| 21201 | Pak Energy LLC | Calgary, AB T3A-5E8 | Oil Operator | Sep 2022 |
| 21202 | Pal Energy LLC | Guymon, OK 73942-1950 | Gas Operator | Aug 2009 |
| 21203 | Pal Kids Inc | Coronado, CA 92118 | Oil & Gas Operator | Nov 2000 |
| 21204 | Pal LLC | Gillette, WY 82718 | Oil Operator | Dec 2019 |
| 21205 | Palace Exploration Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2007 |
| 21206 | Palace Operating Company | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2009 |
| 21207 | Paladar Investments I, L.L.C. | Houston, TX 77090 | Oil & Gas Operator | Feb 2013 |
| 21208 | Paladin Drilling Company | McLeod, TX 75565 | Gas Operator | Sep 2011 |
| 21209 | Paladin Energy Corp. | Dallas, TX 75229 | Oil & Gas Operator | Jul 2017 |
| 21210 | Paladin Energy Partner LLC | Denver, CO 80201 | Oil & Gas Operator | Aug 2006 |
| 21211 | Paladin Exploration Co., Inc. | Plano, TX 75093 | Oil & Gas Operator | Feb 1995 |
| 21212 | Paladin Petroleum III, L.L.C. | Austin, TX 78746 | Oil & Gas Operator | Apr 2026 |
| 21213 | Paladin-Hayes, L.L.C. | Austin, TX 78746 | Oil & Gas Operator | Dec 1999 |
| 21214 | Paleo Oil & Gas, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 21215 | Paleo Oil Company LLC | Corpus Chrsti, TX 78411 | Oil & Gas Operator | Apr 2026 |
| 21216 | Paleo, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Apr 2026 |
| 21217 | Palisades Asset Holding Co LLC | Dallas, TX 75201 | Oil & Gas Operator | Aug 2017 |
| 21218 | Palisades Operating Company | Midland, TX 79702 | Oil & Gas Operator | Apr 2026 |
| 21219 | Palizay, Paul | Alden, NY 14004 | Gas Operator | Dec 2024 |
| 21220 | Palm Energy Offshore, L.L.C. | | Oil & Gas Operator | Apr 2019 |
| 21221 | Palm Oil & Gas Company | Sedona, AZ 86340 | Oil & Gas Operator | Feb 2026 |
| 21222 | Palm Operating LLC | Oklahoma City, OK 73106-5646 | Oil & Gas Operator | Nov 2019 |
| 21223 | Palmer Engineering, Inc. | Luray, KS 67649 | Gas Operator | Mar 2000 |
| 21224 | Palmer Oil Properties | Post, TX 79356 | Oil & Gas Operator | Apr 2026 |
| 21225 | Palmer Oil, Inc. | Garden City, KS 67846 | Oil & Gas Operator | Dec 2025 |
| 21226 | Palmer Operating LLC | Megargel, TX 76370 | Oil Operator | Apr 2026 |
| 21227 | Palmer Petroleum, Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Jun 2025 |
| 21228 | Palmer Tank Trucks, Inc. | Olney, TX 76374 | Oil & Gas Operator | Mar 2008 |
| 21229 | Palmer, J. M. | Keller, TX 76244 | Oil & Gas Operator | Aug 2009 |
| 21230 | Palmer, James W. | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2002 |
| 21231 | Palmer, John Inc. | Megargel, TX 76370 | Oil & Gas Operator | Feb 1994 |
| 21232 | Palmer, John LLC | Megargel, TX 76370 | Oil & Gas Operator | Apr 2026 |
| 21233 | Palmer, Mike Oil | Megargel, TX 76370 | Oil & Gas Operator | Mar 2021 |
| 21234 | Palmer, Scott Oil | Olney, TX 76374 | Oil Operator | Feb 2023 |
| 21235 | Palmetto Oil Co., Inc. | | Oil & Gas Operator | Jan 2025 |
| 21236 | Palmigo Oil Co. | West Hills, CA 91308 | Oil & Gas Operator | Oct 2017 |
| 21237 | Palo Alto Energy, LLC | | Oil Operator | Feb 2026 |
| 21238 | Palo Chop Development LLC | | Oil Operator | Aug 2018 |
| 21239 | Palo Cross, LLC | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 21240 | Palo Duro Resources LLC | Perryton, TX 79070 | Oil & Gas Operator | Apr 2026 |
| 21241 | Palo Petroleum, Inc. | Dallas, TX 75360 | Oil & Gas Operator | Apr 2026 |
| 21242 | Palo Pinto Bond Company, LLC | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 21243 | Palo Pinto Gas Company | Snyder, TX 79550 | Oil & Gas Operator | Dec 1994 |
| 21244 | Palo Pinto Oil & Gas Corporation | Mineral Wells, TX 76068 | Oil & Gas Operator | Apr 2015 |
| 21245 | Palo Pinto Production, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 1998 |
| 21246 | Paloma Blanca Well Service Inc. | Roswell, NM 88202 | Oil & Gas Operator | Jun 2002 |
| 21247 | Paloma Natural Gas, LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
| 21248 | Paloma Operating Co Inc | Houston, TX 77002-5220 | Oil & Gas Operator | Feb 2026 |
| 21249 | Paloma Operating, LLC | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Apr 2026 |
| 21250 | Paloma Permian Assetco, LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2025 |
| 21251 | Paloma Resources Inc | Roswell, NM 88201 | Oil & Gas Operator | Dec 1998 |
| 21252 | Paloma Resources, LLC | Houston, TX 77002 | Oil & Gas Operator | Jun 2018 |
| 21253 | Palomino Petrole | | Oil & Gas Operator | Dec 1995 |
| 21254 | Palomino Petroleum | Newton, KS 67114 | Oil Operator | Oct 2003 |
| 21255 | Palomino Petroleum Inc | Newton, KS 67114 | Oil & Gas Operator | Dec 2025 |
| 21256 | Palrich Oil Corporation | Abilene, TX 79601 | Oil & Gas Operator | Apr 2004 |
| 21257 | Paluca Petroleum Inc | Holdenville, OK 74848 | Oil & Gas Operator | Feb 2026 |
| 21258 | Paluxy Oil & Gas, LLC | Forney, TX 75126 | Oil & Gas Operator | Apr 2026 |
| 21259 | Paluxy Sands Corporation | Sonora, TX 76950 | Oil & Gas Operator | Jun 2012 |
| 21260 | Pam-Ark Oil Producers | | Oil Operator | Dec 1985 |
| 21261 | Pampa Water Disposal, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Apr 2026 |
| 21262 | Pan American Energy Corporation | | Oil & Gas Operator | Dec 1998 |
| 21263 | Pan American Petroleum Cor | | Oil & Gas Operator | Dec 1981 |
| 21264 | Pan American Petroleum Corp | | Oil & Gas Operator | Nov 1988 |
| 21265 | Pan American Sales Corporation | Dallas, TX 75202 | Oil & Gas Operator | Mar 2001 |
| 21266 | Pan Energy Company, Inc. | Orchard Park, NY 14127 | Oil & Gas Operator | Dec 2024 |
| 21267 | Pan Petroleum Corp. | Abilene, TX 79608 | Oil & Gas Operator | Mar 2008 |
| 21268 | Pan Petroleum MLP | Kansas City, MO 64114 | Oil & Gas Operator | Aug 1997 |
| 21269 | Pan Resources, Inc. | Borger, TX 79007 | Oil & Gas Operator | Mar 2008 |
| 21270 | Pan Texas Petroleum Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2003 |
| 21271 | Pan Western Energy Corporation | Tulsa, OK 74114 | Oil & Gas Operator | Apr 2026 |
| 21272 | Pan Western Petroleum Co. | | Oil & Gas Operator | Dec 1993 |
| 21273 | Pan-Ok Production Company | | Oil & Gas Operator | Nov 2024 |
| 21274 | Panaco Production Co | Houston, TX 77002 | Oil & Gas Operator | Dec 1999 |
| 21275 | Panaco, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2025 |
| 21276 | Panada Exploration, Inc. | Tulsa, OK 74135 | Oil & Gas Operator | Jun 1996 |
| 21277 | Panadero Oil Company | Dallas, TX 75206 | Oil & Gas Operator | Apr 2002 |
| 21278 | Panama Central School District | Panama, NY 14767 | Gas Operator | Dec 2024 |
| 21279 | Panamerican Operating Inc | Dallas, TX 75219 | Oil & Gas Operator | Apr 2026 |
| 21280 | Pancanadian Petr | | Oil Operator | Aug 1990 |
| 21281 | Pancanadian Petroleum Company | | Oil & Gas Operator | Oct 1989 |
| 21282 | Panda Pipe & Equipment, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 1996 |
| 21283 | Panenergy La Intrastate Co | | Oil Operator | Mar 2000 |
| 21284 | Panenergy Services Inc | Houston, TX 77525 | Oil & Gas Operator | May 2001 |
| 21285 | Panexco Operating LLC | Oklahoma City, OK 73103-2203 | Oil & Gas Operator | Oct 2014 |
| 21286 | Pangaea Exploration Corp | Edmond, OK 73013 | Oil & Gas Operator | May 2019 |
| 21287 | Pangborn Tom Dba Pangborn Exploration | | Oil & Gas Operator | Jan 1993 |
| 21288 | Pangea Corporation | San Angelo, TX 76904 | Oil & Gas Operator | Apr 2026 |
| 21289 | Pangea'S Edge Operating Company LLC | Plano, TX 75025 | Oil & Gas Operator | Apr 2026 |
| 21290 | Panhandle Easter | | Gas Operator | Dec 1986 |
| 21291 | Panhandle Eastern Pipeline Company LP | Houston, TX 77002-6803 | Oil & Gas Operator | Oct 1999 |
| 21292 | Panhandle Oil & Gas Consultants Inc | Woodward, OK 73802-5011 | Oil & Gas Operator | Jul 2015 |
| 21293 | Panhandle Oil & Gas Inc | Oklahoma City, OK 73112-5688 | Oil & Gas Operator | May 2007 |
| 21294 | Panhandle Oilfield Service Companies Inc | Liberal, KS 67905-1256 | Oil Operator | Sep 2000 |
| 21295 | Panhandle Petrol | | Oil Operator | Jun 1987 |
| 21296 | Panhandle Producing Co., Oper. | San Antonio, TX 78205 | Oil & Gas Operator | Oct 1993 |
| 21297 | Panhandle Producing Company | San Antonio, TX 78205 | Oil & Gas Operator | Oct 1993 |
| 21298 | Pannonian Energy Inc | Englewood, CO 80112 | Oil & Gas Operator | Mar 2004 |
| 21299 | Panoak Oil & Gas Corporation | Tulsa, OK 74137 | Oil & Gas Operator | Aug 2018 |
| 21300 | Panoche Vallecitos Oil Co. | | Oil & Gas Operator | Dec 2025 |