| 1 | P-Tex Petroleum, Inc. | Dallas, TX 75238 | Oil & Gas Operator | Nov 1999 |
| 2 | P.B. Blue Dot Properties | Wexford, PA 15090 | Oil & Gas Operator | Sep 2026 |
| 3 | Pace Petroleum Company | Dallas, TX 75206 | Oil & Gas Operator | Sep 2026 |
| 4 | Palo Petroleum, Inc. | Dallas, TX 75360 | Oil & Gas Operator | Sep 2026 |
| 5 | Pan Petroleum Corp. | Abilene, TX 79608 | Oil & Gas Operator | Mar 2008 |
| 6 | Pan Western Energy Corporation | Tulsa, OK 74114 | Oil & Gas Operator | Sep 2026 |
| 7 | Parabellum Energy Oper Co, LLC | Houston, TX 77056 | Oil Operator | Dec 2017 |
| 8 | Paragon Corporation | Abilene, TX 79604 | Oil & Gas Operator | Sep 2026 |
| 9 | Parallel Petroleum Corporation | Midland, TX 79702 | Oil & Gas Operator | Jan 2010 |
| 10 | Parker Operating Co., Inc. | Aledo, TX 76008 | Oil & Gas Operator | Sep 2000 |
| 11 | Patriot Services, Inc. | Westbrook, TX 79565 | Oil & Gas Operator | Mar 2008 |
| 12 | Patton Coleman Exploration Inc. | Abilene, TX 79604 | Oil & Gas Operator | Sep 2026 |
| 13 | Patton Exploration, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Sep 2026 |
| 14 | Ped Oil Corporation | Midland, TX 79702 | Oil & Gas Operator | Sep 2026 |
| 15 | Penntex Resources, L.P. | State College, PA 16803 | Oil & Gas Operator | Mar 2016 |
| 16 | Petro 2000 Exploration Co. | Katy, TX 77450 | Oil & Gas Operator | Nov 2011 |
| 17 | Petro-Beth Oil & Gas, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2006 |
| 18 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
| 19 | Petroleum Capital, L.C. | Dallas, TX 75367 | Oil & Gas Operator | Sep 2026 |
| 20 | Petrotex, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Aug 2003 |
| 21 | Pillows, Burl A. | Houston, TX 77062 | Oil & Gas Operator | Sep 2026 |
| 22 | Pinon Petroleum, Inc. | San Angelo, TX 76903 | Oil & Gas Operator | Apr 2004 |
| 23 | Pioneer Exploration, LLC | Houston, TX 77090 | Oil & Gas Operator | Jul 2026 |
| 24 | Pioneer Exploration, LTD. | Houston, TX 77090 | Oil & Gas Operator | Sep 2008 |
| 25 | Pitcock, Inc. | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 26 | Pittencrieff America Inc | Abilene, TX 79608 | Oil & Gas Operator | Feb 2003 |
| 27 | Pitts, Charles Company | Abilene, TX 79604 | Oil & Gas Operator | Dec 1997 |
| 28 | Place Oil And Gas Co. | Eastland, TX 76448 | Oil & Gas Operator | Sep 2026 |
| 29 | Plains Petroleum Operating Co | Denver, CO 80202 | Oil & Gas Operator | Dec 2014 |
| 30 | Plateau Energy, LLC | Smyer, TX 79367 | Oil & Gas Operator | Dec 2024 |
| 31 | PM Oil & Gas, Inc. | San Angelo, TX 76903 | Oil Operator | Sep 2026 |
| 32 | Pony Express Corporate Trust | Aledo, TX 76008 | Oil & Gas Operator | Sep 2026 |
| 33 | Powell, A. Brandt | Coleman, TX 76834 | Oil & Gas Operator | Mar 1999 |
| 34 | Powell, A. Brandt Co. | Hawley, TX 79525 | Oil & Gas Operator | Sep 2026 |
| 35 | Powell-McCarroll Partnership | Sachse, TX 75048 | Oil & Gas Operator | Sep 2026 |
| 36 | Powerline Energy Corporation | Arlington, TX 76015 | Oil & Gas Operator | Sep 2026 |
| 37 | Prairie Petroleum, Inc | Plano, TX 75093 | Oil & Gas Operator | May 1999 |
| 38 | Prairie Production | San Antonio, TX 78228 | Oil & Gas Operator | Sep 2026 |
| 39 | Precision Drilling Company, Inc. | Santa Anna, TX 76878 | Oil & Gas Operator | Nov 1995 |
| 40 | Premier Royalties, L.L.C. | Abilene, TX 79608 | Oil & Gas Operator | Sep 2026 |
| 41 | Progas Properties, Inc. | New Braunfels, TX 78132 | Oil & Gas Operator | Sep 2026 |
| 42 | Prospecta Energy Group, Inc. | Brownwood, TX 76801 | Oil Operator | Sep 2026 |
| 43 | Pyramid Production Co. | Abilene, TX 79608 | Oil & Gas Operator | Jun 1994 |