| 20401 | MWK Petroleum, LLC | Augusta, KS 67010 | Oil Operator | Dec 2024 |
| 20402 | MWL Energy LLC | Hamlin, TX 79520 | Oil Operator | Apr 2025 |
| 20403 | MWS Producing, Inc. | Stanton, TX 79782 | Oil & Gas Operator | Apr 2025 |
| 20404 | MWWD Operator, LLC | Victoria, TX 77904 | Oil Operator | Apr 2025 |
| 20405 | MXP Operating LLC | Covington, TX 76093 | Oil & Gas Operator | Jan 2025 |
| 20406 | My Hop Mineral | Moorhead, MN 56560 | Oil & Gas Operator | Apr 2025 |
| 20407 | My Investments Too LLC | | Oil Operator | Oct 2024 |
| 20408 | Myco Energy, Inc. | San Angelo, TX 76906 | Oil & Gas Operator | Dec 2003 |
| 20409 | Myco Industries, Inc. | Artesia, NM 88211 | Oil & Gas Operator | Feb 2015 |
| 20410 | Myco Petroleum | Lovington, NM 88260 | Oil & Gas Operator | Apr 2025 |
| 20411 | Myd, Inc. | Irving, TX 75062 | Oil & Gas Operator | Mar 1998 |
| 20412 | Myers & Hicks Gas Co | | Gas Operator | Dec 2021 |
| 20413 | Myers Drilling And Exploration Inc. | Sedan, KS 67361 | Oil Operator | Aug 2022 |
| 20414 | Myers Drilling Company | Barboursville, WV 25504 | Oil & Gas Operator | Dec 2023 |
| 20415 | Myers Robert L Dba RLM Oil Co | Skiatook, OK 74070 | Oil Operator | Jan 2025 |
| 20416 | Myers Robert W J | | Oil Operator | Jun 1991 |
| 20417 | Myers, A. J. | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2025 |
| 20418 | Myers, Gus & Annie | Sedan, KS 67361 | Oil Operator | Aug 2017 |
| 20419 | Myers, James B. | Olney, TX 76374 | Oil & Gas Operator | Apr 2025 |
| 20420 | Myjo Oil Corporation | Breckenridge, TX 76024 | Oil Operator | Jul 1996 |
| 20421 | Myriad Resources Corporation | Pampa, TX 79066 | Oil & Gas Operator | Apr 2025 |
| 20422 | Mystique Developments | Denver, CO 80202 | Oil & Gas Operator | Dec 1997 |
| 20423 | Mystique Resources Company | Aurora, CO 80016 | Oil & Gas Operator | Feb 2023 |
| 20424 | Myung And Associates, Inc. | Houston, TX 77056 | Oil & Gas Operator | May 2000 |
| 20425 | MZ Operating, Inc | Midland, TX 79701 | Oil & Gas Operator | Apr 1994 |
| 20426 | N & B Enterprise | | Oil Operator | Nov 1994 |
| 20427 | N & B Enterprises, Inc. | Iola, KS 66749 | Oil & Gas Operator | Dec 2024 |
| 20428 | N & B Oil And Gas LLC | Monahans, TX 79756 | Oil & Gas Operator | Apr 2025 |
| 20429 | N & K Oil & Gas Inc | Marietta, OH 45750 | Oil & Gas Operator | Dec 1998 |
| 20430 | N & N Oil | Somerset, OH 43783 | Oil & Gas Operator | Dec 2014 |
| 20431 | N & N Oil LLC | Duncan, OK 73533 | Oil & Gas Operator | May 2023 |
| 20432 | N & O Oil Co. | Imperial, TX 79743 | Oil & Gas Operator | Apr 2025 |
| 20433 | N & P Enterprises | | Oil Operator | May 1997 |
| 20434 | N & W Enterprises, Inc. | Fort Scott, KS 66701 | Oil Operator | Dec 2024 |
| 20435 | N And B Exploration, Inc. | | Oil & Gas Operator | Jun 1993 |
| 20436 | N B C Bank | Tulsa, OK 74135 | Oil Operator | Mar 1996 |
| 20437 | N C B Oil Company | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 20438 | N Central Casing Pullers, Inc. | | Oil & Gas Operator | May 1994 |
| 20439 | N Dale Nichols | Midland, TX 79703 | Oil & Gas Operator | Jun 2004 |
| 20440 | N Eastern Oh O&G Exp Inc | Cleveland, OH 44106 | Oil & Gas Operator | Dec 1999 |
| 20441 | N H Wheless Oil Company | Shreveport, LA 71101 | Gas Operator | Sep 2002 |
| 20442 | N S P Operating Group LLC | El Campo, TX 77437 | Oil & Gas Operator | Aug 2021 |
| 20443 | N V O & G Investments LLC | Woodland Park, CO 80863 | Oil Operator | Sep 2022 |
| 20444 | N-10 Exploration, LLC | Attica, KS 67009 | Oil & Gas Operator | Dec 2024 |
| 20445 | N-A Energy LLC | Arvada, CO 80005 | Oil Operator | Dec 2024 |
| 20446 | N-B Company Inco | | Oil & Gas Operator | Apr 1992 |
| 20447 | N. A. Energy, Inc. | Houston, TX 77057 | Oil & Gas Operator | Dec 2007 |
| 20448 | N. B. Hunt | | Oil & Gas Operator | May 1981 |
| 20449 | N. E. Loomis | | Oil Operator | Oct 1986 |
| 20450 | N. E. Operating Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2013 |
| 20451 | N. J. Pardue | | Oil & Gas Operator | Jul 1994 |
| 20452 | N. R. Price | | Oil & Gas Operator | Nov 1983 |
| 20453 | N. T. Rutledge Oil Co. | | Oil Operator | Jan 1989 |
| 20454 | N. W. Corporation | | Gas Operator | Jan 1989 |
| 20455 | N.F. Producers, Inc. | Berthoud, CO 80513 | Oil Operator | Dec 2024 |
| 20456 | N.L.S., Inc. | Kimberling City, MO 65686 | Oil & Gas Operator | Aug 2016 |
| 20457 | Nabers, Lynn | Austin, TX 78751 | Gas Operator | Jul 2010 |
| 20458 | Nabob Production Company | Amarillo, TX 79105 | Gas Operator | Dec 1991 |
| 20459 | Nabors Drilling Company, Inc. | | Oil & Gas Operator | Sep 1977 |
| 20460 | Nabors Well Services LTD | Houston, TX 77067-4536 | Oil Operator | Apr 2011 |
| 20461 | Nabors-Johnson Prod Co., Inc. | | Oil & Gas Operator | Dec 2020 |
| 20462 | Nacatosh Gas Incorporated | | Oil & Gas Operator | Aug 2013 |
| 20463 | Naco Production | Midland, TX 79708 | Oil & Gas Operator | Aug 2003 |
| 20464 | Nacogdoches Oil & Gas Inc | Nacogdoches, TX 75963 | Oil & Gas Operator | Apr 2025 |
| 20465 | Nacogdoches Oil & Gas, LLC | Nacogdoches, TX 75961 | Oil & Gas Operator | Dec 2017 |
| 20466 | Nadcf Recovery Group, Inc. | Chapin, SC 29036 | Oil & Gas Operator | Apr 2025 |
| 20467 | Nadel & Gussman-Jetta Oper. Co. | | Oil & Gas Operator | Mar 2012 |
| 20468 | Nadel And Gussman | Tulsa, OK 74103 | Oil & Gas Operator | May 2007 |
| 20469 | Nadel And Gussman Heyco, LLC | Roswell, NM 88202 | Oil & Gas Operator | Dec 2014 |
| 20470 | Nadel And Gussman Permian,L.L.C. | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2025 |
| 20471 | Nadel And Gussman Rockies, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2012 |
| 20472 | Nadel And Gussman Ruston, LLC | | Oil & Gas Operator | Dec 2024 |
| 20473 | Nadel And Gussman, L.L.C. | Tulsa, OK 74119 | Oil & Gas Operator | Apr 2025 |
| 20474 | Nadk, LLC | Orem, UT 84097 | Oil & Gas Operator | Nov 2024 |
| 20475 | Nadsoilco LLC | Chicago, IL 60606 | Oil & Gas Operator | Apr 2025 |
| 20476 | Nae, Inc. | Kerrville, TX 78028 | Oil Operator | Sep 2024 |
| 20477 | Naftex Operating Company | | Oil & Gas Operator | Dec 2024 |
| 20478 | Nagel, Arthur F. & Elaine L. | South Dayton, NY 14138 | Gas Operator | Dec 2023 |
| 20479 | Nahama & Weagant Energy Company | | Oil & Gas Operator | Dec 1997 |
| 20480 | Naifco Oil & Gas LLC | Oklahoma City, OK 73107 | Oil & Gas Operator | Jan 2025 |
| 20481 | Nail Stephen Dba Nail Oil & Gas | Maud, OK 74854 | Oil Operator | Dec 2024 |
| 20482 | Nails Operating Company LLC | Hondo, TX 78861 | Oil Operator | Apr 2025 |
| 20483 | Nairn, Robert | Elkhart, KS 67950 | Gas Operator | Apr 2011 |
| 20484 | Nall Oil & Gas | Mineral Wells, TX 76067 | Oil & Gas Operator | Apr 2025 |
| 20485 | Nally, Joseph L | Uniontown, KY 42461 | Oil & Gas Operator | Dec 2021 |
| 20486 | Nami Resources Company, LLC | | Oil & Gas Operator | Dec 2023 |
| 20487 | Nana Oil & Gas Inc. | | Oil & Gas Operator | Jan 2018 |
| 20488 | Nance Engineering Inc. | Houston, TX 77058 | Oil & Gas Operator | Mar 2002 |
| 20489 | Nance Petroleum Corporation | Billings, MT 59103-7168 | Oil & Gas Operator | Nov 2007 |
| 20490 | Nanco Resources, LLC | | Gas Operator | Dec 2021 |
| 20491 | Nancy Oil & Gas Corp | Tulsa, OK 74101 | Oil Operator | Apr 2020 |
| 20492 | Nancy Wilcox E Qualls | Farmington, NM 87410 | Gas Operator | May 2017 |
| 20493 | Nanke Energy LLC | Westminster, CO 80234 | Oil & Gas Operator | Dec 2024 |
| 20494 | Narbo Farms, LTD. | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 20495 | Nard Inc | Buffalo, OK 73834-9737 | Oil Operator | Dec 2005 |
| 20496 | Naro Oil Corporation | Dallas, TX 75230-1986 | Oil & Gas Operator | Nov 2003 |
| 20497 | Nasco Petroleum L.L.C. | | Oil & Gas Operator | Dec 2024 |
| 20498 | Nash Oil & Gas, Inc. | Newton, KS 67114 | Oil & Gas Operator | Dec 2024 |
| 20499 | Nashville Associates Inc | | Oil & Gas Operator | Dec 2003 |
| 20500 | Nassau Resources Inc | Denver, CO 80222 | Oil & Gas Operator | Mar 2000 |