| 1201 | Chemily Management Company | Cypress, TX 77429 | Oil & Gas Operator | Apr 2023 |
| 1202 | Chen K Wendell | Arlington, TX 76016-2555 | Oil & Gas Operator | Mar 2015 |
| 1203 | Chenango Oil And Gas Co. | Groves, TX 77619 | Oil & Gas Operator | Jul 2025 |
| 1204 | Chenhall Billy J | Haskell, OK 74436-8733 | Oil & Gas Operator | Sep 2015 |
| 1205 | Cheniere Petroleum Corporation | | Oil & Gas Operator | Feb 1989 |
| 1206 | Chenoweth, Dean | Haviland, KS 67059 | Oil Operator | Jun 1994 |
| 1207 | Chenoweth, Grover | Marble Falls, TX 78654 | Oil & Gas Operator | Dec 2024 |
| 1208 | Cher Oil Company LTD | Ripley, OK 74062 | Oil & Gas Operator | May 2025 |
| 1209 | Cherco Properties, Inc. | Tyler, TX 75702 | Oil & Gas Operator | Nov 1999 |
| 1210 | Chermac Energy Corporation | Edmond, OK 73083 | Oil & Gas Operator | Apr 2020 |
| 1211 | Cherokee Basin Pipeline LLC | Mason, MI 48854 | Gas Operator | Mar 2025 |
| 1212 | Cherokee DRLG. & Dev. Corp. | Winnetka, IL 60093 | Oil & Gas Operator | Jan 2003 |
| 1213 | Cherokee Energy | | Oil & Gas Operator | Oct 1988 |
| 1214 | Cherokee Oil | | Oil Operator | Mar 2025 |
| 1215 | Cherokee Oil Production Inc | Wichita, KS 67230 | Oil & Gas Operator | Jan 1997 |
| 1216 | Cherokee Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Mar 2015 |
| 1217 | Cherokee Production Corp. | Greenville, TX 75401 | Oil & Gas Operator | Jul 2025 |
| 1218 | Cherokee Production LLC | Goliad, TX 77963 | Oil Operator | Jul 2025 |
| 1219 | Cherokee Resources Inc | | Oil & Gas Operator | Mar 1996 |
| 1220 | Cherokee Royalties & Minerals Inc | Duncan, OK 73533 | Oil & Gas Operator | May 2025 |
| 1221 | Cherokee Valley | | Oil Operator | May 1993 |
| 1222 | Cherokee Wells LLC | Fredonia, KS 66736 | Oil & Gas Operator | Mar 2025 |
| 1223 | Cherokeenrg LLC | Neodesha, KS 66757 | Oil & Gas Operator | Dec 2019 |
| 1224 | Cherry Oil & Gas | Luling, TX 78648 | Oil & Gas Operator | Dec 2000 |
| 1225 | Cherry Oil & Gas, Inc | | Oil & Gas Operator | Dec 2023 |
| 1226 | Cherry, Charles L. & Assoc., Inc. | | Oil & Gas Operator | Oct 1989 |
| 1227 | Cherry, William H., Inc. | Oklahoma City, OK 73125 | Oil & Gas Operator | Mar 2015 |
| 1228 | Cherryvale Gas Co. | Cherryvale, KS 67335 | Oil Operator | Jan 2002 |
| 1229 | Chesapeake Appalachia LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | May 2025 |
| 1230 | Chesapeake Energy | | Oil & Gas Operator | Dec 2009 |
| 1231 | Chesapeake Energy Ma | | Gas Operator | Jun 2016 |
| 1232 | Chesapeake Energy Marketing, Inc. | | Oil & Gas Operator | Jan 2025 |
| 1233 | Chesapeake Exploration LLC | Oklahoma City, OK 731540496 | Oil & Gas Operator | Jul 2020 |
| 1234 | Chesapeake Operating LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | Jul 2025 |
| 1235 | Chesapeake Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Mar 2025 |
| 1236 | Chesapeake Permian LP | Oklahoma City, OK 73118-1044 | Oil & Gas Operator | Feb 2015 |
| 1237 | Chesher Oil Company | Holliday, TX 76366 | Oil Operator | Jul 2025 |
| 1238 | Chesher, Robert | Holliday, TX 76366 | Oil & Gas Operator | Dec 1995 |
| 1239 | Chesna, Bernard | Alden, NY 14004 | Gas Operator | Dec 2024 |
| 1240 | Chesney Marilyn | | Oil Operator | Jul 1987 |
| 1241 | Chesney Oil Comp | | Oil Operator | Sep 1989 |
| 1242 | Chesnut Oil And Gas, Inc. | Corpus Chrsti, TX 78412 | Oil & Gas Operator | Jul 2025 |
| 1243 | Chesnutt Oil & Gas, Inc. | Mineral, TX 78125 | Oil & Gas Operator | Jul 2025 |
| 1244 | Chessher, Otto Drilling Company | Kearney, MO 64060 | Oil & Gas Operator | Dec 2013 |
| 1245 | Chester F. Dolley | | Oil & Gas Operator | Dec 1986 |
| 1246 | Chester Floyd | | Oil Operator | Feb 1996 |
| 1247 | Chester Oil Company | Wetumka, OK 74883-6227 | Oil & Gas Operator | Apr 2025 |
| 1248 | Chestnut Explor. And Prod., Inc. | Dallas, TX 75208 | Oil & Gas Operator | Jul 2025 |
| 1249 | Chestnut Exploration And Production, Inc. | Richardson, TX 78081 | Oil & Gas Operator | Nov 2020 |
| 1250 | Chestnut Mountain Energy, LLC | Fort Worth, TX 76101 | Oil & Gas Operator | Jul 2025 |
| 1251 | Chestnut Oil LLC | Clarendon, PA 16313-2001 | Oil & Gas Operator | Dec 2022 |
| 1252 | Chestnut Operating, LLC | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 1253 | Chestnut Petroleum, Inc. | Richardson, TX 75080 | Oil & Gas Operator | Nov 2011 |
| 1254 | Chestnut Production Company | Towanda, KS 67144 | Oil Operator | Jan 1999 |
| 1255 | Chestnut Ridge Energy Of Pa LLC | Mineral Point, PA 15942-4411 | Gas Operator | Dec 2024 |
| 1256 | Chestnut Ridge Storage LLC | San Diego, CA 92121-1008 | Gas Operator | Dec 2019 |
| 1257 | Chevron Appalachia, LLC | Corapolis, PA 15108 | Oil & Gas Operator | Jul 2020 |
| 1258 | Chevron Midcontinent, L.P. | Midland, TX 79706 | Oil & Gas Operator | Jul 2025 |
| 1259 | Chevron Oil Company | | Oil & Gas Operator | Dec 1983 |
| 1260 | Chevron Pipe Line Company | Houston, TX 77001 | Oil Operator | Feb 2015 |
| 1261 | Chevron U S A In | | Oil & Gas Operator | Sep 2000 |
| 1262 | Chevron U. S. A., Inc. -Ca | | Oil & Gas Operator | Jan 2000 |
| 1263 | Chevron U. S. A., Inc. -TX | | Oil & Gas Operator | Dec 2004 |
| 1264 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Jul 2025 |
| 1265 | Chew Bill Incorp | | Oil & Gas Operator | Mar 1994 |
| 1266 | Chew, Bill, Inc. | Hutchinson, KS 67502 | Oil Operator | Sep 2002 |
| 1267 | Chew-Coast & Sons | Bartlesville, OK 74006-0407 | Gas Operator | Dec 2012 |
| 1268 | Cheyenne Explora | | Oil Operator | Jun 1983 |
| 1269 | Cheyenne Minerals, Inc. | Houston, TX 77030 | Oil & Gas Operator | Jun 2001 |
| 1270 | Cheyenne Oil Services, Inc. | Ness City, KS 67560 | Oil Operator | Nov 2023 |
| 1271 | Cheyenne Petroleum Company | Oklahoma City, OK 73134 | Oil & Gas Operator | Jul 2025 |
| 1272 | Cheyenne River LLC | Dallas, TX 75204 | Oil & Gas Operator | Nov 2018 |
| 1273 | Chi Operating, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jul 2025 |
| 1274 | Chica Oil Company | Lago VIsta, TX 78645-6561 | Oil & Gas Operator | Mar 2001 |
| 1275 | Chicken Coop, Inc., The | Hondo, TX 78861 | Oil & Gas Operator | Jan 2015 |
| 1276 | Chico Production Corp. | Bowie, TX 76230 | Oil & Gas Operator | Jul 2025 |
| 1277 | Chief Drilling C | | Oil & Gas Operator | Feb 1995 |
| 1278 | Chief Drilling Company | | Oil Operator | Jun 1985 |
| 1279 | Chief Drilling, Inc. | Wichita, KS 67202 | Oil & Gas Operator | Sep 1997 |
| 1280 | Chief Oil & Gas LLC | Dallas, TX 75225 | Oil & Gas Operator | Feb 2022 |
| 1281 | Chief Operating Company | Houston, TX 77070 | Oil & Gas Operator | Feb 2004 |
| 1282 | Chief Operating LLC | Dallas, TX 75225 | Gas Operator | Mar 2009 |
| 1283 | Chief Petroleum Company | Dallas, TX 75244 | Oil & Gas Operator | Jul 1997 |
| 1284 | Chief Well Service Inc | Drumright, OK 74030 | Oil & Gas Operator | Mar 1995 |
| 1285 | Chieftain Oil Co Inc | Kiowa, KS 67070 | Oil & Gas Operator | May 2025 |
| 1286 | Childers, J. C. | Borger, TX 79008 | Oil & Gas Operator | Aug 2003 |
| 1287 | Chiles Jack Well Service | Atwood, OK 74827-0373 | Oil Operator | Apr 2014 |
| 1288 | Chiles Oil Field Supply | | Oil & Gas Operator | Jan 2025 |
| 1289 | Chiles Robert Morris | Allen, OK 74825 | Oil Operator | Apr 2025 |
| 1290 | Chiltipin Production Company | Corpus Chrsti, TX 78466 | Oil & Gas Operator | Jul 2025 |
| 1291 | Chilton Energy | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Sep 2006 |
| 1292 | China Star Oil Co., LLC | Woodway, TX 76712 | Oil & Gas Operator | Jun 2010 |
| 1293 | Chinn Exploration Company | Longview, TX 75605 | Oil & Gas Operator | Nov 2015 |
| 1294 | Chinn, Larry A | | Oil & Gas Operator | Apr 2025 |
| 1295 | Chinn, Larry E | | Oil & Gas Operator | Apr 2025 |
| 1296 | Chinn, Velma D | | Oil Operator | Mar 2015 |
| 1297 | Chinook Energy C | | Oil Operator | Jul 1991 |
| 1298 | Chiodo Corp. | San Antonio, TX 78232 | Oil & Gas Operator | Jul 2025 |
| 1299 | Chipcore LLC | Casper, WY 82601 | Oil & Gas Operator | May 2025 |
| 1300 | Chipmunk'S Oil & Gas Lease Oper., Inc. | Copan, OK 74022 | Oil Operator | Dec 1996 |