| 1601 | Data Energy Inc | Evergreen, CO 80439 | Oil & Gas Operator | Jul 2018 |
| 1602 | Daube Company The | Ardmore, OK 73401 | Oil & Gas Operator | Feb 2025 |
| 1603 | Daube Exploration Company | Ardmore, OK 73402 | Oil & Gas Operator | Nov 2020 |
| 1604 | Dauco Petroleum Corporation | Rowlett, TX 75089-3066 | Oil & Gas Operator | Jan 2021 |
| 1605 | Davco Productions Inc | Springer, OK 73458-8191 | Oil & Gas Operator | Jun 2021 |
| 1606 | David E Morgan Inc | Danville, CA 94506-2035 | Oil & Gas Operator | Jan 2025 |
| 1607 | David Ridley Oil LLC | Tecumseh, OK 74873-7906 | Oil Operator | Jan 2025 |
| 1608 | Davidson Energy Inc | Perry, OK 73077 | Oil & Gas Operator | Jan 2025 |
| 1609 | Davidson Gene | Perry, OK 73077-0144 | Oil & Gas Operator | Aug 2014 |
| 1610 | Davies & Company | Tulsa, OK 74114 | Oil & Gas Operator | Nov 2000 |
| 1611 | Davis & Davis | | Oil & Gas Operator | Dec 2021 |
| 1612 | Davis & Davis Oil Properties Inc | Morris, OK 74445 | Oil Operator | Jan 2025 |
| 1613 | Davis & Hamilton Oil Company | Edmond, OK 73083-3670 | Oil Operator | Aug 2022 |
| 1614 | Davis Bros. Oil Producers, Inc. | Tulsa, OK 74119 | Oil & Gas Operator | Apr 2020 |
| 1615 | Davis Charles K | Morris, OK 74445-2201 | Oil & Gas Operator | Apr 2015 |
| 1616 | Davis Consulting LLC | Tulsa, OK 74104 | Oil Operator | Apr 2024 |
| 1617 | Davis Henry | Tulsa, OK 74135-3567 | Oil & Gas Operator | Dec 1994 |
| 1618 | Davis J L | | Oil & Gas Operator | Aug 2006 |
| 1619 | Davis Jared | Wann, OK 74083-9610 | Oil & Gas Operator | Jan 2025 |
| 1620 | Davis Jim L | Morris, OK 74445 | Oil & Gas Operator | Dec 2021 |
| 1621 | Davis Kendall | Bethany, OK 73008-4714 | Oil Operator | Aug 2016 |
| 1622 | Davis Oil & Gas | Nowata, OK 74048-9659 | Oil & Gas Operator | Jan 2025 |
| 1623 | Davis Oil Company | Pawhuska, OK 74056 | Oil & Gas Operator | Jun 2018 |
| 1624 | Davis Operating Company | Elysian Field, TX 75642 | Oil & Gas Operator | Apr 2025 |
| 1625 | Davis William H | Tulsa, OK 74103 | Oil & Gas Operator | Apr 2014 |
| 1626 | Davis William W | | Oil Operator | Jun 2024 |
| 1627 | Davis, Joe D. | Fort Smith, AR 72903 | Gas Operator | Mar 2015 |
| 1628 | Davis/Osage Corp | Tulsa, OK 74103 | Oil Operator | Jan 2001 |
| 1629 | Davon Drilling Company | Oklahoma City, OK 73113-0665 | Oil & Gas Operator | Mar 2015 |
| 1630 | Dawes, Tom E | | Oil Operator | Oct 2000 |
| 1631 | Dawso Levi | Pawhuska, OK 74056 | Oil & Gas Operator | Mar 2015 |
| 1632 | Dawson Geophysical Company | Midland, TX 79701 | Oil Operator | Aug 2024 |
| 1633 | Dawson Resources Inc | Franktown, CO 80116 | Oil & Gas Operator | Mar 2015 |
| 1634 | Dawson-Markwell Exploration Co. | Oklahoma City, OK 73101 | Oil & Gas Operator | Jan 2025 |
| 1635 | Daxin Energy Corporation | Seminole, OK 74868-2208 | Oil Operator | Jan 2013 |
| 1636 | Day Richard H | Wann, OK 74083-9608 | Oil Operator | Mar 2015 |
| 1637 | Daylight Petroleum LLC | Houston, TX 77052 | Oil & Gas Operator | Apr 2025 |
| 1638 | DBJ Inc | Maysville, OK 73057 | Oil Operator | Jan 2005 |
| 1639 | DBS Oil Operating | Pawhuska, OK 74056 | Oil Operator | Jan 2025 |
| 1640 | Dby Investments LLC | Lago VIsta, TX 78645-8011 | Oil & Gas Operator | Nov 2016 |
| 1641 | DC Operating LLC | Yale, OK 74085-6662 | Oil & Gas Operator | Mar 2020 |
| 1642 | DCP Operating Co LP | Houston, TX 77042 | Oil & Gas Operator | Jan 2025 |
| 1643 | DDC Oil LLC | Rockwall, TX 75087-5383 | Oil Operator | Mar 2020 |
| 1644 | DDD Exploration, Inc. | Amarillo, TX 79109 | Oil Operator | Apr 2025 |
| 1645 | Dead Fern Resources Inc | Sperry, OK 74073 | Oil & Gas Operator | Feb 2025 |
| 1646 | Dead Horse Oil & Gas LLC | Skiatook, OK 74070-9343 | Oil & Gas Operator | Jun 2015 |
| 1647 | Dean'S Well Servicing Inc | Ratliff City, OK 73481 | Oil & Gas Operator | Jan 2025 |
| 1648 | Dearing, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Mar 2021 |
| 1649 | Deaton, Gary L. Corporation | Oklahoma City, OK 73105 | Oil & Gas Operator | Mar 2015 |
| 1650 | Deb Oil & Gas Inc | Tulsa, OK 74136 | Oil & Gas Operator | May 2013 |
| 1651 | Decalta International Corp | Denver, CO 80202 | Oil & Gas Operator | Mar 2015 |
| 1652 | Deck Exploration Inc | Perry, OK 73077-0303 | Oil & Gas Operator | May 2013 |
| 1653 | Deck Oil Company | Tulsa, OK 74101 | Oil & Gas Operator | Jun 2020 |
| 1654 | Dedica Energy Corporation | Mattoon, IL 61938 | Oil & Gas Operator | Mar 2008 |
| 1655 | Dee-Jay Exploration Company | Nichols Hill, OK 73116 | Oil & Gas Operator | Apr 2025 |
| 1656 | Deep Rock LLC | Tulsa, OK 74137-1612 | Gas Operator | Jun 2022 |
| 1657 | Degge Oil Field Service | Okemah, OK 74859-0269 | Oil Operator | Nov 2014 |
| 1658 | Degge Oilfield Services LLC | Okemah, OK 74859 | Oil Operator | Jan 2025 |
| 1659 | Dehart Company (The) | Ardmore, OK 73402 | Oil & Gas Operator | Feb 2025 |
| 1660 | Deisenroth Gas Products Inc | Tulsa, OK 74104 | Oil & Gas Operator | Aug 2022 |
| 1661 | Deisenroth M Craig | Tulsa, OK 74104-6511 | Oil & Gas Operator | Nov 2024 |
| 1662 | Deka Exploration Inc | Oklahoma City, OK 73113-0057 | Oil & Gas Operator | Nov 2019 |
| 1663 | Delek Energy Systems Us Inc | Denver, CO 80202 | Oil & Gas Operator | Oct 2011 |
| 1664 | Dell Charles E | Cleveland, OK 74020-0090 | Oil & Gas Operator | Feb 2015 |
| 1665 | Delong Oil & Gas Serv Inc | Cushing, OK 74023 | Oil & Gas Operator | Dec 2024 |
| 1666 | Delong Ralph J | Sapulpa, OK 74066 | Oil & Gas Operator | Nov 2005 |
| 1667 | Delong, Ralph S | | Oil & Gas Operator | Jul 2024 |
| 1668 | Delphi Oil And Gas LLC | Macomb, OK 74852 | Oil Operator | Jan 2025 |
| 1669 | Delta D Operations | Wilson, OK 73463 | Oil & Gas Operator | Jul 2014 |
| 1670 | Delta D Operations Inc | Ardmore, OK 73401-8678 | Oil & Gas Operator | Apr 2014 |
| 1671 | Delta Petroleum Inc | Houston, TX 77269-1007 | Oil & Gas Operator | May 2009 |
| 1672 | Dem Operations Inc | Lamont, OK 74643-5010 | Oil & Gas Operator | Feb 2025 |
| 1673 | Demco Oil & Gas Company | Blackwell, OK 74631-4203 | Oil & Gas Operator | Jan 2025 |
| 1674 | Demier Oil Company | Tulsa, OK 74105-2128 | Oil & Gas Operator | Nov 2008 |
| 1675 | Deminex U.S. Oil Company | | Oil & Gas Operator | Jan 1998 |
| 1676 | Demo Oil Co | | Oil Operator | Jan 2020 |
| 1677 | Dempsey, Wayne L | | Oil & Gas Operator | Mar 2011 |
| 1678 | Denell Oil Corporation | Yukon, OK 73085 | Oil & Gas Operator | Jul 1994 |
| 1679 | Denham Danny D | Kellyville, OK 74039 | Oil & Gas Operator | Jan 2025 |
| 1680 | Denham Operating Company | Tulsa, OK 74101-3627 | Oil & Gas Operator | Aug 2022 |
| 1681 | Dennett'S Inc | Enid, OK 73701-1851 | Oil & Gas Operator | Apr 2014 |
| 1682 | Denney Don | Citrus Heights, CA 95611-2473 | Oil Operator | Aug 2023 |
| 1683 | Dennis & Davis Oil Co. | Nocona, TX 76255 | Oil & Gas Operator | Apr 2025 |
| 1684 | Dennis Don Oil Company | Grady, OK 73569-9998 | Oil Operator | Jan 2002 |
| 1685 | Dennison George | Tulsa, OK 74112-6732 | Oil & Gas Operator | Apr 2020 |
| 1686 | Denveramerican Petro LLC | | Oil & Gas Operator | May 2006 |
| 1687 | Depco Inc. | Denver, CO 80202 | Oil & Gas Operator | Apr 2014 |
| 1688 | Derae Oil Company | Seminole, OK 74868-2617 | Oil & Gas Operator | Feb 1997 |
| 1689 | Derby Exploration LLC | Okc, OK 73102 | Oil & Gas Operator | Feb 2025 |
| 1690 | Dernick Resources, Inc. | Dallas, TX 75204 | Oil & Gas Operator | Jan 2002 |
| 1691 | Derrick Resources Inc. | Henryetta, OK 74437-4249 | Oil & Gas Operator | Jan 2025 |
| 1692 | Des Oil Incorporated | Sedan, KS 67361 | Oil Operator | Nov 1998 |
| 1693 | Deshazo Production Company | Dewey, OK 74029-2811 | Oil & Gas Operator | Nov 2005 |
| 1694 | Deshields Gary | Atwood, OK 74827 | Oil Operator | Sep 2024 |
| 1695 | Deshields Oil & Gas Inc | Okemah, OK 74859-9612 | Oil & Gas Operator | Sep 2014 |
| 1696 | Destin Corporation | Enid, OK 73702-2403 | Oil & Gas Operator | Mar 2005 |
| 1697 | Dette Oil Corporation | Oklahoma City, OK 73162-6249 | Oil & Gas Operator | Oct 2015 |
| 1698 | Devon Energy Corp (Nevada) | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2017 |
| 1699 | Devon Energy Operating Corp | Oklahoma City, OK 73102 | Oil & Gas Operator | Apr 2013 |
| 1700 | Devon Energy Production Company LP | Oklahoma City, OK 73102 | Oil & Gas Operator | Apr 2025 |