| 8301 | Doug'S Pumping Service | | Oil Operator | Jul 2024 |
| 8302 | Dougherty Properties | Beeville, TX 78104 | Oil & Gas Operator | Jun 1997 |
| 8303 | Dougherty, H W | Petaluma, CA 94954 | Gas Operator | Oct 2019 |
| 8304 | Doughtie Operating Company, LLC | MC Queeney, TX 78123 | Oil & Gas Operator | Mar 2023 |
| 8305 | Douglas Edwards | | Oil Operator | Nov 1993 |
| 8306 | Douglas Fairbanks Holdings LLC | Pine Hurst, TX 77362-9998 | Oil & Gas Operator | Sep 2024 |
| 8307 | Douglas Investments Inc | Fort Worth, TX 76137 | Oil Operator | Jan 2020 |
| 8308 | Douglas Oil & Gas Co Inc | Ada, OK 74820 | Oil Operator | Apr 2014 |
| 8309 | Douglas Oil & Gas Inc | Canonsburg, PA 15317 | Gas Operator | Dec 2003 |
| 8310 | Douglas Oil & Gas LP | State College, PA 16803 | Oil & Gas Operator | Dec 2007 |
| 8311 | Douglas Petroleum Inc. | Spring, TX 77379 | Oil & Gas Operator | Nov 2010 |
| 8312 | Douglas W. Baker Trustee | | Oil & Gas Operator | Dec 1993 |
| 8313 | Douglas Whitney | | Oil Operator | Dec 2004 |
| 8314 | Douglas, Norvel Trust | H SPG NTL PK, AR 71909 | Oil & Gas Operator | Aug 2013 |
| 8315 | Douglass Dietz & Daley Inc | Oklahoma City, OK 73154-0125 | Oil & Gas Operator | Aug 2023 |
| 8316 | Dove Creek Energy, Inc. | Fort Worth, TX 76121 | Oil & Gas Operator | Nov 2024 |
| 8317 | Dove Creek Resources, LLC | Arlington, TX 76012 | Oil Operator | Nov 2024 |
| 8318 | Dove Drilling, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Nov 1997 |
| 8319 | Dove Investments LLC | Wetumka, OK 74883 | Oil Operator | Jul 2024 |
| 8320 | Dove Mineral | Abilene, TX 79601 | Oil & Gas Operator | Dec 2010 |
| 8321 | Dover Atwood Corporation | Massillon, OH 44646 | Oil & Gas Operator | Dec 2023 |
| 8322 | Dover Oil Co | Marietta, OH 45750 | Oil & Gas Operator | Dec 1999 |
| 8323 | Dow Intrastate Gas Company | | Oil Operator | Dec 2023 |
| 8324 | Dow Mineral & Royalty Co, Inc | | Oil & Gas Operator | Jun 1994 |
| 8325 | Dowd, Gene | | Oil & Gas Operator | Dec 2013 |
| 8326 | Dowden, T. L. | Henderson, TX 75652 | Oil & Gas Operator | Nov 2024 |
| 8327 | Dowell Oil & Gas | Stephenville, TX 76401 | Oil & Gas Operator | Nov 2024 |
| 8328 | Down-Hole Pump Service Co., Inc. | Fort Worth, TX 76109 | Oil & Gas Operator | Nov 2024 |
| 8329 | Downhole Oil & Gas Tech LLC | Countyline, OK 73152-0027 | Oil Operator | Oct 2009 |
| 8330 | Downing Well Service, Inc. | Devine, TX 78016 | Oil & Gas Operator | Nov 2024 |
| 8331 | Downing-Nelson Oil Co Inc | Hays, KS 67601 | Oil & Gas Operator | Jul 2024 |
| 8332 | Downman Jones Oil Operators, Inc | Brookshire, TX 77423 | Oil & Gas Operator | Jan 2007 |
| 8333 | Doyle Dempsey | | Oil Operator | May 1997 |
| 8334 | Doyle E Baxter | Bloomfield, NM 87413 | Oil Operator | Feb 2005 |
| 8335 | Doyle Hartman | Midland, TX 79702 | Oil & Gas Operator | Nov 2005 |
| 8336 | DP Permian Operator, LLC | Houston, TX 77024 | Oil & Gas Operator | Nov 2024 |
| 8337 | DP Well Works I, LLC | Salt Lake Cty, UT 84103 | Oil & Gas Operator | Nov 2024 |
| 8338 | DP2, LLC | Southlake, TX 76092 | Oil & Gas Operator | Nov 2024 |
| 8339 | DPMP Energy LLC | Prosper, TX 75078 | Oil & Gas Operator | Dec 2023 |
| 8340 | DR Oil Company Limited Partnership | | Oil Operator | Apr 2012 |
| 8341 | DR Well Operator | | Oil Operator | Jan 1990 |
| 8342 | DR. Richard C. Baker | | Oil & Gas Operator | Oct 2009 |
| 8343 | Drachen Oil Company | San Antonio, TX 78258 | Oil & Gas Operator | Nov 2024 |
| 8344 | Draco Energy, Inc. | Midland, TX 79701 | Oil & Gas Operator | Nov 2024 |
| 8345 | Draco Production Company | Tulsa, OK 74133 | Oil & Gas Operator | Jul 2012 |
| 8346 | Dragon Energy Corporation | | Oil & Gas Operator | Nov 2006 |
| 8347 | Dragon Energy LLC | Tulsa, OK 74135-7234 | Oil & Gas Operator | Feb 2015 |
| 8348 | Dragon Operating, LLC | Tulsa, OK 74137 | Oil Operator | Nov 2024 |
| 8349 | Dragoon Oil & Gas Co. | Fort Worth, TX 76147 | Oil & Gas Operator | May 2015 |
| 8350 | Drain Oil Co. | Fritch, TX 79036 | Oil & Gas Operator | Jul 2009 |
| 8351 | Drain Oil Co. LLC | Fritch, TX 79036 | Oil & Gas Operator | Nov 2024 |
| 8352 | Drake Denver | Shinglehouse, PA 16748-5517 | Oil & Gas Operator | Dec 2023 |
| 8353 | Drake Energy Corporation | | Gas Operator | Jun 2024 |
| 8354 | Drake Exploration Inc | Tulsa, OK 74105-4250 | Oil & Gas Operator | Aug 2024 |
| 8355 | Drake Exploration LLC | Arkansas City, KS 67005 | Oil & Gas Operator | Sep 2024 |
| 8356 | Drake Oil & Gas, LLC | Wichita Falls, TX 76308 | Oil Operator | Nov 2024 |
| 8357 | Drake Operating Company, LLC | El Dorado, AR 71730 | Oil Operator | Mar 2024 |
| 8358 | Drake Petroleum, LLC | Cypress, TX 77429 | Oil & Gas Operator | Jun 2023 |
| 8359 | Drake, Stuart | | Oil Operator | Dec 2013 |
| 8360 | Draw Oil & Gas Inc | | Oil & Gas Operator | Jun 1995 |
| 8361 | Drawings, LLC | Albuquerque, NM 87109 | Oil Operator | Jul 2024 |
| 8362 | DRD Operating Company | | Oil & Gas Operator | Feb 2014 |
| 8363 | Dreher, George R. | Midland, TX 79702 | Oil & Gas Operator | Jan 2018 |
| 8364 | Dreiling Exploration LLC | Victoria, KS 67671 | Oil Operator | Mar 2018 |
| 8365 | Dreiling Limited | | Oil Operator | Jun 1984 |
| 8366 | Dreiling Oil Inc | Hays, KS 67601 | Oil Operator | Jun 2018 |
| 8367 | Dreiling Resourc | | Oil Operator | Oct 1996 |
| 8368 | Dreiling Resources Inc. | Victoria, KS 67671 | Oil Operator | Sep 1997 |
| 8369 | Drenco Oil & Gas, Inc | | Oil Operator | Jul 2024 |
| 8370 | Drennan Oil L.L.C. | Ballinger, TX 76821 | Oil & Gas Operator | Nov 2024 |
| 8371 | Drennan, D. E. | Graham, TX 76450 | Oil & Gas Operator | Dec 2011 |
| 8372 | Dresser Industrial Park, Inc. | North Tonawanda, NY 14120 | Gas Operator | Dec 2023 |
| 8373 | Drew Cornell, Inc. | | Oil & Gas Operator | Jul 1992 |
| 8374 | Drew Cornell, Inc.-Agent | | Oil & Gas Operator | Sep 1990 |
| 8375 | Drew Cornell,Inc.-C.H.Lawrence | | Oil & Gas Operator | Sep 1990 |
| 8376 | Drew Cornell,Inc.-R Waterbury | | Oil Operator | Jun 1999 |
| 8377 | Dreyer Oil | | Oil Operator | Dec 2019 |
| 8378 | Dreyer Oil - Lel | | Oil Operator | Nov 1993 |
| 8379 | Dreyfus, Louis Natural Gas Corp | Oklahoma City, OK 73134 | Oil & Gas Operator | Nov 2001 |
| 8380 | DRG Energy Inc | Norman, OK 73026-3171 | Oil & Gas Operator | Aug 2024 |
| 8381 | DRH Properties LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2014 |
| 8382 | Dri Operating Company | West Chester, PA 19382-0000 | Gas Operator | Dec 2008 |
| 8383 | Driftwood Energy Operating, LLC | Dallas, TX 75219 | Oil & Gas Operator | Dec 2022 |
| 8384 | Driftwood Oil Co. | Russell, KS 67665 | Oil Operator | Jan 1988 |
| 8385 | Driftwood Oil, LLC | Jal, NM 88252 | Oil & Gas Operator | Sep 2024 |
| 8386 | Drilex Oil & Gas | | Oil Operator | Apr 1987 |
| 8387 | Drill Partners Management, LLC | Houston, TX 77056 | Oil & Gas Operator | Nov 2010 |
| 8388 | Driller'S & Prod | | Oil & Gas Operator | Oct 1994 |
| 8389 | Drillers & Producers, Inc. | Newton, KS 67114 | Oil Operator | Dec 2019 |
| 8390 | Drillers Energy Search, Inc | Denver, CO 80202 | Oil & Gas Operator | Aug 1996 |
| 8391 | Drillers LLC | Indiana, PA 15701 | Oil & Gas Operator | Dec 2023 |
| 8392 | Drillex Inc | Mentor, OH 44060 | Oil & Gas Operator | Dec 2003 |
| 8393 | Drilling & Production Co. | | Oil & Gas Operator | Aug 2024 |
| 8394 | Drilling Exploration & Operating Co. Inc. | | Oil & Gas Operator | Sep 2024 |
| 8395 | Drilling, Operg & Explor, Inc. | | Oil & Gas Operator | Feb 1990 |
| 8396 | Drillmar Energy, Inc. | Houston, TX 77079 | Oil & Gas Operator | Nov 2014 |
| 8397 | Drillmar Operating Company | Houston, TX 77019 | Oil & Gas Operator | Jun 2013 |
| 8398 | Drillogix Exploration LLC | Breckenridge, TX 76424 | Oil Operator | Nov 2024 |
| 8399 | Drilmor, Inc. | Midland, TX 79701 | Oil & Gas Operator | Feb 1998 |
| 8400 | Driltrol | | Oil & Gas Operator | Dec 1984 |