| 7301 | D. J. Hatfield | | Oil & Gas Operator | Dec 1994 |
| 7302 | D. J. Pickrell Operator | | Gas Operator | Dec 2012 |
| 7303 | D. J. Simmons & Co. Of La. | | Gas Operator | Nov 1996 |
| 7304 | D. Jackson Rentals LLC | Easton, KS 66020 | Oil Operator | Jun 2025 |
| 7305 | D. K. Boyd Oil & Gas Co., Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 1999 |
| 7306 | D. L. & Barbara W. Chiles | | Oil Operator | Jan 2025 |
| 7307 | D. L. Gish | | Oil Operator | Mar 1992 |
| 7308 | D. L. Gish Oil Partnership | | Oil Operator | Feb 1989 |
| 7309 | D. L. Gish Oil, Inc. | | Oil Operator | Jul 1998 |
| 7310 | D. L. Gish, Inc. | | Oil Operator | Jun 1990 |
| 7311 | D. L. Trainer | | Oil Operator | Mar 1991 |
| 7312 | D. O. G. Operating, LLC | Port Aransas, TX 78373 | Oil & Gas Operator | Oct 2025 |
| 7313 | D. R. Lauck Oil Co., Inc. | Wichita, KS 67206 | Oil & Gas Operator | Jul 2019 |
| 7314 | D. S. Owens | | Oil & Gas Operator | Dec 1991 |
| 7315 | D. Shel Oil, Inc. | Gonzales, TX 78629 | Oil Operator | Oct 2025 |
| 7316 | D. W. Chumley, Jr. | | Oil & Gas Operator | Dec 2024 |
| 7317 | D. W. Elliott Operating Acct | | Oil & Gas Operator | Dec 1991 |
| 7318 | D. W. Tanner | | Oil & Gas Operator | May 2000 |
| 7319 | D.C. Oil | Natalia, TX 78059 | Oil Operator | Oct 2025 |
| 7320 | D.C.Bintliff-McCormick Oper Co | | Oil & Gas Operator | May 1984 |
| 7321 | D.J. & T. Energy | Abilene, TX 79601 | Oil & Gas Operator | Oct 2025 |
| 7322 | D.J.F. Petroleum Corporation | | Oil & Gas Operator | Oct 1992 |
| 7323 | D.J.F. Services, Inc. | Holdenville, OK 74848 | Oil & Gas Operator | Oct 2025 |
| 7324 | D.K. Rush Oil Co., LLC | El Dorado, KS 67042 | Oil Operator | Jun 2025 |
| 7325 | D.K.D. | Merkel, TX 79536 | Oil & Gas Operator | Oct 2025 |
| 7326 | D.M. Well Service | | Oil Operator | Dec 2019 |
| 7327 | D.N.I. | Bangs, TX 76823 | Oil & Gas Operator | Oct 2025 |
| 7328 | D.O.E. Energy | Palestine, TX 75801 | Oil & Gas Operator | Oct 2025 |
| 7329 | D.T. Inc. | Abilene, TX 79608 | Oil & Gas Operator | Oct 2025 |
| 7330 | D.W.P. Production | Perryton, TX 79070 | Oil & Gas Operator | Nov 2020 |
| 7331 | D.W.R. Oil Properties, Inc. | Merkel, TX 79536 | Oil & Gas Operator | Aug 2025 |
| 7332 | D.W.S. Properties | Sterling, KS 67579 | Oil Operator | Mar 2006 |
| 7333 | D.Y. Exploration, Inc. | Boise, ID 83705 | Oil & Gas Operator | Oct 2025 |
| 7334 | D10 Energy LLC | Stinnett, TX 79083 | Oil & Gas Operator | Oct 2025 |
| 7335 | D90 Energy, LLC | Houston, TX 77024 | Oil & Gas Operator | Oct 2025 |
| 7336 | Da Co Petroleum, Inc. | Wann, OK 74083 | Gas Operator | Apr 2003 |
| 7337 | Da Company Petro | | Gas Operator | Jun 1995 |
| 7338 | Da Crowe & Associates, Inc | Chappell Hill, TX 77426 | Oil & Gas Operator | Sep 2010 |
| 7339 | Da Energy, LLC | Lees Summit, MO 64063 | Oil Operator | Jun 2025 |
| 7340 | Dab And Associates Inc | Crescent, OK 73028-0580 | Oil & Gas Operator | Nov 2014 |
| 7341 | Dab Limited | Oklahoma City, OK 73116-9082 | Oil & Gas Operator | Aug 2013 |
| 7342 | Dabb Energy Company | Fort Worth, TX 76132 | Oil & Gas Operator | Aug 2020 |
| 7343 | Dac Oil Corporation | | Oil & Gas Operator | Dec 1985 |
| 7344 | Dacar Energy, Inc | | Oil Operator | Dec 2015 |
| 7345 | Daco Oil | Joinerville, TX 75658 | Oil & Gas Operator | Aug 2019 |
| 7346 | Daco, Inc. | Spearman, TX 79081 | Oil & Gas Operator | Oct 2025 |
| 7347 | Dacott Oil & Gas, LLC | Pampa, TX 79065 | Oil & Gas Operator | Sep 2011 |
| 7348 | Daesung Energy Resources Inc. | Dallas, TX 75206 | Oil & Gas Operator | Oct 2025 |
| 7349 | Daf Operating, LLC | Houston, TX 77005 | Oil & Gas Operator | Oct 2025 |
| 7350 | Dahab Energy Inc. | Dallas, TX 75225 | Oil & Gas Operator | Oct 2025 |
| 7351 | Dahco Operating, LLC | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Oct 2025 |
| 7352 | Dahill Murray P | Casper, WY 82601 | Oil & Gas Operator | Jun 2007 |
| 7353 | Dahl & Smith Oil Co | Barnsdall, OK 74002 | Oil & Gas Operator | Aug 1999 |
| 7354 | Dahl Randall Lee | Barnsdall, OK 74002 | Oil Operator | May 2025 |
| 7355 | Dahl SWD Facility #1 LLC | Oklahoma City, OK 73013 | Gas Operator | Dec 2017 |
| 7356 | Dahlia Operating LLC | Petrolia, TX 76377 | Oil & Gas Operator | Apr 2018 |
| 7357 | Dailey Oil And Gas LLC | | Oil & Gas Operator | Jun 2019 |
| 7358 | Daily, Carroll | Loving, TX 76460 | Oil & Gas Operator | Sep 2023 |
| 7359 | Dain Oil | Graham, TX 76450 | Oil & Gas Operator | Dec 2007 |
| 7360 | Daisy Pointer | | Oil Operator | Jul 1999 |
| 7361 | Dakar Operating Company | Pampa, TX 79066 | Oil & Gas Operator | Dec 2001 |
| 7362 | Dakota Crude, Inc. | | Oil & Gas Operator | Aug 2025 |
| 7363 | Dakota Drilling, LLC | Wichita, KS 67205 | Oil Operator | Feb 2006 |
| 7364 | Dakota Exploration LLC | Tulsa, OK 74136 | Oil & Gas Operator | Jul 2025 |
| 7365 | Dakota Oil & Gas Co | Delmont, PA 15626-2408 | Oil & Gas Operator | Dec 2024 |
| 7366 | Dakota Oil Company | Hebbronville, TX 78361 | Oil & Gas Operator | Oct 2025 |
| 7367 | Dakota Opr Co Inc | Indiana, PA 15701-0444 | Oil & Gas Operator | Dec 1999 |
| 7368 | Dakota Production Co., Inc. | Neodesha, KS 66757 | Gas Operator | May 2025 |
| 7369 | Dakota Resources | | Oil & Gas Operator | Jan 1989 |
| 7370 | Dakota Resources, Inc | Midland, TX 79707 | Oil & Gas Operator | Jun 2025 |
| 7371 | Dakota Resources, Inc. (I) | Midland, TX 79707 | Oil & Gas Operator | Oct 2025 |
| 7372 | Dakota West Pumping, Inc. | | Oil & Gas Operator | Feb 2004 |
| 7373 | Dakota-3 E&P Company, LLC | | Oil & Gas Operator | Jan 2012 |
| 7374 | Dal-Long Oil Company | Longview, TX 75608 | Oil Operator | Feb 2001 |
| 7375 | Dalco Petroleum, Inc | | Oil & Gas Operator | Jan 2006 |
| 7376 | Dalcor Energy LLC | Duncan, OK 73534 | Oil & Gas Operator | Jun 2025 |
| 7377 | Dale E. Jackson Production Co. | | Oil Operator | Jun 2025 |
| 7378 | Dale Expl Co & R. A. Campbell | | Oil Operator | Nov 1995 |
| 7379 | Dale Exploration Company | | Oil & Gas Operator | May 2004 |
| 7380 | Dale George | Elmore City, OK 73433 | Oil & Gas Operator | Aug 2022 |
| 7381 | Dale Jimmy | Davis, OK 73030 | Oil & Gas Operator | Mar 2015 |
| 7382 | Dale O. Reese | | Oil Operator | Nov 1989 |
| 7383 | Dale O. Reese, Inc. | | Oil Operator | Jul 1997 |
| 7384 | Dale Operating Company | Dallas, TX 75201 | Oil & Gas Operator | Oct 2025 |
| 7385 | Dale Operations, LLC | Dickinson, TX 77539 | Oil & Gas Operator | Oct 2025 |
| 7386 | Dale R & George W Magee | Duke Center, PA 16729-0217 | Oil & Gas Operator | Dec 2010 |
| 7387 | Dale U & Martha E Livermore | Brookville, PA 15825-7524 | Gas Operator | Dec 2024 |
| 7388 | Dale, David Dba DD Oil Company | Spencer, WV 25276-0406 | Oil & Gas Operator | Dec 2021 |
| 7389 | Dale, Doyle C. | Poolville, TX 76487 | Oil & Gas Operator | Sep 2018 |
| 7390 | Daleco Resources | | Gas Operator | Dec 2000 |
| 7391 | Daleco Resources, Inc. | Lewisville, TX 75067 | Oil & Gas Operator | Mar 2008 |
| 7392 | Dalen Resources Oil & Gas | Dallas, TX 75206-3922 | Oil & Gas Operator | Jan 1996 |
| 7393 | Dalen Resources Oil & Gas Co. | Dallas, TX 75206 | Oil & Gas Operator | Jun 2010 |
| 7394 | Dales Oil Company | Loving, TX 76460 | Oil Operator | Oct 2025 |
| 7395 | Dales Tank Truck Service Inc | Ratliff City, OK 73481 | Oil & Gas Operator | Jun 2025 |
| 7396 | Dalf Energy LLC | Pampa, TX 79066 | Oil & Gas Operator | Oct 2025 |
| 7397 | Dallas DRLG. & Development Co. | | Oil & Gas Operator | Apr 1987 |
| 7398 | Dallas Energy LLC | Bradford, PA 16701 | Oil & Gas Operator | Dec 2024 |
| 7399 | Dallas Operating Corp. | Dallas, TX 75205 | Oil & Gas Operator | Nov 2006 |
| 7400 | Dallas Petroleum Group, LLC | Dallas, TX 75379 | Oil & Gas Operator | Oct 2025 |