| 21101 | Pacific Enterprise Oil Co USA | Los Angeles, CA 90071-2005 | Oil & Gas Operator | Aug 2012 |
| 21102 | Pacific Enterprises Oil Co USA | Dallas, TX 75201 | Oil & Gas Operator | Feb 2001 |
| 21103 | Pacific Enterprises Royalty Co | Oklahoma City, OK 73101 | Oil & Gas Operator | Feb 2002 |
| 21104 | Pacific Exploration Oper Co, LLC | Houston, TX 77057 | Oil Operator | Jun 2026 |
| 21105 | Pacific Gas And Electric Company | | Gas Operator | Mar 2026 |
| 21106 | Pacific Inland Operating Corporation | | Gas Operator | Dec 1993 |
| 21107 | Pacific Natural Gas Explor | | Oil & Gas Operator | Dec 1974 |
| 21108 | Pacific Operators, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Mar 1999 |
| 21109 | Pacific Palms Petroleum LLC | | Oil & Gas Operator | Mar 2026 |
| 21110 | Pacific Petroleum Technology LLC | | Oil & Gas Operator | Dec 2018 |
| 21111 | Pacific Trans Supply | Vernal, UT 84078 | Oil & Gas Operator | Jul 1987 |
| 21112 | Pacific Transmission Supply | | Oil & Gas Operator | Dec 1987 |
| 21113 | Pack-Man Energy Company | Ranger, TX 76470 | Oil & Gas Operator | Nov 2005 |
| 21114 | Packard Energy LLC | Medicine Lodge, KS 67104 | Oil & Gas Operator | Feb 2026 |
| 21115 | Packard Gas Company | Irving, TX 75063 | Oil & Gas Operator | Nov 2006 |
| 21116 | Packard, Lynn | Medicine Lodge, KS | Oil & Gas Operator | Feb 2026 |
| 21117 | Pactola Development Co | Tulsa, OK 74159 | Oil & Gas Operator | Sep 2004 |
| 21118 | Pada Petroleum, Inc. | Maple City, KS 67102 | Oil & Gas Operator | Feb 2026 |
| 21119 | Padco LLC | | Oil & Gas Operator | Mar 2023 |
| 21120 | Padgett Oil Inc. | Sedan, KS 67361 | Oil Operator | May 2006 |
| 21121 | Padon, Frank B. Oil Oper., Inc. | Houston, TX 77227 | Oil & Gas Operator | Nov 1998 |
| 21122 | Padre Oil Co. | | Oil & Gas Operator | Mar 2026 |
| 21123 | Page Development, L.L.C. | | Oil Operator | Dec 2024 |
| 21124 | Page Energy | Eldorado, TX 76936 | Oil & Gas Operator | Mar 1997 |
| 21125 | Page Exploration | Midland, TX 79701 | Oil & Gas Operator | Apr 2007 |
| 21126 | Page Lew Barron | | Oil Operator | Dec 2025 |
| 21127 | Page Oil & Gas, LLC | Midland, TX 79701 | Oil & Gas Operator | Jun 2026 |
| 21128 | Page Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Aug 2010 |
| 21129 | Page Petroleum Inc | Calgary, AB T2P3M-3000 | Oil & Gas Operator | Nov 1998 |
| 21130 | Page, Allen | | Oil & Gas Operator | Dec 2014 |
| 21131 | Paine Petroleum Company LLC | | Oil Operator | Dec 2013 |
| 21132 | Paint Rock Operating, LLC | San Angelo, TX 76904 | Oil & Gas Operator | Jun 2026 |
| 21133 | Painted Pegasus Petroleum LLC | | Oil & Gas Operator | Jul 2024 |
| 21134 | Painter & McPhail | Bartlesville, OK 74006 | Oil Operator | Sep 1996 |
| 21135 | Painter Oil And Gas LTD. | | Oil & Gas Operator | Jun 1986 |
| 21136 | Painter Oil Comp | | Oil & Gas Operator | Jul 1993 |
| 21137 | Pairadice Oil And Gas Company LLC | Caldwell, TX 77836 | Oil Operator | Jun 2026 |
| 21138 | Paisano Minerals Company | Corpus Chrsti, TX 78477 | Oil & Gas Operator | Aug 2003 |
| 21139 | Paisano Petroleum, Inc. | San Antonio, TX 78246 | Oil & Gas Operator | Dec 2016 |
| 21140 | Paisano Production, Inc. | Somerset, TX 78069 | Oil Operator | Jun 2026 |
| 21141 | Paiute Oil & Mining Corp | Salt Lake City, UT 84117 | Oil & Gas Operator | Jun 1989 |
| 21142 | Pajaro Energy LLC | Santa Fe, NM 87501 | Oil & Gas Operator | Dec 2023 |
| 21143 | Pak Energy LLC | Calgary, AB T3A-5E8 | Oil Operator | Sep 2022 |
| 21144 | Pal Energy LLC | Guymon, OK 73942-1950 | Gas Operator | Aug 2009 |
| 21145 | Pal Kids Inc | Coronado, CA 92118 | Oil & Gas Operator | Nov 2000 |
| 21146 | Pal LLC | Gillette, WY 82718 | Oil Operator | Dec 2019 |
| 21147 | Palace Exploration Company | Houston, TX 77002 | Oil & Gas Operator | Mar 2007 |
| 21148 | Palace Operating Company | Tulsa, OK 74136 | Oil & Gas Operator | Aug 2009 |
| 21149 | Paladar Investments I, L.L.C. | Houston, TX 77090 | Oil & Gas Operator | Feb 2013 |
| 21150 | Paladin Drilling Company | McLeod, TX 75565 | Gas Operator | Sep 2011 |
| 21151 | Paladin Energy Corp. | Dallas, TX 75229 | Oil & Gas Operator | Jul 2017 |
| 21152 | Paladin Energy Partner LLC | Denver, CO 80201 | Oil & Gas Operator | Aug 2006 |
| 21153 | Paladin Exploration Co., Inc. | Plano, TX 75093 | Oil & Gas Operator | Feb 1995 |
| 21154 | Paladin Petroleum III, L.L.C. | Austin, TX 78746 | Oil & Gas Operator | Jun 2026 |
| 21155 | Paladin-Hayes, L.L.C. | Austin, TX 78746 | Oil & Gas Operator | Dec 1999 |
| 21156 | Paleo Oil & Gas, Inc. | Graham, TX 76450 | Oil & Gas Operator | Jun 2026 |
| 21157 | Paleo Oil Company LLC | Corpus Christ, TX 78411 | Oil & Gas Operator | Jun 2026 |
| 21158 | Paleo, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Jun 2026 |
| 21159 | Palisades Asset Holding Co LLC | Dallas, TX 75201 | Oil & Gas Operator | Aug 2017 |
| 21160 | Palisades Operating Company | Midland, TX 79702 | Oil & Gas Operator | Jun 2026 |
| 21161 | Palizay, Paul | Alden, NY 14004 | Gas Operator | Dec 2024 |
| 21162 | Palm Energy Offshore, L.L.C. | | Oil & Gas Operator | Apr 2019 |
| 21163 | Palm Oil & Gas Company | Sedona, AZ 86340 | Oil & Gas Operator | Mar 2026 |
| 21164 | Palm Operating LLC | Oklahoma City, OK 73106-5646 | Oil & Gas Operator | Nov 2019 |
| 21165 | Palmer Engineering, Inc. | Luray, KS 67649 | Gas Operator | Mar 2000 |
| 21166 | Palmer Oil Properties | Post, TX 79356 | Oil & Gas Operator | Jun 2026 |
| 21167 | Palmer Oil, Inc. | Garden City, KS 67846 | Oil & Gas Operator | Feb 2026 |
| 21168 | Palmer Operating LLC | Megargel, TX 76370 | Oil Operator | Jun 2026 |
| 21169 | Palmer Petroleum, Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Jun 2025 |
| 21170 | Palmer Tank Trucks, Inc. | Olney, TX 76374 | Oil & Gas Operator | Mar 2008 |
| 21171 | Palmer, J. M. | Keller, TX 76244 | Oil & Gas Operator | Aug 2009 |
| 21172 | Palmer, James W. | Wichita Falls, TX 76308 | Oil & Gas Operator | Jul 2002 |
| 21173 | Palmer, John Inc. | Megargel, TX 76370 | Oil & Gas Operator | Feb 1994 |
| 21174 | Palmer, John LLC | Megargel, TX 76370 | Oil & Gas Operator | Jun 2026 |
| 21175 | Palmer, Mike Oil | Megargel, TX 76370 | Oil & Gas Operator | Mar 2021 |
| 21176 | Palmer, Scott Oil | Olney, TX 76374 | Oil Operator | Feb 2023 |
| 21177 | Palmetto Oil Co., Inc. | | Oil & Gas Operator | Jan 2025 |
| 21178 | Palmigo Oil Co. | West Hills, CA 91308 | Oil & Gas Operator | Oct 2017 |
| 21179 | Palo Alto Energy, LLC | | Oil & Gas Operator | Apr 2026 |
| 21180 | Palo Chop Development LLC | | Oil Operator | Aug 2018 |
| 21181 | Palo Cross, LLC | Graham, TX 76450 | Oil & Gas Operator | Jun 2026 |
| 21182 | Palo Duro Resources LLC | Perryton, TX 79070 | Oil & Gas Operator | Jun 2026 |
| 21183 | Palo Petroleum, Inc. | Dallas, TX 75360 | Oil & Gas Operator | Jun 2026 |
| 21184 | Palo Pinto Bond Company, LLC | Graham, TX 76450 | Oil & Gas Operator | Jun 2026 |
| 21185 | Palo Pinto Gas Company | Snyder, TX 79550 | Oil & Gas Operator | Dec 1994 |
| 21186 | Palo Pinto Oil & Gas Corporation | Mineral Wells, TX 76068 | Oil & Gas Operator | Apr 2015 |
| 21187 | Palo Pinto Production, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Aug 1998 |
| 21188 | Paloma Blanca Well Service Inc. | Roswell, NM 88202 | Oil & Gas Operator | Jun 2002 |
| 21189 | Paloma Natural Gas, LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2024 |
| 21190 | Paloma Operating Co Inc | Houston, TX 77002-5220 | Oil & Gas Operator | Mar 2026 |
| 21191 | Paloma Operating, LLC | Corpus Christ, TX 78401 | Oil & Gas Operator | Jun 2026 |
| 21192 | Paloma Permian Assetco, LLC | Houston, TX 77002 | Oil & Gas Operator | Apr 2026 |
| 21193 | Paloma Resources Inc | Roswell, NM 88201 | Oil & Gas Operator | Dec 1998 |
| 21194 | Paloma Resources, LLC | Houston, TX 77002 | Oil & Gas Operator | Jun 2018 |
| 21195 | Palomino Petrole | | Oil & Gas Operator | Dec 1995 |
| 21196 | Palomino Petroleum | Newton, KS 67114 | Oil Operator | Oct 2003 |
| 21197 | Palomino Petroleum Inc | Newton, KS 67114 | Oil & Gas Operator | Feb 2026 |
| 21198 | Palrich Oil Corporation | Abilene, TX 79601 | Oil & Gas Operator | Apr 2004 |
| 21199 | Paluca Petroleum Inc | Holdenville, OK 74848 | Oil & Gas Operator | Feb 2026 |
| 21200 | Paluxy Oil & Gas, LLC | Forney, TX 75126 | Oil & Gas Operator | Jun 2026 |