| 1201 | Phoenix Oil Corp | Wichita, KS 67201 | Oil & Gas Operator | Jan 1999 |
| 1202 | Phoenix Oper Co Inc-New Amer | | Oil Operator | Jul 1994 |
| 1203 | Phoenix Operating Co. Of Texas | | Oil Operator | Jul 1995 |
| 1204 | Phoenix Operating Company Of TX. | Dallas, TX 75206 | Oil & Gas Operator | Jun 1995 |
| 1205 | Phoenix Operating Company, Inc. | Shreveport, LA 71161 | Oil & Gas Operator | Mar 2015 |
| 1206 | Phoenix Operating LLC | Denver, CO 80237 | Oil & Gas Operator | Apr 2026 |
| 1207 | Phoenix Operating, Inc | | Oil & Gas Operator | Mar 2026 |
| 1208 | Phoenix Opr Co Inc - West End | | Oil Operator | Dec 1992 |
| 1209 | Phoenix Opr Co Inc-Acc | | Oil Operator | Dec 1992 |
| 1210 | Phoenix Opr Co Inc-Amsterdam | | Oil Operator | Nov 1994 |
| 1211 | Phoenix Opr Co Inc-Broadway | | Oil Operator | Dec 1992 |
| 1212 | Phoenix Opr Co Inc-Caddo | | Oil Operator | Dec 1992 |
| 1213 | Phoenix Opr Co Inc-DS DRLG | | Oil Operator | May 1994 |
| 1214 | Phoenix Opr Co Inc-HGC 1985 | | Oil Operator | Dec 1992 |
| 1215 | Phoenix Opr Co Inc-La Petro As | | Oil Operator | Dec 1992 |
| 1216 | Phoenix Opr Co Inc-Lex 83 | | Oil Operator | Feb 1993 |
| 1217 | Phoenix Opr Co Inc-Nac | | Oil Operator | Dec 1992 |
| 1218 | Phoenix Opr Co Inc-New Amer 85 | | Oil Operator | Dec 1992 |
| 1219 | Phoenix Opr Co Inc-Northern La | | Oil Operator | Dec 1992 |
| 1220 | Phoenix Opr Co Inc-Oc Yacht 85 | | Oil Operator | Dec 1992 |
| 1221 | Phoenix Opr Co Inc-Oc Yacht II | | Oil Operator | Dec 1992 |
| 1222 | Phoenix Opr Co Inc-Ocean Yacht | | Oil Operator | Dec 1992 |
| 1223 | Phoenix Opr Co Inc-Petrovest | | Oil Operator | Dec 1992 |
| 1224 | Phoenix Opr Co Inc-PML | | Oil Operator | Dec 1992 |
| 1225 | Phoenix Opr Co Inc-RBF 1985 | | Oil Operator | Dec 1992 |
| 1226 | Phoenix Opr Co Inc-Rvside '85 | | Oil Operator | Dec 1992 |
| 1227 | Phoenix Opr Co Inc-Salem 1985 | | Oil Operator | Dec 1992 |
| 1228 | Phoenix Opr Co Inc-Shemen | | Oil Operator | Dec 1992 |
| 1229 | Phoenix Opr Co Inc-TG I | | Oil Operator | Dec 1992 |
| 1230 | Phoenix Opr Co Inc-TG II | | Oil Operator | Dec 1992 |
| 1231 | Phoenix Opr Co Inc-Vista | | Oil Operator | Dec 1992 |
| 1232 | Phoenix Opr Co Inc-York | | Oil Operator | Dec 1992 |
| 1233 | Phoenix Petrocorp, Inc. | McKinney, TX 75070 | Oil & Gas Operator | Mar 2026 |
| 1234 | Phoenix Petroleum Corp. | | Gas Operator | Aug 1985 |
| 1235 | Phoenix Petroleum, LLC | | Oil & Gas Operator | Apr 2026 |
| 1236 | Phoenix Production Company | Cody, WY 82414-3607 | Oil & Gas Operator | Oct 2023 |
| 1237 | Phoenix Production Inc | Burneyville, OK 73430-2158 | Oil & Gas Operator | Feb 2025 |
| 1238 | Phoenix Resources Co | | Oil & Gas Operator | Jun 1984 |
| 1239 | Phoenix Resources LLC | Longview, TX 75604 | Oil & Gas Operator | Jul 2022 |
| 1240 | Phoenix Resources-Alabama, LLC | | Gas Operator | Nov 2004 |
| 1241 | Phoenix-Vi-Roi | | Oil & Gas Operator | Mar 1986 |
| 1242 | PHX Energy, LLC | Artesia, NM 88211 | Oil & Gas Operator | Mar 2026 |
| 1243 | Phylko Energy Corporation | Houston, TX 77056 | Oil & Gas Operator | Aug 2003 |
| 1244 | Pi Energy, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Jun 2026 |
| 1245 | Piatt Enterprises LLC | Graysville, OH 45734 | Oil & Gas Operator | Dec 2025 |
| 1246 | Pic Inc | Ponca City, OK 74602 | Oil & Gas Operator | Jan 2013 |
| 1247 | Picayune Resources, Inc | Lexington, KY 40509 | Oil & Gas Operator | Dec 2023 |
| 1248 | Piceance Energy LLC | | Oil & Gas Operator | Feb 2026 |
| 1249 | Pices Energy Production Co. | Alva, OK 73717-9512 | Oil & Gas Operator | Apr 2014 |
| 1250 | Pickelsimer Kenny | Wilson, OK 73463-6502 | Oil & Gas Operator | Aug 2014 |
| 1251 | Pickens Company, Inc., The | Dallas, TX 75225 | Oil & Gas Operator | Jan 2025 |
| 1252 | Pickett Brothers | | Oil Operator | Dec 1995 |
| 1253 | Pickett Oil Co. | Gonzales, TX 78629 | Oil & Gas Operator | Oct 2019 |
| 1254 | Pickett, D. W. | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Sep 2004 |
| 1255 | Pickrell Drilling Co., Inc. | Wichita, KS 67213 | Oil & Gas Operator | Feb 2026 |
| 1256 | Picosa, L.L.C. | Carrizo SPGS, TX 78834 | Oil & Gas Operator | Jun 2026 |
| 1257 | Pie La Operating, LLC | | Oil & Gas Operator | Jan 2025 |
| 1258 | Pie Operating, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2026 |
| 1259 | Piedmont Resources Corporation | Etna, NY 13062 | Oil Operator | Dec 2024 |
| 1260 | Piedra Operating, LLC | Denver, CO 80202 | Oil & Gas Operator | May 2023 |
| 1261 | Pier Oil Company Inc. | | Oil Operator | Dec 2025 |
| 1262 | Pieratt, Ralph | Burlington, KS 66839 | Oil Operator | Aug 1987 |
| 1263 | Pierce & Petersen | Warren, PA 16365 | Oil & Gas Operator | Dec 2025 |
| 1264 | Pierce G R Oil Properties Inc | Oklahoma City, OK 73106 | Oil Operator | Feb 1999 |
| 1265 | Pierce Investments | Weatherford, OK 73096 | Oil Operator | Jul 1994 |
| 1266 | Pierce James E | Warren, PA 16365-0627 | Oil & Gas Operator | Dec 2011 |
| 1267 | Pierce Junction Petroleum Inc. | Houston, TX 77002 | Oil & Gas Operator | May 2010 |
| 1268 | Pierce L H | Healdton, OK 73438-9530 | Oil Operator | Jan 1996 |
| 1269 | Pierce O M Operations | Duncan, OK 73533 | Oil & Gas Operator | Nov 1998 |
| 1270 | Pierce Oil Company | Skiatook, OK 74070 | Oil & Gas Operator | Nov 2017 |
| 1271 | Pierce Operating Company, L.L.C. | Bryan, TX 77808 | Oil & Gas Operator | Dec 2018 |
| 1272 | Pierce Patsey R The Estate Of | Duncan, OK 73533-4900 | Oil Operator | Mar 2007 |
| 1273 | Pierce Production Company | Eunice, NM 88231 | Oil & Gas Operator | Oct 2012 |
| 1274 | Pierce Production Company, LLC | Midland, TX 79702 | Oil & Gas Operator | Jun 2026 |
| 1275 | Pierce, Ray A. | Eunice, NM 88231 | Oil & Gas Operator | Nov 2004 |
| 1276 | Pierco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Jun 2026 |
| 1277 | Pierre Petroleum Corp. | Borger, TX 79007 | Oil & Gas Operator | Feb 1997 |
| 1278 | Piersol Oil & Gas Company | Belpre, OH 45714 | Oil & Gas Operator | Dec 2021 |
| 1279 | Pierson Max S | Bartlesville, OK 74003-5909 | Oil Operator | Sep 2020 |
| 1280 | Pike Oil & Gas Inc | Pittsfield, IL 62363 | Oil & Gas Operator | Oct 2020 |
| 1281 | Pikeco Inc | Whitesboro, TX 76273 | Oil & Gas Operator | Nov 2001 |
| 1282 | Piland Resources | | Oil & Gas Operator | Mar 2022 |
| 1283 | Pilgrim & Smith Inc | Tulsa, OK 74152 | Oil & Gas Operator | Apr 2015 |
| 1284 | Pilgrim Energy Partners L.L.C. | Fairfield, IL 62837 | Oil Operator | Jun 2026 |
| 1285 | Pillans, Benjamin P. | Abilene, TX 79605 | Gas Operator | Aug 2012 |
| 1286 | Pillar Efs, LLC | Irving, TX 75039 | Oil & Gas Operator | Jun 2026 |
| 1287 | Pillar Energy Pa LLC | Charleston, WV 25312-5987 | Oil & Gas Operator | Dec 2025 |
| 1288 | Pillar Energy, LLC | Charleston, WV 25312-5987 | Oil & Gas Operator | Dec 2025 |
| 1289 | Pillers Chris | Skiatook, OK 74070-1811 | Oil Operator | Feb 2026 |
| 1290 | Pillows, Burl A. | Houston, TX 77062 | Oil & Gas Operator | Jun 2026 |
| 1291 | Pilot Energy LLC | Zanesville, OH 43701 | Oil & Gas Operator | Dec 2013 |
| 1292 | Pilot Exploration Company | Okmulgee, OK 74447 | Oil & Gas Operator | Jan 2011 |
| 1293 | Pilot Resources, Inc. | | Oil & Gas Operator | May 2013 |
| 1294 | Pima Energy, LLC | Knott, TX 79748 | Oil & Gas Operator | Jun 2026 |
| 1295 | Pin Oak Energy Partners LLC | Akron, OH 44311 | Oil & Gas Operator | Mar 2026 |
| 1296 | Pin Oak Operating, LLC | | Gas Operator | Dec 2021 |
| 1297 | Pin Oak Petroleum Inc | Dallas, TX 75251 | Oil & Gas Operator | Dec 1989 |
| 1298 | Pine City Gas LLC | Lucinda, PA 16235-0060 | Oil & Gas Operator | Dec 2025 |
| 1299 | Pine Creek Operating LLC | Colorado Spri, CO 80903 | Oil & Gas Operator | Jul 2021 |
| 1300 | Pine Haven Resources LLC | Boulder, CO 80305 | Oil Operator | Mar 2026 |