| 8401 | Petrosource Energy Corporation | Fort Worth, TX 76112 | Oil & Gas Operator | Jun 2026 |
| 8402 | Petrosource Production Co. L.P. | Midland, TX 79701 | Oil & Gas Operator | Nov 2007 |
| 8403 | Petrosource Production Co., LLC | Midland, TX 79705 | Oil & Gas Operator | Jun 2026 |
| 8404 | Petrotec LLC | The Woodlands, TX 77382 | Oil & Gas Operator | Feb 2017 |
| 8405 | Petrotex Engineering Company | Cypress, TX 77429 | Oil & Gas Operator | Jun 2026 |
| 8406 | Petrotex, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Aug 2003 |
| 8407 | Petrotx Operating, LLC | Kingwood, TX 77339 | Oil & Gas Operator | Jun 2026 |
| 8408 | Petrovybe Opco LLC | Plano, TX 75093 | Oil & Gas Operator | Jun 2026 |
| 8409 | Petrox Resources Inc | Meeker, CO 81641 | Oil & Gas Operator | Apr 2026 |
| 8410 | Petx Operating LLC | Midland, TX 79702 | Oil & Gas Operator | Jun 2026 |
| 8411 | PF Operating Company | Wichita Falls, TX 76302 | Oil & Gas Operator | Aug 2003 |
| 8412 | Pfed Operating | Keller, TX 76248 | Oil Operator | Jun 2026 |
| 8413 | Pfog Operations, LLC | Midland, TX 79710 | Oil Operator | Jun 2026 |
| 8414 | PG&E Resources Company | Houston, TX 77042 | Oil & Gas Operator | May 1995 |
| 8415 | PG&E Resources Offshore Company | Dallas, TX 75206 | Oil & Gas Operator | Oct 1994 |
| 8416 | PG-M International Operating,LLC | Borger, TX 79008 | Oil & Gas Operator | Jun 2026 |
| 8417 | Pgi Operating, LLC | Sweetwater, TX 79556 | Oil Operator | Jun 2026 |
| 8418 | Pgo, Inc. | Houston, TX 77042 | Oil & Gas Operator | Jun 1999 |
| 8419 | PH Exploration, Inc. | Houston, TX 77008 | Oil & Gas Operator | Nov 2001 |
| 8420 | Pharaoh & Associates, Inc. | Houston, TX 77252 | Oil & Gas Operator | Aug 2002 |
| 8421 | Pharaoh Oil & Gas, Inc. | MC Camey, TX 79752 | Oil & Gas Operator | Jun 2026 |
| 8422 | Phaw LLC | Seguin, TX 78155 | Oil Operator | Jun 2026 |
| 8423 | Pheffer Oil, L.L.C. | Laredo, TX 78041 | Oil Operator | Jul 2021 |
| 8424 | Phere Operating Inc | Spring Branch, TX 78070 | Oil & Gas Operator | Jun 2026 |
| 8425 | Philcon Development Co. | Amarillo, TX 79101 | Oil & Gas Operator | Sep 2014 |
| 8426 | Phillips & Pierson | Olney, TX 76374 | Oil & Gas Operator | Nov 1995 |
| 8427 | Phillips Energy, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2018 |
| 8428 | Phillips Operating Co. | Mineral Wells, TX 76067 | Oil & Gas Operator | Jan 2013 |
| 8429 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 8430 | Phillips, B. F. Jr., Estate Of | Dallas, TX 75201 | Oil & Gas Operator | Mar 2011 |
| 8431 | Phillips, Bob | Weatherford, TX 76086 | Oil & Gas Operator | Nov 2019 |
| 8432 | Phillips, Jack L. | Gladewater, TX 75647 | Oil & Gas Operator | Dec 1997 |
| 8433 | Phillips, Jack L. Co. | Gladewater, TX 75647 | Oil & Gas Operator | Jun 2026 |
| 8434 | Philmar | Houston, TX 77269 | Oil Operator | Jun 2026 |
| 8435 | Philpott Oil & Gas Co Inc | Atwood, KS 67730 | Oil Operator | Aug 2010 |
| 8436 | Phoenix Crude Oil Company | Westbrook, TX 79565 | Oil Operator | Oct 2004 |
| 8437 | Phoenix Fund, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Jun 2000 |
| 8438 | Phoenix Hydrocarbons Operating | Midland, TX 79702 | Oil & Gas Operator | Jun 2024 |
| 8439 | Phoenix Oil & Gas | Graham, TX 76450 | Oil & Gas Operator | Jun 2026 |
| 8440 | Phoenix Oil & Gas LTD., L.L.P. | Houston, TX 77010 | Oil & Gas Operator | Jun 2004 |
| 8441 | Phoenix Oil & Gas, Inc. (A) | Canada, 00100 | Oil & Gas Operator | Oct 2005 |
| 8442 | Phoenix Operating Company Of TX. | Dallas, TX 75206 | Oil & Gas Operator | Jun 1995 |
| 8443 | Phoenix Operating Company, Inc. | Shreveport, LA 71161 | Oil & Gas Operator | Mar 2015 |
| 8444 | Phoenix Petrocorp, Inc. | McKinney, TX 75070 | Oil & Gas Operator | Mar 2026 |
| 8445 | Phoenix Resources LLC | Longview, TX 75604 | Oil & Gas Operator | Jul 2022 |
| 8446 | Phylko Energy Corporation | Houston, TX 77056 | Oil & Gas Operator | Aug 2003 |
| 8447 | Pi Energy, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Jun 2026 |
| 8448 | Pickens Company, Inc., The | Dallas, TX 75225 | Oil & Gas Operator | Jan 2025 |
| 8449 | Pickett Oil Co. | Gonzales, TX 78629 | Oil & Gas Operator | Oct 2019 |
| 8450 | Pickett, D. W. | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Sep 2004 |
| 8451 | Picosa, L.L.C. | Carrizo SPGS, TX 78834 | Oil & Gas Operator | Jun 2026 |
| 8452 | Pie Operating, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2026 |
| 8453 | Piedra Operating, LLC | Denver, CO 80202 | Oil & Gas Operator | May 2023 |
| 8454 | Pierce Junction Petroleum Inc. | Houston, TX 77002 | Oil & Gas Operator | May 2010 |
| 8455 | Pierce Operating Company, L.L.C. | Bryan, TX 77808 | Oil & Gas Operator | Dec 2018 |
| 8456 | Pierce Production Company | Eunice, NM 88231 | Oil & Gas Operator | Oct 2012 |
| 8457 | Pierce Production Company, LLC | Midland, TX 79702 | Oil & Gas Operator | Jun 2026 |
| 8458 | Pierce, Ray A. | Eunice, NM 88231 | Oil & Gas Operator | Nov 2004 |
| 8459 | Pierco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Jun 2026 |
| 8460 | Pierre Petroleum Corp. | Borger, TX 79007 | Oil & Gas Operator | Feb 1997 |
| 8461 | Pikeco Inc | Whitesboro, TX 76273 | Oil & Gas Operator | Nov 2001 |
| 8462 | Pilgrim Energy Partners L.L.C. | Fairfield, IL 62837 | Oil Operator | Jun 2026 |
| 8463 | Pillans, Benjamin P. | Abilene, TX 79605 | Gas Operator | Aug 2012 |
| 8464 | Pillar Efs, LLC | Irving, TX 75039 | Oil & Gas Operator | Jun 2026 |
| 8465 | Pillar Energy, LLC | Charleston, WV 25312-5987 | Oil & Gas Operator | Dec 2025 |
| 8466 | Pillows, Burl A. | Houston, TX 77062 | Oil & Gas Operator | Jun 2026 |
| 8467 | Pima Energy, LLC | Knott, TX 79748 | Oil & Gas Operator | Jun 2026 |
| 8468 | Pine Creek Operating LLC | Colorado Spri, CO 80903 | Oil & Gas Operator | Jul 2021 |
| 8469 | Pine Island Operating, L.L.C. | Graham, TX 76450 | Oil & Gas Operator | Jun 2026 |
| 8470 | Pine Island Production Company | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Apr 2012 |
| 8471 | Pine Ridge Operating, L.P. | Waelder, TX 78959 | Oil & Gas Operator | Jun 2026 |
| 8472 | Pine Wave Energy Partners Op,LLC | Dallas, TX 75205 | Oil & Gas Operator | Jun 2026 |
| 8473 | Pinewood Exploration Inc. | Arlington, TX 76096 | Oil & Gas Operator | Oct 2011 |
| 8474 | Pinnacle Mining Corporation | Midland, TX 79708 | Oil & Gas Operator | Jun 2026 |
| 8475 | Pinnacle Operating Company, Inc. | Shreveport, LA 71135 | Oil & Gas Operator | Jun 2026 |
| 8476 | Pinon Corporation | San Antonio, TX 78266 | Oil & Gas Operator | Jul 2001 |
| 8477 | Pinon Operating, LLC | Midland, TX 79702 | Oil & Gas Operator | Sep 2023 |
| 8478 | Pinon Petroleum, Inc. | San Angelo, TX 76903 | Oil & Gas Operator | Apr 2004 |
| 8479 | Pintail Oil & Gas, LLC | Midland, TX 79702 | Oil & Gas Operator | Dec 2019 |
| 8480 | Pintail Production Co., Inc. | Fort Worth, TX 76132 | Oil & Gas Operator | Jun 2026 |
| 8481 | Pintex Operating Inc. | Corpus Chrsti, TX 78478 | Oil & Gas Operator | Feb 2005 |
| 8482 | Pioneer Energy Corporation | Dallas, TX 75204 | Oil & Gas Operator | Jun 2026 |
| 8483 | Pioneer Exploration Company | Houston, TX 77090 | Oil & Gas Operator | Mar 2026 |
| 8484 | Pioneer Exploration, LLC | Houston, TX 77090 | Oil & Gas Operator | Mar 2026 |
| 8485 | Pioneer Exploration, LTD. | Houston, TX 77090 | Oil & Gas Operator | Sep 2008 |
| 8486 | Pioneer Natural Res. (GPC), Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 1998 |
| 8487 | Pioneer Natural Res. USA, Inc. | Spring, TX 77389 | Oil & Gas Operator | Jun 2026 |
| 8488 | Pioneer Natural Resources USA Inc | Irving, TX 75039 | Oil & Gas Operator | Feb 2026 |
| 8489 | Pioneer Resources | Jefferson, CO 80456 | Oil Operator | Dec 2009 |
| 8490 | Pioneer Resources Prod LP | Irving, TX 75039-3745 | Oil & Gas Operator | Feb 2005 |
| 8491 | Pioneer Resources Producing, L.P | Irving, TX 75039 | Oil & Gas Operator | Feb 2001 |
| 8492 | Pipeline Management, Inc. | Lubbock, TX 79401 | Oil & Gas Operator | Dec 2002 |
| 8493 | Pipeline Resources, Inc. | Corpus Christ, TX 78412 | Gas Operator | Aug 2003 |
| 8494 | Pitchfork Investments, LLC | Amarillo, TX 79109 | Oil & Gas Operator | Jun 2026 |
| 8495 | Pitchfork Oil & Gas, Inc. | Orchard, TX 77464 | Oil & Gas Operator | Jun 2026 |
| 8496 | Pitco Investments, LTD. | Scottsdale, AZ 85261 | Oil & Gas Operator | Jan 2013 |
| 8497 | Pitcock, Inc. | Graham, TX 76450 | Oil & Gas Operator | Jun 2026 |
| 8498 | Pittencrieff (Gulf Coast), Inc. | Abilene, TX 79608 | Oil & Gas Operator | Sep 1998 |
| 8499 | Pittencrieff America Inc | Abilene, TX 79608 | Oil & Gas Operator | Feb 2003 |
| 8500 | Pitts Energy Co. | Midland, TX 79707 | Oil & Gas Operator | Jun 2026 |