| 3401 | Pedernales Production, LP | Houston, TX 77057 | Oil & Gas Operator | Mar 2022 |
| 3402 | Pel-Tex - McMoran | | Oil & Gas Operator | Dec 1985 |
| 3403 | Pel-Tex Oil Company, Inc. | | Oil & Gas Operator | Jul 1995 |
| 3404 | Pel-Tex Oil Company, LLC | | Oil & Gas Operator | Nov 2010 |
| 3405 | Pel-Tex, Inc. | | Oil & Gas Operator | Jul 1985 |
| 3406 | Pelican Dome Exploration Inc. | Harahan, LA 70123 | Oil & Gas Operator | Aug 2000 |
| 3407 | Pelican Gas Prod. Assoc. | | Oil & Gas Operator | Oct 1987 |
| 3408 | Pelican Producing Co. | | Gas Operator | Nov 1992 |
| 3409 | Pelico Pipeline, LLC | | Oil Operator | Dec 2024 |
| 3410 | Pelto Oil Company | Houston, TX 77002 | Oil & Gas Operator | Nov 1998 |
| 3411 | Pend Oreille Oil & Gas Company | | Oil & Gas Operator | Sep 1989 |
| 3412 | Pengo Petroleum Inc | | Oil & Gas Operator | Dec 2013 |
| 3413 | Pengo Petroleum, Inc. & J.W.S. | | Oil & Gas Operator | Jul 1977 |
| 3414 | Pengo Producing Company | | Oil & Gas Operator | Mar 1987 |
| 3415 | Penn Resources, Inc. | Dallas, TX 75219 | Oil & Gas Operator | Sep 1987 |
| 3416 | Penn VIrginia Oil & Gas Corp | Houston, TX 77024 | Oil & Gas Operator | Dec 2023 |
| 3417 | Penn VIrginia Oil & Gas, L.P. | Houston, TX 77084 | Oil & Gas Operator | Nov 2022 |
| 3418 | Pennington Oil & Gas Int, LLC | | Oil & Gas Operator | Dec 2024 |
| 3419 | Pennington Operating Company, LLC | | Oil & Gas Operator | Jul 2020 |
| 3420 | Pennzenergy Explor & Prod LLC | | Oil & Gas Operator | Dec 1999 |
| 3421 | Pennzoil Company | Midland, TX 79710-0090 | Oil & Gas Operator | Mar 2000 |
| 3422 | Pennzoil E & P & M H Marr | | Oil & Gas Operator | Sep 1993 |
| 3423 | Pennzoil E & P Co - Arco | | Oil & Gas Operator | Dec 1993 |
| 3424 | Pennzoil E & P Co - Clark Oil | | Oil & Gas Operator | Apr 1980 |
| 3425 | Pennzoil E & P Co Et Al | | Oil & Gas Operator | Feb 1999 |
| 3426 | Pennzoil E & P Co-Sohio Et Al | | Oil & Gas Operator | Jun 1991 |
| 3427 | Pennzoil E & P Co-Sohio Petr | | Oil & Gas Operator | Feb 1999 |
| 3428 | Pennzoil Exploration & Production Co. | Carthage, TX 75633 | Oil & Gas Operator | Mar 2008 |
| 3429 | Pennzoil Petroleum Company | Houston, TX 77252 | Oil & Gas Operator | Nov 1999 |
| 3430 | Pentagon Petroleum, Inc. | | Oil & Gas Operator | Sep 1991 |
| 3431 | Penton And Penton | | Oil & Gas Operator | Jan 1983 |
| 3432 | Peoples Energy Prod.-TX, L.P. | Houston, TX 77002 | Oil & Gas Operator | Sep 2007 |
| 3433 | Perdido Energy Louisiana, LLC | | Oil & Gas Operator | Dec 2024 |
| 3434 | Perdura Energy L.L.C. | | Oil & Gas Operator | Apr 2018 |
| 3435 | Perdure Petroleum LLC | Allen, TX 75013 | Oil & Gas Operator | Oct 2021 |
| 3436 | Perenco LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2005 |
| 3437 | Perkins Oil Properties | | Oil & Gas Operator | Nov 2024 |
| 3438 | Permeator Corp. | | Oil Operator | Sep 1990 |
| 3439 | Perna Oil & Gas LLC | | Oil & Gas Operator | Nov 2024 |
| 3440 | Perry Point, Inc. | | Oil Operator | Mar 2022 |
| 3441 | Pesco | | Oil & Gas Operator | Oct 1984 |
| 3442 | Pete Caldwell Drilling Co.,Inc | | Oil & Gas Operator | Aug 1991 |
| 3443 | Peterman-Sturlese Et Al | | Oil & Gas Operator | Sep 1987 |
| 3444 | Petex | Breckenridge, TX 76424 | Oil & Gas Operator | May 2026 |
| 3445 | Petro "E", LLC | | Oil & Gas Operator | Feb 2010 |
| 3446 | Petro Energy Inc | Farmington, NM 87499 | Oil & Gas Operator | Sep 2025 |
| 3447 | Petro Harvester Operating Company, LLC | | Oil & Gas Operator | Nov 2022 |
| 3448 | Petro Ventures Inc | Oklahoma City, OK 73118 | Oil & Gas Operator | Dec 2019 |
| 3449 | Petro Vest, Inc. | Houston, TX 77046 | Oil & Gas Operator | Sep 2014 |
| 3450 | Petro-Assets Corporation | | Oil & Gas Operator | Feb 2000 |
| 3451 | Petro-Can, Inc. | | Oil & Gas Operator | Apr 1998 |
| 3452 | Petro-Chem Operating Company, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | May 2026 |
| 3453 | Petro-Guard Company, Inc. | Houston, TX 77057 | Oil & Gas Operator | Nov 2014 |
| 3454 | Petro-Guard Production,L.L.C. | Houston, TX 77063 | Oil & Gas Operator | Dec 2024 |
| 3455 | Petro-Hunt Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 2003 |
| 3456 | Petro-Hunt, L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | May 2026 |
| 3457 | Petro-Lewis Corp. | | Oil & Gas Operator | Feb 1994 |
| 3458 | Petro-Management Inc | | Oil Operator | Dec 1998 |
| 3459 | Petro-Search, Inc. | | Oil Operator | Jul 1992 |
| 3460 | Petro-Ventures, Inc. - Miss. | | Oil & Gas Operator | Apr 2009 |
| 3461 | Petrocana,Inc. | | Oil & Gas Operator | Aug 1993 |
| 3462 | Petrocorp | | Oil & Gas Operator | Nov 1992 |
| 3463 | Petrocorp Incorporated | Tulsa, OK 74170 | Oil & Gas Operator | Nov 2021 |
| 3464 | Petrodome Operating, LLC | Houston, TX 77265 | Oil & Gas Operator | May 2025 |
| 3465 | Petrofunds, Inc & Sunny South | | Oil & Gas Operator | Feb 1984 |
| 3466 | Petrofunds, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Jun 1996 |
| 3467 | Petrofunds, Inc. & Herd | | Oil & Gas Operator | Mar 1984 |
| 3468 | Petroglen Company, Inc. | | Oil & Gas Operator | Jul 1990 |
| 3469 | Petrogulf Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2026 |
| 3470 | Petrohawk Energy Corporation | Houston, TX 77002 | Oil & Gas Operator | Jun 2005 |
| 3471 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
| 3472 | Petrol Industries, Inc. | Shreveport, LA 71137 | Oil & Gas Operator | Jun 2012 |
| 3473 | Petroleum Capital, L.C. | Dallas, TX 75367 | Oil & Gas Operator | May 2026 |
| 3474 | Petroleum Corp Of Delaware The | | Oil & Gas Operator | May 1991 |
| 3475 | Petroleum Corporation Of Texas | Breckenridge, TX 76024 | Oil & Gas Operator | May 2002 |
| 3476 | Petroleum Engineers, Inc. | | Oil & Gas Operator | Jun 1983 |
| 3477 | Petroleum Exchange | | Oil & Gas Operator | Oct 1997 |
| 3478 | Petroleum Futures-Chapman Oil | | Oil & Gas Operator | Jul 1981 |
| 3479 | Petroleum Investments, Inc | Shreveport, LA 71101 | Oil & Gas Operator | Dec 1977 |
| 3480 | Petroleum Management Int'L, Inc. | Sugar Land, TX 77487 | Oil & Gas Operator | Oct 1993 |
| 3481 | Petroleum Production MGMT., Inc. | Kansas City, MO 64112 | Oil & Gas Operator | May 2026 |
| 3482 | Petroleum Properties MGMT Corp | | Oil & Gas Operator | Aug 1990 |
| 3483 | Petroleum Recovery & Expl Inc. | | Oil Operator | Oct 1984 |
| 3484 | Petroleum Resource MGMT Co TX | | Oil & Gas Operator | Sep 2020 |
| 3485 | Petroleum Resources MGMT Corp. | | Oil & Gas Operator | Mar 2002 |
| 3486 | Petroleum Venture Capitol Corp | | Oil Operator | Jun 1980 |
| 3487 | Petromark Resources Company | Tulsa, OK 74136 | Oil & Gas Operator | Sep 1993 |
| 3488 | Petrominerals Corp. | | Oil & Gas Operator | Dec 2003 |
| 3489 | Petroquest Energy, Inc. | Lafayette, LA 70505 | Oil & Gas Operator | Feb 2001 |
| 3490 | Petroquest Energy, L.L.C. | Lafayette, LA 70505 | Oil & Gas Operator | May 2026 |
| 3491 | Petroquest Exploration, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Mar 2008 |
| 3492 | Petroreal Inc. | Temple, TX 76503 | Oil & Gas Operator | May 2026 |
| 3493 | Petrosearch Operating Co, LLC | Denver, CO 80202 | Oil & Gas Operator | May 2026 |
| 3494 | Petrosil Resources Inc. | | Oil & Gas Operator | Oct 1981 |
| 3495 | Petrotex Engineering Company | Cypress, TX 77429 | Oil & Gas Operator | May 2026 |
| 3496 | Petrotex Louisiana Company | | Oil & Gas Operator | Aug 1998 |
| 3497 | Petrus Oil Company, L.P. | | Oil & Gas Operator | Dec 1989 |
| 3498 | Petrus Operating Co., Inc. | | Oil & Gas Operator | Dec 1986 |
| 3499 | Petsec Energy Inc. | | Oil & Gas Operator | Sep 2012 |
| 3500 | PF Operating Company | Wichita Falls, TX 76302 | Oil & Gas Operator | Aug 2003 |