| 8401 | Drindak* Jon | | Oil Operator | Aug 2013 |
| 8402 | Driscoll Jerry J | | Oil Operator | Apr 1994 |
| 8403 | Driscoll Lease O | | Oil Operator | Jul 1988 |
| 8404 | Driscoll Lease Operations, Inc. | Russell, KS 67665 | Oil Operator | Dec 1998 |
| 8405 | Driscoll S.W.D. Inc. | San Antonio, TX 78229 | Oil & Gas Operator | Nov 2024 |
| 8406 | Driscoll, Jerry J Oil Investment Inc | Russell, KS 67665 | Oil Operator | Jul 2024 |
| 8407 | Driver Energy Of Texas | Dallas, TX 75379-5951 | Oil & Gas Operator | Apr 2011 |
| 8408 | DRL Operating In | | Oil Operator | Sep 1986 |
| 8409 | Drmas, LLC | | Oil & Gas Operator | May 2024 |
| 8410 | Drop Tine Exploration, LLC | Medicine Lodge, KS 67104 | Oil & Gas Operator | Dec 2019 |
| 8411 | DRS Exploration Inc. | San Antonio, TX 78209 | Oil & Gas Operator | May 1999 |
| 8412 | Drum Energy Corp | Hobbs, NM 88241 | Oil & Gas Operator | Mar 1996 |
| 8413 | Drum Energy, L.L.C. | | Gas Operator | Dec 2016 |
| 8414 | Drum Oil & Gas, Inc. | Houston, TX 77082 | Oil & Gas Operator | Nov 2024 |
| 8415 | Drum, Delton | Liberty, TX 77575 | Oil & Gas Operator | Jul 2005 |
| 8416 | Drummond, F F | | Oil Operator | Aug 2024 |
| 8417 | Drumright Well Service Inc | Oilton, OK 74052 | Oil & Gas Operator | Sep 2024 |
| 8418 | Dry Coulee Oil & Gas Company | Oilmont, MT 59466 | Oil Operator | Oct 2003 |
| 8419 | Dry Creek Disposal Company, Inc. | | Oil & Gas Operator | Nov 2021 |
| 8420 | Dry Creek Operating, LLC | Fort Worth, TX 76109 | Oil & Gas Operator | Nov 2024 |
| 8421 | Dry Fork Production Co | Wichita Falls, TX 76301 | Oil Operator | Apr 2003 |
| 8422 | Dry Fork Production Co., LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Nov 2024 |
| 8423 | Dry Hole Producing LLC | Poland, OH 44514 | Oil & Gas Operator | Dec 2023 |
| 8424 | Dry Hole Producing LP | Poland, OH 44514-3631-3631 | Oil & Gas Operator | Dec 2019 |
| 8425 | Dryes Corner LLC | Crescent, OK 73028 | Oil Operator | Jul 2023 |
| 8426 | DSB Energy, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Nov 2024 |
| 8427 | DSM Exploration Inc | Oklahoma City, OK 73154 | Oil & Gas Operator | May 1996 |
| 8428 | DSR Oil & Gas, Inc. | Monahans, TX 79756 | Oil & Gas Operator | Nov 2024 |
| 8429 | DSTJ Corporation | Montgomery, TX 77316 | Oil & Gas Operator | Mar 2001 |
| 8430 | DSW Production Corp. | Houston, TX 77265 | Oil & Gas Operator | Nov 2024 |
| 8431 | DSX Operating Co. | Amarillo, TX 79105 | Oil & Gas Operator | Mar 2008 |
| 8432 | Dte Gas Resources, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2007 |
| 8433 | Dte Gas Resources, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Feb 2014 |
| 8434 | Du Pont Oil Comp | | Oil Operator | May 1984 |
| 8435 | Dual Energy, Inc. | | Oil & Gas Operator | Oct 2022 |
| 8436 | Dual Operating & Production Co | Tulsa, OK 74145-7831 | Oil & Gas Operator | Apr 2020 |
| 8437 | Dual Production Partners, LLC | Nacogdoches, TX 75963 | Oil & Gas Operator | Nov 2024 |
| 8438 | Dual Quiver Oil & Gas Op, LLC | Flower Mound, TX 75027 | Oil & Gas Operator | Nov 2024 |
| 8439 | Duane Exploration Limited | Andover, KS 67002 | Oil Operator | Jul 1996 |
| 8440 | Dubach Gas Company | | Oil Operator | May 2003 |
| 8441 | Dubisz, Richard And Deborah | East Aurora, NY 14052 | Gas Operator | Dec 2023 |
| 8442 | Dublin Petroleum Corporation | Enid, OK 73702-6029 | Oil & Gas Operator | Sep 2024 |
| 8443 | Dubois, Allen | Whitewater, KS 67154 | Oil Operator | May 2000 |
| 8444 | Ducharme Oil, LLC | | Oil & Gas Operator | May 2024 |
| 8445 | Duck Bros Dozer & Trucking Inc | Konawa, OK 74849 | Oil & Gas Operator | Sep 2024 |
| 8446 | Duck Creek Energy Inc | Brecksville, OH 44141 | Oil & Gas Operator | Dec 2023 |
| 8447 | Duck Creek Petroleum LLC | Wooster, OH 44691 | Oil & Gas Operator | Dec 2012 |
| 8448 | Duck Oil Company LLC | Konawa, OK 74849 | Oil Operator | Sep 2024 |
| 8449 | Ducky Oil Corporation | Fort Worth, TX 76120 | Oil & Gas Operator | Nov 2024 |
| 8450 | Duco Energy LLC | Tulsa, OK 74145-4514 | Oil & Gas Operator | Mar 2015 |
| 8451 | Ducote Oil Co. | | Oil & Gas Operator | Sep 1997 |
| 8452 | Duderstadt, A. R. | Boling, TX 77420 | Oil & Gas Operator | Nov 2024 |
| 8453 | Dudley Oil Co. | Crane, TX 79731 | Oil & Gas Operator | Jan 2006 |
| 8454 | Dudrey Carl | | Oil & Gas Operator | Feb 1993 |
| 8455 | Duer Wagner & Company | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 1998 |
| 8456 | Duerfeldt | | Oil Operator | Dec 2023 |
| 8457 | Duesler Welding Service | | Oil Operator | Mar 2007 |
| 8458 | Duff Oil Co | | Oil & Gas Operator | Aug 2000 |
| 8459 | Duffer William R | Edmond, OK 73034-6761 | Oil & Gas Operator | Aug 2018 |
| 8460 | Duffield, Scott | | Gas Operator | Dec 2021 |
| 8461 | Dugan Evan | Martinsburg, OH 43037 | Oil & Gas Operator | Dec 2023 |
| 8462 | Dugan Guy E | Walhonding, OH 43843 | Oil & Gas Operator | Dec 2015 |
| 8463 | Dugan Harry Oil Co | Newark, OH 43055 | Oil & Gas Operator | Dec 1993 |
| 8464 | Dugan Oil And Gas LLC | Walhonding, OH 43843-9612-9612 | Oil & Gas Operator | Dec 2023 |
| 8465 | Dugan Production Corp | Farmington, NM 87499 | Oil & Gas Operator | Sep 2024 |
| 8466 | Duggan Stephen F | Boston, MA 2131 | Oil & Gas Operator | Jun 2010 |
| 8467 | Dugger, Glenn | Alice, TX 78332 | Oil & Gas Operator | Nov 2013 |
| 8468 | Duhring Resource Co | Sheffield, PA 16347-2642 | Oil & Gas Operator | Dec 2012 |
| 8469 | Duink, Darryl | Hamburg, NY 14075 | Gas Operator | Dec 2023 |
| 8470 | Duke Drilling Co | Wichita, KS 67202 | Oil & Gas Operator | Feb 2006 |
| 8471 | Duke Energy Field Services Inc | | Oil Operator | Mar 2000 |
| 8472 | Duke Energy Field Services LLC | | Oil Operator | Dec 2006 |
| 8473 | Duke Gas Company LLC | | Gas Operator | Sep 2024 |
| 8474 | Duke Oil & Gas Company, LLC | Wellsville, KS 66092 | Oil Operator | Jul 2024 |
| 8475 | Duke Oil & Gas Inc | Colorado City, TX 79512 | Oil & Gas Operator | May 2003 |
| 8476 | Duke Oil LLC | Garnett, KS 66032 | Oil Operator | Jun 2024 |
| 8477 | Duke Operating Company | Graham, TX 76450 | Oil Operator | Nov 2024 |
| 8478 | Duke, M. L. | Snyder, TX 79549 | Oil & Gas Operator | Mar 2008 |
| 8479 | Duke, M.A. "Andy", Jr. | Montague, TX 76251 | Oil & Gas Operator | Jun 2023 |
| 8480 | Dukes T F | | Oil & Gas Operator | Apr 2007 |
| 8481 | Dula Production, LLC | Stockdale, TX 78160 | Oil Operator | Nov 2024 |
| 8482 | Dunbar & Son Oil | | Oil & Gas Operator | Oct 1988 |
| 8483 | Dunbar, Ron, Inc. | Longview, TX 75606 | Oil & Gas Operator | Jan 2012 |
| 8484 | Duncan Drilling Co. | Big Spring, TX 79721 | Oil & Gas Operator | Nov 2024 |
| 8485 | Duncan Energy Company | Denver, CO 80202 | Oil & Gas Operator | Mar 2008 |
| 8486 | Duncan Energy Companyuncan Energy Company | Denver, CO 80210 | Oil & Gas Operator | Jun 1995 |
| 8487 | Duncan Energy LLC | Dallas, TX 75231 | Oil & Gas Operator | Nov 2024 |
| 8488 | Duncan Jr J Walter | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2016 |
| 8489 | Duncan Land & Exploration, Inc. | Graham, TX 76450 | Oil & Gas Operator | Nov 2024 |
| 8490 | Duncan Oil & Gas Inc | Norman, OK 73072 | Oil & Gas Operator | Sep 2020 |
| 8491 | Duncan Oil Company | Holliday, TX 76366 | Oil Operator | Mar 2008 |
| 8492 | Duncan Oil Inc | Denver, CO 80210 | Oil & Gas Operator | Jun 2016 |
| 8493 | Duncan Oil Properties, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Nov 2024 |
| 8494 | Duncan Petroleum Corp | Velma, OK 73091 | Oil & Gas Operator | Oct 1991 |
| 8495 | Duncan Ronald R | Okemah, OK 74859-9603 | Oil & Gas Operator | Aug 2023 |
| 8496 | Duncan W T | | Oil Operator | Nov 1998 |
| 8497 | Duncan Walter | | Oil & Gas Operator | May 2019 |
| 8498 | Duncan, Gene L Dba Duncan Oil Co | Salem, IL 62881 | Oil Operator | Dec 2018 |
| 8499 | Duncan, Raymond T | Denver, CO 80210 | Oil & Gas Operator | Feb 1996 |
| 8500 | Duncan-Taylor & Schumacher | | Oil & Gas Operator | Nov 1987 |