| 21501 | Parnell Operating | Kamay, TX 76369 | Oil & Gas Operator | Jul 2026 |
| 21502 | Parnes Oil Company | | Oil Operator | Jul 1994 |
| 21503 | Paroco DRLG Funds Inc | Houston, TX 77002 | Oil & Gas Operator | Dec 1993 |
| 21504 | Parrish Corporat | | Oil & Gas Operator | Oct 1994 |
| 21505 | Parrish Corporation | Wichita, KS 67202 | Oil & Gas Operator | Jun 2002 |
| 21506 | Parrish Jr W F | Ardmore, OK 73401-2941 | Oil & Gas Operator | Feb 2025 |
| 21507 | Parrish, H Dwane & Rhonda K | Loco Hills, NM 88255 | Oil & Gas Operator | Apr 2022 |
| 21508 | Parrot Energy Company | Cortland, OH 44410 | Oil & Gas Operator | Dec 2025 |
| 21509 | Parsage Oil Company, L.L.C. | | Oil & Gas Operator | Apr 2026 |
| 21510 | Parsell, R. W. | Whitlash, MT 59545 | Oil & Gas Operator | Apr 2026 |
| 21511 | Parsell, RF Partnership | Bellevue, WA 98004 | Oil Operator | Apr 2026 |
| 21512 | Parsley Energy Operations, LLC | Irving, TX 75038 | Oil & Gas Operator | Jan 2021 |
| 21513 | Parsley, Amos | Wichita Falls, TX 76301 | Oil & Gas Operator | Mar 2008 |
| 21514 | Parsons Engineering Corporation | Tulsa, OK 74137-7505 | Oil & Gas Operator | Oct 2017 |
| 21515 | Partech Investments LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2026 |
| 21516 | Partee Drilling Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Jul 2026 |
| 21517 | Parten Oil Co. | Houston, TX 77060 | Oil & Gas Operator | Jan 1994 |
| 21518 | Parten Operating Inc. | Houston, TX 77069 | Oil & Gas Operator | Jul 2026 |
| 21519 | Parten, Kenneth N. | St John, KS 67576 | Oil & Gas Operator | May 2009 |
| 21520 | Partin, Charles | Atascosa, TX 78002 | Oil & Gas Operator | Aug 2005 |
| 21521 | Partners In Crude, Inc. | Ponca City, OK 74602 | Oil & Gas Operator | Dec 1997 |
| 21522 | Partners Oil Company | Tulsa, OK 74135 | Oil & Gas Operator | Aug 1995 |
| 21523 | Partners Petrole | | Oil Operator | Oct 1992 |
| 21524 | Partners Petroleum Inc | Independence, OH 44131 | Oil & Gas Operator | Dec 1988 |
| 21525 | Partners Production, Inc. | Caldwell, TX 77836 | Oil & Gas Operator | Jul 2026 |
| 21526 | Partyka, Joseph | Forestville, NY 14062 | Gas Operator | Dec 2025 |
| 21527 | Parwest Land Exploration Inc | Oklahoma City, OK 73112 | Oil & Gas Operator | Apr 2026 |
| 21528 | Pasadena Oil And Gas Corp | | Oil & Gas Operator | Dec 2001 |
| 21529 | Paschal Petroleum, Inc. | Dallas, TX 75380 | Oil & Gas Operator | Apr 1994 |
| 21530 | Paschal, Phil A. | Kilgore, TX 75662 | Oil Operator | Aug 2021 |
| 21531 | Paschal, Shannon | Kilgore, TX 75663 | Oil Operator | Jul 2026 |
| 21532 | Pasco Oil Company | Oklahoma City, OK 73172-0454 | Oil & Gas Operator | Aug 2000 |
| 21533 | Pash Energy, Inc. | Borger, TX 79008 | Oil & Gas Operator | Jul 2026 |
| 21534 | Pasnik, Joshua | Orchard Park, NY 14127 | Gas Operator | Dec 2025 |
| 21535 | Pasnik, Matthew J., Pasnik, Linda H. | Eden, NY 14057 | Gas Operator | Dec 2025 |
| 21536 | Passmore Robert W | Ada, OK 74820-5501 | Oil & Gas Operator | May 2022 |
| 21537 | Passmore, Mike F. | Monahans, TX 79756 | Oil & Gas Operator | Jul 2026 |
| 21538 | Pasture Production Company | Bryan, TX 77808 | Oil & Gas Operator | Apr 2005 |
| 21539 | Patalon Robert E | Erie, PA 16505-0444 | Gas Operator | Dec 2025 |
| 21540 | Patara Andover I LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2014 |
| 21541 | Patara Oil & Gas LLC | Dallas, TX 75219 | Oil & Gas Operator | Mar 2018 |
| 21542 | Patchwork Oil & Gas LLC | Davisville, WV 26142 | Oil & Gas Operator | Dec 2021 |
| 21543 | Patco Investments Inc | Seminole, OK 74868 | Oil Operator | Nov 2007 |
| 21544 | Pate, L. T. | Austin, TX 78701 | Oil & Gas Operator | Aug 1994 |
| 21545 | Pate-Dombaugh Pe | | Oil Operator | Sep 1991 |
| 21546 | Pathex Petroleum, Inc | | Gas Operator | Dec 2013 |
| 21547 | Pathfinder Capital L.C. | Dallas, TX 75219 | Oil Operator | Mar 2008 |
| 21548 | Pathfinder Energy Inc | Casper, WY 82605 | Oil & Gas Operator | May 2024 |
| 21549 | Pathfinder Exploration LLC | Norman, OK 73069-8516 | Gas Operator | Aug 2003 |
| 21550 | Pathway Resources LLC | | Oil Operator | Jun 2026 |
| 21551 | Patina Oil & Gas Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2016 |
| 21552 | Patina Oklahoma Corp | Duncan, OK 73533-9523 | Oil & Gas Operator | Nov 2014 |
| 21553 | Patina San Juan Incorporated | Farmington, NM 87402 | Oil & Gas Operator | Dec 2007 |
| 21554 | Patkim Production Inc. | | Oil Operator | Jan 2025 |
| 21555 | Patno Oil & Gas Company | Zapata, TX 78076 | Oil & Gas Operator | Jul 2026 |
| 21556 | Patoil Corp. | San Antonio, TX 78205 | Oil & Gas Operator | Aug 2003 |
| 21557 | Patricia Oil Company | Tuleta, TX 78162 | Oil Operator | Sep 2008 |
| 21558 | Patrick & Hadley | Nocona, TX 76255 | Oil & Gas Operator | Jul 1999 |
| 21559 | Patrick & Vaughn | Oklahoma City, OK 73154 | Oil & Gas Operator | Sep 2005 |
| 21560 | Patrick Development Corporation | Leawood, KS 66206 | Oil Operator | Mar 2026 |
| 21561 | Patrick Exploration Company | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2011 |
| 21562 | Patrick Pet. Corp. Of Michigan | Houston, TX 77227 | Oil & Gas Operator | Aug 1995 |
| 21563 | Patrick Petroleum Co. | Jackson, MI 49201 | Oil & Gas Operator | Nov 1993 |
| 21564 | Patrick Petroleum Corp Of Michigan | | Oil & Gas Operator | Nov 1993 |
| 21565 | Patrick Petroleum Corporation | | Oil & Gas Operator | Oct 1984 |
| 21566 | Patrick Production Company | Houston, TX 77027 | Oil & Gas Operator | Jul 2026 |
| 21567 | Patrick R J & Jack H Vaughn | Oklahoma City, OK 73154 | Oil & Gas Operator | Feb 2002 |
| 21568 | Patrick R J Oper | | Oil & Gas Operator | Jan 1995 |
| 21569 | Patrick RJ Operating Co | Liberal, KS 67905-1157 | Oil & Gas Operator | Nov 2014 |
| 21570 | Patrick Shipley | Indiana, PA 15701-6501 | Oil & Gas Operator | Dec 2016 |
| 21571 | Patrick, G.R. | Nocona, TX 76255 | Oil Operator | Jul 2026 |
| 21572 | Patrick, George & Patrick, Roger | Nocona, TX 76255 | Oil & Gas Operator | Jul 1999 |
| 21573 | Patrick, Joe Ben | Petrolia, TX 76377 | Oil & Gas Operator | Oct 2009 |
| 21574 | Patriot E & P Company | Tyler, TX 75710 | Oil & Gas Operator | Aug 2004 |
| 21575 | Patriot Energy Resources LLC | Golden, CO 80401 | Gas Operator | Aug 2014 |
| 21576 | Patriot Exploration Corp | Stahlstown, PA 15687-1301 | Oil & Gas Operator | Dec 2025 |
| 21577 | Patriot Operating Company, Inc. | Houston, TX 77008 | Oil & Gas Operator | Sep 2003 |
| 21578 | Patriot Petroleum Co LLC | Coppell, TX 75019-4216 | Oil & Gas Operator | Jan 2013 |
| 21579 | Patriot Production LLC | Southlake, TX 76092 | Oil & Gas Operator | Apr 2023 |
| 21580 | Patriot Resources LLC | | Oil & Gas Operator | May 2026 |
| 21581 | Patriot Resources, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2017 |
| 21582 | Patriot Services, Inc. | Westbrook, TX 79565 | Oil & Gas Operator | Mar 2008 |
| 21583 | Patron Energy LLC | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2015 |
| 21584 | Pats Rent All | | Oil Operator | Jul 2002 |
| 21585 | Patterson & Patterson Oil Co | Cushing, OK 74023 | Oil Operator | Aug 1995 |
| 21586 | Patterson Bobby Ray | Haskell, OK 74436-8809 | Oil & Gas Operator | Apr 2020 |
| 21587 | Patterson Eddy L | Tulsa, OK 74133 | Oil & Gas Operator | Feb 2022 |
| 21588 | Patterson Energy Corporation | Dallas, TX 75367 | Oil & Gas Operator | Jul 2026 |
| 21589 | Patterson Energy LLC | Hays, KS 67601 | Oil & Gas Operator | Mar 2026 |
| 21590 | Patterson George E | Ada, OK 74820-1108 | Oil & Gas Operator | Jul 2016 |
| 21591 | Patterson Jerry | | Oil Operator | Jan 1995 |
| 21592 | Patterson John H | Shawnee, OK 74801 | Oil Operator | Dec 2006 |
| 21593 | Patterson Oil Company, The | Eastland, TX 76448 | Oil & Gas Operator | Apr 2026 |
| 21594 | Patterson Operating & Pumping Inc Dba/Penerg | Midland, TX 79710 | Oil & Gas Operator | Jul 2018 |
| 21595 | Patterson Operations LLC | Wichita, KS 67228 | Oil Operator | Mar 2026 |
| 21596 | Patterson Petroleum LLC | Snyder, TX 79550 | Oil & Gas Operator | Oct 2007 |
| 21597 | Patterson Petroleum LP | Snyder, TX 79550 | Oil & Gas Operator | Mar 2008 |
| 21598 | Patterson Petroleum, Inc. | Snyder, TX 79550 | Oil & Gas Operator | Feb 2000 |
| 21599 | Patterson Production Co. | Phillipsburg, KS 67661 | Oil Operator | Jul 1998 |
| 21600 | Patterson Resources, Inc. | | Oil & Gas Operator | Apr 1984 |