| 7301 | D&S Oil & Gas Operators, Inc. | | Oil & Gas Operator | Dec 2020 |
| 7302 | D&S Oil And Gas Properties | San Angelo, TX 76902 | Oil & Gas Operator | May 2025 |
| 7303 | D'Amato, Giovanni C. | Elma, NY 14059 | Gas Operator | Dec 2023 |
| 7304 | D-B-K Operating Company | | Oil Operator | Jan 2006 |
| 7305 | D-Bar Leasing, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Apr 2022 |
| 7306 | D-D Oil | Woodsfield, OH 43793 | Oil & Gas Operator | Dec 2018 |
| 7307 | D-Mil Production Inc | Argyle, TX 76226 | Oil & Gas Operator | May 2025 |
| 7308 | D-O-R Lease Service, Inc. | | Oil & Gas Operator | Mar 2009 |
| 7309 | D-Oil Incorporat | | Oil Operator | Aug 1990 |
| 7310 | D-Pex Operating Company | | Oil & Gas Operator | Sep 2004 |
| 7311 | D-Ram Construction Co., Inc. | | Gas Operator | Dec 1990 |
| 7312 | D-S-B Properties, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Sep 2014 |
| 7313 | D-S-B Properties, LLC | Kilgore, TX 75663 | Oil & Gas Operator | May 2025 |
| 7314 | D-T Development Company | Richardson, TX 75081 | Oil & Gas Operator | Sep 2002 |
| 7315 | D-Tec Well Production LLC | | Oil Operator | Dec 2024 |
| 7316 | D. A. Biglane Operating Co Et Al | | Oil Operator | Feb 2004 |
| 7317 | D. & D. Operating Account | Breckenridge, TX 76424 | Oil & Gas Operator | Mar 2009 |
| 7318 | D. A. B. Oil Service, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Nov 2012 |
| 7319 | D. A. Biglane | | Oil & Gas Operator | Feb 1990 |
| 7320 | D. A. Milton | | Oil & Gas Operator | Dec 2016 |
| 7321 | D. A. Stark | | Oil Operator | Dec 1990 |
| 7322 | D. B. Braddock | | Oil & Gas Operator | Jan 1986 |
| 7323 | D. B. Braddock-Kisatchie Res. | | Oil & Gas Operator | Jan 1985 |
| 7324 | D. B. McClinton | | Oil & Gas Operator | Jun 1992 |
| 7325 | D. B. McConnell | | Oil & Gas Operator | Oct 1991 |
| 7326 | D. B. McConnell Et Al | | Oil & Gas Operator | Nov 1993 |
| 7327 | D. C. Bintliff | | Oil & Gas Operator | Mar 1987 |
| 7328 | D. C. Bintliff Et Al | | Oil & Gas Operator | Feb 1987 |
| 7329 | D. C. Bintliff-McCormick O&G | | Oil & Gas Operator | Oct 1983 |
| 7330 | D. C. Malcolm, Inc. | Charleston, WV 25301 | Oil & Gas Operator | Dec 2021 |
| 7331 | D. C. Page Farms, Inc | Le Roy, NY 14482 | Gas Operator | Dec 2023 |
| 7332 | D. E. Craggs Inc. | | Gas Operator | Dec 1993 |
| 7333 | D. E. Exploration, Inc. | Wellsville, KS 66092 | Oil & Gas Operator | Jan 2025 |
| 7334 | D. G. Haney, Inc. | Charleston, WV 25338-3810 | Oil & Gas Operator | Dec 2021 |
| 7335 | D. G. Oil Co. | Dennis, TX 76439 | Oil & Gas Operator | May 2025 |
| 7336 | D. I. Dupree | | Oil & Gas Operator | Sep 2015 |
| 7337 | D. J. Fritz | | Oil & Gas Operator | Feb 1982 |
| 7338 | D. J. Hatfield | | Oil & Gas Operator | Dec 1994 |
| 7339 | D. J. Pickrell Operator | | Gas Operator | Dec 2012 |
| 7340 | D. J. Simmons & Co. Of La. | | Gas Operator | Nov 1996 |
| 7341 | D. Jackson Rentals LLC | Easton, KS 66020 | Oil Operator | Jan 2025 |
| 7342 | D. K. Boyd Oil & Gas Co., Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 1999 |
| 7343 | D. L. & Barbara W. Chiles | | Oil Operator | Jan 2025 |
| 7344 | D. L. Gish | | Oil Operator | Mar 1992 |
| 7345 | D. L. Gish Oil Partnership | | Oil Operator | Feb 1989 |
| 7346 | D. L. Gish Oil, Inc. | | Oil Operator | Jul 1998 |
| 7347 | D. L. Gish, Inc. | | Oil Operator | Jun 1990 |
| 7348 | D. L. Trainer | | Oil Operator | Mar 1991 |
| 7349 | D. O. G. Operating, LLC | Port Aransas, TX 78373 | Oil & Gas Operator | May 2025 |
| 7350 | D. R. Lauck Oil Co., Inc. | Wichita, KS 67206 | Oil & Gas Operator | Jul 2019 |
| 7351 | D. S. Owens | | Oil & Gas Operator | Dec 1991 |
| 7352 | D. Shel Oil, Inc. | Gonzales, TX 78629 | Oil Operator | May 2025 |
| 7353 | D. W. Chumley, Jr. | | Oil & Gas Operator | Dec 2024 |
| 7354 | D. W. Elliott Operating Acct | | Oil & Gas Operator | Dec 1991 |
| 7355 | D. W. Tanner | | Oil & Gas Operator | May 2000 |
| 7356 | D.C. Oil | Natalia, TX 78059 | Oil Operator | May 2025 |
| 7357 | D.C.Bintliff-McCormick Oper Co | | Oil & Gas Operator | May 1984 |
| 7358 | D.J. & T. Energy | Abilene, TX 79601 | Oil & Gas Operator | May 2025 |
| 7359 | D.J.F. Petroleum Corporation | | Oil & Gas Operator | Oct 1992 |
| 7360 | D.J.F. Services, Inc. | Holdenville, OK 74848 | Oil & Gas Operator | May 2025 |
| 7361 | D.K. Rush Oil Co., LLC | El Dorado, KS 67042 | Oil Operator | Jan 2025 |
| 7362 | D.K.D. | Merkel, TX 79536 | Oil & Gas Operator | May 2025 |
| 7363 | D.M. Well Service | | Oil Operator | Dec 2019 |
| 7364 | D.N.I. | Bangs, TX 76823 | Oil & Gas Operator | May 2025 |
| 7365 | D.O.E. Energy | Palestine, TX 75801 | Oil & Gas Operator | May 2025 |
| 7366 | D.T. Inc. | Abilene, TX 79608 | Oil & Gas Operator | May 2025 |
| 7367 | D.W.P. Production | Perryton, TX 79070 | Oil & Gas Operator | Nov 2020 |
| 7368 | D.W.R. Oil Properties, Inc. | Merkel, TX 79536 | Oil & Gas Operator | Mar 2025 |
| 7369 | D.W.S. Properties | Sterling, KS 67579 | Oil Operator | Mar 2006 |
| 7370 | D.Y. Exploration, Inc. | Boise, ID 83705 | Oil & Gas Operator | May 2025 |
| 7371 | D10 Energy LLC | Stinnett, TX 79083 | Oil & Gas Operator | May 2025 |
| 7372 | D90 Energy, LLC | Austin, TX 78746 | Oil & Gas Operator | May 2025 |
| 7373 | Da Co Petroleum, Inc. | Wann, OK 74083 | Gas Operator | Apr 2003 |
| 7374 | Da Company Petro | | Gas Operator | Jun 1995 |
| 7375 | Da Crowe & Associates, Inc | Chappell Hill, TX 77426 | Oil & Gas Operator | Sep 2010 |
| 7376 | Da Energy, LLC | Lees Summit, MO 64063 | Oil Operator | Jan 2025 |
| 7377 | Dab And Associates Inc | Crescent, OK 73028-0580 | Oil & Gas Operator | Nov 2014 |
| 7378 | Dab Limited | Oklahoma City, OK 73116-9082 | Oil & Gas Operator | Aug 2013 |
| 7379 | Dabb Energy Company | Fort Worth, TX 76132 | Oil & Gas Operator | Aug 2020 |
| 7380 | Dac Oil Corporation | | Oil & Gas Operator | Dec 1985 |
| 7381 | Dacar Energy, Inc | | Oil Operator | Dec 2015 |
| 7382 | Daco Oil | Joinerville, TX 75658 | Oil & Gas Operator | Aug 2019 |
| 7383 | Daco, Inc. | Spearman, TX 79081 | Oil & Gas Operator | May 2025 |
| 7384 | Dacott Oil & Gas, LLC | Pampa, TX 79065 | Oil & Gas Operator | Sep 2011 |
| 7385 | Daesung Energy Resources Inc. | Dallas, TX 75206 | Oil & Gas Operator | May 2025 |
| 7386 | Daf Operating, LLC | Houston, TX 77005 | Oil & Gas Operator | May 2025 |
| 7387 | Dahab Energy Inc. | Dallas, TX 75225 | Oil & Gas Operator | May 2025 |
| 7388 | Dahco Operating, LLC | Corpus Chrsti, TX 78403 | Oil & Gas Operator | May 2025 |
| 7389 | Dahill Murray P | Casper, WY 82601 | Oil & Gas Operator | Jun 2007 |
| 7390 | Dahl & Smith Oil Co | Barnsdall, OK 74002 | Oil & Gas Operator | Aug 1999 |
| 7391 | Dahl Randall Lee | Barnsdall, OK 74002 | Oil Operator | Feb 2025 |
| 7392 | Dahl SWD Facility #1 LLC | Oklahoma City, OK 73013 | Gas Operator | Dec 2017 |
| 7393 | Dahlia Operating LLC | Petrolia, TX 76377 | Oil & Gas Operator | Apr 2018 |
| 7394 | Dailey Oil And Gas LLC | | Oil & Gas Operator | Jun 2019 |
| 7395 | Daily, Carroll | Loving, TX 76460 | Oil & Gas Operator | Sep 2023 |
| 7396 | Dain Oil | Graham, TX 76450 | Oil & Gas Operator | Dec 2007 |
| 7397 | Daisy Pointer | | Oil Operator | Jul 1999 |
| 7398 | Dakar Operating Company | Pampa, TX 79066 | Oil & Gas Operator | Dec 2001 |
| 7399 | Dakota Crude, Inc. | | Oil & Gas Operator | Mar 2025 |
| 7400 | Dakota Drilling, LLC | Wichita, KS 67205 | Oil Operator | Feb 2006 |