| 7401 | Dacott Oil & Gas, LLC | Pampa, TX 79065 | Oil & Gas Operator | Sep 2011 |
| 7402 | Daesung Energy Resources Inc. | Dallas, TX 75206 | Oil & Gas Operator | Dec 2025 |
| 7403 | Daf Operating, LLC | Houston, TX 77005 | Oil & Gas Operator | Dec 2025 |
| 7404 | Dahab Energy Inc. | Dallas, TX 75225 | Oil & Gas Operator | Dec 2025 |
| 7405 | Dahco Operating, LLC | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Dec 2025 |
| 7406 | Dahill Murray P | Casper, WY 82601 | Oil & Gas Operator | Jun 2007 |
| 7407 | Dahl & Smith Oil Co | Barnsdall, OK 74002 | Oil & Gas Operator | Aug 1999 |
| 7408 | Dahl Randall Lee | Barnsdall, OK 74002 | Oil Operator | Aug 2025 |
| 7409 | Dahl SWD Facility #1 LLC | Oklahoma City, OK 73013 | Gas Operator | Dec 2017 |
| 7410 | Dahlia Operating LLC | Petrolia, TX 76377 | Oil & Gas Operator | Apr 2018 |
| 7411 | Dailey Oil And Gas LLC | | Oil & Gas Operator | Jun 2019 |
| 7412 | Daily, Carroll | Loving, TX 76460 | Oil & Gas Operator | Sep 2023 |
| 7413 | Dain Oil | Graham, TX 76450 | Oil & Gas Operator | Dec 2007 |
| 7414 | Daisy Pointer | | Oil Operator | Jul 1999 |
| 7415 | Dakar Operating Company | Pampa, TX 79066 | Oil & Gas Operator | Dec 2001 |
| 7416 | Dakota Crude, Inc. | | Oil & Gas Operator | Oct 2025 |
| 7417 | Dakota Drilling, LLC | Wichita, KS 67205 | Oil Operator | Feb 2006 |
| 7418 | Dakota Exploration LLC | Tulsa, OK 74136 | Oil & Gas Operator | Oct 2025 |
| 7419 | Dakota Oil & Gas Co | Delmont, PA 15626-2408 | Oil & Gas Operator | Dec 2024 |
| 7420 | Dakota Oil Company | Hebbronville, TX 78361 | Oil & Gas Operator | Dec 2025 |
| 7421 | Dakota Opr Co Inc | Indiana, PA 15701-0444 | Oil & Gas Operator | Dec 1999 |
| 7422 | Dakota Production Co., Inc. | Neodesha, KS 66757 | Gas Operator | May 2025 |
| 7423 | Dakota Resources | | Oil & Gas Operator | Jan 1989 |
| 7424 | Dakota Resources, Inc | Midland, TX 79707 | Oil & Gas Operator | Oct 2025 |
| 7425 | Dakota Resources, Inc. (I) | Midland, TX 79707 | Oil & Gas Operator | Dec 2025 |
| 7426 | Dakota West Pumping, Inc. | | Oil & Gas Operator | Feb 2004 |
| 7427 | Dakota-3 E&P Company, LLC | | Oil & Gas Operator | Jan 2012 |
| 7428 | Dal-Long Oil Company | Longview, TX 75608 | Oil Operator | Feb 2001 |
| 7429 | Dalco Petroleum Inc | | Oil & Gas Operator | Jan 2006 |
| 7430 | Dalcor Energy LLC | Duncan, OK 73534 | Oil & Gas Operator | Sep 2025 |
| 7431 | Dale E. Jackson Production Co. | | Oil Operator | Jun 2025 |
| 7432 | Dale Expl Co & R. A. Campbell | | Oil Operator | Nov 1995 |
| 7433 | Dale Exploration Co. | | Oil & Gas Operator | May 2004 |
| 7434 | Dale George | Elmore City, OK 73433 | Oil & Gas Operator | Aug 2022 |
| 7435 | Dale Jimmy | Davis, OK 73030 | Oil & Gas Operator | Mar 2015 |
| 7436 | Dale O. Reese | | Oil Operator | Nov 1989 |
| 7437 | Dale O. Reese, Inc. | | Oil Operator | Jul 1997 |
| 7438 | Dale Operating Company | Dallas, TX 75201 | Oil & Gas Operator | Dec 2025 |
| 7439 | Dale Operations, LLC | Dickinson, TX 77539 | Oil & Gas Operator | Dec 2025 |
| 7440 | Dale R & George W Magee | Duke Center, PA 16729-0217 | Oil & Gas Operator | Dec 2010 |
| 7441 | Dale U & Martha E Livermore | Brookville, PA 15825-7524 | Gas Operator | Dec 2024 |
| 7442 | Dale, David Dba DD Oil Company | Spencer, WV 25276-0406 | Oil & Gas Operator | Dec 2021 |
| 7443 | Dale, Doyle C. | Poolville, TX 76487 | Oil & Gas Operator | Sep 2018 |
| 7444 | Daleco Resources | | Gas Operator | Dec 2000 |
| 7445 | Daleco Resources, Inc. | Lewisville, TX 75067 | Oil & Gas Operator | Mar 2008 |
| 7446 | Dalen Resources Oil & Gas | Dallas, TX 75206-3922 | Oil & Gas Operator | Jan 1996 |
| 7447 | Dalen Resources Oil & Gas Co | Dallas, TX 75206 | Oil & Gas Operator | Jun 2010 |
| 7448 | Dales Oil Company | Loving, TX 76460 | Oil Operator | Dec 2025 |
| 7449 | Dales Tank Truck Service Inc | Ratliff City, OK 73481 | Oil & Gas Operator | Sep 2025 |
| 7450 | Dalf Energy LLC | Pampa, TX 79066 | Oil & Gas Operator | Dec 2025 |
| 7451 | Dallas DRLG. & Development Co. | | Oil & Gas Operator | Apr 1987 |
| 7452 | Dallas Energy LLC | Bradford, PA 16701 | Oil & Gas Operator | Dec 2024 |
| 7453 | Dallas Operating Corp. | Dallas, TX 75205 | Oil & Gas Operator | Nov 2006 |
| 7454 | Dallas Petroleum Group, LLC | Dallas, TX 75379 | Oil & Gas Operator | Dec 2025 |
| 7455 | Dallas Production | Dallas, TX 75206 | Oil & Gas Operator | Sep 1996 |
| 7456 | Dallas Production Company LLC | Dallas, TX 75206 | Oil & Gas Operator | Dec 2025 |
| 7457 | Dallas Production, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Mar 2021 |
| 7458 | Dallas Resources, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Dec 1997 |
| 7459 | Dallas Royalty, Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Dec 2012 |
| 7460 | Dally'S Oil Co. LLC | Monahans, TX 79756 | Oil Operator | Dec 2025 |
| 7461 | Dalnor Corporation | | Oil & Gas Operator | Nov 2010 |
| 7462 | Dalport Oil Corporation | Dallas, TX 75202 | Oil & Gas Operator | Apr 1993 |
| 7463 | Dalton & Hanna LTD | Wooster, OH 44691 | Oil & Gas Operator | Dec 2018 |
| 7464 | Dalton J. Woods | | Oil & Gas Operator | Dec 1985 |
| 7465 | Damar Resc Incor | | Oil Operator | Oct 1995 |
| 7466 | Damar Resources, Inc. | Hays, KS 67601 | Oil & Gas Operator | Apr 2025 |
| 7467 | Dameron Petroleum Corp. | Midland, TX 79708 | Oil & Gas Operator | Dec 2025 |
| 7468 | Damian Oil, Inc. | | Oil & Gas Operator | Dec 2024 |
| 7469 | Damron Energy | Eden, TX 76837 | Oil & Gas Operator | Jan 2015 |
| 7470 | Damron Energy, LLC | Eden, TX 76837 | Oil & Gas Operator | Dec 2025 |
| 7471 | Damson Oil Corpo | | Oil & Gas Operator | May 1994 |
| 7472 | Damson Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Mar 2005 |
| 7473 | Damson-Franks-McCord-Goodrich | | Oil & Gas Operator | Aug 1984 |
| 7474 | Dan A. Hughes Company | | Oil & Gas Operator | Dec 2005 |
| 7475 | Dan A. Hughes Company, L.P. | Beeville, TX 78104 | Oil & Gas Operator | Sep 2025 |
| 7476 | Dan C Berry | Eunice, NM 88231 | Oil Operator | Oct 1995 |
| 7477 | Dan Owens | | Oil & Gas Operator | Jul 1993 |
| 7478 | Dan Strong Jr | Midland, TX 79702 | Oil & Gas Operator | Mar 1994 |
| 7479 | Dan Texas Company | Waco, TX 76710 | Oil & Gas Operator | Sep 1998 |
| 7480 | Dana Petroleum Inc | Salt Lake City, UT 84047 | Oil & Gas Operator | Nov 1998 |
| 7481 | Dance Oil Co | Denver, CO 80202 | Oil & Gas Operator | May 1993 |
| 7482 | Danco Enterprises Inc | Ada, OK 74820 | Oil Operator | Apr 2008 |
| 7483 | Danco Oil & Gas | White Deer, TX 79097 | Oil & Gas Operator | Aug 2013 |
| 7484 | Dane G. Hansen Trust | | Oil Operator | Dec 1994 |
| 7485 | Danick Operating USA Inc | McKinney, TX 75072-9071 | Oil & Gas Operator | Oct 2022 |
| 7486 | Daniel B. Robinett | | Oil & Gas Operator | Dec 1990 |
| 7487 | Daniel Explorations Inc | Georgetown, TX 78627 | Oil & Gas Operator | Apr 2009 |
| 7488 | Daniel Mineral Development, Inc. | The Woodlands, TX 77380 | Oil & Gas Operator | Jun 2007 |
| 7489 | Daniel Oil & Gas | Granbury, TX 76049 | Oil & Gas Operator | Oct 2010 |
| 7490 | Daniel Oil Company | | Oil & Gas Operator | Jan 1983 |
| 7491 | Daniel P Hornburg | Clarendon, PA 16313-2324 | Oil & Gas Operator | Dec 2024 |
| 7492 | Daniel Resource Dev Inc | Tomball, TX 77375-8919 | Oil & Gas Operator | Oct 2009 |
| 7493 | Daniel, Freeman | El Dorado, AR 71730 | Oil Operator | Jan 2025 |
| 7494 | Daniel-Price Exploration Co | Tulsa, OK 74119 | Gas Operator | Apr 2011 |
| 7495 | Daniels Corporation, The | Seabrook, TX 77586 | Oil & Gas Operator | Dec 2025 |
| 7496 | Daniels Danny | Tishomingo, OK 73460-0853 | Oil Operator | Apr 2015 |
| 7497 | Daniels E L Dril | | Oil Operator | Nov 1995 |
| 7498 | Daniels Earlene Inc | Follett, TX 79034-9736 | Oil & Gas Operator | Mar 2015 |
| 7499 | Daniels Energy | Pampa, TX 79066 | Oil & Gas Operator | Dec 2025 |
| 7500 | Daniels Oil Co. | | Oil Operator | Mar 2025 |