| 1 | P & H Vacuum Service | | Oil & Gas Operator | Jan 2024 |
| 2 | Pacific-Atlantic Oil Company, Inc. | | Oil & Gas Operator | Aug 2016 |
| 3 | Par Minerals Corporation | Shreveport, LA 71101 | Oil & Gas Operator | Apr 2024 |
| 4 | Parks Oil, LLC | Smackover, AR 71762 | Oil Operator | Feb 2024 |
| 5 | Pathfinder Exploration LLC | Norman, OK 73069-8516 | Gas Operator | Nov 2008 |
| 6 | Patterson Oil Company, The | Eastland, TX 76448 | Oil & Gas Operator | Feb 2024 |
| 7 | Penn VIrginia MC Energy, LLC | Tulsa, OK 74119 | Gas Operator | Jul 2009 |
| 8 | Perry, James D | El Dorado, AR 71730 | Oil Operator | Feb 2024 |
| 9 | Petro-Chem Operating Company, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Apr 2024 |
| 10 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
| 11 | Petroleum Development Company | Tulsa, OK 74103 | Oil & Gas Operator | Dec 2023 |
| 12 | Petroquest, LLC | El Dorado, AR 71730 | Oil & Gas Operator | Jan 2024 |
| 13 | Pharr, Billy W | Emerson, AR 71740 | Oil & Gas Operator | Feb 2024 |
| 14 | Phillips Energy, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2018 |
| 15 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 16 | Philmon, Doyle | Magazine, AR 72943 | Gas Operator | Jan 2024 |
| 17 | Phoenix Operating Company, Inc. | Shreveport, LA 71161 | Oil & Gas Operator | Mar 2015 |
| 18 | Pickens Company, Inc., The | Dallas, TX 75225 | Oil & Gas Operator | Feb 2024 |
| 19 | Pinnacle Operating Company, Inc. | Shreveport, LA 71135 | Oil & Gas Operator | Apr 2024 |
| 20 | Ploutos, LLC | | Oil Operator | May 2021 |
| 21 | Plummer, JD Operating Co., LLC | El Dorado, AR 71730 | Oil Operator | Oct 2023 |
| 22 | Potoco, LLC | | Gas Operator | Apr 2012 |
| 23 | Preston Interests Operating, LP | | Oil Operator | Mar 2017 |
| 24 | Prosper Oil & Gas,Inc. | Dallas, TX 75201 | Oil & Gas Operator | Apr 2024 |
| 25 | Providence Exploration & Production | | Gas Operator | Jan 2006 |
| 26 | Pruitt Tool Gas Department | | Gas Operator | Jan 2008 |