| 4501 | P I C Inc | Ponca City, OK 74602 | Oil & Gas Operator | Jan 2013 |
| 4502 | P K & L Oil Properties | Shawnee, OK 74802-0931 | Oil & Gas Operator | Mar 2001 |
| 4503 | P O & G Panhandle LP | Houston, TX 77057 | Oil & Gas Operator | Jan 2025 |
| 4504 | P T Oil Co Inc | Walters, OK 73572-9505 | Oil Operator | Nov 2014 |
| 4505 | P-2 Exploraton Co Inc | Pampa, TX 79065-2920 | Oil & Gas Operator | Jun 1996 |
| 4506 | P.O.&G. Operating, LLC | Houston, TX 77057 | Oil & Gas Operator | Apr 2025 |
| 4507 | Pablo Energy II, LLC | Amarillo, TX 79105 | Oil & Gas Operator | Jan 2025 |
| 4508 | Pace Exploration LLC | Tulsa, OK 74133 | Oil & Gas Operator | Jan 2025 |
| 4509 | Pace Petroleum Company | Dallas, TX 75206 | Oil & Gas Operator | Apr 2025 |
| 4510 | Pacific Enterprise Oil Co USA | Los Angeles, CA 90071-2005 | Oil & Gas Operator | Aug 2012 |
| 4511 | Pacific Enterprises Royalty Co | Oklahoma City, OK 73101 | Oil & Gas Operator | Feb 2002 |
| 4512 | Pacific Phoenix Inc | Bartlesville, OK 74005 | Oil & Gas Operator | Jun 1998 |
| 4513 | Pactola Development Co | Tulsa, OK 74159 | Oil & Gas Operator | Sep 2004 |
| 4514 | Page Petroleum Inc | Calgary, AB T2P3M-3000 | Oil & Gas Operator | Nov 1998 |
| 4515 | Painter & McPhail | Bartlesville, OK 74006 | Oil Operator | Sep 1996 |
| 4516 | Pak Energy LLC | Calgary, AB T3A-5E8 | Oil Operator | Sep 2022 |
| 4517 | Pal Energy LLC | Guymon, OK 73942-1950 | Gas Operator | Aug 2009 |
| 4518 | Pal Kids Inc | Coronado, CA 92118 | Oil & Gas Operator | Nov 2000 |
| 4519 | Palace Exploration Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2007 |
| 4520 | Paleo, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Apr 2025 |
| 4521 | Palisades Asset Holding Co LLC | Dallas, TX 75201 | Oil & Gas Operator | Aug 2017 |
| 4522 | Palm Oil & Gas Company | Sedona, AZ 86340 | Oil & Gas Operator | Feb 2025 |
| 4523 | Palm Operating LLC | Oklahoma City, OK 73106-5646 | Oil & Gas Operator | Nov 2019 |
| 4524 | Palo Duro Midstream (Texas Gathreing) L.P | Houston, TX 77002 | Oil & Gas Operator | Aug 2022 |
| 4525 | Paloma Operating Co Inc | Houston, TX 77002-5220 | Oil & Gas Operator | Dec 2024 |
| 4526 | Paloma Resources, LLC | Houston, TX 77002 | Oil & Gas Operator | Jun 2018 |
| 4527 | Palomino Petroleum Inc | Newton, KS 67114 | Oil & Gas Operator | Dec 2024 |
| 4528 | Paluca Petroleum Inc | Holdenville, OK 74848 | Oil & Gas Operator | Jan 2025 |
| 4529 | Pan Petroleum MLP | Kansas City, MO 64114 | Oil & Gas Operator | Aug 1997 |
| 4530 | Pan Texas Petroleum Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2003 |
| 4531 | Pan Western Energy Corporation | Tulsa, OK 74114 | Oil & Gas Operator | Apr 2025 |
| 4532 | Panada Exploration, Inc. | Tulsa, OK 74135 | Oil & Gas Operator | Jun 1996 |
| 4533 | Panadero Oil Company | Dallas, TX 75206 | Oil & Gas Operator | Apr 2002 |
| 4534 | Panda Resources Inc | Tulsa, OK 74137-3536 | Oil & Gas Operator | Feb 1994 |
| 4535 | Panenergy Services Inc | Houston, TX 77525 | Oil & Gas Operator | May 2001 |
| 4536 | Panexco Operating LLC | Oklahoma City, OK 73103-2203 | Oil & Gas Operator | Oct 2014 |
| 4537 | Pangaea Exploration Corp | Edmond, OK 73013 | Oil & Gas Operator | May 2019 |
| 4538 | Panhandle Eastern Pipeline Company LP | Houston, TX 77002-6803 | Oil & Gas Operator | Oct 1999 |
| 4539 | Panhandle Oil & Gas Consultants Inc | Woodward, OK 73802-5011 | Oil & Gas Operator | Jul 2015 |
| 4540 | Panhandle Oil & Gas Inc | Oklahoma City, OK 73112-5688 | Oil & Gas Operator | May 2007 |
| 4541 | Panhandle Oilfield Service Companies Inc | Liberal, KS 67905-1256 | Oil Operator | Sep 2000 |
| 4542 | Panhandle Trading Company | Houston, TX 77251-1642 | Oil & Gas Operator | Jun 2003 |
| 4543 | Panoak Oil & Gas Corporation | Tulsa, OK 74137 | Oil & Gas Operator | Aug 2018 |
| 4544 | Pantera Energy Company | Amarillo, TX 79101 | Oil & Gas Operator | Apr 2025 |
| 4545 | Panther Energy Company, LLC | Tulsa, OK 74103 | Oil & Gas Operator | May 2022 |
| 4546 | Panther Operating LLC | Pauls Valley, OK 73075 | Oil & Gas Operator | Jan 2025 |
| 4547 | Pap Oil Company Inc | Cement, OK 73017-0240 | Oil & Gas Operator | Nov 1998 |
| 4548 | Papal Enterprises Inc | Oklahoma City, OK 73154-1555 | Oil & Gas Operator | Apr 2015 |
| 4549 | Pappe Court Jr | Kingfisher, OK 73750-0688 | Oil & Gas Operator | Nov 2001 |
| 4550 | Par Oil Company Inc | Denver, CO 80201 | Oil & Gas Operator | Jun 2003 |
| 4551 | Para Pro Corporation | Sedona, AZ 86336-5745 | Oil & Gas Operator | Jan 2005 |
| 4552 | Paradigm Petroleum Corporation | Abilene, TX 79605 | Oil & Gas Operator | Apr 2025 |
| 4553 | Paradigm Twenty LLC | Stillwater, OK 74074-1745 | Oil & Gas Operator | Jan 2025 |
| 4554 | Paradox Petroleum Company | Amarillo, TX 79114-7587 | Oil & Gas Operator | Dec 1998 |
| 4555 | Paragon Industries Inc | Sapulpa, OK 74066-6987 | Oil Operator | Jan 2025 |
| 4556 | Paragon Production Company | Edmond, OK 73013-5051 | Oil & Gas Operator | Feb 2021 |
| 4557 | Paramore Oil Company | Duncan, OK 73533 | Oil & Gas Operator | Apr 2022 |
| 4558 | Paramount Petroleum Corp | Dallas, TX 75374 | Oil Operator | Dec 2000 |
| 4559 | Parawax Corp | Oklahoma City, OK 73129 | Oil Operator | Oct 1997 |
| 4560 | Pardee Production Co. | Skiatook, OK 74070 | Oil & Gas Operator | Mar 2021 |
| 4561 | Parex Production Inc | | Gas Operator | Jan 1995 |
| 4562 | Parham Edith | Beggs, OK 74421-2436 | Oil Operator | Oct 2024 |
| 4563 | Parish Petroleum Company | Tulsa, OK 74137 | Oil & Gas Operator | Jan 2025 |
| 4564 | Park Avenue Exploration Corp | Oklahoma City, OK 73102-5604 | Oil & Gas Operator | Sep 2011 |
| 4565 | Park Kenneth Y | Skiatook, OK 74070-6060 | Oil & Gas Operator | Jan 2025 |
| 4566 | Park William M | Sperry, OK 74073 | Oil & Gas Operator | Jan 2025 |
| 4567 | Parker & Parsley Dev Co | Midland, TX 79702 | Oil & Gas Operator | Mar 2015 |
| 4568 | Parker & Parsley Dev LP | Irving, TX 75039-3745 | Oil & Gas Operator | Mar 2015 |
| 4569 | Parker James A | Sand Springs, OK 74063 | Oil & Gas Operator | Feb 2025 |
| 4570 | Parker Joe | Talala, OK 74080-3556 | Oil & Gas Operator | Dec 2012 |
| 4571 | Parker Shirley M | Tulsa, OK 74136 | Oil Operator | Jun 2013 |
| 4572 | Parkinsol Oil Company | Seminole, OK 74868-1648 | Oil & Gas Operator | Oct 2014 |
| 4573 | Parks Bill M | Seminole, OK 74818-1648 | Oil & Gas Operator | Apr 2014 |
| 4574 | Parks Jack Concrete Co | Hominy, OK 74035 | Oil Operator | Jan 2025 |
| 4575 | Parks James L | Edmond, OK 73034 | Oil & Gas Operator | Aug 2005 |
| 4576 | Parks Tex M Trust | Dallas, TX 75220-3864 | Oil Operator | Aug 2017 |
| 4577 | Parkway Petroleum, Inc. | Giddings, TX 78942 | Oil & Gas Operator | Jul 1997 |
| 4578 | Parrish Jr W F | Ardmore, OK 73401-2941 | Oil & Gas Operator | Jan 2025 |
| 4579 | Parsage Oil Co | Tulsa, OK 74170 | Oil & Gas Operator | Jan 2025 |
| 4580 | Parsons Engineering Corporation | Tulsa, OK 74137-7505 | Oil & Gas Operator | Oct 2017 |
| 4581 | Partners Oil Company | Tulsa, OK 74135 | Oil & Gas Operator | Aug 1995 |
| 4582 | Parwest Land Exploration, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Jan 2025 |
| 4583 | Pasco Oil Company | Oklahoma City, OK 73172-0454 | Oil & Gas Operator | Aug 2000 |
| 4584 | Paso-Grande Inc | Phoenix, AZ 85018 | Gas Operator | Jan 2007 |
| 4585 | Passmore Robert W | Ada, OK 74820-5501 | Oil & Gas Operator | May 2022 |
| 4586 | Patco Investments Inc | Seminole, OK 74868 | Oil Operator | Nov 2007 |
| 4587 | Pathfinder Exploration LLC | Norman, OK 73069-8516 | Gas Operator | Aug 2003 |
| 4588 | Patina Oil & Gas Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2016 |
| 4589 | Patina Oklahoma Corp | Duncan, OK 73533-9523 | Oil & Gas Operator | Nov 2014 |
| 4590 | Patrick Exploration Company | Tulsa, OK 74136 | Oil & Gas Operator | Apr 2011 |
| 4591 | Patrick Petroleum Co. | Jackson, MI 49201 | Oil & Gas Operator | Nov 1993 |
| 4592 | Patrick R J & Jack H Vaughn | Oklahoma City, OK 73154 | Oil & Gas Operator | Feb 2002 |
| 4593 | Patrick RJ Operating Co | Liberal, KS 67905-1157 | Oil & Gas Operator | Nov 2014 |
| 4594 | Patriot Petroleum Co LLC | Coppell, TX 75019-4216 | Oil & Gas Operator | Jan 2013 |
| 4595 | Patriot Petroleum Company | Bethany, OK 73008 | Oil & Gas Operator | Mar 2015 |
| 4596 | Patron Energy LLC | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2015 |
| 4597 | Patterson & Patterson Oil Co | Cushing, OK 74023 | Oil Operator | Aug 1995 |
| 4598 | Patterson Bob E | | Oil & Gas Operator | Jul 1993 |
| 4599 | Patterson Bobby Ray | Haskell, OK 74436-8809 | Oil & Gas Operator | Apr 2020 |
| 4600 | Patterson Eddy L | Tulsa, OK 74133 | Oil & Gas Operator | Feb 2022 |