| 3401 | Petex | Breckenridge, TX 76424 | Oil & Gas Operator | May 2024 |
| 3402 | Petro "E", LLC | | Oil & Gas Operator | Feb 2010 |
| 3403 | Petro Energy Inc | Farmington, NM 87499 | Oil & Gas Operator | Jan 2024 |
| 3404 | Petro Harvester Operating Company, LLC | | Oil & Gas Operator | Nov 2022 |
| 3405 | Petro Ventures Inc | Oklahoma City, OK 73118 | Oil & Gas Operator | Dec 2019 |
| 3406 | Petro Vest, Inc. | Houston, TX 77046 | Oil & Gas Operator | Sep 2014 |
| 3407 | Petro-Assets Corporation | | Oil & Gas Operator | Feb 2000 |
| 3408 | Petro-Chem Operating Company, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | May 2024 |
| 3409 | Petro-Guard Company, Inc. | Houston, TX 77057 | Oil & Gas Operator | Nov 2014 |
| 3410 | Petro-Guard Production,L.L.C. | Houston, TX 77063 | Oil & Gas Operator | Dec 2023 |
| 3411 | Petro-Hunt Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jun 2003 |
| 3412 | Petro-Hunt, L.L.C. | Dallas, TX 75201 | Oil & Gas Operator | May 2024 |
| 3413 | Petro-Lewis Corp. | | Oil & Gas Operator | Feb 1994 |
| 3414 | Petro-Management Inc | | Oil Operator | Dec 1998 |
| 3415 | Petro-Ventures, Inc. - Miss. | | Oil & Gas Operator | Apr 2009 |
| 3416 | Petrocan, Inc. | | Oil & Gas Operator | Apr 1998 |
| 3417 | Petrocana,Inc. | | Oil & Gas Operator | Aug 1993 |
| 3418 | Petrocorp | | Oil & Gas Operator | Oct 1992 |
| 3419 | Petrocorp Incorporated | Tulsa, OK 74170 | Oil & Gas Operator | Nov 2021 |
| 3420 | Petrodome Operating, LLC | Houston, TX 77265 | Oil & Gas Operator | Jan 2024 |
| 3421 | Petrofunds, Inc & Sunny South | | Oil & Gas Operator | Feb 1984 |
| 3422 | Petrofunds, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Jun 1996 |
| 3423 | Petrofunds, Inc. & Herd | | Oil & Gas Operator | Mar 1984 |
| 3424 | Petroglen Company, Inc. | | Oil & Gas Operator | Jul 1990 |
| 3425 | Petrogulf Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2024 |
| 3426 | Petrohawk Energy Corporation | Houston, TX 77002 | Oil & Gas Operator | Jun 2005 |
| 3427 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
| 3428 | Petrol Industries, Inc. | Shreveport, LA 71137 | Oil & Gas Operator | Jun 2012 |
| 3429 | Petroleum Capital, L.C. | Dallas, TX 75367 | Oil & Gas Operator | May 2024 |
| 3430 | Petroleum Corp Of Delaware The | | Oil & Gas Operator | May 1991 |
| 3431 | Petroleum Corporation Of Texas | Breckenridge, TX 76024 | Oil & Gas Operator | May 2002 |
| 3432 | Petroleum Engineers, Inc. | | Oil & Gas Operator | Jun 1983 |
| 3433 | Petroleum Exchange | | Oil & Gas Operator | Oct 1997 |
| 3434 | Petroleum Futures-Chapman Oil | | Oil & Gas Operator | Jul 1981 |
| 3435 | Petroleum Investments, Inc | Shreveport, LA 71101 | Oil & Gas Operator | Dec 1977 |
| 3436 | Petroleum Management Int'L, Inc. | Sugar Land, TX 77487 | Oil & Gas Operator | Oct 1993 |
| 3437 | Petroleum Production MGMT., Inc. | Kansas City, MO 64112 | Oil & Gas Operator | May 2024 |
| 3438 | Petroleum Properties MGMT Corp | | Oil & Gas Operator | Aug 1990 |
| 3439 | Petroleum Recovery & Expl Inc. | | Oil Operator | Oct 1984 |
| 3440 | Petroleum Resource MGMT Co TX | | Oil & Gas Operator | Sep 2020 |
| 3441 | Petroleum Resources MGMT Corp. | | Oil & Gas Operator | Mar 2002 |
| 3442 | Petroleum Venture Capitol Corp | | Oil Operator | Jun 1980 |
| 3443 | Petromark Resources Company | Tulsa, OK 74136 | Oil & Gas Operator | Sep 1993 |
| 3444 | Petrominerals Corp. | | Oil & Gas Operator | Dec 2003 |
| 3445 | Petroquest Energy, Inc. | Lafayette, LA 70505 | Oil & Gas Operator | Feb 2001 |
| 3446 | Petroquest Energy, L.L.C. | Lafayette, LA 70505 | Oil & Gas Operator | May 2024 |
| 3447 | Petroquest Exploration, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Mar 2008 |
| 3448 | Petroreal Inc. | Temple, TX 76503 | Oil & Gas Operator | May 2024 |
| 3449 | Petrosearch Operating Co, LLC | Denver, CO 80202 | Oil & Gas Operator | May 2024 |
| 3450 | Petrosearch, Inc. | | Oil Operator | Jul 1992 |
| 3451 | Petrosil Resources Inc. | | Oil & Gas Operator | Oct 1981 |
| 3452 | Petrotex Engineering Company | Cypress, TX 77429 | Oil & Gas Operator | May 2024 |
| 3453 | Petrotex Louisiana Company | | Oil & Gas Operator | Aug 1998 |
| 3454 | Petrus Oil Company., L.P. | | Oil & Gas Operator | Dec 1989 |
| 3455 | Petrus Operating Co., Inc. | | Oil & Gas Operator | Dec 1986 |
| 3456 | Petsec Energy Inc. | | Oil & Gas Operator | Sep 2012 |
| 3457 | PF Operating Company | Wichita Falls, TX 76302 | Oil & Gas Operator | Aug 2003 |
| 3458 | PG&E Resources Company | Houston, TX 77042 | Oil & Gas Operator | May 1995 |
| 3459 | PG&E Resources Offshore Company | Dallas, TX 75206 | Oil & Gas Operator | Oct 1994 |
| 3460 | Phalanx Petroleum LLC | | Oil & Gas Operator | Dec 2023 |
| 3461 | Pharaoh & Associates, Inc. | Houston, TX 77252 | Oil & Gas Operator | Aug 2002 |
| 3462 | Pharaoh Oil & Gas, Inc. | MC Camey, TX 79752 | Oil & Gas Operator | May 2024 |
| 3463 | Pharaoh Oil, LLC | | Oil Operator | Jan 2024 |
| 3464 | Philip B. Berry Oper Co., Inc. | | Oil & Gas Operator | Jun 1990 |
| 3465 | Philip Services/Louisiana Inc. | | Oil Operator | Dec 2000 |
| 3466 | Phillberg Oil Company | | Oil Operator | Mar 2014 |
| 3467 | Phillip A Guzzino | | Oil Operator | Jan 2000 |
| 3468 | Phillips Energy, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2018 |
| 3469 | Phillips Lake Corp. | | Oil Operator | Dec 1985 |
| 3470 | Phillips Oil Company | Casper, WY 82602 | Oil & Gas Operator | Sep 1986 |
| 3471 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 3472 | Phoenic Opr Co Inc-SPD | | Oil Operator | Feb 1993 |
| 3473 | Phoenix - Comco, Inc. | | Oil Operator | Aug 2004 |
| 3474 | Phoenix Drilling & Exploration | | Oil & Gas Operator | Jun 1982 |
| 3475 | Phoenix Energy, Inc. | Oilmont, MT 59466 | Oil & Gas Operator | Dec 2023 |
| 3476 | Phoenix Exploration Company LP | | Oil & Gas Operator | Sep 2011 |
| 3477 | Phoenix Oil & Gas LTD., L.L.P. | Houston, TX 77010 | Oil & Gas Operator | Jun 2004 |
| 3478 | Phoenix Oper Co Inc-New Amer | | Oil Operator | Jul 1994 |
| 3479 | Phoenix Operating Co. Of Texas | | Oil Operator | Jul 1995 |
| 3480 | Phoenix Operating Company, Inc. | Shreveport, LA 71161 | Oil & Gas Operator | Mar 2015 |
| 3481 | Phoenix Opr Co Inc - West End | | Oil Operator | Dec 1992 |
| 3482 | Phoenix Opr Co Inc-Acc | | Oil Operator | Dec 1992 |
| 3483 | Phoenix Opr Co Inc-Amsterdam | | Oil Operator | Nov 1994 |
| 3484 | Phoenix Opr Co Inc-Broadway | | Oil Operator | Dec 1992 |
| 3485 | Phoenix Opr Co Inc-Caddo | | Oil Operator | Dec 1992 |
| 3486 | Phoenix Opr Co Inc-DS DRLG | | Oil Operator | May 1994 |
| 3487 | Phoenix Opr Co Inc-HGC 1985 | | Oil Operator | Dec 1992 |
| 3488 | Phoenix Opr Co Inc-La Petro As | | Oil Operator | Dec 1992 |
| 3489 | Phoenix Opr Co Inc-Lex 83 | | Oil Operator | Feb 1993 |
| 3490 | Phoenix Opr Co Inc-Nac | | Oil Operator | Dec 1992 |
| 3491 | Phoenix Opr Co Inc-New Amer 85 | | Oil Operator | Dec 1992 |
| 3492 | Phoenix Opr Co Inc-Northern La | | Oil Operator | Dec 1992 |
| 3493 | Phoenix Opr Co Inc-Oc Yacht 85 | | Oil Operator | Dec 1992 |
| 3494 | Phoenix Opr Co Inc-Oc Yacht II | | Oil Operator | Dec 1992 |
| 3495 | Phoenix Opr Co Inc-Ocean Yacht | | Oil Operator | Dec 1992 |
| 3496 | Phoenix Opr Co Inc-Petrovest | | Oil Operator | Dec 1992 |
| 3497 | Phoenix Opr Co Inc-PML | | Oil Operator | Dec 1992 |
| 3498 | Phoenix Opr Co Inc-RBF 1985 | | Oil Operator | Dec 1992 |
| 3499 | Phoenix Opr Co Inc-Rvside '85 | | Oil Operator | Dec 1992 |
| 3500 | Phoenix Opr Co Inc-Salem 1985 | | Oil Operator | Dec 1992 |