, KS 67009 | Oil & Gas Operator | Sep 2025 |
| 20763 | N-A Energy LLC | Arvada, CO 80005 | Oil Operator | Sep 2025 |
| 20764 | N-B Company Inco | | Oil & Gas Operator | Apr 1992 |
| 20765 | N. A. Energy, Inc. | Houston, TX 77057 | Oil & Gas Operator | Dec 2007 |
| 20766 | N. B. Hunt | | Oil & Gas Operator | May 1981 |
| 20767 | N. E. Loomis | | Oil Operator | Oct 1986 |
| 20768 | N. E. Operating Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2013 |
| 20769 | N. J. Pardue | | Oil & Gas Operator | Jul 1994 |
| 20770 | N. R. Price | | Oil & Gas Operator | Nov 1983 |
| 20771 | N. T. Rutledge Oil Co. | | Oil Operator | Jan 1989 |
| 20772 | N. W. Corporation | | Gas Operator | Jan 1989 |
| 20773 | N.F. Producers, Inc. | Berthoud, CO 80513 | Oil Operator | Sep 2025 |
| 20774 | Nabers, Lynn | Austin, TX 78751 | Gas Operator | Jul 2010 |
| 20775 | Nabob Production Company | Amarillo, TX 79105 | Gas Operator | Dec 1991 |
| 20776 | Nabors Drilling Company, Inc. | | Oil & Gas Operator | Sep 1977 |
| 20777 | Nabors Well Services LTD | Houston, TX 77067-4536 | Oil Operator | Apr 2011 |
| 20778 | Nabors-Johnson Prod Co., Inc. | | Oil & Gas Operator | Dec 2020 |
| 20779 | Nacatosh Gas Incorporated | | Oil & Gas Operator | Aug 2013 |
| 20780 | Naco Production | Midland, TX 79708 | Oil & Gas Operator | Aug 2003 |
| 20781 | Nacogdoches Oil & Gas Inc | Nacogdoches, TX 75963 | Oil & Gas Operator | Feb 2026 |
| 20782 | Nacogdoches Oil & Gas, LLC | Nacogdoches, TX 75961 | Oil & Gas Operator | Dec 2017 |
| 20783 | Nadcf Recovery Group, Inc. | Chapin, SC 29036 | Oil & Gas Operator | Feb 2026 |
| 20784 | Nadel & Gussman | Tulsa, OK 74103 | Oil & Gas Operator | May 2007 |
| 20785 | Nadel & Gussman-Jetta Oper. Co. | | Oil & Gas Operator | Mar 2012 |
| 20786 | Nadel And Gussman Heyco, LLC | Roswell, NM 88202 | Oil & Gas Operator | Dec 2014 |
| 20787 | Nadel And Gussman LLC | Tulsa, OK 74119 | Oil & Gas Operator | Feb 2026 |
| 20788 | Nadel And Gussman Permian,L.L.C. | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2026 |
| 20789 | Nadel And Gussman Rockies, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2012 |
| 20790 | Nadel And Gussman Ruston, LLC | | Oil & Gas Operator | Dec 2024 |
| 20791 | Nadk, LLC | Orem, UT 84097 | Oil & Gas Operator | Dec 2025 |
| 20792 | Nadsoilco LLC | The Woodlands, TX 77382 | Oil & Gas Operator | Feb 2026 |
| 20793 | Nae, Inc. | Kerrville, TX 78028 | Oil Operator | Jul 2025 |
| 20794 | Naftex Operating Company | | Oil & Gas Operator | Dec 2025 |
| 20795 | Nagel, Arthur F. & Elaine L. | South Dayton, NY 14138 | Gas Operator | Dec 2024 |
| 20796 | Nagy Joseph | | Oil Operator | Dec 2014 |
| 20797 | Nahama & Weagant Energy Company | | Oil & Gas Operator | Dec 1997 |
| 20798 | Naifco Oil & Gas LLC | Oklahoma City, OK 73107 | Oil & Gas Operator | Dec 2025 |
| 20799 | Nail Stephen Dba Nail Oil & Gas | Maud, OK 74854 | Oil Operator | Aug 2025 |
| 20800 | Nails Operating Company LLC | Hondo, TX 78861 | Oil Operator | Feb 2026 |