| 21401 | Paladin-Hayes, L.L.C. | Austin, TX 78746 | Oil & Gas Operator | Dec 1999 |
| 21402 | Paleo Oil & Gas, Inc. | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 21403 | Paleo Oil Company LLC | Corpus Chrsti, TX 78411 | Oil & Gas Operator | Nov 2024 |
| 21404 | Paleo, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Nov 2024 |
| 21405 | Palisades Asset Holding Co LLC | Dallas, TX 75201 | Oil & Gas Operator | Aug 2017 |
| 21406 | Palisades Operating Company | Midland, TX 79702 | Oil & Gas Operator | Nov 2024 |
| 21407 | Palizay, Paul | Alden, NY 14004 | Gas Operator | Dec 2023 |
| 21408 | Palm Energy Offshore, L.L.C. | | Oil & Gas Operator | Apr 2019 |
| 21409 | Palm Oil & Gas Company | Sedona, AZ 86340 | Oil & Gas Operator | Sep 2024 |
| 21410 | Palm Operating LLC | Oklahoma City, OK 73106-5646 | Oil & Gas Operator | Nov 2019 |
| 21411 | Palmer Engineering, Inc. | Luray, KS 67649 | Gas Operator | Mar 2000 |
| 21412 | Palmer Oil Properties | Post, TX 79356 | Oil & Gas Operator | Nov 2024 |
| 21413 | Palmer Oil, Inc. | Garden City, KS 67846 | Oil & Gas Operator | Jul 2024 |
| 21414 | Palmer Operating LLC | Megargel, TX 76370 | Oil Operator | Nov 2024 |
| 21415 | Palmer Petroleum Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Nov 2024 |
| 21416 | Palmer Tank Trucks, Inc. | Olney, TX 76374 | Oil & Gas Operator | Mar 2008 |
| 21417 | Palmer, J. M. | Keller, TX 76244 | Oil & Gas Operator | Aug 2009 |
| 21418 | Palmer, James W. | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2002 |
| 21419 | Palmer, John Inc. | Megargel, TX 76370 | Oil & Gas Operator | Feb 1994 |
| 21420 | Palmer, John LLC | Megargel, TX 76370 | Oil & Gas Operator | Nov 2024 |
| 21421 | Palmer, Mike Oil | Megargel, TX 76370 | Oil & Gas Operator | Mar 2021 |
| 21422 | Palmer, Scott Oil | Olney, TX 76374 | Oil Operator | Feb 2023 |
| 21423 | Palmetto Oil Co., Inc. | | Oil & Gas Operator | Jul 2024 |
| 21424 | Palmigo Oil Co. | West Hills, CA 91308 | Oil & Gas Operator | Oct 2017 |
| 21425 | Palo Chop Development LLC | | Oil Operator | Aug 2018 |
| 21426 | Palo Cross, LLC | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 21427 | Palo Duro Midstream (Texas Gathreing) L.P | Houston, TX 77002 | Oil & Gas Operator | Aug 2022 |
| 21428 | Palo Duro Resources LLC | Pampa, TX 79066 | Oil & Gas Operator | Nov 2024 |
| 21429 | Palo Petroleum, Inc. | Dallas, TX 75360 | Oil & Gas Operator | Nov 2024 |
| 21430 | Palo Pinto Bond Company, LLC | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 21431 | Palo Pinto Gas Company | Snyder, TX 79550 | Oil & Gas Operator | Dec 1994 |
| 21432 | Palo Pinto Oil & Gas Corporation | Mineral Wells, TX 76068 | Oil & Gas Operator | Apr 2015 |
| 21433 | Palo Pinto Production, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 1998 |
| 21434 | Paloma Blanca Well Service Inc. | Roswell, NM 88202 | Oil & Gas Operator | Jun 2002 |
| 21435 | Paloma Natural Gas, LLC | Houston, TX 77002 | Oil & Gas Operator | Jun 2024 |
| 21436 | Paloma Operating Co Inc | Houston, TX 77002-5220 | Oil & Gas Operator | Dec 2023 |
| 21437 | Paloma Operating, LLC | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Nov 2024 |
| 21438 | Paloma Resources Inc | Roswell, NM 88201 | Oil & Gas Operator | Dec 1998 |
| 21439 | Paloma Resources, LLC | Houston, TX 77002 | Oil & Gas Operator | Jun 2018 |
| 21440 | Palomino Petrole | | Oil & Gas Operator | Dec 1995 |
| 21441 | Palomino Petroleum | Newton, KS 67114 | Oil Operator | Oct 2003 |
| 21442 | Palomino Petroleum Inc | Newton, KS 67114 | Oil & Gas Operator | Jul 2024 |
| 21443 | Palrich Oil Corporation | Abilene, TX 79601 | Oil & Gas Operator | Apr 2004 |
| 21444 | Paluca Petroleum Inc | Holdenville, OK 74848 | Oil & Gas Operator | Sep 2024 |
| 21445 | Paluxy Oil & Gas, LLC | Forney, TX 75126 | Oil & Gas Operator | Nov 2024 |
| 21446 | Paluxy Sands Corporation | Sonora, TX 76950 | Oil & Gas Operator | Jun 2012 |
| 21447 | Pam-Ark Oil Producers | | Oil Operator | Dec 1985 |
| 21448 | Pampa Water Disposal, Inc. | Booker, TX 79005 | Oil & Gas Operator | Nov 2024 |
| 21449 | Pan American Energy Corporation | | Oil & Gas Operator | Dec 1998 |
| 21450 | Pan American Petroleum Cor | | Oil & Gas Operator | Dec 1981 |
| 21451 | Pan American Petroleum Corp | | Oil & Gas Operator | Jan 2008 |
| 21452 | Pan American Sales Corporation | Dallas, TX 75202 | Oil & Gas Operator | Mar 2001 |
| 21453 | Pan Energy Company, Inc. | Orchard Park, NY 14127 | Oil & Gas Operator | Dec 2023 |
| 21454 | Pan Petroleum Corp. | Abilene, TX 79608 | Oil & Gas Operator | Mar 2008 |
| 21455 | Pan Petroleum MLP | Kansas City, MO 64114 | Oil & Gas Operator | Aug 1997 |
| 21456 | Pan Resources, Inc. | Borger, TX 79007 | Oil & Gas Operator | Mar 2008 |
| 21457 | Pan Texas Petroleum Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2003 |
| 21458 | Pan Western Energy Corporation | Tulsa, OK 74114 | Oil & Gas Operator | Nov 2024 |
| 21459 | Pan Western Petroleum Co. | | Oil & Gas Operator | Dec 1993 |
| 21460 | Pan-Ok Production Company | | Oil & Gas Operator | Jul 2024 |
| 21461 | Panaco Production Co | Houston, TX 77002 | Oil & Gas Operator | Dec 1999 |
| 21462 | Panaco, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Jul 2024 |
| 21463 | Panada Exploration, Inc. | Tulsa, OK 74135 | Oil & Gas Operator | Jun 1996 |
| 21464 | Panadero Oil Company | Dallas, TX 75206 | Oil & Gas Operator | Apr 2002 |
| 21465 | Panamerican Operating Inc | Dallas, TX 75219 | Oil & Gas Operator | Nov 2024 |
| 21466 | Pancanadian Energy Resources Inc | | Oil & Gas Operator | Dec 2004 |
| 21467 | Pancanadian Petr | | Oil Operator | Aug 1990 |
| 21468 | Pancanadian Petroleum Company | | Oil & Gas Operator | Oct 1989 |
| 21469 | Panda Pipe & Equipment, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 1996 |
| 21470 | Panenergy La Intrastate Co | | Oil Operator | Mar 2000 |
| 21471 | Panenergy Services Inc | Houston, TX 77525 | Oil & Gas Operator | May 2001 |
| 21472 | Panexco Operating LLC | Oklahoma City, OK 73103-2203 | Oil & Gas Operator | Oct 2014 |
| 21473 | Pangaea Exploration Corp | Edmond, OK 73013 | Oil & Gas Operator | May 2019 |
| 21474 | Pangborn Tom Dba Pangborn Exploration | | Oil & Gas Operator | Jan 1993 |
| 21475 | Pangea Corporation | Allen, TX 75013 | Oil & Gas Operator | Nov 2024 |
| 21476 | Pangea'S Edge Operating Company LLC | Plano, TX 75025 | Oil & Gas Operator | Nov 2024 |
| 21477 | Panhandle Easter | | Gas Operator | Dec 1986 |
| 21478 | Panhandle Eastern Pipeline Company LP | Houston, TX 77002-6803 | Oil & Gas Operator | Oct 1999 |
| 21479 | Panhandle Oil & Gas Consultants Inc | Woodward, OK 73802-5011 | Oil & Gas Operator | Jul 2015 |
| 21480 | Panhandle Oil & Gas Inc | Oklahoma City, OK 73112-5688 | Oil & Gas Operator | May 2007 |
| 21481 | Panhandle Oilfield Service Companies Inc | Liberal, KS 67905-1256 | Oil Operator | Sep 2000 |
| 21482 | Panhandle Petrol | | Oil Operator | Jun 1987 |
| 21483 | Panhandle Producing Co., Oper. | San Antonio, TX 78205 | Oil & Gas Operator | Oct 1993 |
| 21484 | Panhandle Producing Company | San Antonio, TX 78205 | Oil & Gas Operator | Oct 1993 |
| 21485 | Panhandle Trading Company | Houston, TX 77251-1642 | Oil & Gas Operator | Jun 2003 |
| 21486 | Pannonian Energy Inc | Englewood, CO 80112 | Oil & Gas Operator | Mar 2004 |
| 21487 | Panoak Oil & Gas Corporation | Tulsa, OK 74137 | Oil & Gas Operator | Aug 2018 |
| 21488 | Panoche Vallecitos Oil Co. | | Oil & Gas Operator | Aug 2024 |
| 21489 | Panola Corporation, The | Dallas, TX 75252 | Oil & Gas Operator | Sep 2002 |
| 21490 | Panotech Exploration Corp. | | Oil & Gas Operator | Jan 1983 |
| 21491 | Pantano Energy | San Antonio, TX 78258 | Oil & Gas Operator | Jul 1999 |
| 21492 | Pantera Energy Company | Amarillo, TX 79101 | Oil & Gas Operator | Nov 2024 |
| 21493 | Pantex Oil & Gas LLC | Ranger, TX 76470 | Oil & Gas Operator | Jul 2018 |
| 21494 | Panther Bayou Energy, LLC | Houston, TX 77070 | Oil & Gas Operator | Apr 2021 |
| 21495 | Panther City Energy LLC | San Antonio, TX 78205 | Oil & Gas Operator | Nov 2024 |
| 21496 | Panther Creek Mining, LLC | Lexington, KY 40475 | Gas Operator | Dec 2021 |
| 21497 | Panther Creek Resources, LLC | Denver, CO 80202 | Oil & Gas Operator | May 2012 |
| 21498 | Panther Energy Company III LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jul 2020 |
| 21499 | Panther Energy Company, LLC | Tulsa, OK 74103 | Oil & Gas Operator | May 2022 |
| 21500 | Panther Exploration, LLC | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2017 |