| 3301 | Pennzenergy Exploration & Production LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2009 |
| 3302 | Peoples Oil, LLC | Ottawa, KS 66067 | Oil Operator | Jan 2025 |
| 3303 | Perera Ray & Den | | Oil Operator | Sep 1994 |
| 3304 | Perkins Oil Comp | | Oil Operator | Nov 1988 |
| 3305 | Perkins Oil Ente | | Oil & Gas Operator | Dec 1995 |
| 3306 | Perkins Oil Enterprises, Inc. | Howard, KS 67349 | Oil & Gas Operator | Jan 2025 |
| 3307 | Permian Reef, LLC | Greenwood, IN 46143 | Gas Operator | Mar 2011 |
| 3308 | Perrin Oil Compa | | Oil & Gas Operator | Jun 1985 |
| 3309 | Perry Petroleum | | Oil Operator | Jun 1993 |
| 3310 | Pet-Ex, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2025 |
| 3311 | Petco Energy Ser | | Oil Operator | Apr 1986 |
| 3312 | Peterland Oil Co | | Oil Operator | Sep 1990 |
| 3313 | Peterson Oil Co LLC | Centerville, KS 66014 | Oil Operator | Jan 2025 |
| 3314 | Petex | Breckenridge, TX 76424 | Oil & Gas Operator | May 2025 |
| 3315 | Petex Incorporat | | Oil Operator | Sep 1991 |
| 3316 | Petr Corporation | | Oil Operator | Apr 1988 |
| 3317 | Petr Exploration | | Oil Operator | Apr 1995 |
| 3318 | Petrie Enterpris | | Oil & Gas Operator | Sep 1986 |
| 3319 | Petrie, Stanley D. | Pratt, KS 67124 | Gas Operator | Aug 1995 |
| 3320 | Petrik Oil | Bartlesville, OK 74006 | Oil Operator | Nov 1996 |
| 3321 | Petrik Oil - Jim | | Oil Operator | Apr 1995 |
| 3322 | Petro 85 Incorpo | | Oil Operator | Mar 1993 |
| 3323 | Petro Dynamics C | | Oil & Gas Operator | Sep 1988 |
| 3324 | Petro Energies I | | Oil & Gas Operator | Apr 1991 |
| 3325 | Petro Locators I | | Oil & Gas Operator | Dec 1995 |
| 3326 | Petro Locators, Inc. | Pratt, KS 67124 | Oil & Gas Operator | Jan 2025 |
| 3327 | Petro Oil Produc | | Oil Operator | Aug 1989 |
| 3328 | Petro Pak Corpor | | Oil Operator | Aug 1988 |
| 3329 | Petro River Operating, LLC | New York City, NY 10017 | Oil & Gas Operator | Jul 2011 |
| 3330 | Petro Valley Ser | | Gas Operator | Dec 1986 |
| 3331 | Petro-Haley | Borger, TX 79008 | Oil & Gas Operator | May 2025 |
| 3332 | Petro-Lewis Corp. | | Oil & Gas Operator | Feb 1994 |
| 3333 | Petro-Technology | | Oil & Gas Operator | Aug 1991 |
| 3334 | Petro-Technology, Inc. | Topeka, KS 66604 | Gas Operator | Dec 1997 |
| 3335 | Petrocorp | | Oil & Gas Operator | Nov 1992 |
| 3336 | Petrocorp Incorporated | Tulsa, OK 74170 | Oil & Gas Operator | Nov 2021 |
| 3337 | Petrodome Operating, LLC | Houston, TX 77265 | Oil & Gas Operator | Jan 2025 |
| 3338 | Petroglyph Operating Co | Boise, ID 83709 | Oil & Gas Operator | Jul 2017 |
| 3339 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
| 3340 | Petrol Oil & Gas, Inc. | Overland Park, KS 66210 | Oil & Gas Operator | Dec 2008 |
| 3341 | Petroleum Corpor | | Oil Operator | Jan 1983 |
| 3342 | Petroleum Develo | | Oil Operator | Sep 1986 |
| 3343 | Petroleum Development Company | Tulsa, OK 74103 | Oil & Gas Operator | Feb 2025 |
| 3344 | Petroleum Energy | | Oil & Gas Operator | Mar 1991 |
| 3345 | Petroleum Energy, Inc. | Wichita, KS 67202 | Oil Operator | May 1999 |
| 3346 | Petroleum Enterp | | Oil & Gas Operator | Sep 1995 |
| 3347 | Petroleum Enterprises, Inc. | Hutchinson, KS 67504 | Oil & Gas Operator | May 2001 |
| 3348 | Petroleum Explor | | Oil Operator | Aug 1983 |
| 3349 | Petroleum Inc | Wichita, KS 67202 | Oil & Gas Operator | Oct 2021 |
| 3350 | Petroleum Incorp | | Oil & Gas Operator | Apr 1993 |
| 3351 | Petroleum Manage | | Oil & Gas Operator | Oct 1994 |
| 3352 | Petroleum Management, Inc. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | May 2025 |
| 3353 | Petroleum Prod. MGMT | | Oil Operator | Nov 1995 |
| 3354 | Petroleum Produc | | Oil & Gas Operator | Dec 1996 |
| 3355 | Petroleum Production Corporation | Rantoul, KS 66079 | Oil Operator | Feb 2024 |
| 3356 | Petroleum Production Management, Inc. | Shawnee Mission, KS 66202 | Oil & Gas Operator | Nov 2021 |
| 3357 | Petroleum Proper | | Oil & Gas Operator | Nov 1995 |
| 3358 | Petroleum Property Services, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Jan 2025 |
| 3359 | Petroleum Techno | | Oil & Gas Operator | Dec 1996 |
| 3360 | Petroleum Technologies, Inc. | Kansas City, MO 64112 | Oil & Gas Operator | Jan 2025 |
| 3361 | Petron Oil & Gas | Lenexa, KS 66215 | Oil & Gas Operator | Jan 2025 |
| 3362 | Petropro Petroleum LLC | | Oil Operator | Dec 2024 |
| 3363 | Petrosantander (USA) Inc. | Houston, TX 77057 | Oil & Gas Operator | Jan 2025 |
| 3364 | Petroventures In | | Oil Operator | Apr 1987 |
| 3365 | Petx Petroleum C | | Oil Operator | Nov 1993 |
| 3366 | Pfeifer Explorations, LLC | Hays, KS 67601 | Oil Operator | Jan 2025 |
| 3367 | Pfrang, Derek | Wetmore, KS 66550 | Oil Operator | Jul 2022 |
| 3368 | Pharyn Resources, LLC | Lenexa, KS 66219 | Oil Operator | Jun 2009 |
| 3369 | Phil Groves Oil | | Oil & Gas Operator | Dec 2024 |
| 3370 | Phillips Explora | | Oil & Gas Operator | Dec 1996 |
| 3371 | Phillips Exploration Company L.C. | Andover, KS 67002 | Oil & Gas Operator | Jan 2025 |
| 3372 | Phillips J L Oil | | Oil Operator | Dec 1992 |
| 3373 | Phillips Lee Oil | | Oil & Gas Operator | Aug 1995 |
| 3374 | Phillips Oil Company, LLC | Wichita, KS 67211 | Oil Operator | Jan 2025 |
| 3375 | Phillips Oil Properties Inc. | Derby, KS 67037 | Oil Operator | Jan 2025 |
| 3376 | Phillips Petrole | | Oil & Gas Operator | May 1995 |
| 3377 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 3378 | Phillips William | | Oil Operator | Jul 1989 |
| 3379 | Philpott Oil & Gas Co Inc | Atwood, KS 67730 | Oil Operator | Aug 2010 |
| 3380 | Phoenix Kansas Energy, LLC | Chanute, KS 66720 | Oil Operator | Aug 2003 |
| 3381 | Phoenix Oil Comp | | Oil Operator | Nov 1988 |
| 3382 | Phoenix Oil Corp | Wichita, KS 67201 | Oil & Gas Operator | Jan 1999 |
| 3383 | Pickett Brothers | | Oil Operator | Dec 1995 |
| 3384 | Pickrell Drilling Co., Inc. | Wichita, KS 67213 | Oil & Gas Operator | Jan 2025 |
| 3385 | Pieratt, Ralph | Burlington, KS 66839 | Oil Operator | Aug 1987 |
| 3386 | Pike Oil & Gas Inc | Pittsfield, IL 62363 | Oil & Gas Operator | Oct 2020 |
| 3387 | Piland Resources | | Oil & Gas Operator | Mar 2022 |
| 3388 | Pintail Petroleu | | Oil & Gas Operator | Dec 1995 |
| 3389 | Pintail Petroleum, LTD. | Wichita, KS 67202 | Oil & Gas Operator | Apr 2021 |
| 3390 | Pinto Petroleum | Wichita, KS 67211 | Oil Operator | Nov 2001 |
| 3391 | Pioneer Exploration Company | Houston, TX 77090 | Oil & Gas Operator | Mar 2025 |
| 3392 | Pioneer Exploration, LLC | Houston, TX 77090 | Oil & Gas Operator | Mar 2025 |
| 3393 | Pioneer Feedyard, LLC | Oakley, KS 67748 | Oil Operator | Jan 2025 |
| 3394 | Pioneer Natural Resources USA Inc | Irving, TX 75039 | Oil & Gas Operator | Jan 2025 |
| 3395 | Pioneer Oil Company, Inc. | Vincennes, IN 47501 | Oil & Gas Operator | Jan 2025 |
| 3396 | Pioneer Operatio | | Oil & Gas Operator | Mar 1986 |
| 3397 | Pioneer Operations, LLC | Hays, KS 67601 | Oil Operator | Jan 2025 |
| 3398 | Pioneer Resources Inc. | Phillipsburg, KS 67661 | Oil & Gas Operator | Oct 2020 |
| 3399 | Pipeline Oil & Gas, LLC | Phoenix, AZ 85016 | Oil Operator | Feb 2014 |
| 3400 | Piqua Petro, Inc. | Piqua, KS 66761 | Oil Operator | Jan 2025 |