| 1701 | Dobson Oil And Gas LLC | Deer Creek, OK 74636 | Oil Operator | Aug 2022 |
| 1702 | Dobson Oil Operators Inc | Sapulpa, OK 74066 | Oil & Gas Operator | Dec 2004 |
| 1703 | Doco Development Corporation | Norman, OK 73072 | Oil & Gas Operator | Jan 2026 |
| 1704 | Dolphin Energy LLC | Lake Worth, FL 33467 | Oil & Gas Operator | Sep 2025 |
| 1705 | Domac Oil Company Inc | Perkins, OK 74059-0642 | Oil & Gas Operator | Feb 2006 |
| 1706 | Domar Oil & Gas Inc | Liberal, KS 67905 | Oil & Gas Operator | Oct 2000 |
| 1707 | Dome Petroleum Corp | Denver, CO 80202 | Oil & Gas Operator | Dec 2016 |
| 1708 | Dominion Exp Midcontinent Inc | Oklahoma City, OK 73134-2616 | Oil & Gas Operator | Oct 2024 |
| 1709 | Dominion Exploration & Production Inc | Houston, TX 77060 | Oil & Gas Operator | Apr 2015 |
| 1710 | Dominion Ok TX E & P Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Nov 2018 |
| 1711 | Don'S Oil Company Inc | Oxford, KS 67119-0006 | Oil Operator | Apr 2011 |
| 1712 | Donaldson Richard E | Bartlesville, OK 74005-0032 | Oil & Gas Operator | Nov 2005 |
| 1713 | Doneghy James | Wellington, TX 79095 | Oil & Gas Operator | May 2013 |
| 1714 | Donovan Joe D Or L P McElwaine | Tulsa, OK 74119 | Gas Operator | Jan 2014 |
| 1715 | Donray Petroleum LLC | Choctaw, OK 73020 | Oil & Gas Operator | Dec 2025 |
| 1716 | Donson Corporation | Edmond, OK 73083-0341 | Oil & Gas Operator | Jul 1997 |
| 1717 | Dorado E & P Partners LLC | Tulsa, OK 74103 | Oil & Gas Operator | Jan 2026 |
| 1718 | Dorado Energy LLC | Edmond, OK 73012 | Oil & Gas Operator | Jan 2021 |
| 1719 | Dorchester Exploration, Inc. | Dallas, TX 75231 | Oil & Gas Operator | Aug 2001 |
| 1720 | Dorchester Hugoton LTD | Garland, TX 75042-8212 | Oil & Gas Operator | Mar 2004 |
| 1721 | Dorchester Minerals Operating LP | Dallas, TX 75219 | Oil & Gas Operator | Jun 2022 |
| 1722 | Dorchester Resources LP | Oklahoma City, OK 73154-8879 | Oil & Gas Operator | Aug 2021 |
| 1723 | Dorey Oil Corporation | Healdton, OK 73438-0856 | Oil Operator | Apr 2014 |
| 1724 | Dorfs Drilling Company | Waurika, OK 73573 | Oil & Gas Operator | Nov 2024 |
| 1725 | Dotson Jack M Operating Co | Norman, OK 73072-6649 | Oil Operator | Oct 1993 |
| 1726 | Double "C" Energy | Coweta, OK 74429 | Oil & Gas Operator | Mar 2015 |
| 1727 | Double C Oil & Gas LLC | Jenks, OK 74037-6946 | Oil Operator | Dec 2025 |
| 1728 | Double C Operating LLC | Abilene, TX 79602 | Oil Operator | Mar 2026 |
| 1729 | Double D Oil Co | Winfield, KS 67156 | Oil Operator | Sep 2025 |
| 1730 | Double Eagle Oil & Gas Inc | Enid, OK 73702 | Oil & Gas Operator | Jan 2000 |
| 1731 | Double Eagle Petroleum Corp | Evansville, IN 47725 | Oil & Gas Operator | Mar 2026 |
| 1732 | Double G Oil LLC | | Oil Operator | Dec 2025 |
| 1733 | Double H Petroleum Corporation | Tulsa, OK 74136-5414 | Oil & Gas Operator | May 2006 |
| 1734 | Double J Oil Co LLC | Bristow, OK 74010 | Oil & Gas Operator | Jan 2026 |
| 1735 | Double R Petroleum | | Oil & Gas Operator | Sep 2004 |
| 1736 | Doug And Janene Risenhoover Oil And Gas LLC | Cushing, OK 74023 | Oil Operator | Jan 2026 |
| 1737 | Douglas Fairbanks Holdings LLC | Pine Hurst, TX 77362-9998 | Oil & Gas Operator | Jan 2026 |
| 1738 | Douglas Investments Inc | Fort Worth, TX 76137 | Oil Operator | Jan 2020 |
| 1739 | Douglas Oil & Gas Co Inc | Ada, OK 74820 | Oil Operator | Apr 2014 |
| 1740 | Douglass Dietz & Daley Inc | Oklahoma City, OK 73154-0125 | Oil & Gas Operator | Aug 2023 |
| 1741 | Dove Investments LLC | Wetumka, OK 74883 | Oil Operator | Aug 2025 |
| 1742 | Downhole Oil & Gas Tech LLC | Countyline, OK 73152-0027 | Oil Operator | Oct 2009 |
| 1743 | Draco Production Company | Tulsa, OK 74133 | Oil & Gas Operator | Jul 2012 |
| 1744 | Dragon Energy LLC | Tulsa, OK 74135-7234 | Oil & Gas Operator | Feb 2015 |
| 1745 | Drake Exploration Inc | Tulsa, OK 74105-4250 | Oil & Gas Operator | Jan 2026 |
| 1746 | Drake Exploration LLC | Arkansas City, KS 67005 | Oil & Gas Operator | Dec 2025 |
| 1747 | Draw Oil & Gas Inc | | Oil & Gas Operator | Jun 1995 |
| 1748 | DRG Energy Inc. | Norman, OK 73026-3171 | Oil & Gas Operator | Dec 2025 |
| 1749 | Driver Energy Of Texas | Dallas, TX 75379-5951 | Oil & Gas Operator | Apr 2011 |
| 1750 | Drummond Upstream LLC | Tulsa, OK 74104 | Oil & Gas Operator | Dec 2025 |
| 1751 | Drummond, F F | | Oil Operator | Dec 2025 |
| 1752 | Drumright Well Service Inc | Oilton, OK 74052 | Oil & Gas Operator | Jan 2026 |
| 1753 | Dryes Corner LLC | Oklahoma City, OK 73118 | Oil Operator | Jul 2025 |
| 1754 | DSM Exploration Inc | Oklahoma City, OK 73154 | Oil & Gas Operator | May 1996 |
| 1755 | Dual Operating & Production Co | Tulsa, OK 74145-7831 | Oil & Gas Operator | Apr 2020 |
| 1756 | Dublin Petroleum Corporation | Enid, OK 73702-6029 | Oil & Gas Operator | Jan 2026 |
| 1757 | Duck Bros Dozer & Trucking Inc | Konawa, OK 74849 | Oil & Gas Operator | Dec 2025 |
| 1758 | Duck Oil Company LLC | Konawa, OK 74849 | Oil Operator | Dec 2025 |
| 1759 | Duco Energy LLC | Tulsa, OK 74145-4514 | Oil & Gas Operator | Mar 2015 |
| 1760 | Duffer William R | Edmond, OK 73034-6761 | Oil & Gas Operator | Aug 2018 |
| 1761 | Duggan Stephen F | Boston, MA 2131 | Oil & Gas Operator | Jun 2010 |
| 1762 | Duggins Equipment Inc | Woodward, OK 73802-1213 | Gas Operator | Dec 2025 |
| 1763 | Dukes T F | | Oil & Gas Operator | Apr 2007 |
| 1764 | Duncan Energy Company | Denver, CO 80202 | Oil & Gas Operator | Mar 2008 |
| 1765 | Duncan Energy Inc | | Oil & Gas Operator | Mar 2014 |
| 1766 | Duncan Jr J Walter | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2016 |
| 1767 | Duncan Oil & Gas Inc | Norman, OK 73072 | Oil & Gas Operator | Sep 2020 |
| 1768 | Duncan Oil Properties, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2026 |
| 1769 | Duncan Ronald R | Okemah, OK 74859-9603 | Oil & Gas Operator | Aug 2023 |
| 1770 | Dundee Oil & Supply Inc | Tulsa, OK 74101 | Oil & Gas Operator | Apr 2001 |
| 1771 | Dune Resources Inc | Tulsa, OK 74103 | Oil & Gas Operator | Jan 1993 |
| 1772 | Dunigan Operating Company, Inc. | Austin, TX 78755 | Oil & Gas Operator | Mar 2026 |
| 1773 | Dunkin Oil And Gas LLC | Wynewood, OK 73098-9196 | Oil Operator | Nov 2025 |
| 1774 | Dunlap Drilling And Producing, Inc | Glenpool, OK 74033-4206 | Oil & Gas Operator | Dec 2025 |
| 1775 | Dunlap Oil Company | Bristow, OK 74010 | Oil & Gas Operator | Dec 2025 |
| 1776 | Dunlap Well Service Inc | Haskell, OK 74436 | Oil & Gas Operator | Sep 1993 |
| 1777 | Dunn Energy LLC | Skiatook, OK 74070-4046 | Oil Operator | Sep 2022 |
| 1778 | Dunn'S Oil And Gas Lease Management LLC | Ardmore, OK 73401 | Oil & Gas Operator | Dec 2025 |
| 1779 | Dunne Equities Operating, Inc. | Houston, TX 77057 | Oil & Gas Operator | Aug 2022 |
| 1780 | Dunne Equities, Inc. | Wichita, KS 67226 | Oil & Gas Operator | Apr 2014 |
| 1781 | Durango Energy Inc | Chickasha, OK 73023 | Oil Operator | Dec 1999 |
| 1782 | Durango Exploration LLC | Oklahoma City, OK 73120-5309 | Oil & Gas Operator | Jan 2026 |
| 1783 | Durango Resources Corp. | Houston, TX 77043 | Oil & Gas Operator | Mar 2026 |
| 1784 | Duroc Exploration LLC | Bixby, OK 74008 | Oil & Gas Operator | Dec 2025 |
| 1785 | Durossette Bill D | Haskell, OK 74436-1350 | Oil & Gas Operator | Jul 2004 |
| 1786 | Durossette Floyd R | Warner, OK 74469-0548 | Oil & Gas Operator | Apr 2011 |
| 1787 | Durossette Jr Jess | Haskell, OK 74436 | Oil Operator | Mar 2007 |
| 1788 | DWJS Inc | Oklahoma City, OK 73159 | Oil & Gas Operator | Sep 2024 |
| 1789 | Dyco Petroleum Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Mar 2015 |
| 1790 | Dyer Dale E Dba The Loving Company | Tulsa, OK 74107 | Oil & Gas Operator | Jan 2026 |
| 1791 | Dyne Exploration Company | Plano, TX 75093-6512 | Oil & Gas Operator | Apr 2020 |
| 1792 | Dyno Energy LLC | Oklahoma City, OK 73118 | Oil & Gas Operator | Jan 2026 |
| 1793 | E & E Enterprises | Enid, OK 73703-1420 | Oil & Gas Operator | Nov 2014 |
| 1794 | E & S Resources LLC | Crescent, OK 73028 | Oil & Gas Operator | Oct 2025 |
| 1795 | E Lyle Johnson Inc | Oklahoma City, OK 73142 | Oil & Gas Operator | Dec 2025 |
| 1796 | E R Operating Company | Dallas, TX 75225 | Oil & Gas Operator | Jan 2025 |
| 1797 | E. T. S. Enterprises, Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Jul 1996 |
| 1798 | E2 Operating LLC | Tulsa, OK 74135 | Oil & Gas Operator | Mar 2026 |
| 1799 | E4 Production LLC | Comanche, OK 73529 | Oil Operator | Dec 2025 |
| 1800 | Ea Petroleum Inc | Norman, OK 73072-4147 | Oil & Gas Operator | May 2006 |