| 21501 | Parsons Engineering Corporation | Tulsa, OK 74137-7505 | Oil & Gas Operator | Oct 2017 |
| 21502 | Partech Investments LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 2024 |
| 21503 | Partee Drilling Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Sep 2024 |
| 21504 | Parten Oil Co. | Houston, TX 77060 | Oil & Gas Operator | Jan 1994 |
| 21505 | Parten Operating Inc. | Houston, TX 77069 | Oil & Gas Operator | Sep 2024 |
| 21506 | Parten, Kenneth N. | St John, KS 67576 | Oil & Gas Operator | May 2009 |
| 21507 | Partin, Charles | Atascosa, TX 78002 | Oil & Gas Operator | Aug 2005 |
| 21508 | Partners In Crude, Inc. | Ponca City, OK 74602 | Oil & Gas Operator | Dec 1997 |
| 21509 | Partners Oil Company | Tulsa, OK 74135 | Oil & Gas Operator | Aug 1995 |
| 21510 | Partners Petrole | | Oil Operator | Oct 1992 |
| 21511 | Partners Petroleum Inc | Independence, OH 44131 | Oil & Gas Operator | Dec 1988 |
| 21512 | Partners Production, Inc. | Caldwell, TX 77836 | Oil & Gas Operator | Sep 2024 |
| 21513 | Partyka, Pauline D. | Forestville, NY 14062 | Gas Operator | Dec 2023 |
| 21514 | Parwest Land Exploration, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Jun 2024 |
| 21515 | Pasadena Oil And Gas Corp | | Oil & Gas Operator | Dec 2001 |
| 21516 | Paschal Petroleum, Inc. | Dallas, TX 75380 | Oil & Gas Operator | Apr 1994 |
| 21517 | Paschal, Phil A. | Kilgore, TX 75662 | Oil Operator | Aug 2021 |
| 21518 | Paschal, Shannon | Kilgore, TX 75663 | Oil Operator | Sep 2024 |
| 21519 | Pash Energy, Inc. | Borger, TX 79008 | Oil & Gas Operator | Sep 2024 |
| 21520 | Pasnik, Matthew J., Pasnik, Linda H. | Eden, NY 14057 | Gas Operator | Dec 2023 |
| 21521 | Passmore Robert W | Ada, OK 74820-5501 | Oil & Gas Operator | May 2022 |
| 21522 | Passmore, Mike F. | Monahans, TX 79756 | Oil & Gas Operator | Sep 2024 |
| 21523 | Pasture Production Company | Bryan, TX 77808 | Oil & Gas Operator | Apr 2005 |
| 21524 | Patalon Robert E | Erie, PA 16505-0444 | Gas Operator | Dec 2023 |
| 21525 | Patara Andover I LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2014 |
| 21526 | Patara Oil & Gas LLC | Dallas, TX 75219 | Oil & Gas Operator | Mar 2018 |
| 21527 | Patchwork Oil & Gas LLC | Davisville, WV 26142 | Oil & Gas Operator | Dec 2021 |
| 21528 | Patco Investments Inc | Seminole, OK 74868 | Oil Operator | Nov 2007 |
| 21529 | Pate, L. T. | Austin, TX 78701 | Oil & Gas Operator | Aug 1994 |
| 21530 | Pate-Dombaugh Pe | | Oil Operator | Sep 1991 |
| 21531 | Pathex Petroleum, Inc | | Gas Operator | Dec 2013 |
| 21532 | Pathfinder Capital L.C. | Dallas, TX 75219 | Oil Operator | Mar 2008 |
| 21533 | Pathfinder Energy Inc | Casper, WY 82605 | Oil & Gas Operator | May 2024 |
| 21534 | Pathfinder Exploration LLC | Norman, OK 73069-8516 | Gas Operator | Nov 2008 |
| 21535 | Patina Oil & Gas Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2016 |
| 21536 | Patina Oklahoma Corp | Duncan, OK 73533-9523 | Oil & Gas Operator | Nov 2014 |
| 21537 | Patina San Juan Incorporated | Farmington, NM 87402 | Oil & Gas Operator | Dec 2007 |
| 21538 | Patkim Production Inc. | | Oil Operator | Jan 2024 |
| 21539 | Patno Oil & Gas Company | Zapata, TX 78076 | Oil & Gas Operator | Sep 2024 |
| 21540 | Patoil Corp. | San Antonio, TX 78205 | Oil & Gas Operator | Aug 2003 |
| 21541 | Patricia Oil Company | Tuleta, TX 78162 | Oil Operator | Sep 2008 |
| 21542 | Patrick & Hadley | Nocona, TX 76255 | Oil & Gas Operator | Jul 1999 |
| 21543 | Patrick & Vaughn | Oklahoma City, OK 73154 | Oil & Gas Operator | Sep 2005 |
| 21544 | Patrick Development Corporation | Leawood, KS 66206 | Oil Operator | May 2024 |
| 21545 | Patrick Exploration Company | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2011 |
| 21546 | Patrick Pet. Corp. Of Michigan | Houston, TX 77227 | Oil & Gas Operator | Aug 1995 |
| 21547 | Patrick Petroleum Co. | Jackson, MI 49201 | Oil & Gas Operator | Nov 1993 |
| 21548 | Patrick Petroleum Corp Of Michigan | | Oil & Gas Operator | Nov 1993 |
| 21549 | Patrick Petroleum Corp. | | Oil & Gas Operator | Oct 1984 |
| 21550 | Patrick Production Company | Houston, TX 77266 | Oil & Gas Operator | Sep 2024 |
| 21551 | Patrick R J & Jack H Vaughn | Oklahoma City, OK 73154 | Oil & Gas Operator | Feb 2002 |
| 21552 | Patrick R J Oper | | Oil & Gas Operator | Jan 1995 |
| 21553 | Patrick RJ Operating Co | Liberal, KS 67905-1157 | Oil & Gas Operator | Nov 2014 |
| 21554 | Patrick Shipley | Indiana, PA 15701-6501 | Oil & Gas Operator | Dec 2016 |
| 21555 | Patrick, G.R. | Nocona, TX 76255 | Oil Operator | Sep 2024 |
| 21556 | Patrick, George & Patrick, Roger | Nocona, TX 76255 | Oil & Gas Operator | Jul 1999 |
| 21557 | Patrick, Joe Ben | Petrolia, TX 76377 | Oil & Gas Operator | Oct 2009 |
| 21558 | Patriot E & P Company | Tyler, TX 75710 | Oil & Gas Operator | Aug 2004 |
| 21559 | Patriot Energy Resources LLC | Golden, CO 80401 | Gas Operator | Aug 2014 |
| 21560 | Patriot Exploration Corp | Stahlstown, PA 15687-1301 | Oil & Gas Operator | Dec 2023 |
| 21561 | Patriot Operating Company, Inc. | Houston, TX 77008 | Oil & Gas Operator | Sep 2003 |
| 21562 | Patriot Petroleum Co LLC | Coppell, TX 75019-4216 | Oil & Gas Operator | Jan 2013 |
| 21563 | Patriot Production LLC | Southlake, TX 76092 | Oil & Gas Operator | Apr 2023 |
| 21564 | Patriot Resources LLC | | Oil & Gas Operator | Jul 2024 |
| 21565 | Patriot Resources, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2017 |
| 21566 | Patriot Services, Inc. | Westbrook, TX 79565 | Oil & Gas Operator | Mar 2008 |
| 21567 | Patron Energy LLC | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2015 |
| 21568 | Pats Rent All | | Oil Operator | Jul 2002 |
| 21569 | Patterson & Patterson Oil Co | Cushing, OK 74023 | Oil Operator | Aug 1995 |
| 21570 | Patterson Bob E | | Oil & Gas Operator | Jul 1993 |
| 21571 | Patterson Bobby Ray | Haskell, OK 74436-8809 | Oil & Gas Operator | Apr 2020 |
| 21572 | Patterson Eddy L | Tulsa, OK 74133 | Oil & Gas Operator | Feb 2022 |
| 21573 | Patterson Energy Corporation | Dallas, TX 75205 | Oil & Gas Operator | Sep 2024 |
| 21574 | Patterson Energy LLC | Hays, KS 67601 | Oil Operator | May 2024 |
| 21575 | Patterson George E | Ada, OK 74820-1108 | Oil & Gas Operator | Jul 2016 |
| 21576 | Patterson Jerry | | Oil Operator | Jan 1995 |
| 21577 | Patterson John H | Shawnee, OK 74801 | Oil Operator | Dec 2006 |
| 21578 | Patterson Oil Company, The | Eastland, TX 76448 | Oil & Gas Operator | Jun 2024 |
| 21579 | Patterson Operating & Pumping Inc Dba/Penergy | Midland, TX 79710 | Oil & Gas Operator | Jul 2018 |
| 21580 | Patterson Operations LLC | Wichita, KS 67228 | Oil Operator | May 2024 |
| 21581 | Patterson Petroleum LLC | Snyder, TX 79550 | Oil & Gas Operator | Oct 2007 |
| 21582 | Patterson Petroleum LP | Snyder, TX 79550 | Oil & Gas Operator | Mar 2008 |
| 21583 | Patterson Petroleum, Inc. | Snyder, TX 79550 | Oil & Gas Operator | Feb 2000 |
| 21584 | Patterson Production Co. | Phillipsburg, KS 67661 | Oil Operator | Jul 1998 |
| 21585 | Patterson Resources, Inc. | | Oil & Gas Operator | Apr 1984 |
| 21586 | Patterson Russell B | Wewoka, OK 74884-1262 | Oil & Gas Operator | Feb 2020 |
| 21587 | Patterson, Ben M., Jr. | San Antonio, TX 78216 | Oil & Gas Operator | Mar 2003 |
| 21588 | Patteson Brother | | Oil Operator | Feb 1990 |
| 21589 | Patteson Oil, A General Partnership | Moline, KS 67353 | Oil Operator | Jul 2023 |
| 21590 | Patteson, Thomas Wade | Moline, KS 67353 | Oil Operator | May 2024 |
| 21591 | Patteson-Sheel O | | Oil Operator | Oct 1990 |
| 21592 | Pattie Creek Oil | | Oil Operator | May 1995 |
| 21593 | Pattie Creek Oil Company | Madison, KS 66860 | Oil Operator | Feb 2000 |
| 21594 | Patton Coleman Exploration Inc. | Abilene, TX 79604 | Oil & Gas Operator | Sep 2024 |
| 21595 | Patton Dale | Stillwater, OK 74074 | Oil & Gas Operator | Dec 2011 |
| 21596 | Patton Exploration, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Sep 2024 |
| 21597 | Patton Judith | Kansas City, MO 64114-5261 | Oil Operator | Jan 2020 |
| 21598 | Patton Oil Compa | | Oil & Gas Operator | Nov 1994 |
| 21599 | Patton Oil Company | Midland, TX 79702 | Oil & Gas Operator | Jun 2007 |
| 21600 | Patton Oil Corp. | Corpus Chrsti, TX 78466 | Oil & Gas Operator | Aug 2003 |