| 1301 | Driscoll S.W.D. Inc. | San Antonio, TX 78229 | Oil & Gas Operator | Apr 2024 |
| 1302 | Driscoll, Jerry J Oil Investment Inc | Russell, KS 67665 | Oil Operator | Dec 2023 |
| 1303 | Driver Energy Of Texas | Dallas, TX 75379-5951 | Oil & Gas Operator | Apr 2011 |
| 1304 | DRL Operating In | | Oil Operator | Sep 1986 |
| 1305 | Drmas, LLC | | Oil & Gas Operator | Nov 2023 |
| 1306 | Drop Tine Exploration, LLC | Medicine Lodge, KS 67104 | Oil & Gas Operator | Dec 2019 |
| 1307 | DRS Exploration Inc. | San Antonio, TX 78209 | Oil & Gas Operator | May 1999 |
| 1308 | Drum Energy Corp | Hobbs, NM 88241 | Oil & Gas Operator | Mar 1996 |
| 1309 | Drum Energy, L.L.C. | | Gas Operator | Dec 2016 |
| 1310 | Drum Oil & Gas, Inc. | Houston, TX 77082 | Oil & Gas Operator | Apr 2024 |
| 1311 | Drum, Delton | Liberty, TX 77575 | Oil & Gas Operator | Jul 2005 |
| 1312 | Drummond, F F | | Oil Operator | Dec 2023 |
| 1313 | Drumright Well Service Inc | Oilton, OK 74052-0190 | Oil & Gas Operator | Dec 2023 |
| 1314 | Dry Coulee Oil & Gas Company | Oilmont, MT 59466 | Oil Operator | Oct 2003 |
| 1315 | Dry Creek Disposal Company, Inc. | | Oil & Gas Operator | Nov 2021 |
| 1316 | Dry Creek Operating, LLC | Fort Worth, TX 76109 | Oil & Gas Operator | Apr 2024 |
| 1317 | Dry Fork Production Co | Wichita Falls, TX 76301 | Oil Operator | Apr 2003 |
| 1318 | Dry Fork Production Co., LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2024 |
| 1319 | Dry Hole Producing LLC | Poland, OH 44514 | Oil & Gas Operator | Dec 2023 |
| 1320 | Dry Hole Producing LP | Poland, OH 44514-3631-3631 | Oil & Gas Operator | Dec 2019 |
| 1321 | Dryes Corner LLC | Crescent, OK 73028-0502 | Oil Operator | Jul 2023 |
| 1322 | DSB Energy, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Apr 2024 |
| 1323 | DSM Exploration Inc | Oklahoma City, OK 73154 | Oil & Gas Operator | May 1996 |
| 1324 | DSR Oil & Gas, Inc. | Monahans, TX 79756 | Oil & Gas Operator | Apr 2024 |
| 1325 | DSTJ Corporation | Montgomery, TX 77316 | Oil & Gas Operator | Mar 2001 |
| 1326 | DSW Production Corp. | Houston, TX 77265 | Oil & Gas Operator | Apr 2024 |
| 1327 | DSX Operating Co. | Amarillo, TX 79105 | Oil & Gas Operator | Mar 2008 |
| 1328 | Dte Gas Resources, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2007 |
| 1329 | Dte Gas Resources, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Feb 2014 |
| 1330 | Du Pont Oil Comp | | Oil Operator | May 1984 |
| 1331 | Dual Energy, Inc. | | Oil & Gas Operator | Oct 2022 |
| 1332 | Dual Operating & Production Co | Tulsa, OK 74145-7831 | Oil & Gas Operator | Apr 2020 |
| 1333 | Dual Production Partners, LLC | Nacogdoches, TX 75963 | Oil & Gas Operator | Apr 2024 |
| 1334 | Dual Quiver Oil & Gas Op, LLC | Flower Mound, TX 75027 | Oil & Gas Operator | Apr 2024 |
| 1335 | Duane Exploration Limited | Andover, KS 67002 | Oil Operator | Jul 1996 |
| 1336 | Dubach Gas Company | | Oil Operator | May 2003 |
| 1337 | Dubisz, Richard And Deborah | East Aurora, NY 14052 | Gas Operator | Dec 2022 |
| 1338 | Dublin Petroleum Corporation | Enid, OK 73702-6029 | Oil & Gas Operator | Jan 2024 |
| 1339 | Dubois, Allen | Whitewater, KS 67154 | Oil Operator | May 2000 |
| 1340 | Ducharme Oil, LLC | | Oil & Gas Operator | Nov 2023 |
| 1341 | Duck Bros Dozer & Trucking Inc | Konawa, OK 74849-0127 | Oil & Gas Operator | Dec 2023 |
| 1342 | Duck Creek Energy Inc | Brecksville, OH 44141 | Oil & Gas Operator | Dec 2023 |
| 1343 | Duck Creek Petroleum LLC | Wooster, OH 44691 | Oil & Gas Operator | Dec 2012 |
| 1344 | Duck Oil Company LLC | | Oil Operator | Jan 2024 |
| 1345 | Ducky Oil Corporation | Fort Worth, TX 76120 | Oil & Gas Operator | Apr 2024 |
| 1346 | Duco Energy LLC | Tulsa, OK 74145-4514 | Oil & Gas Operator | Mar 2015 |
| 1347 | Ducote Oil Co. | | Oil & Gas Operator | Sep 1997 |
| 1348 | Duderstadt, A. R. | Boling, TX 77420 | Oil & Gas Operator | Apr 2024 |
| 1349 | Dudley Oil Co. | Crane, TX 79731 | Oil & Gas Operator | Jan 2006 |
| 1350 | Dudrey Carl | | Oil & Gas Operator | Feb 1993 |
| 1351 | Duer Wagner & Company | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 1998 |
| 1352 | Duerfeldt | | Oil Operator | Dec 2022 |
| 1353 | Duesler Welding Service | | Oil Operator | Mar 2007 |
| 1354 | Duff Oil Co | | Oil & Gas Operator | Aug 2000 |
| 1355 | Duffer William R | Edmond, OK 73034-6761 | Oil & Gas Operator | Aug 2018 |
| 1356 | Duffield, Scott | | Gas Operator | Dec 2021 |
| 1357 | Dugan Evan | Martinsburg, OH 43037 | Oil & Gas Operator | Dec 2023 |
| 1358 | Dugan Guy E | Walhonding, OH 43843 | Oil & Gas Operator | Dec 2015 |
| 1359 | Dugan Harry Oil Co | Newark, OH 43055 | Oil & Gas Operator | Dec 1993 |
| 1360 | Dugan Oil And Gas LLC | Walhonding, OH 43843-9612-9612 | Oil & Gas Operator | Dec 2023 |
| 1361 | Dugan Production Corp | Farmington, NM 87499 | Oil & Gas Operator | Feb 2024 |
| 1362 | Duggan Stephen F | Boston, MA 2131 | Oil & Gas Operator | Jun 2010 |
| 1363 | Dugger, Glenn | Alice, TX 78332 | Oil & Gas Operator | Nov 2013 |
| 1364 | Duhring Resource Co | Sheffield, PA 16347-2642 | Oil & Gas Operator | Dec 2012 |
| 1365 | Duink, Darryl | Hamburg, NY 14075 | Gas Operator | Dec 2022 |
| 1366 | Duke Drilling Co | Wichita, KS 67202 | Oil & Gas Operator | Feb 2006 |
| 1367 | Duke Energy Field Services Inc | | Oil Operator | Mar 2000 |
| 1368 | Duke Energy Field Services LLC | | Oil Operator | Dec 2006 |
| 1369 | Duke Gas Company LLC | | Gas Operator | Feb 2024 |
| 1370 | Duke Oil & Gas Company, LLC | Wellsville, KS 66092 | Oil Operator | Dec 2023 |
| 1371 | Duke Oil & Gas Inc | Colorado City, TX 79512 | Oil & Gas Operator | May 2003 |
| 1372 | Duke Operating Company | Graham, TX 76450 | Oil Operator | Apr 2024 |
| 1373 | Duke, M. L. | Snyder, TX 79549 | Oil & Gas Operator | Mar 2008 |
| 1374 | Duke, M.A. "Andy", Jr. | Montague, TX 76251 | Oil & Gas Operator | Jun 2023 |
| 1375 | Dukes T F | | Oil & Gas Operator | Apr 2007 |
| 1376 | Dula Production, LLC | Stockdale, TX 78160 | Oil Operator | Apr 2024 |
| 1377 | Dunbar & Son Oil | | Oil & Gas Operator | Oct 1988 |
| 1378 | Dunbar, Ron, Inc. | Longview, TX 75606 | Oil & Gas Operator | Jan 2012 |
| 1379 | Duncan Drilling Co. | Big Spring, TX 79721 | Oil & Gas Operator | Apr 2024 |
| 1380 | Duncan Energy Company | Denver, CO 80202 | Oil & Gas Operator | Mar 2008 |
| 1381 | Duncan Energy Companyuncan Energy Company | Denver, CO 80210 | Oil & Gas Operator | Jun 1995 |
| 1382 | Duncan Energy LLC | Dallas, TX 75231 | Oil & Gas Operator | Apr 2024 |
| 1383 | Duncan Jr J Walter | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2016 |
| 1384 | Duncan Land & Exploration, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2024 |
| 1385 | Duncan Oil & Gas Inc | Norman, OK 73070-8155 | Oil & Gas Operator | Sep 2020 |
| 1386 | Duncan Oil Company | Holliday, TX 76366 | Oil Operator | Mar 2008 |
| 1387 | Duncan Oil Inc | Denver, CO 80210 | Oil & Gas Operator | Jun 2016 |
| 1388 | Duncan Oil Properties, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Apr 2024 |
| 1389 | Duncan Petroleum Corp | Velma, OK 73091 | Oil & Gas Operator | Oct 1991 |
| 1390 | Duncan Ronald R | Okemah, OK 74859-9603 | Oil & Gas Operator | Aug 2023 |
| 1391 | Duncan W T | | Oil Operator | Nov 1998 |
| 1392 | Duncan Walter | | Oil & Gas Operator | May 2019 |
| 1393 | Duncan, Gene L Dba Duncan Oil Co | Salem, IL 62881 | Oil Operator | Dec 2018 |
| 1394 | Duncan, Raymond T | Denver, CO 80210 | Oil & Gas Operator | Feb 1996 |
| 1395 | Duncan-Taylor & Schumacher | | Oil & Gas Operator | Nov 1987 |
| 1396 | Dundee Oil & Supply Inc | Tulsa, OK 74101 | Oil & Gas Operator | Apr 2001 |
| 1397 | Dundee Petroleum, Inc. | Buffalo Gap, TX 79508 | Oil & Gas Operator | Aug 2003 |
| 1398 | Dune Oil And Gas, Inc. | Odessa, TX 79768 | Oil & Gas Operator | Aug 2006 |
| 1399 | Dune Operating Company | Dallas, TX 75201 | Oil & Gas Operator | Jun 2016 |
| 1400 | Dune Petroleum Corporation | Midland, TX 79702 | Oil & Gas Operator | Apr 1997 |