| 3401 | Paul Gowan-Miss. Ventures | | Gas Operator | Jan 1990 |
| 3402 | Paul Guido | | Oil Operator | Oct 1998 |
| 3403 | Paul J. Ross | | Oil Operator | Dec 1986 |
| 3404 | Paul M. Toce | | Oil & Gas Operator | Jul 1984 |
| 3405 | Pawnee Oil And Gas, Inc. | Richardson, TX 75083 | Oil & Gas Operator | May 2023 |
| 3406 | Paxton Oil Company | | Oil & Gas Operator | Dec 2024 |
| 3407 | Paxton Petroleum, LTD. | | Oil & Gas Operator | May 1989 |
| 3408 | Pay Oil, L. L. C. | | Oil & Gas Operator | Jan 2025 |
| 3409 | Pay Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 3410 | Pay Ventures, L.L.C. | | Oil Operator | Dec 2024 |
| 3411 | Peachtree Production Co. | | Oil & Gas Operator | Mar 1981 |
| 3412 | Peak Operating Co. | | Oil & Gas Operator | Jul 2024 |
| 3413 | Pearl Resources Inc. | | Oil & Gas Operator | Jul 1990 |
| 3414 | Pecos Petroleum Company | Houston, TX 77057 | Oil & Gas Operator | Oct 1999 |
| 3415 | Pecos Western Corporation | | Gas Operator | Feb 1992 |
| 3416 | Pedernales Petroleum Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 3417 | Pedernales Production, LP | Houston, TX 77057 | Oil & Gas Operator | Mar 2022 |
| 3418 | Pel-Tex - McMoran | | Oil & Gas Operator | Dec 1985 |
| 3419 | Pel-Tex Oil Company, Inc. | | Oil & Gas Operator | Jul 1995 |
| 3420 | Pel-Tex Oil Company, LLC | | Oil & Gas Operator | Nov 2010 |
| 3421 | Pel-Tex, Inc. | | Oil & Gas Operator | Jul 1985 |
| 3422 | Pelican Dome Exploration Inc | Harahan, LA 70123 | Oil & Gas Operator | Aug 2000 |
| 3423 | Pelican Gas Prod. Assoc. | | Oil & Gas Operator | Oct 1987 |
| 3424 | Pelican Producing Co. | | Gas Operator | Nov 1992 |
| 3425 | Pelico Pipeline, LLC | | Oil Operator | Dec 2024 |
| 3426 | Pelto Oil Company | Houston, TX 77002 | Oil & Gas Operator | Nov 1998 |
| 3427 | Pend Oreille Oil & Gas Company | | Oil & Gas Operator | Sep 1989 |
| 3428 | Pengo Petroleum Inc | | Oil & Gas Operator | Dec 2013 |
| 3429 | Pengo Petroleum, Inc. & J.W.S. | | Oil & Gas Operator | Jul 1977 |
| 3430 | Pengo Producing Company | | Oil & Gas Operator | Mar 1987 |
| 3431 | Penn Resources, Inc. | | Oil & Gas Operator | Sep 1987 |
| 3432 | Penn VIrginia Oil & Gas Corp | Houston, TX 77024 | Oil & Gas Operator | Dec 2023 |
| 3433 | Penn VIrginia Oil & Gas, L.P. | Houston, TX 77084 | Oil & Gas Operator | Nov 2022 |
| 3434 | Pennington Oil & Gas Int, LLC | | Oil & Gas Operator | Dec 2024 |
| 3435 | Pennington Operating Company, LLC | | Oil & Gas Operator | Jul 2020 |
| 3436 | Pennzenergy Explor & Prod LLC | | Oil & Gas Operator | Dec 1999 |
| 3437 | Pennzoil Company | Midland, TX 79710-0090 | Oil & Gas Operator | Mar 2000 |
| 3438 | Pennzoil E & P & M H Marr | | Oil & Gas Operator | Sep 1993 |
| 3439 | Pennzoil E & P Co - Arco | | Oil & Gas Operator | Dec 1993 |
| 3440 | Pennzoil E & P Co - Clark Oil | | Oil & Gas Operator | Apr 1980 |
| 3441 | Pennzoil E & P Co Et Al | | Oil & Gas Operator | Feb 1999 |
| 3442 | Pennzoil E & P Co-Sohio Et Al | | Oil & Gas Operator | Jun 1991 |
| 3443 | Pennzoil E & P Co-Sohio Petr | | Oil & Gas Operator | Feb 1999 |
| 3444 | Pennzoil Exploration & Production Co. | Carthage, TX 75633 | Oil & Gas Operator | Mar 2008 |
| 3445 | Pennzoil Petroleum Company | Houston, TX 77252 | Oil & Gas Operator | Nov 1999 |
| 3446 | Pentagon Petroleum, Inc. | | Oil & Gas Operator | Sep 1991 |
| 3447 | Penton And Penton | | Oil & Gas Operator | Jan 1983 |
| 3448 | Peoples Energy Prod.-TX, L.P. | Houston, TX 77002 | Oil & Gas Operator | Sep 2007 |
| 3449 | Perdido Energy Louisiana, LLC | | Oil & Gas Operator | Dec 2024 |
| 3450 | Perdura Energy L.L.C. | | Oil & Gas Operator | Apr 2018 |
| 3451 | Perdure Petroleum LLC | Allen, TX 75013 | Oil & Gas Operator | Oct 2021 |
| 3452 | Perenco LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2005 |
| 3453 | Perkins Oil Properties | | Oil & Gas Operator | Nov 2024 |
| 3454 | Permeator Corp. | | Oil Operator | Sep 1990 |
| 3455 | Perna Oil & Gas LLC | | Oil & Gas Operator | Nov 2024 |
| 3456 | Perry Point, Inc. | | Oil Operator | Mar 2022 |
| 3457 | Pesco | | Oil & Gas Operator | Oct 1984 |
| 3458 | Pete Caldwell Drilling Co.,Inc | | Oil & Gas Operator | Aug 1991 |
| 3459 | Peterman-Sturlese Et Al | | Oil & Gas Operator | Sep 1987 |
| 3460 | Petex | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 2026 |
| 3461 | Petro "E", LLC | | Oil & Gas Operator | Feb 2010 |
| 3462 | Petro Energy Inc | Farmington, NM 87499 | Oil & Gas Operator | Sep 2025 |
| 3463 | Petro Harvester Operating Company, LLC | | Oil & Gas Operator | Nov 2022 |
| 3464 | Petro Ventures Inc | Oklahoma City, OK 73118 | Oil & Gas Operator | Dec 2019 |
| 3465 | Petro Vest, Inc. | Houston, TX 77046 | Oil & Gas Operator | Sep 2014 |
| 3466 | Petro-Assets Corporation | | Oil & Gas Operator | Feb 2000 |
| 3467 | Petro-Can, Inc. | | Oil & Gas Operator | Apr 1998 |
| 3468 | Petro-Chem Operating Company, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Sep 2026 |
| 3469 | Petro-Guard Company, Inc. | Houston, TX 77057 | Oil & Gas Operator | Nov 2014 |
| 3470 | Petro-Guard Production,L.L.C. | Houston, TX 77063 | Oil & Gas Operator | Dec 2024 |
| 3471 | Petro-Hunt Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 2003 |
| 3472 | Petro-Hunt, L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | Sep 2026 |
| 3473 | Petro-Lewis Corp. | | Oil & Gas Operator | Feb 1994 |
| 3474 | Petro-Management Inc | | Oil Operator | Dec 1998 |
| 3475 | Petro-Ventures, Inc. - Miss. | | Oil & Gas Operator | Apr 2009 |
| 3476 | Petrocana,Inc. | | Oil & Gas Operator | Aug 1993 |
| 3477 | Petrocorp | | Oil & Gas Operator | Nov 1992 |
| 3478 | Petrocorp Incorporated | Tulsa, OK 74170 | Oil & Gas Operator | Nov 2021 |
| 3479 | Petrodome Operating, LLC | Houston, TX 77265 | Oil & Gas Operator | Sep 2024 |
| 3480 | Petrofunds, Inc & Sunny South | | Oil & Gas Operator | Feb 1984 |
| 3481 | Petrofunds, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Jun 1996 |
| 3482 | Petrofunds, Inc. & Herd | | Oil & Gas Operator | Mar 1984 |
| 3483 | Petroglen Company, Inc. | | Oil & Gas Operator | Jul 1990 |
| 3484 | Petrogulf Corporation | Denver, CO 80202 | Oil & Gas Operator | Sep 2026 |
| 3485 | Petrohawk Energy Corporation | Houston, TX 77002 | Oil & Gas Operator | Jun 2005 |
| 3486 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
| 3487 | Petrol Industries, Inc. | Shreveport, LA 71137 | Oil & Gas Operator | Jun 2012 |
| 3488 | Petroleum Capital, L.C. | Dallas, TX 75367 | Oil & Gas Operator | Sep 2026 |
| 3489 | Petroleum Corp Of Delaware The | | Oil & Gas Operator | May 1991 |
| 3490 | Petroleum Corporation Of Texas | Breckenridge, TX 76024 | Oil & Gas Operator | May 2002 |
| 3491 | Petroleum Engineers, Inc. | | Oil & Gas Operator | Jun 1983 |
| 3492 | Petroleum Exchange | | Oil & Gas Operator | Oct 1997 |
| 3493 | Petroleum Futures-Chapman Oil | | Oil & Gas Operator | Jul 1981 |
| 3494 | Petroleum Investments, Inc | Shreveport, LA 71101 | Oil & Gas Operator | Dec 1977 |
| 3495 | Petroleum Management Int'L, Inc. | Sugar Land, TX 77487 | Oil & Gas Operator | Oct 1993 |
| 3496 | Petroleum Production MGMT., Inc. | Kansas City, MO 64112 | Oil & Gas Operator | Sep 2026 |
| 3497 | Petroleum Properties MGMT Corp | | Oil & Gas Operator | Aug 1990 |
| 3498 | Petroleum Recovery & Expl Inc. | | Oil Operator | Oct 1984 |
| 3499 | Petroleum Resource MGMT Co TX | | Oil & Gas Operator | Sep 2020 |
| 3500 | Petroleum Resources MGMT Corp. | | Oil & Gas Operator | Mar 2002 |