| 1101 | Petroleum Recovery & Expl Inc. | | Oil Operator | Oct 1984 |
| 1102 | Petroleum Recovery Systems, L.C. | Houston, TX 77024 | Oil Operator | Feb 2026 |
| 1103 | Petroleum Reserve Corporation | Plymouth MTNG, PA 19462 | Oil & Gas Operator | May 2008 |
| 1104 | Petroleum Resource Management Co | Fort Worth, TX 76107 | Oil & Gas Operator | Jan 2024 |
| 1105 | Petroleum Resource Management Corp | Denver, CO 80203 | Oil & Gas Operator | Dec 2025 |
| 1106 | Petroleum Resource MGMT Co TX | | Oil & Gas Operator | Sep 2020 |
| 1107 | Petroleum Resources Co | Wichita, KS 67206 | Oil & Gas Operator | May 2000 |
| 1108 | Petroleum Resources MGMT Corp. | | Oil & Gas Operator | Mar 2002 |
| 1109 | Petroleum Resources, LLC | | Oil & Gas Operator | Dec 2021 |
| 1110 | Petroleum Service Partners, Inc. | Indiana, PA 15701-0000 | Oil & Gas Operator | Dec 2021 |
| 1111 | Petroleum Technical Services Co. | Midland, TX 79707 | Oil & Gas Operator | Dec 2004 |
| 1112 | Petroleum Techno | | Oil & Gas Operator | Dec 1996 |
| 1113 | Petroleum Technologies, Inc. | Kansas City, MO 64112 | Oil & Gas Operator | Sep 2025 |
| 1114 | Petroleum Venture Capitol Corp | | Oil Operator | Jun 1980 |
| 1115 | Petroleum Well Service LLC | Silsbee, TX 77656 | Oil Operator | Feb 2026 |
| 1116 | Petrolia Drilling Corporation | | Oil & Gas Operator | Jul 2003 |
| 1117 | Petrolia Energy Corporation | Pearland, TX 77581 | Oil Operator | Jan 2024 |
| 1118 | Petrolia Group, L.L.C. | Katy, TX 77449 | Oil & Gas Operator | Feb 2026 |
| 1119 | Petromac, Inc. | Onalaska, TX 77360 | Oil & Gas Operator | Feb 2026 |
| 1120 | Petromark Energy LLC | Oklahoma City, OK 73116-7634 | Oil & Gas Operator | Jun 2000 |
| 1121 | Petromark Resources Company | Tulsa, OK 74136 | Oil & Gas Operator | Sep 1993 |
| 1122 | Petromax Oil And Gas Inc | | Oil & Gas Operator | Dec 1988 |
| 1123 | Petromerica Operating LLC | Oklahoma City, OK 73102-4613 | Oil Operator | Nov 2025 |
| 1124 | Petrominerals Corp. | | Oil & Gas Operator | Dec 2003 |
| 1125 | Petromining, Inc. | Plano, TX 75026 | Oil & Gas Operator | Feb 2026 |
| 1126 | Petron Development Company | | Oil & Gas Operator | Sep 2020 |
| 1127 | Petron Energy Inc | Dallas, TX 75252 | Oil & Gas Operator | Feb 2026 |
| 1128 | Petron Oil & Gas | Lenexa, KS 66215 | Oil & Gas Operator | Sep 2025 |
| 1129 | Petron Oil Company | Missouri City, TX 77489 | Oil & Gas Operator | Feb 2026 |
| 1130 | Petroneal Corporation | San Angelo, TX 76902 | Oil & Gas Operator | Nov 1995 |
| 1131 | Petronomics Petroleum, Inc. | Austin, TX 78734 | Oil & Gas Operator | Jan 1995 |
| 1132 | Petronomics, Inc. | Houston, TX 77074 | Oil & Gas Operator | Aug 2003 |
| 1133 | Petronova, LLC | | Gas Operator | Jul 2014 |
| 1134 | Petroplex Energy Inc. | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 1135 | Petroplex Equipment, Inc. | Midland, TX 79701 | Oil & Gas Operator | May 2019 |
| 1136 | Petropoint Energy Operating, LLC | Houston, TX 77098 | Oil & Gas Operator | Feb 2026 |
| 1137 | Petroprize | | Oil & Gas Operator | Dec 2025 |
| 1138 | Petropro Energy Partners, L.P. | Houston, TX 77024 | Oil & Gas Operator | Jan 2013 |
| 1139 | Petropro Petroleum LLC | | Oil Operator | Sep 2025 |
| 1140 | Petroquest Energy, Inc. | Lafayette, LA 70505 | Oil & Gas Operator | Feb 2001 |
| 1141 | Petroquest Energy, L.L.C. | Lafayette, LA 70505 | Oil & Gas Operator | Feb 2026 |
| 1142 | Petroquest Exploration, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Mar 2008 |
| 1143 | Petroquest Oil & Gas LLC | Wewoka, OK 74884 | Oil & Gas Operator | Dec 2025 |
| 1144 | Petroquest, LLC | El Dorado, AR 71730 | Oil & Gas Operator | Jan 2025 |
| 1145 | Petroreal Inc. | Temple, TX 76503 | Oil & Gas Operator | Feb 2026 |
| 1146 | Petrorep Inc | | Oil Operator | Oct 1998 |
| 1147 | Petrosantander (USA) Inc. | Houston, TX 77057 | Oil & Gas Operator | Sep 2025 |
| 1148 | Petrosaurus, Inc. | Somerset, TX 78069 | Oil Operator | Feb 2026 |
| 1149 | Petrosearch Operating Co, LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2026 |
| 1150 | Petroshale (Us) Inc. | | Oil & Gas Operator | Jan 2026 |
| 1151 | Petroshare Corporation | | Oil & Gas Operator | Jan 2024 |
| 1152 | Petrosil Resources Inc. | | Oil & Gas Operator | Oct 1981 |
| 1153 | Petrosource Energy Corporation | Fort Worth, TX 76112 | Oil & Gas Operator | Feb 2026 |
| 1154 | Petrosource Production Co. L.P. | Midland, TX 79701 | Oil & Gas Operator | Nov 2007 |
| 1155 | Petrosource Production Co., LLC | Midland, TX 79705 | Oil & Gas Operator | Feb 2026 |
| 1156 | Petrotech Resources Corp | Glasgow, KY 42141 | Oil & Gas Operator | Dec 2022 |
| 1157 | Petrotex Engineering Company | Cypress, TX 77429 | Oil & Gas Operator | Feb 2026 |
| 1158 | Petrotex Louisiana Company | | Oil & Gas Operator | Aug 1998 |
| 1159 | Petrotex, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Aug 2003 |
| 1160 | Petrotx Operating, LLC | Kingwood, TX 77339 | Oil & Gas Operator | Feb 2026 |
| 1161 | Petroventures In | | Oil Operator | Apr 1987 |
| 1162 | Petrovest International | Encino, CA 91436 | Gas Operator | Jun 1982 |
| 1163 | Petrovybe Opco LLC | Plano, TX 75093 | Oil & Gas Operator | Feb 2026 |
| 1164 | Petrowater Solutions LLC | Oklahoma City, OK 73102-5643 | Oil Operator | Aug 2016 |
| 1165 | Petrowest | | Oil & Gas Operator | Dec 2001 |
| 1166 | Petrowest Energy Co Inc | | Oil & Gas Operator | Dec 2024 |
| 1167 | Petrox Petroleum Company | Great Falls, MT 59403-0989 | Oil Operator | Dec 2025 |
| 1168 | Petrox Resources Inc | Meeker, CO 81641 | Oil & Gas Operator | Dec 2025 |
| 1169 | Petrox, Inc | Streetsboro, OH 44241 | Oil & Gas Operator | Dec 2024 |
| 1170 | Petrus Oil Company, L.P. | | Oil & Gas Operator | Dec 1989 |
| 1171 | Petrus Operating Co., Inc. | | Oil & Gas Operator | Dec 1986 |
| 1172 | Petsec Energy Inc. | | Oil & Gas Operator | Sep 2012 |
| 1173 | Pettigrew Pumping Service Inc | Ravenna, OH 44266 | Oil & Gas Operator | Dec 2024 |
| 1174 | Pettit Charles Oil Company | Okmulgee, OK 74447-4226 | Oil & Gas Operator | Sep 2018 |
| 1175 | Petx Operating LLC | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 1176 | Petx Petroleum C | | Oil Operator | Nov 1993 |
| 1177 | Pexco, Inc. (I) | Corpus Chrsti, TX 78414 | Oil & Gas Operator | Nov 2001 |
| 1178 | PF Operating Company | Wichita Falls, TX 76302 | Oil & Gas Operator | Aug 2003 |
| 1179 | Pfed Operating | Keller, TX 76248 | Oil Operator | Feb 2026 |
| 1180 | Pfeifer Explorations, LLC | Hays, KS 67601 | Oil Operator | Sep 2025 |
| 1181 | Pfog Operations, LLC | Midland, TX 79710 | Oil Operator | Feb 2026 |
| 1182 | Pfrang, Derek | Wetmore, KS 66550 | Oil Operator | Jul 2022 |
| 1183 | PG&E Resources Company | Houston, TX 77042 | Oil & Gas Operator | May 1995 |
| 1184 | PG&E Resources Offshore Company | Dallas, TX 75206 | Oil & Gas Operator | Oct 1994 |
| 1185 | PG-M International Operating,LLC | Borger, TX 79008 | Oil & Gas Operator | Feb 2026 |
| 1186 | PGC LLC | Newcastle, WY 92701 | Oil Operator | Oct 2023 |
| 1187 | Pgi Operating, LLC | Sweetwater, TX 79556 | Oil Operator | Feb 2026 |
| 1188 | Pgo, Inc. | Houston, TX 77042 | Oil & Gas Operator | Jun 1999 |
| 1189 | PGP Operating, LLC | Vance, AL 35490 | Gas Operator | Dec 2025 |
| 1190 | PH Exploration, Inc. | Houston, TX 77008 | Oil & Gas Operator | Nov 2001 |
| 1191 | Phalanx Petroleum LLC | | Oil & Gas Operator | Jan 2025 |
| 1192 | Pharaoh & Associates, Inc. | Houston, TX 77252 | Oil & Gas Operator | Aug 2002 |
| 1193 | Pharaoh Oil & Gas, Inc. | MC Camey, TX 79752 | Oil & Gas Operator | Feb 2026 |
| 1194 | Pharaoh Oil, LLC | | Oil Operator | Jan 2025 |
| 1195 | Pharoah Bob | Maysville, OK 73057 | Oil & Gas Operator | Jul 1994 |
| 1196 | Pharyn Resources, LLC | Lenexa, KS 66219 | Oil Operator | Jun 2009 |
| 1197 | Phase III Drilling Inc | Wetumka, OK 74883-0333 | Oil & Gas Operator | Nov 2025 |
| 1198 | PHD Oil & Gas Inc | Rush Springs, OK 73082-0218 | Oil & Gas Operator | May 2021 |
| 1199 | Pheffer Oil, L.L.C. | Laredo, TX 78041 | Oil Operator | Jul 2021 |
| 1200 | Pheldon Oil Production Inc | Asher, OK 74826-2629 | Oil & Gas Operator | Nov 2025 |