| 4501 | Plumb Resources, Inc. | Houston, TX 77096 | Oil & Gas Operator | Jun 1998 |
| 4502 | Plummer Energy Inc | Pauls Valley, OK 73075-8663 | Oil & Gas Operator | Nov 2016 |
| 4503 | Plymouth Exploration LLC | Tulsa, OK 74119-1031 | Oil & Gas Operator | Dec 2025 |
| 4504 | PM Oil & Gas, Inc. | San Angelo, TX 76903 | Oil Operator | May 2026 |
| 4505 | PMD Oil Recovery LLC | Perry, OK 73077 | Oil & Gas Operator | Jan 2026 |
| 4506 | Poblano Energy LLC | Houston, TX 77024-2217 | Oil & Gas Operator | Feb 2026 |
| 4507 | Pogo Panhandle 2004, L.P. | Houston, TX 77002 | Oil & Gas Operator | Oct 2017 |
| 4508 | Pogo Producing Company LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2026 |
| 4509 | Pogue Randall | Ada, OK 74821-1547 | Oil & Gas Operator | Apr 2014 |
| 4510 | Polaris Energy Dev Co | Tulsa, OK 74135 | Oil & Gas Operator | Apr 2000 |
| 4511 | Polaris Petroleum Operations LLC | Branson West, MO 65737 | Oil & Gas Operator | May 2019 |
| 4512 | Pole Cat Oil Company | Sapulpa, OK 74067 | Oil Operator | Feb 2026 |
| 4513 | Pollard Jr G W | Okmulgee, OK 74447 | Oil & Gas Operator | Apr 2015 |
| 4514 | Pollok Energy LLC | Tulsa, OK 74159 | Oil & Gas Operator | Feb 2026 |
| 4515 | Polo Operating Inc | Oklahoma City, OK 73112 | Oil & Gas Operator | May 2006 |
| 4516 | Ponder Oil Producers LLC | Okemah, OK 74859 | Oil & Gas Operator | Sep 2025 |
| 4517 | Pontotoc Operations Inc | Dallas, TX 75225-1425 | Oil & Gas Operator | Jun 2017 |
| 4518 | Pool, Lloyd Operating | Sandia Park, NM 87047 | Gas Operator | Dec 2013 |
| 4519 | Poorboy Oil Inc | Velma, OK 73491 | Oil & Gas Operator | Jul 2022 |
| 4520 | Pope Charles Edward | Morris, OK 74445 | Oil & Gas Operator | Mar 2023 |
| 4521 | Pope Oil LLC | Morris, OK 74445 | Oil Operator | Jan 2026 |
| 4522 | Pope Ted & Karen Dba MP Operating | Bristow, OK 74010 | Oil Operator | Feb 2026 |
| 4523 | Portal Energy Corporation | Dallas, TX 75201 | Oil & Gas Operator | Mar 1993 |
| 4524 | Porter John B | Ketchum, OK 74349-0207 | Oil & Gas Operator | May 2000 |
| 4525 | Porter John E "Gene" | Cushing, OK 74023 | Oil & Gas Operator | Aug 2000 |
| 4526 | Porter Oil And Gas Inc | Fort Smith, AR 72903-6906 | Oil & Gas Operator | Jan 2026 |
| 4527 | Porter Tom & John | Boynton, OK 74422 | Oil & Gas Operator | Dec 2025 |
| 4528 | Portfolio Oil Corporation | Oklahoma City, OK 73119 | Oil & Gas Operator | May 2013 |
| 4529 | Positive Energy LLC | Ada, OK 74820 | Oil & Gas Operator | Jan 2026 |
| 4530 | Post Oak Oil Company | Oklahoma City, OK 73112 | Oil & Gas Operator | Jul 2013 |
| 4531 | Post Petroleum Company | Oklahoma City, OK 73116 | Oil & Gas Operator | Aug 2013 |
| 4532 | Postrock Midcontinent Production LLC | Oklahoma City, OK 73101 | Oil & Gas Operator | Jan 2026 |
| 4533 | Potter Hammill & Potter Inc. | Beggs, OK 74421-0038 | Oil Operator | Aug 2013 |
| 4534 | Potter J And D Oil LLC | Kingfisher, OK 73750-3832 | Oil & Gas Operator | Mar 2015 |
| 4535 | Potter Tom Estate | | Oil Operator | Dec 2014 |
| 4536 | Potts Exploration LLC | Oklahoma City, OK 73114 | Gas Operator | Jan 2016 |
| 4537 | Pound Robert M | Bristow, OK 74010 | Oil & Gas Operator | Sep 2014 |
| 4538 | Powell James S | Cleveland, OK 74020 | Oil Operator | Feb 2026 |
| 4539 | Powell Jess L | Sapulpa, OK 74066 | Oil & Gas Operator | Dec 2025 |
| 4540 | Powell Oil | Healdton, OK 73438-4463 | Oil & Gas Operator | Jan 2026 |
| 4541 | Power Fuel Producers Inc | Keller, TX 76244-1059 | Oil & Gas Operator | Sep 2001 |
| 4542 | Powerline Energy Corporation | Arlington, TX 76015 | Oil & Gas Operator | May 2026 |
| 4543 | Powers Energy Inc | Denver, CO 80237-1926 | Oil & Gas Operator | Aug 1999 |
| 4544 | PPP Petroleum LP | Dallas, TX 75201-1585 | Oil & Gas Operator | Jan 2026 |
| 4545 | Prairie Exploration Company | Norman, OK 73072 | Oil & Gas Operator | Mar 2011 |
| 4546 | Prairie Wind Oil LLC | Blackwell, OK 74647-7242 | Oil & Gas Operator | Nov 2025 |
| 4547 | Prairiedale Energy Inc | Duncan, OK 73533-3657 | Oil & Gas Operator | Feb 2026 |
| 4548 | PRDJ Cockrum Enterprises, Inc. | Okemah, OK 74859-5126 | Oil & Gas Operator | Mar 2022 |
| 4549 | Pre-MC Inc | Allen, OK 74825 | Oil & Gas Operator | Jan 2026 |
| 4550 | Precision Operating Inc. | Richardson, TX 75080 | Oil & Gas Operator | Jul 2014 |
| 4551 | Pregler Oil Company LLC | Tulsa, OK 74119 | Oil & Gas Operator | Feb 2026 |
| 4552 | Premier Gas Company LLC | Durant, OK 74701 | Oil Operator | Dec 2025 |
| 4553 | Premier Oil & Gas LLC | Blanchard, OK 73010-2010 | Oil Operator | Dec 2022 |
| 4554 | Premier Resources LTD | Denver, CO 80237 | Oil & Gas Operator | Jul 2002 |
| 4555 | Prenalta Corporation | Terrytown, NY 10591 | Oil & Gas Operator | Jan 1997 |
| 4556 | Prentice Benny P | Allen, OK 74825-0247 | Oil & Gas Operator | Feb 2007 |
| 4557 | Prentice Bradley L | Allen, OK 74825 | Oil & Gas Operator | Jan 2026 |
| 4558 | Prentice Bro Oil Operators | Allen, OK 74825 | Oil & Gas Operator | Apr 2014 |
| 4559 | Prentice Ed | Allen, OK 74825 | Oil & Gas Operator | Dec 2025 |
| 4560 | Prentice, Napier & Green, Inc. | Oklahoma City, OK 73142 | Oil & Gas Operator | Feb 2026 |
| 4561 | Presco Inc | The Woodlands, TX 77380 | Oil & Gas Operator | Oct 2020 |
| 4562 | Presidio Energy Inc | | Oil & Gas Operator | Jan 1992 |
| 4563 | Presidio Petroleum LLC | Canadian, TX 79014 | Oil & Gas Operator | May 2026 |
| 4564 | Presley Operating LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2026 |
| 4565 | Presley Petroleum Company | Newport Beach, CA 92658-2200 | Oil & Gas Operator | Oct 1999 |
| 4566 | Pressure Pumping Services LLC | Blackwell, OK 74631-2466 | Oil & Gas Operator | Feb 2026 |
| 4567 | Preston Carter Oil Company | Davis, OK 73030 | Oil & Gas Operator | Jan 2026 |
| 4568 | Preston Oil Co | Woodlands, TX 77380 | Oil & Gas Operator | Dec 2009 |
| 4569 | Pri Producing Inc | Houston, TX 77002 | Oil & Gas Operator | Jan 2006 |
| 4570 | Priam Operating Company | Tulsa, OK 74114 | Oil & Gas Operator | Jul 2022 |
| 4571 | Price Brothers Oil Co | Duncan, OK 73533 | Oil Operator | Feb 1996 |
| 4572 | Price J R Inc | Addington, OK 73520-0099 | Oil & Gas Operator | Apr 2015 |
| 4573 | Price Operating Company Inc | Nowata, OK 74048 | Oil & Gas Operator | Mar 2020 |
| 4574 | Price, W. H. | Granbury, TX 76048 | Oil & Gas Operator | Jun 2024 |
| 4575 | Pricor-TRC Corporation | Mounds, OK 74047 | Oil & Gas Operator | May 2013 |
| 4576 | Pride Energy Company | Tulsa, OK 74170 | Oil & Gas Operator | May 2026 |
| 4577 | Primary Fuels Inc | Midland, TX 79701-4410 | Oil & Gas Operator | Mar 1991 |
| 4578 | Primary Natural Resources III LLC | Tulsa, OK 74136-6351 | Oil & Gas Operator | Jan 2026 |
| 4579 | Primary Natural Resources Inc. | Tulsa, OK 74136-6351 | Oil & Gas Operator | Mar 2023 |
| 4580 | Prime Energy Corp | Charleston, WV 25301-1707 | Oil & Gas Operator | Sep 2015 |
| 4581 | Prime Operating Company | Midland, TX 79705 | Oil & Gas Operator | May 2026 |
| 4582 | Primexx Operating Corporation | Dallas, TX 75206 | Oil & Gas Operator | Mar 2024 |
| 4583 | Primrose Jimmie | | Oil Operator | Feb 1998 |
| 4584 | Primrose Operating Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Jun 2007 |
| 4585 | Prince Brothers Drilling Co | Electra, TX 76360 | Oil & Gas Operator | Apr 2015 |
| 4586 | Princess Three Corporation | Henderson, TX 75653 | Oil & Gas Operator | Apr 2020 |
| 4587 | Princess Three Operating, LLC | Henderson, TX 75653 | Oil & Gas Operator | May 2026 |
| 4588 | Pringle Operating Co. | Tulsa, OK 74103 | Oil & Gas Operator | Aug 2015 |
| 4589 | Priority Holdings LLC | Marlow, OK 73055 | Oil Operator | Jan 2026 |
| 4590 | Prize Operating Company | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2016 |
| 4591 | Pro-Energy Inc | Tulsa, OK 74136-5925 | Oil Operator | Jan 2026 |
| 4592 | Proctor Dale & Mildred | Wetumka, OK 74883-6272 | Gas Operator | Jan 2026 |
| 4593 | Producers Oil Company | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2007 |
| 4594 | Producers Operating Co Inc | Amarillo, TX 79105 | Oil & Gas Operator | May 2026 |
| 4595 | Proex Energy Management, L.L.C. | Spring, TX 77386 | Oil & Gas Operator | May 2026 |
| 4596 | Prompt Operating LLC | Velma, OK 73491 | Oil Operator | Dec 2025 |
| 4597 | Prospect Enterprises Inc | Wetumka, OK 74883-0068 | Oil & Gas Operator | Apr 2004 |
| 4598 | Prospective Investment & Trading | Scottsdale, AZ 85261-4190 | Oil & Gas Operator | Jun 2016 |
| 4599 | Prosper Oil & Gas,Inc. | Dallas, TX 75201 | Oil & Gas Operator | May 2026 |
| 4600 | Prosperous Oil & Gas Inc | Okmulgee, OK 74447 | Oil & Gas Operator | Jan 2026 |