| 21201 | Pablo Energy, Inc. | Pampa, TX 79065 | Oil & Gas Operator | Dec 2005 |
| 21202 | Pac Drilling LLC | Bolivar, OH 44612 | Oil & Gas Operator | Dec 2023 |
| 21203 | Pace And Ray Oil Co. | Electra, TX 76360 | Oil & Gas Operator | Sep 2024 |
| 21204 | Pace Co/Chas E Hall | Marietta, OH 45750 | Oil & Gas Operator | Dec 1990 |
| 21205 | Pace Diversified Corporation | | Oil & Gas Operator | Jun 2024 |
| 21206 | Pace Exploration LLC | Tulsa, OK 74133 | Oil & Gas Operator | Jun 2024 |
| 21207 | Pace Oil And Gas Company | Austin, TX 78715 | Oil & Gas Operator | Sep 2024 |
| 21208 | Pace Operating | Abilene, TX 79608 | Oil & Gas Operator | Sep 2024 |
| 21209 | Pace Petroleum Company | Dallas, TX 75206 | Oil & Gas Operator | Sep 2024 |
| 21210 | Pace Royalty Trust Fund, Inc. | Shreveport, LA 71135 | Oil & Gas Operator | Nov 2001 |
| 21211 | Pace West Production LC | San Angelo, TX 76904 | Oil & Gas Operator | Sep 1995 |
| 21212 | Pacesetter Energy, Inc. | Flower Mound, TX 75028 | Oil & Gas Operator | May 2008 |
| 21213 | Pacesetter Energy, LLC | Flower Mound, TX 75028 | Oil & Gas Operator | Jul 2020 |
| 21214 | Pacific Alliance Medical Center | | Oil Operator | Dec 2007 |
| 21215 | Pacific Atlantic Resources, Inc. | | Oil & Gas Operator | Dec 2021 |
| 21216 | Pacific Coast Energy Company LP | | Oil & Gas Operator | Jul 2024 |
| 21217 | Pacific Energy & Mining Company | Reno, NV 89511 | Oil & Gas Operator | Aug 2020 |
| 21218 | Pacific Energy Resources Inc. | | Oil Operator | Jun 2024 |
| 21219 | Pacific Energy Resources LTD | | Oil & Gas Operator | Sep 2009 |
| 21220 | Pacific Enterprise Oil Co USA | Los Angeles, CA 90071-2005 | Oil & Gas Operator | Aug 2012 |
| 21221 | Pacific Enterprises Oil Co USA | Dallas, TX 75201 | Oil & Gas Operator | Feb 2001 |
| 21222 | Pacific Enterprises Royalty Co | Oklahoma City, OK 73101 | Oil & Gas Operator | Feb 2002 |
| 21223 | Pacific Exploration Oper Co, LLC | Houston, TX 77057 | Oil Operator | Sep 2024 |
| 21224 | Pacific Gas And Electric Company | | Gas Operator | Jul 2024 |
| 21225 | Pacific Inland Operating Corporation | | Gas Operator | Dec 1993 |
| 21226 | Pacific Natural Gas Explor | | Oil & Gas Operator | Dec 1974 |
| 21227 | Pacific Operators, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Mar 1999 |
| 21228 | Pacific Palms Petroleum LLC | | Oil & Gas Operator | Jul 2024 |
| 21229 | Pacific Petroleum Technology LLC | | Oil & Gas Operator | Dec 2018 |
| 21230 | Pacific Phoenix Inc | Bartlesville, OK 74005 | Oil & Gas Operator | Jun 1998 |
| 21231 | Pacific Trans Supply | Vernal, UT 84078 | Oil & Gas Operator | Jul 1987 |
| 21232 | Pacific Transmission Supply | | Oil & Gas Operator | Dec 1987 |
| 21233 | Pacific-Atlantic Oil Company, Inc. | | Oil & Gas Operator | Aug 2016 |
| 21234 | Pacific-Northwestern Energy LLC | | Oil Operator | Dec 2022 |
| 21235 | Pack-Man Energy Company | Ranger, TX 76470 | Oil & Gas Operator | Nov 2005 |
| 21236 | Packard Energy LLC | Medicine Lodge, KS 67104 | Oil & Gas Operator | May 2024 |
| 21237 | Packard Gas Company | Irving, TX 75063 | Oil & Gas Operator | Nov 2006 |
| 21238 | Packard, Lynn | Medicine Lodge, KS | Oil & Gas Operator | Mar 2024 |
| 21239 | Pactola Development Co | Tulsa, OK 74159 | Oil & Gas Operator | Sep 2004 |
| 21240 | Pada Petroleum, Inc. | Maple City, KS 67102 | Oil & Gas Operator | May 2024 |
| 21241 | Padco LLC | | Oil & Gas Operator | Jun 2024 |
| 21242 | Padgett Oil Inc. | Sedan, KS 67361 | Oil Operator | May 2006 |
| 21243 | Padon, Frank B. Oil Oper., Inc. | Houston, TX 77227 | Oil & Gas Operator | Nov 1998 |
| 21244 | Padre Oil Co. | | Oil & Gas Operator | Jun 2024 |
| 21245 | Page Development, L.L.C. | | Oil Operator | Jan 2024 |
| 21246 | Page Energy | Eldorado, TX 76936 | Oil & Gas Operator | Mar 1997 |
| 21247 | Page Exploration | Midland, TX 79701 | Oil & Gas Operator | Apr 2007 |
| 21248 | Page Lew Barron | | Oil Operator | Dec 2023 |
| 21249 | Page Oil & Gas, LLC | Midland, TX 79701 | Oil & Gas Operator | Sep 2024 |
| 21250 | Page Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Aug 2010 |
| 21251 | Page Petroleum Inc | Calgary, AB T2P3M-3000 | Oil & Gas Operator | Nov 1998 |
| 21252 | Page, Allen | | Oil & Gas Operator | Dec 2014 |
| 21253 | Paine Petroleum Company LLC | | Oil Operator | Dec 2013 |
| 21254 | Paint Rock Operating, LLC | San Angelo, TX 76904 | Oil & Gas Operator | Sep 2024 |
| 21255 | Painted Pegasus Petroleum LLC | | Oil & Gas Operator | Aug 2023 |
| 21256 | Painter & McPhail | Bartlesville, OK 74006 | Oil Operator | Sep 1996 |
| 21257 | Painter Oil And Gas LTD. | | Oil & Gas Operator | Jun 1986 |
| 21258 | Painter Oil Comp | | Oil & Gas Operator | Jul 1993 |
| 21259 | Paisano Minerals Company | Corpus Chrsti, TX 78477 | Oil & Gas Operator | Aug 2003 |
| 21260 | Paisano Petroleum, Inc. | San Antonio, TX 78246 | Oil & Gas Operator | Dec 2016 |
| 21261 | Paisano Production, Inc. | Somerset, TX 78069 | Oil Operator | Sep 2024 |
| 21262 | Paiute Oil & Mining Corp | Salt Lake City, UT 84117 | Oil & Gas Operator | Jun 1989 |
| 21263 | Pajaro Energy LLC | Santa Fe, NM 87501 | Oil & Gas Operator | Jan 2024 |
| 21264 | Pak Energy LLC | Calgary, AB T3A-5E8 | Oil Operator | Sep 2022 |
| 21265 | Pal Energy LLC | Guymon, OK 73942-1950 | Gas Operator | Aug 2009 |
| 21266 | Pal Kids Inc | Coronado, CA 92118 | Oil & Gas Operator | Nov 2000 |
| 21267 | Pal LLC | Gillette, WY 82718 | Oil Operator | Dec 2019 |
| 21268 | Palace Exploration Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2007 |
| 21269 | Palace Operating Company | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2009 |
| 21270 | Paladar Investments I, L.L.C. | Houston, TX 77090 | Oil & Gas Operator | Feb 2013 |
| 21271 | Paladin Drilling Company | McLeod, TX 75565 | Gas Operator | Sep 2011 |
| 21272 | Paladin Energy Corp. | Dallas, TX 75229 | Oil & Gas Operator | Jul 2017 |
| 21273 | Paladin Energy Partner LLC | Denver, CO 80201 | Oil & Gas Operator | Aug 2006 |
| 21274 | Paladin Energy Partners LLC | | Oil & Gas Operator | Dec 2006 |
| 21275 | Paladin Exploration Co., Inc. | Plano, TX 75093 | Oil & Gas Operator | Feb 1995 |
| 21276 | Paladin Petroleum III, L.L.C. | Austin, TX 78746 | Oil & Gas Operator | Sep 2024 |
| 21277 | Paladin-Hayes, L.L.C. | Austin, TX 78746 | Oil & Gas Operator | Dec 1999 |
| 21278 | Paleo Oil & Gas, Inc. | Graham, TX 76450 | Oil & Gas Operator | Sep 2024 |
| 21279 | Paleo Oil Company LLC | Corpus Chrsti, TX 78411 | Oil & Gas Operator | Sep 2024 |
| 21280 | Paleo, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Sep 2024 |
| 21281 | Palisades Asset Holding Co LLC | Dallas, TX 75201 | Oil & Gas Operator | Aug 2017 |
| 21282 | Palisades Operating Company | Midland, TX 79702 | Oil & Gas Operator | Sep 2024 |
| 21283 | Palizay, Paul | Alden, NY 14004 | Gas Operator | Dec 2023 |
| 21284 | Palm Energy Offshore, L.L.C. | | Oil & Gas Operator | Apr 2019 |
| 21285 | Palm Oil & Gas Company | Sedona, AZ 86340 | Oil & Gas Operator | Jul 2024 |
| 21286 | Palm Operating LLC | Oklahoma City, OK 73106-5646 | Oil & Gas Operator | Nov 2019 |
| 21287 | Palmer Engineering, Inc. | Luray, KS 67649 | Gas Operator | Mar 2000 |
| 21288 | Palmer Oil Properties | Post, TX 79356 | Oil & Gas Operator | Sep 2024 |
| 21289 | Palmer Oil, Inc. | Garden City, KS 67846 | Oil & Gas Operator | May 2024 |
| 21290 | Palmer Operating LLC | Megargel, TX 76370 | Oil Operator | Sep 2024 |
| 21291 | Palmer Petroleum Inc. | Shreveport, LA 71106 | Oil & Gas Operator | Sep 2024 |
| 21292 | Palmer Tank Trucks, Inc. | Olney, TX 76374 | Oil & Gas Operator | Mar 2008 |
| 21293 | Palmer, J. M. | Keller, TX 76244 | Oil & Gas Operator | Aug 2009 |
| 21294 | Palmer, James W. | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2002 |
| 21295 | Palmer, John Inc. | Megargel, TX 76370 | Oil & Gas Operator | Feb 1994 |
| 21296 | Palmer, John LLC | Megargel, TX 76370 | Oil & Gas Operator | Sep 2024 |
| 21297 | Palmer, Mike Oil | Megargel, TX 76370 | Oil & Gas Operator | Mar 2021 |
| 21298 | Palmer, Scott Oil | Olney, TX 76374 | Oil Operator | Feb 2023 |
| 21299 | Palmetto Oil Co., Inc. | | Oil & Gas Operator | Jan 2024 |
| 21300 | Palmigo Oil Co. | West Hills, CA 91308 | Oil & Gas Operator | Oct 2017 |