| 22501 | Pioneer Feedyard, LLC | Oakley, KS 67748 | Oil Operator | Mar 2026 |
| 22502 | Pioneer Gas Pipeline, Inc. | San Angelo, TX 76903 | Oil & Gas Operator | Jul 2026 |
| 22503 | Pioneer Natural Res. (GPC), Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 1998 |
| 22504 | Pioneer Natural Res. USA, Inc. | Spring, TX 77389 | Oil & Gas Operator | Jul 2026 |
| 22505 | Pioneer Natural Resources Alaska Inc. | | Oil & Gas Operator | Jul 2014 |
| 22506 | Pioneer Natural Resources USA Inc | Irving, TX 75039 | Oil & Gas Operator | Mar 2026 |
| 22507 | Pioneer Of Oklahoma LP | Houston, TX 77090-3655 | Oil & Gas Operator | Mar 2026 |
| 22508 | Pioneer Oil & Gas | South Jordan, UT 84095 | Oil & Gas Operator | Jan 2014 |
| 22509 | Pioneer Oil Company, Inc. | Vincennes, IN 47501 | Oil & Gas Operator | Mar 2026 |
| 22510 | Pioneer Operatio | | Oil & Gas Operator | Mar 1986 |
| 22511 | Pioneer Operations, LLC | Hays, KS 67601 | Oil Operator | Mar 2026 |
| 22512 | Pioneer Prod. Corp. | | Oil & Gas Operator | Jun 1986 |
| 22513 | Pioneer Production Corp-Huggs | | Oil & Gas Operator | Jun 1986 |
| 22514 | Pioneer Prospect LLP | Sioux Falls, SD 57108 | Gas Operator | Dec 2024 |
| 22515 | Pioneer Resources | Jefferson, CO 80456 | Oil Operator | Dec 2009 |
| 22516 | Pioneer Resources Inc | Phillipsburg, KS 67661 | Oil & Gas Operator | Oct 2020 |
| 22517 | Pioneer Resources Prod LP | Irving, TX 75039-3745 | Oil & Gas Operator | Feb 2005 |
| 22518 | Pioneer Resources Producing, L.P | Irving, TX 75039 | Oil & Gas Operator | Feb 2001 |
| 22519 | Pioneer Trucking, LLC | | Oil Operator | May 2026 |
| 22520 | Pipeline Holdings, Inc | | Gas Operator | Dec 2012 |
| 22521 | Pipeline Management, Inc. | Lubbock, TX 79401 | Oil & Gas Operator | Dec 2002 |
| 22522 | Pipeline Oil & Gas, LLC | Phoenix, AZ 85016 | Oil Operator | Feb 2014 |
| 22523 | Pipeline Resources, Inc. | Corpus Christ, TX 78412 | Gas Operator | Aug 2003 |
| 22524 | Piper Operating LLC | Stigler, OK 74462 | Oil & Gas Operator | May 2026 |
| 22525 | Pipes Pursie E | MT Vernon, IL 62864 | Oil & Gas Operator | Dec 2014 |
| 22526 | Piqua Petro, Inc. | Piqua, KS 66761 | Oil Operator | Mar 2026 |
| 22527 | Piqua Petroleum | | Oil Operator | Dec 1996 |
| 22528 | Pistol Ridge Partners, LLC | | Oil & Gas Operator | Apr 2026 |
| 22529 | Pita Oil And Gas LLC | | Oil Operator | Jul 2004 |
| 22530 | Pitchfork Investments, LLC | Amarillo, TX 79109 | Oil & Gas Operator | Jul 2026 |
| 22531 | Pitchfork Oil & Gas, Inc. | Orchard, TX 77464 | Oil & Gas Operator | Jul 2026 |
| 22532 | Pitco Investments, LTD. | Scottsdale, AZ 85261 | Oil & Gas Operator | Jan 2013 |
| 22533 | Pitco Production Company | Tulsa, OK 74170-2320 | Oil & Gas Operator | May 2013 |
| 22534 | Pitcock, Inc. | Graham, TX 76450 | Oil & Gas Operator | Jul 2026 |
| 22535 | Pitman Creek, Inc. | Burlington, IA 52601 | Oil Operator | Dec 1992 |
| 22536 | Pitman John | | Oil & Gas Operator | Jan 1992 |
| 22537 | Pitman, John Douglas Revocable Trust | Oklahoma City, OK 73118 | Oil Operator | Dec 2019 |
| 22538 | Pitman, John Estate (Deceased) | Oklahoma City, OK 73104 | Oil Operator | May 2000 |
| 22539 | Pittencrieff (Gulf Coast), Inc. | Abilene, TX 79608 | Oil & Gas Operator | Sep 1998 |
| 22540 | Pittencrieff America Inc | Abilene, TX 79608 | Oil & Gas Operator | Feb 2003 |
| 22541 | Pittman Kenneth | | Oil Operator | Mar 1995 |
| 22542 | Pittman, Joe N. | | Oil & Gas Operator | Apr 1985 |
| 22543 | Pittman-Allen Operating LLC | Oklahoma City, OK 73122-1105 | Gas Operator | Feb 2016 |
| 22544 | Pitts Energy Co. | Midland, TX 79707 | Oil & Gas Operator | Jul 2026 |
| 22545 | Pitts Oil Co-Dallas Prod Inc | | Oil & Gas Operator | Jun 1991 |
| 22546 | Pitts, Charles Company | Abilene, TX 79604 | Oil & Gas Operator | Dec 1997 |
| 22547 | Pitts, W. C. | | Oil Operator | Jan 1988 |
| 22548 | Pivonka Investments LLC | | Oil & Gas Operator | Jun 2026 |
| 22549 | Pixley Carlis D | Marlow, OK 73055 | Oil & Gas Operator | Sep 1999 |
| 22550 | Pizzi, Ricardo A. | Attica, NY 14011 | Gas Operator | Dec 2025 |
| 22551 | PK Gath & Oilfield SVCS, Inc. | Cleburne, TX 76031 | Oil & Gas Operator | Jul 2026 |
| 22552 | PK Petroleum LLC | Pampa, TX 79065 | Oil & Gas Operator | Jul 2026 |
| 22553 | PKS Energy Savers Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 1994 |
| 22554 | Place Oil And Gas Co. | Eastland, TX 76448 | Oil & Gas Operator | Jul 2026 |
| 22555 | Place, Steve | El Dorado, KS 67042 | Oil Operator | Dec 2019 |
| 22556 | Placer Oil Co. | Sugar Land, TX 77479 | Oil & Gas Operator | Apr 2008 |
| 22557 | Placid Oil Co., Et Al | | Oil & Gas Operator | Jun 1983 |
| 22558 | Placid Oil Company | Houston, TX 77227 | Oil & Gas Operator | Mar 2008 |
| 22559 | Placid Operating, LLC | Dallas, TX 75230 | Oil & Gas Operator | Jul 2021 |
| 22560 | Plains Exploration & Prod. Co. | Houston, TX 77002 | Oil & Gas Operator | Jul 2013 |
| 22561 | Plains Marketing, LP | Cushing, OK 74023 | Oil Operator | Jan 2012 |
| 22562 | Plains Oil & Gas | Cushing, OK 74023-4819 | Oil & Gas Operator | Jan 2019 |
| 22563 | Plains Oil Compa | | Oil & Gas Operator | Aug 1988 |
| 22564 | Plains Petroleum | | Gas Operator | Dec 1996 |
| 22565 | Plains Petroleum Operating Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2014 |
| 22566 | Plains Production Inc | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 1995 |
| 22567 | Plains Radio Pet Co | Midland, TX 79703 | Oil & Gas Operator | Apr 2023 |
| 22568 | Plains Resources Inc. | Houston, TX 77002 | Oil & Gas Operator | Jul 2008 |
| 22569 | Plainsmen Energy LLC | Enid, OK 73703-5747 | Oil & Gas Operator | May 2026 |
| 22570 | Planet Associates Inc | Denver, CO 80218 | Oil Operator | Dec 1994 |
| 22571 | Planet Energy, LLC | | Oil & Gas Operator | Dec 2015 |
| 22572 | Planet Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 22573 | Planet Resource Operating, LLC | | Oil & Gas Operator | Nov 2024 |
| 22574 | Planetierra Three Partnership | Sunray, TX 79086 | Oil & Gas Operator | Jul 2026 |
| 22575 | Plano Corp. | | Oil & Gas Operator | Mar 2005 |
| 22576 | Plano Petroleum | | Oil & Gas Operator | Dec 1994 |
| 22577 | Plano Petroleum Corporation | McKinney, TX 75070 | Oil & Gas Operator | Dec 2019 |
| 22578 | Plano Petroleum LLC | Plano, TX 75093-8773 | Oil & Gas Operator | Apr 2013 |
| 22579 | Plantation Oil Company | | Oil Operator | Dec 2006 |
| 22580 | Plantation Operating Co., Inc. | Holliday, TX 76366 | Oil & Gas Operator | Jul 2026 |
| 22581 | Plantation Operating, LLC | Houston, TX 77041 | Oil & Gas Operator | Nov 2011 |
| 22582 | Plants & Goodwin Inc | Bradford, PA 16701-3733 | Oil & Gas Operator | Dec 2018 |
| 22583 | Plateau Energy, LLC | Smyer, TX 79367 | Oil & Gas Operator | Dec 2024 |
| 22584 | Plateau Operating Corporation | Nashville, TN 37205 | Oil & Gas Operator | Mar 2026 |
| 22585 | Platform Operating, LLC | Midland, TX 79702 | Oil & Gas Operator | Jul 2026 |
| 22586 | Platinum Exploration Inc. | Midland, TX 79701 | Oil & Gas Operator | Jul 2026 |
| 22587 | Platinum Gas Properties LLC | | Gas Operator | May 2026 |
| 22588 | Platinum Oil & Gas, L.L.C. | San Juan, TX 78589 | Oil & Gas Operator | Jul 2026 |
| 22589 | Platinum Oil Properties, LLC | Greenwood VIllage, CO 80111 | Oil & Gas Operator | Aug 2006 |
| 22590 | Platinum Properties Inc. | Wichita Falls, TX 76301 | Oil Operator | Aug 2003 |
| 22591 | Platt Oil Production | | Oil & Gas Operator | Jan 2007 |
| 22592 | Platte Valley Oi | | Oil Operator | Jul 1987 |
| 22593 | Platte Valley Oil Co Inc | Ralston, NE 68127 | Oil Operator | Mar 2026 |
| 22594 | Playa Minerals & Energy, Inc. | Houston, TX 77060 | Oil & Gas Operator | Nov 2003 |
| 22595 | Playa Oil & Gas, LP | | Oil & Gas Operator | Apr 2009 |
| 22596 | Pleasant Hill Oil Co | Carrollton, OH 44615 | Oil Operator | Dec 2006 |
| 22597 | Pleasant Oil & Gas | Clarendon, PA 16313-4532 | Oil & Gas Operator | Dec 2025 |
| 22598 | Pledger Operating Co. Inc. | | Oil & Gas Operator | May 2026 |
| 22599 | Pledger West Broussard Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 22600 | Plegel Oil Company Inc. | | Oil & Gas Operator | May 2026 |