| 6301 | Conquest Petroleum Inc | | Oil & Gas Operator | Nov 2014 |
| 6302 | Conquistador Petroleum,Inc. | Coleman, TX 76834 | Oil & Gas Operator | Nov 2024 |
| 6303 | Conrade Patsy | | Oil Operator | Jan 1986 |
| 6304 | Cons Asset MGMT SVCS E&P Op, LLC | Houston, TX 77002 | Oil Operator | Dec 2017 |
| 6305 | Considine, Barry | Burrton, KS 67020 | Gas Operator | Jul 2024 |
| 6306 | Consol Gas Company | Canonsburg, PA 15317 | Oil & Gas Operator | Dec 2021 |
| 6307 | Consol Oil Recvry/Ener Co Inc | Cushing, OK 74023 | Oil Operator | Nov 1993 |
| 6308 | Consolidated Energy Inv., Inc. | | Oil & Gas Operator | Oct 2013 |
| 6309 | Consolidated Energy Res., Inc. | | Oil Operator | Jun 1992 |
| 6310 | Consolidated Engy Reserve Inc | | Oil & Gas Operator | Jul 1991 |
| 6311 | Consolidated Exploration Company | Nichols Hill, OK 73116 | Oil & Gas Operator | Apr 2015 |
| 6312 | Consolidated Gas & Energy Corp. | San Diego, CA 92130 | Oil Operator | Apr 2012 |
| 6313 | Consolidated Investments | Seminole, OK 74868 | Oil & Gas Operator | Sep 2024 |
| 6314 | Consolidated Natural Res. Corp. | Kilgore, TX 75662 | Oil & Gas Operator | Jan 2016 |
| 6315 | Consolidated Oil | | Oil Operator | Jul 1996 |
| 6316 | Consolidated Oil & Gas Inc | Wichita, KS 67202 | Oil & Gas Operator | Dec 2012 |
| 6317 | Consolidated Oil Well Services, Inc | Chanute, KS 66720 | Oil Operator | Jan 2008 |
| 6318 | Consolidated Peto Equity LTD | La Crescenta, CA 91214 | Oil & Gas Operator | Dec 1996 |
| 6319 | Consolidated Petro PTNRS I, LLC | Austin, TX 78759 | Oil & Gas Operator | Mar 2003 |
| 6320 | Consolidated Petrol Corp | Columbus, OH 43215 | Oil & Gas Operator | Dec 1995 |
| 6321 | Consolidated Properties | Tulsa, OK 74129 | Oil & Gas Operator | Jan 2017 |
| 6322 | Consolidated Res Of Amer | Cincinnati, OH 45208 | Oil & Gas Operator | Dec 1996 |
| 6323 | Consolidated Resources Corp | Shawnee, OK 74801 | Oil & Gas Operator | Sep 2014 |
| 6324 | Consolidated Resources Inc | | Oil & Gas Operator | May 2004 |
| 6325 | Consolidation Coal Company | Saint Clairsville, OH 43950-8742 | Oil & Gas Operator | Dec 2020 |
| 6326 | Consortium Energy LLC | Tallmadge, OH 44278 | Oil & Gas Operator | Dec 2023 |
| 6327 | Constitution Gas Transport Co., Inc. | Salt Lake City, UT 84124-1110 | Gas Operator | Jun 2012 |
| 6328 | Constitution Investment Co LLC | Marietta, OH 45750 | Oil & Gas Operator | Dec 2023 |
| 6329 | Constitution Petroleum | Salt Lake City, UT 84124-1110-1110 | Oil & Gas Operator | Dec 2008 |
| 6330 | Consumers Energy Co | | Oil & Gas Operator | Apr 2010 |
| 6331 | Contango Midstream Company | Houston, TX 77002-3023 | Oil & Gas Operator | Sep 2024 |
| 6332 | Contango Operators, Inc. | Houston, TX 77098 | Oil & Gas Operator | Dec 2022 |
| 6333 | Contango Operators, LLC | | Oil & Gas Operator | May 2024 |
| 6334 | Contango Resources Company | | Oil & Gas Operator | Mar 2009 |
| 6335 | Contango Resources LLC | Houston, TX 77002 | Oil & Gas Operator | Nov 2024 |
| 6336 | Contango Resources, Inc. | Houston, TX 77002 | Oil & Gas Operator | Oct 2024 |
| 6337 | Contango Rocky Mountain Inc | Houston, TX 77002 | Oil & Gas Operator | Jan 2020 |
| 6338 | Continental Brok | | Oil Operator | Oct 1994 |
| 6339 | Continental Ener | | Oil & Gas Operator | Dec 1996 |
| 6340 | Continental Energy | Garden City, KS 67846-0918 | Oil & Gas Operator | Jul 2017 |
| 6341 | Continental Energy Operating LLC | Tulsa, OK 74114-1302 | Oil & Gas Operator | Sep 2024 |
| 6342 | Continental Expl | | Oil Operator | Sep 1991 |
| 6343 | Continental Exploration, Inc. | | Oil Operator | Dec 2001 |
| 6344 | Continental Exploration, L.L.C. | Lufkin, TX 75915 | Oil & Gas Operator | Nov 2024 |
| 6345 | Continental Export Corporation | Bowie, TX 76230 | Oil & Gas Operator | Sep 2013 |
| 6346 | Continental Gas Inc | Enid, OK 73702-5103 | Oil & Gas Operator | Apr 2012 |
| 6347 | Continental Industries LC | Casper, WY 82602 | Oil & Gas Operator | Feb 2008 |
| 6348 | Continental Natural Gas, Inc. | Tulsa, OK 74121 | Oil & Gas Operator | Jun 2018 |
| 6349 | Continental Oil | | Oil Operator | Jun 1985 |
| 6350 | Continental Oil & Gas Co. Inc. | | Oil & Gas Operator | Jul 1997 |
| 6351 | Continental Oil & Refining Co | Catoosa, OK 74015-0831 | Oil & Gas Operator | Aug 2024 |
| 6352 | Continental Oil Co. | Durango, CO 81301 | Oil & Gas Operator | Dec 1983 |
| 6353 | Continental Operating Co. | Houston, TX 77024 | Oil & Gas Operator | Nov 2024 |
| 6354 | Continental Petroleum, LLC | | Oil & Gas Operator | Oct 2013 |
| 6355 | Continental Production Co LLC | Greenwood VIllage, CO 80155 | Oil & Gas Operator | Aug 2012 |
| 6356 | Continental Resources, Inc. | Oklahoma City, OK 73126 | Oil & Gas Operator | Nov 2024 |
| 6357 | Continental Shale, LLC | Mountain Home, AR 72653 | Gas Operator | Jul 2024 |
| 6358 | Continental Trend Resources, Inc | Oklahoma City, OK 73126 | Oil & Gas Operator | Nov 2024 |
| 6359 | Continental-Emsco Co | Hobbs, NM 88241 | Oil & Gas Operator | Jun 1995 |
| 6360 | Continual Oil & Gas, Inc. | Abilene, TX 79602 | Oil & Gas Operator | Nov 2024 |
| 6361 | Continuum Midstream LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jun 2024 |
| 6362 | Contour Energy E & P, Inc. | Houston, TX 77002 | Oil & Gas Operator | Oct 2002 |
| 6363 | Contour Energy E & P, LLC | Tulsa, OK 74103 | Oil & Gas Operator | Aug 2003 |
| 6364 | Contour Expl And Prod, LLC | Dallas, TX 75204 | Oil & Gas Operator | Nov 2024 |
| 6365 | Contour Oil & Gas, LLC | Abilene, TX 79602 | Oil & Gas Operator | Dec 2015 |
| 6366 | Contract Energy, L.L.C. | Houston, TX 77057 | Oil & Gas Operator | Oct 2012 |
| 6367 | Contract Oil & Gas Service Co. | Tomball, TX 77375 | Oil & Gas Operator | Apr 2007 |
| 6368 | Contrast Energy, LLC | Tulsa, OK 74119 | Oil & Gas Operator | Nov 2024 |
| 6369 | Contreras Al Consultants Inc | Oklahoma City, OK 73113-0762 | Oil & Gas Operator | Oct 2020 |
| 6370 | Converse Oil Corp. | | Oil Operator | Dec 2010 |
| 6371 | Convert Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Dec 2019 |
| 6372 | Convest Energy Corporation | Houston, TX 77057 | Oil & Gas Operator | Sep 2014 |
| 6373 | Conway Energy Oper Services Inc. | San Diego, TX 78384 | Oil & Gas Operator | Nov 2024 |
| 6374 | Cook D L | Holliday, TX 76366 | Oil & Gas Operator | Dec 2008 |
| 6375 | Cook Energy Inc | Cooksburg, PA 16217-0054 | Oil & Gas Operator | Dec 2004 |
| 6376 | Cook Exploration Co. | Longview, TX 75602 | Oil & Gas Operator | Nov 2024 |
| 6377 | Cook Inlet Energy, LLC. | | Oil & Gas Operator | Sep 2024 |
| 6378 | Cook L D | Bartlesville, OK 74005-2306 | Oil & Gas Operator | Nov 2005 |
| 6379 | Cook Marshall Operating, Inc. | Austin, TX 78746 | Oil & Gas Operator | Mar 1995 |
| 6380 | Cook Oil Company | Wewoka, OK 74884 | Oil & Gas Operator | Sep 2015 |
| 6381 | Cook Operating C | | Oil Operator | May 1987 |
| 6382 | Cook Production LLC | | Oil Operator | Jul 2024 |
| 6383 | Cook Robert L | Rockwall, TX 75087-0892 | Oil & Gas Operator | Mar 2015 |
| 6384 | Cook W R Inc | Duncan, OK 73534-0069 | Oil & Gas Operator | Jun 2000 |
| 6385 | Cook William Glenn | Wewoka, OK 74884-0727 | Oil & Gas Operator | Nov 2000 |
| 6386 | Cook, James A. | Augusta, KS 67010 | Oil Operator | Jul 1997 |
| 6387 | Cook, Kenneth D. Operator | Midland, TX 79707 | Oil Operator | Nov 2024 |
| 6388 | Cook, Lee J. | Penn Yan, NY 14527 | Gas Operator | Dec 2023 |
| 6389 | Cooke & Montague Oper. Co., Inc. | Flower Mound, TX 75028 | Oil & Gas Operator | Nov 2024 |
| 6390 | Cooke County Production Company | Shawnee, OK 74801-1800 | Oil & Gas Operator | Jan 2022 |
| 6391 | Cooke Energy Company | San Antonio, TX 78250 | Oil & Gas Operator | Jul 2012 |
| 6392 | Cooke, Donald E./Lee Wanda | Coffeyville, KS 67331 | Oil Operator | Dec 2001 |
| 6393 | Cooke, Kenny D. Operating | Ballinger, TX 76821 | Oil & Gas Operator | Mar 2004 |
| 6394 | Coolidge, G. B., Inc. | Shelby, MT 59474 | Oil & Gas Operator | Aug 2016 |
| 6395 | Coolidge, Paul | | Oil Operator | Jun 2024 |
| 6396 | Coolidge, Timothy J & Billiette Nebel | Kevin, MT 59454 | Oil Operator | Jun 2024 |
| 6397 | Coolspring Gas & Oil Co LLC | Coolspring, PA 15730-8524 | Gas Operator | Dec 2023 |
| 6398 | Coomer, Mitchell | Columbia, KY 42728 | Oil Operator | Dec 2021 |
| 6399 | Coon Creek Gas Inc | | Oil & Gas Operator | Mar 2014 |
| 6400 | Coon Creek Transmission LLC | Barnsdall, OK 74002 | Oil & Gas Operator | May 2018 |