| 22001 | Palace Operating Company | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2009 |
| 22002 | Paladar Investments I, L.L.C. | Houston, TX 77090 | Oil & Gas Operator | Feb 2013 |
| 22003 | Paladin Drilling Company | McLeod, TX 75565 | Gas Operator | Sep 2011 |
| 22004 | Paladin Energy Corp. | Dallas, TX 75229 | Oil & Gas Operator | Jul 2017 |
| 22005 | Paladin Energy Partner LLC | Denver, CO 80201 | Oil & Gas Operator | Aug 2006 |
| 22006 | Paladin Energy Partners LLC | | Oil & Gas Operator | Dec 2006 |
| 22007 | Paladin Exploration Co., Inc. | Plano, TX 75093 | Oil & Gas Operator | Feb 1995 |
| 22008 | Paladin Petroleum III, L.L.C. | Austin, TX 78746 | Oil & Gas Operator | Apr 2025 |
| 22009 | Paladin-Hayes, L.L.C. | Austin, TX 78746 | Oil & Gas Operator | Dec 1999 |
| 22010 | Paleo Oil & Gas, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 22011 | Paleo Oil Company LLC | Corpus Chrsti, TX 78411 | Oil & Gas Operator | Apr 2025 |
| 22012 | Paleo, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Apr 2025 |
| 22013 | Palisades Asset Holding Co LLC | Dallas, TX 75201 | Oil & Gas Operator | Aug 2017 |
| 22014 | Palisades Operating Company | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 22015 | Palizay, Paul | Alden, NY 14004 | Gas Operator | Dec 2023 |
| 22016 | Palm Energy Offshore, L.L.C. | | Oil & Gas Operator | Apr 2019 |
| 22017 | Palm Oil & Gas Company | Sedona, AZ 86340 | Oil & Gas Operator | Feb 2025 |
| 22018 | Palm Operating LLC | Oklahoma City, OK 73106-5646 | Oil & Gas Operator | Nov 2019 |
| 22019 | Palmer Engineering, Inc. | Luray, KS 67649 | Gas Operator | Mar 2000 |
| 22020 | Palmer Oil Properties | Post, TX 79356 | Oil & Gas Operator | Apr 2025 |
| 22021 | Palmer Oil, Inc. | Garden City, KS 67846 | Oil & Gas Operator | Dec 2024 |
| 22022 | Palmer Operating LLC | Megargel, TX 76370 | Oil Operator | Apr 2025 |
| 22023 | Palmer Petroleum Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Apr 2025 |
| 22024 | Palmer Tank Trucks, Inc. | Olney, TX 76374 | Oil & Gas Operator | Mar 2008 |
| 22025 | Palmer, J. M. | Keller, TX 76244 | Oil & Gas Operator | Aug 2009 |
| 22026 | Palmer, James W. | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2002 |
| 22027 | Palmer, John Inc. | Megargel, TX 76370 | Oil & Gas Operator | Feb 1994 |
| 22028 | Palmer, John LLC | Megargel, TX 76370 | Oil & Gas Operator | Apr 2025 |
| 22029 | Palmer, Mike Oil | Megargel, TX 76370 | Oil & Gas Operator | Mar 2021 |
| 22030 | Palmer, Scott Oil | Olney, TX 76374 | Oil Operator | Feb 2023 |
| 22031 | Palmetto Oil Co., Inc. | | Oil & Gas Operator | Jan 2025 |
| 22032 | Palmigo Oil Co. | West Hills, CA 91308 | Oil & Gas Operator | Oct 2017 |
| 22033 | Palo Chop Development LLC | | Oil Operator | Aug 2018 |
| 22034 | Palo Cross, LLC | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 22035 | Palo Duro Midstream (Texas Gathreing) L.P | Houston, TX 77002 | Oil & Gas Operator | Aug 2022 |
| 22036 | Palo Duro Resources LLC | Perryton, TX 79070 | Oil & Gas Operator | Apr 2025 |
| 22037 | Palo Petroleum, Inc. | Dallas, TX 75360 | Oil & Gas Operator | Apr 2025 |
| 22038 | Palo Pinto Bond Company, LLC | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 22039 | Palo Pinto Gas Company | Snyder, TX 79550 | Oil & Gas Operator | Dec 1994 |
| 22040 | Palo Pinto Oil & Gas Corporation | Mineral Wells, TX 76068 | Oil & Gas Operator | Apr 2015 |
| 22041 | Palo Pinto Production, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 1998 |
| 22042 | Paloma Blanca Well Service Inc. | Roswell, NM 88202 | Oil & Gas Operator | Jun 2002 |
| 22043 | Paloma Natural Gas, LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
| 22044 | Paloma Operating Co Inc | Houston, TX 77002-5220 | Oil & Gas Operator | Dec 2024 |
| 22045 | Paloma Operating, LLC | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2025 |
| 22046 | Paloma Permian Assetco, LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2025 |
| 22047 | Paloma Resources Inc | Roswell, NM 88201 | Oil & Gas Operator | Dec 1998 |
| 22048 | Paloma Resources, LLC | Houston, TX 77002 | Oil & Gas Operator | Jun 2018 |
| 22049 | Palomino Petrole | | Oil & Gas Operator | Dec 1995 |
| 22050 | Palomino Petroleum | Newton, KS 67114 | Oil Operator | Oct 2003 |
| 22051 | Palomino Petroleum Inc | Newton, KS 67114 | Oil & Gas Operator | Dec 2024 |
| 22052 | Palrich Oil Corporation | Abilene, TX 79601 | Oil & Gas Operator | Apr 2004 |
| 22053 | Paluca Petroleum Inc | Holdenville, OK 74848 | Oil & Gas Operator | Jan 2025 |
| 22054 | Paluxy Oil & Gas, LLC | Forney, TX 75126 | Oil & Gas Operator | Apr 2025 |
| 22055 | Paluxy Sands Corporation | Sonora, TX 76950 | Oil & Gas Operator | Jun 2012 |
| 22056 | Pam-Ark Oil Producers | | Oil Operator | Dec 1985 |
| 22057 | Pampa Water Disposal, Inc. | Booker, TX 79005 | Oil & Gas Operator | Apr 2025 |
| 22058 | Pan American Energy Corporation | | Oil & Gas Operator | Dec 1998 |
| 22059 | Pan American Petroleum Cor | | Oil & Gas Operator | Dec 1981 |
| 22060 | Pan American Petroleum Corp | | Oil & Gas Operator | Jan 2008 |
| 22061 | Pan American Sales Corporation | Dallas, TX 75202 | Oil & Gas Operator | Mar 2001 |
| 22062 | Pan Energy Company, Inc. | Orchard Park, NY 14127 | Oil & Gas Operator | Dec 2023 |
| 22063 | Pan Petroleum Corp. | Abilene, TX 79608 | Oil & Gas Operator | Mar 2008 |
| 22064 | Pan Petroleum MLP | Kansas City, MO 64114 | Oil & Gas Operator | Aug 1997 |
| 22065 | Pan Resources, Inc. | Borger, TX 79007 | Oil & Gas Operator | Mar 2008 |
| 22066 | Pan Texas Petroleum Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2003 |
| 22067 | Pan Western Energy Corporation | Tulsa, OK 74114 | Oil & Gas Operator | Apr 2025 |
| 22068 | Pan Western Petroleum Co. | | Oil & Gas Operator | Dec 1993 |
| 22069 | Pan-Ok Production Company | | Oil & Gas Operator | Nov 2024 |
| 22070 | Panaco Production Co | Houston, TX 77002 | Oil & Gas Operator | Dec 1999 |
| 22071 | Panaco, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Oct 2024 |
| 22072 | Panada Exploration, Inc. | Tulsa, OK 74135 | Oil & Gas Operator | Jun 1996 |
| 22073 | Panadero Oil Company | Dallas, TX 75206 | Oil & Gas Operator | Apr 2002 |
| 22074 | Panamerican Operating Inc | Dallas, TX 75219 | Oil & Gas Operator | Apr 2025 |
| 22075 | Pancanadian Energy Resources Inc | | Oil & Gas Operator | Dec 2004 |
| 22076 | Pancanadian Petr | | Oil Operator | Aug 1990 |
| 22077 | Pancanadian Petroleum Company | | Oil & Gas Operator | Oct 1989 |
| 22078 | Panda Pipe & Equipment, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 1996 |
| 22079 | Panda Resources Inc | Tulsa, OK 74137-3536 | Oil & Gas Operator | Feb 1994 |
| 22080 | Panenergy La Intrastate Co | | Oil Operator | Mar 2000 |
| 22081 | Panenergy Services Inc | Houston, TX 77525 | Oil & Gas Operator | May 2001 |
| 22082 | Panexco Operating LLC | Oklahoma City, OK 73103-2203 | Oil & Gas Operator | Oct 2014 |
| 22083 | Pangaea Exploration Corp | Edmond, OK 73013 | Oil & Gas Operator | May 2019 |
| 22084 | Pangborn Tom Dba Pangborn Exploration | | Oil & Gas Operator | Jan 1993 |
| 22085 | Pangea Corporation | San Angelo, TX 76904 | Oil & Gas Operator | Apr 2025 |
| 22086 | Pangea'S Edge Operating Company LLC | Plano, TX 75025 | Oil & Gas Operator | Apr 2025 |
| 22087 | Panhandle Easter | | Gas Operator | Dec 1986 |
| 22088 | Panhandle Eastern Pipeline Company LP | Houston, TX 77002-6803 | Oil & Gas Operator | Oct 1999 |
| 22089 | Panhandle Oil & Gas Consultants Inc | Woodward, OK 73802-5011 | Oil & Gas Operator | Jul 2015 |
| 22090 | Panhandle Oil & Gas Inc | Oklahoma City, OK 73112-5688 | Oil & Gas Operator | May 2007 |
| 22091 | Panhandle Oilfield Service Companies Inc | Liberal, KS 67905-1256 | Oil Operator | Sep 2000 |
| 22092 | Panhandle Petrol | | Oil Operator | Jun 1987 |
| 22093 | Panhandle Producing Co., Oper. | San Antonio, TX 78205 | Oil & Gas Operator | Oct 1993 |
| 22094 | Panhandle Producing Company | San Antonio, TX 78205 | Oil & Gas Operator | Oct 1993 |
| 22095 | Panhandle Trading Company | Houston, TX 77251-1642 | Oil & Gas Operator | Jun 2003 |
| 22096 | Pannonian Energy Inc | Englewood, CO 80112 | Oil & Gas Operator | Mar 2004 |
| 22097 | Panoak Oil & Gas Corporation | Tulsa, OK 74137 | Oil & Gas Operator | Aug 2018 |
| 22098 | Panoche Vallecitos Oil Co. | | Oil & Gas Operator | Dec 2024 |
| 22099 | Panola Corporation, The | Dallas, TX 75252 | Oil & Gas Operator | Sep 2002 |
| 22100 | Panola Energy Corporation | | Gas Operator | Mar 1980 |