| 401 | Davis Gulf Coast, Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2024 |
| 402 | Davis Henry | Tulsa, OK 74135-3567 | Oil & Gas Operator | Dec 1994 |
| 403 | Davis Investment LLC | | Oil & Gas Operator | Dec 1998 |
| 404 | Davis J L | | Oil & Gas Operator | Aug 2006 |
| 405 | Davis Jim L | Morris, OK 74445 | Oil & Gas Operator | Dec 2021 |
| 406 | Davis Kendall | Bethany, OK 73008-4714 | Oil Operator | Aug 2016 |
| 407 | Davis Oil & Gas, LLC | Shreveport, LA 71101 | Oil & Gas Operator | Jun 2011 |
| 408 | Davis Oil Compan | | Oil Operator | Jul 1988 |
| 409 | Davis Oil Company | Pawhuska, OK 74056 | Oil & Gas Operator | Jun 2018 |
| 410 | Davis Oil Company-Cox | | Oil & Gas Operator | Aug 1980 |
| 411 | Davis Operating Company | Elysian Field, TX 75642 | Oil & Gas Operator | Apr 2024 |
| 412 | Davis Petroleum | | Oil & Gas Operator | Dec 1996 |
| 413 | Davis Petroleum Corp. | Houston, TX 77027 | Oil & Gas Operator | Apr 2024 |
| 414 | Davis Petroleum, Inc. | Great Bend, KS 67530 | Oil Operator | Aug 2021 |
| 415 | Davis Southern Operating Co LLC | Houston, TX 77004 | Oil & Gas Operator | Apr 2024 |
| 416 | Davis William H | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2014 |
| 417 | Davis William W | | Oil Operator | Oct 2023 |
| 418 | Davis, A. L. Production Co.,Inc. | Van Vleck, TX 77482 | Oil & Gas Operator | Aug 2003 |
| 419 | Davis, Billy F. | Tulsa, OK 74152 | Oil Operator | Jun 1988 |
| 420 | Davis, C. O. Production Co. | Bay City, TX 77414 | Oil & Gas Operator | Apr 2024 |
| 421 | Davis, Charles E | Waverly, WV 26184 | Oil & Gas Operator | Dec 2021 |
| 422 | Davis, D. D. Estate Of | Borger, TX 79008 | Oil & Gas Operator | Jul 1998 |
| 423 | Davis, Don Oil Co. | Nocona, TX 76255 | Oil & Gas Operator | Apr 2024 |
| 424 | Davis, Edward Mike | | Oil Operator | Dec 2011 |
| 425 | Davis, Gowin | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 2001 |
| 426 | Davis, J. R. Oil Company | Sweeny, TX 77480 | Oil & Gas Operator | Apr 2024 |
| 427 | Davis, Joe D. | Fort Smith, AR 72903 | Gas Operator | Mar 2015 |
| 428 | Davis, Kelly J. | Muenster, TX 76252 | Oil Operator | Apr 2024 |
| 429 | Davis, Larry D. | Boling, TX 77420 | Oil & Gas Operator | Apr 2024 |
| 430 | Davis, LLC* Edward Mike | | Oil & Gas Operator | Sep 2015 |
| 431 | Davis, Michael G. | Wichita, KS 67212 | Oil & Gas Operator | Jul 1988 |
| 432 | Davis, Odis Oil Company | Nocona, TX 76255 | Oil & Gas Operator | Dec 2000 |
| 433 | Davis, Paul Pipe & Supply Inc. | Abilene, TX 79606 | Oil & Gas Operator | Feb 2001 |
| 434 | Davis, R. E. Oil & Gas, Inc. | Graham, TX 76450 | Oil & Gas Operator | Oct 2015 |
| 435 | Davis, Randy | Perryton, TX 79070 | Oil & Gas Operator | Jun 2017 |
| 436 | Davis, Robert E. | Graham, TX 76450 | Oil & Gas Operator | Apr 1997 |
| 437 | Davis, Roland C. | Hardin, TX 77561 | Oil & Gas Operator | May 1997 |
| 438 | Davis, Sammy | Albany, TX 76430 | Oil & Gas Operator | Apr 2024 |
| 439 | Davis, Tommy | Hebbronville, TX 78361 | Oil & Gas Operator | Jun 1995 |
| 440 | Davis, Travis H. | Spearman, TX 79081 | Oil & Gas Operator | Jul 2003 |
| 441 | Davis, Travis H. Gas | Spearman, TX 79081 | Oil & Gas Operator | Apr 2024 |
| 442 | Davis, Wilbur Oil Production Company | Junction City, AR 71749 | Oil Operator | Jan 2024 |
| 443 | Davis-Goodman Oil Company | | Oil & Gas Operator | Jun 1980 |
| 444 | Davis-Goodman-Medders | | Oil & Gas Operator | Jun 1980 |
| 445 | Davis/Osage Corp | Tulsa, OK 74103 | Oil Operator | Jan 2001 |
| 446 | Davisson, Ancil | | Oil & Gas Operator | Oct 2001 |
| 447 | Davon Drilling Company | Oklahoma City, OK 73113-0665 | Oil & Gas Operator | Mar 2015 |
| 448 | Dawes, Tom E | | Oil Operator | Oct 2000 |
| 449 | Dawkins Energies, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Apr 2024 |
| 450 | Dawn Energy SVC | Templeton, PA 16259-3616 | Gas Operator | Dec 2023 |
| 451 | Dawn Oil & Gas Operators Inc. | Borger, TX 79007 | Oil & Gas Operator | Apr 2024 |
| 452 | Dawsey Operating Company | Georgetown, TX 78628 | Oil & Gas Operator | Mar 2016 |
| 453 | Dawso Levi | Pawhuska, OK 74056 | Oil & Gas Operator | Mar 2015 |
| 454 | Dawson Exploration, Inc. | | Oil & Gas Operator | Jun 1986 |
| 455 | Dawson Resources Inc | Franktown, CO 80116 | Oil & Gas Operator | Mar 2015 |
| 456 | Dawson, B G Oil & Gas LTD | Dallas, TX 75205 | Oil & Gas Operator | Apr 2024 |
| 457 | Dawson-Markwell | | Oil & Gas Operator | Nov 1996 |
| 458 | Dawson-Markwell Exploration Co. | Oklahoma City, OK 73101 | Oil & Gas Operator | Jan 2024 |
| 459 | Dawydko, Keith A. & Ronald T. | Clarence, NY 14031 | Gas Operator | Dec 2022 |
| 460 | Daxin Energy Corporation | Seminole, OK 74868-2208 | Oil Operator | Jan 2013 |
| 461 | Day Dreams Resources, LLC | | Oil & Gas Operator | Jan 2024 |
| 462 | Day Resources, Inc. | Midland, TX 79707 | Oil & Gas Operator | Aug 1994 |
| 463 | Day Richard H | Wann, OK 74083-9608 | Oil Operator | Mar 2015 |
| 464 | Day Town Operating, LLC | | Oil Operator | Dec 2023 |
| 465 | Daybreak Oil And Gas, Inc. | | Oil & Gas Operator | Nov 2023 |
| 466 | Daylight Petroleum LLC | Houston, TX 77052 | Oil & Gas Operator | Apr 2024 |
| 467 | Daymon Martin | | Oil Operator | Mar 1983 |
| 468 | Days Creek Operating Company Inc | Texarkana, AR 71854 | Oil & Gas Operator | Aug 2023 |
| 469 | Daystar Operating Company, LLC | Austin, TX 78750 | Oil & Gas Operator | Apr 2008 |
| 470 | Daystar Petroleum, Inc. | Eureka, KS 67045 | Oil & Gas Operator | Dec 2023 |
| 471 | DB Energy, LLC | Baldwin City, KS 66006 | Oil Operator | Oct 2023 |
| 472 | DB Resources, LLC | Houston, TX 77019 | Oil & Gas Operator | Apr 2024 |
| 473 | DBC Operating Company LLC | Midlothian, TX 76065 | Oil & Gas Operator | Apr 2024 |
| 474 | DBD Oil, LLC | Emporia, KS 66801 | Oil Operator | Dec 2023 |
| 475 | DBF Partners | | Oil Operator | Dec 1986 |
| 476 | DBJ Inc | Maysville, OK 73057 | Oil Operator | Jan 2005 |
| 477 | DBL DRLG.&Prod. Services, Inc. | | Oil & Gas Operator | Jul 1997 |
| 478 | Dbo Oil Incorporated | Georgetown, TX 78628 | Oil & Gas Operator | Apr 2024 |
| 479 | DBP Exploration, Inc. | Pampa, TX 79065 | Oil & Gas Operator | Apr 2024 |
| 480 | DBS Oil Operating | Pawhuska, OK 74056 | Oil Operator | Aug 2013 |
| 481 | Dby Investments LLC | | Oil & Gas Operator | Nov 2016 |
| 482 | DC Oil & Gas LLC | Woodsfield, OH 43793 | Oil & Gas Operator | Dec 2022 |
| 483 | DC Operating LLC | | Oil & Gas Operator | Mar 2020 |
| 484 | DCD Inc | Gillette, WY 82716 | Oil & Gas Operator | Aug 2003 |
| 485 | DCDC, Inc. | Midland, TX 79710 | Oil & Gas Operator | Jun 2003 |
| 486 | DCF Exploration | Lakewood, CO 80215 | Oil Operator | Dec 1989 |
| 487 | Dci Petroleum Inc | Dorset, OH 44032 | Oil & Gas Operator | Dec 2017 |
| 488 | Dcor, L.L.C. | Dallas, TX 75225 | Oil & Gas Operator | Dec 2023 |
| 489 | DCP Midstream, LLC | | Oil Operator | Jun 2016 |
| 490 | DCP Operating Co LP | Houston, TX 77042 | Oil & Gas Operator | Dec 2023 |
| 491 | DCP, Inc. | | Oil & Gas Operator | Jun 1990 |
| 492 | DCS Energy | Throckmorton, TX 76483 | Oil Operator | Apr 2024 |
| 493 | DDC & T Operating Company, Inc | | Oil & Gas Operator | Jul 2005 |
| 494 | DDC Energy Corporation | Marietta, GA 30068 | Oil & Gas Operator | Mar 1997 |
| 495 | DDC Oil LLC | | Oil Operator | Mar 2020 |
| 496 | DDC Production Company | Archer City, TX 76351 | Oil Operator | Apr 2024 |
| 497 | DDC Track, LLC | Bushland, TX 79012 | Oil Operator | Apr 2024 |
| 498 | DDD Exploration Inc | Amarillo, TX 79109 | Oil Operator | Apr 2024 |
| 499 | De & TZ LLC | Wellsville, KS 66092 | Oil Operator | Dec 2023 |
| 500 | De Compiegne Prop. Co. 20, The | Midland, TX 79702 | Oil Operator | Oct 2019 |