| 3401 | Pennmark Resources Company | Edmond, OK 73013 | Oil & Gas Operator | Nov 2025 |
| 3402 | Pennzenergy Exploration And Production LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2009 |
| 3403 | Peoples Oil, LLC | Ottawa, KS 66067 | Oil Operator | Sep 2025 |
| 3404 | Perera Ray & Den | | Oil Operator | Sep 1994 |
| 3405 | Perkins Oil Comp | | Oil Operator | Nov 1988 |
| 3406 | Perkins Oil Ente | | Oil & Gas Operator | Dec 1995 |
| 3407 | Perkins Oil Enterprises, Inc. | Howard, KS 67349 | Oil & Gas Operator | Sep 2025 |
| 3408 | Perkins, A. E. | Augusta, KS 67010 | Gas Operator | Aug 1989 |
| 3409 | Permian Reef, LLC | Greenwood, IN 46143 | Gas Operator | Mar 2011 |
| 3410 | Perrin Oil Compa | | Oil & Gas Operator | Jun 1985 |
| 3411 | Perry Petroleum | | Oil Operator | Jun 1993 |
| 3412 | Pet-Ex Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Sep 2025 |
| 3413 | Petco Energy Ser | | Oil Operator | Apr 1986 |
| 3414 | Peterland Oil Co | | Oil Operator | Sep 1990 |
| 3415 | Peterson Oil Co LLC | Centerville, KS 66014 | Oil Operator | Sep 2025 |
| 3416 | Petex | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2026 |
| 3417 | Petex Incorporat | | Oil Operator | Sep 1991 |
| 3418 | Petr Corporation | | Oil Operator | Apr 1988 |
| 3419 | Petr Exploration | | Oil Operator | Apr 1995 |
| 3420 | Petrie Enterpris | | Oil & Gas Operator | Sep 1986 |
| 3421 | Petrie, Stanley D. | Pratt, KS 67124 | Gas Operator | Aug 1995 |
| 3422 | Petrik Oil | Bartlesville, OK 74006 | Oil Operator | Nov 1996 |
| 3423 | Petrik Oil - Jim | | Oil Operator | Apr 1995 |
| 3424 | Petro 85 Incorpo | | Oil Operator | Mar 1993 |
| 3425 | Petro Dynamics C | | Oil & Gas Operator | Sep 1988 |
| 3426 | Petro Energies I | | Oil & Gas Operator | Apr 1991 |
| 3427 | Petro Energies, Inc. | Burrton, KS 67020 | Gas Operator | Jun 2014 |
| 3428 | Petro Locators I | | Oil & Gas Operator | Dec 1995 |
| 3429 | Petro Locators, Inc. | Pratt, KS 67124 | Oil & Gas Operator | Sep 2025 |
| 3430 | Petro Oil Produc | | Oil Operator | Aug 1989 |
| 3431 | Petro Pak Corpor | | Oil Operator | Aug 1988 |
| 3432 | Petro River Operating, LLC | New York City, NY 10017 | Oil & Gas Operator | Jul 2011 |
| 3433 | Petro Valley Ser | | Gas Operator | Dec 1986 |
| 3434 | Petro X Energy L | | Oil & Gas Operator | May 1986 |
| 3435 | Petro-Haley | Borger, TX 79008 | Oil & Gas Operator | Feb 2026 |
| 3436 | Petro-Lewis Corp. | | Oil & Gas Operator | Feb 1994 |
| 3437 | Petro-Technology | | Oil & Gas Operator | Aug 1991 |
| 3438 | Petro-Technology, Inc. | Topeka, KS 66604 | Gas Operator | Dec 1997 |
| 3439 | Petrocorp | | Oil & Gas Operator | Nov 1992 |
| 3440 | Petrocorp Incorporated | Tulsa, OK 74170 | Oil & Gas Operator | Nov 2021 |
| 3441 | Petrodome Operating, LLC | Houston, TX 77265 | Oil & Gas Operator | May 2025 |
| 3442 | Petroglyph Operating Co | Boise, ID 83709 | Oil & Gas Operator | Jul 2017 |
| 3443 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
| 3444 | Petrol Oil & Gas, Inc. | Overland Park, KS 66210 | Oil & Gas Operator | Dec 2008 |
| 3445 | Petrolantic, Inc. | Independence, KS 67301 | Gas Operator | Feb 1993 |
| 3446 | Petroleum Corpor | | Oil Operator | Jan 1983 |
| 3447 | Petroleum Develo | | Oil Operator | Sep 1986 |
| 3448 | Petroleum Development Company | Tulsa, OK 74103 | Oil & Gas Operator | Nov 2025 |
| 3449 | Petroleum Energy | | Oil & Gas Operator | Mar 1991 |
| 3450 | Petroleum Energy, Inc. | Wichita, KS 67202 | Oil Operator | May 1999 |
| 3451 | Petroleum Enterp | | Oil & Gas Operator | Sep 1995 |
| 3452 | Petroleum Enterprises, Inc. | Hutchinson, KS 67504 | Oil & Gas Operator | May 2001 |
| 3453 | Petroleum Explor | | Oil Operator | Aug 1983 |
| 3454 | Petroleum Inc | Wichita, KS 67202 | Oil & Gas Operator | Oct 2021 |
| 3455 | Petroleum Incorp | | Oil & Gas Operator | Apr 1993 |
| 3456 | Petroleum Manage | | Oil & Gas Operator | Oct 1994 |
| 3457 | Petroleum Management, Inc. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Feb 2026 |
| 3458 | Petroleum Prod. MGMT | | Oil Operator | Nov 1995 |
| 3459 | Petroleum Produc | | Oil & Gas Operator | Dec 1996 |
| 3460 | Petroleum Production Corporation | Rantoul, KS 66079 | Oil Operator | Feb 2024 |
| 3461 | Petroleum Production Management Inc | Shawnee Mission, KS 66202 | Oil & Gas Operator | Nov 2021 |
| 3462 | Petroleum Proper | | Oil & Gas Operator | Nov 1995 |
| 3463 | Petroleum Property Services, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Sep 2025 |
| 3464 | Petroleum Techno | | Oil & Gas Operator | Dec 1996 |
| 3465 | Petroleum Technologies, Inc. | Kansas City, MO 64112 | Oil & Gas Operator | Sep 2025 |
| 3466 | Petron Oil & Gas | Lenexa, KS 66215 | Oil & Gas Operator | Sep 2025 |
| 3467 | Petropro Petroleum LLC | | Oil Operator | Sep 2025 |
| 3468 | Petrosantander (USA) Inc. | Houston, TX 77057 | Oil & Gas Operator | Sep 2025 |
| 3469 | Petroventures In | | Oil Operator | Apr 1987 |
| 3470 | Petx Petroleum C | | Oil Operator | Nov 1993 |
| 3471 | Pfeifer Explorations, LLC | Hays, KS 67601 | Oil Operator | Sep 2025 |
| 3472 | Pfrang, Derek | Wetmore, KS 66550 | Oil Operator | Jul 2022 |
| 3473 | Pharyn Resources, LLC | Lenexa, KS 66219 | Oil Operator | Jun 2009 |
| 3474 | Phil Groves Oil | | Oil & Gas Operator | Sep 2025 |
| 3475 | Phillips Explora | | Oil & Gas Operator | Dec 1996 |
| 3476 | Phillips Exploration Company L.C. | Andover, KS 67002 | Oil & Gas Operator | Sep 2025 |
| 3477 | Phillips J L Oil | | Oil Operator | Dec 1992 |
| 3478 | Phillips Lee Oil | | Oil & Gas Operator | Aug 1995 |
| 3479 | Phillips Oil Company, LLC | Wichita, KS 67211 | Oil Operator | Sep 2025 |
| 3480 | Phillips Oil Properties Inc. | Derby, KS 67037 | Oil Operator | Sep 2025 |
| 3481 | Phillips Petrole | | Oil & Gas Operator | May 1995 |
| 3482 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 3483 | Phillips William | | Oil Operator | Jul 1989 |
| 3484 | Philpott Oil & Gas Co Inc | Atwood, KS 67730 | Oil Operator | Aug 2010 |
| 3485 | Phoenix Kansas Energy, LLC | Chanute, KS 66720 | Oil Operator | Aug 2003 |
| 3486 | Phoenix Oil Comp | | Oil Operator | Nov 1988 |
| 3487 | Phoenix Oil Corp | Wichita, KS 67201 | Oil & Gas Operator | Jan 1999 |
| 3488 | Pic Inc | Ponca City, OK 74602 | Oil & Gas Operator | Jan 2013 |
| 3489 | Pickett Brothers | | Oil Operator | Dec 1995 |
| 3490 | Pickrell Drilling Co., Inc. | Wichita, KS 67213 | Oil & Gas Operator | Sep 2025 |
| 3491 | Pieratt, Ralph | Burlington, KS 66839 | Oil Operator | Aug 1987 |
| 3492 | Pike Oil & Gas Inc | Pittsfield, IL 62363 | Oil & Gas Operator | Oct 2020 |
| 3493 | Piland Resources | | Oil & Gas Operator | Mar 2022 |
| 3494 | Pintail Petroleu | | Oil & Gas Operator | Dec 1995 |
| 3495 | Pintail Petroleum | | Oil & Gas Operator | Oct 1993 |
| 3496 | Pintail Petroleum, LTD. | Wichita, KS 67202 | Oil & Gas Operator | Apr 2021 |
| 3497 | Pinto Petroleum | Wichita, KS 67211 | Oil Operator | Nov 2001 |
| 3498 | Pioneer Exploration Company | Houston, TX 77090 | Oil & Gas Operator | Dec 2025 |
| 3499 | Pioneer Exploration, LLC | Houston, TX 77090 | Oil & Gas Operator | Dec 2025 |
| 3500 | Pioneer Feedyard, LLC | Oakley, KS 67748 | Oil Operator | Sep 2025 |