| 1 | P. R. L. Oil Company | Albany, TX 76430 | Oil & Gas Operator | Apr 2008 |
| 2 | P.B. Blue Dot Properties | Wexford, PA 15090 | Oil & Gas Operator | Jun 2026 |
| 3 | P.I.D. Drilling Inc | Clyde, TX 79510 | Oil & Gas Operator | Jun 2026 |
| 4 | Pace Oil And Gas Company | Austin, TX 78715 | Oil & Gas Operator | Jun 2026 |
| 5 | Pace Operating | Abilene, TX 79608 | Oil & Gas Operator | Jun 2026 |
| 6 | Pace West Production LC | San Angelo, TX 76904 | Oil & Gas Operator | Sep 1995 |
| 7 | Palo Petroleum, Inc. | Dallas, TX 75360 | Oil & Gas Operator | Jun 2026 |
| 8 | Pan Petroleum Corp. | Abilene, TX 79608 | Oil & Gas Operator | Mar 2008 |
| 9 | Paragon Corporation | Abilene, TX 79604 | Oil & Gas Operator | Jun 2026 |
| 10 | Paragon Oil & Gas, LLC | Aledo, TX 76008 | Oil & Gas Operator | Jun 2026 |
| 11 | Pardue Oil | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 2006 |
| 12 | Park & Park Oil Co. | Allen, TX 75002 | Oil & Gas Operator | Jun 2026 |
| 13 | Parker Operating Co., Inc. | Aledo, TX 76008 | Oil & Gas Operator | Sep 2000 |
| 14 | Patterson Oil Company, The | Eastland, TX 76448 | Oil & Gas Operator | Mar 2026 |
| 15 | Patton, E. N. Oil Company, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Jun 2026 |
| 16 | Payne Petroleum | Abilene, TX 79604 | Oil & Gas Operator | Jun 2026 |
| 17 | Peak Pipeline Company | Plano, TX 75093 | Oil & Gas Operator | Oct 2007 |
| 18 | Pendragon Oil Co. | Fort Worth, TX 76116 | Oil & Gas Operator | Jun 2026 |
| 19 | Permian Surveys | Midland, TX 79707 | Oil & Gas Operator | Oct 1999 |
| 20 | Petex | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2026 |
| 21 | Petro-Beth Oil & Gas, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2006 |
| 22 | Petrogulf Corporation | Denver, CO 80202 | Oil & Gas Operator | Jun 2026 |
| 23 | Petrotex, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Aug 2003 |
| 24 | Pillans, Benjamin P. | Abilene, TX 79605 | Gas Operator | Aug 2012 |
| 25 | Pintail Production Co., Inc. | Fort Worth, TX 76132 | Oil & Gas Operator | Jun 2026 |
| 26 | Pitcock, Inc. | Graham, TX 76450 | Oil & Gas Operator | Jun 2026 |
| 27 | Plantation Operating, LLC | Houston, TX 77041 | Oil & Gas Operator | Nov 2011 |
| 28 | Plateau Energy, LLC | Smyer, TX 79367 | Oil & Gas Operator | Dec 2024 |
| 29 | PM Oil & Gas, Inc. | San Angelo, TX 76903 | Oil Operator | Jun 2026 |
| 30 | Porter, E. J. | Mingus, TX 76463 | Gas Operator | Jan 2011 |
| 31 | Powell Properties, Inc. | Los Altos, CA 94024 | Oil & Gas Operator | Jun 2026 |
| 32 | Powell, A. Brandt | Coleman, TX 76834 | Oil & Gas Operator | Mar 1999 |
| 33 | Premier Royalties, L.L.C. | Abilene, TX 79608 | Oil & Gas Operator | Jun 2026 |
| 34 | Prickly Pair Production | Albany, TX 76430 | Oil & Gas Operator | Jun 2026 |
| 35 | Principal Oil Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2002 |
| 36 | Privateer Energy LLC | Warren, NJ 07059 | Oil Operator | Jun 2026 |
| 37 | Pro Oil & Gas Inc | Frankfort, IL 60423 | Oil & Gas Operator | May 2014 |
| 38 | Probe Exploration Company | Abilene, TX 79605 | Oil & Gas Operator | Jun 2026 |
| 39 | Production Marketing Assoc Inc | Plano, TX 75075 | Oil & Gas Operator | Jun 2026 |
| 40 | Prospecta Energy Group, Inc. | Brownwood, TX 76801 | Oil Operator | Jun 2026 |
| 41 | Pryor, Curtis | Lubbock, TX 79424 | Oil & Gas Operator | Dec 1998 |
| 42 | Putnam Oil Production | Abilene, TX 79603 | Oil & Gas Operator | Jun 2002 |
| 43 | Pyramid Production Co. | Abilene, TX 79608 | Oil & Gas Operator | Jun 1994 |