| 1701 | Routh Operating, LLC | Dallas, TX 75204 | Oil & Gas Operator | Mar 2011 |
| 1702 | Rouxopco LLC | | Oil Operator | Dec 2024 |
| 1703 | Rouzer Oil Company | Spencer, WV 25276 | Oil & Gas Operator | Dec 2021 |
| 1704 | Rover Construction, LLC | | Oil Operator | Dec 2023 |
| 1705 | Rover Operating Company, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Jun 2025 |
| 1706 | Rover Operating Inc | Richardson, TX 75080 | Oil & Gas Operator | Apr 2000 |
| 1707 | Rover Operating, LLC | Chicago, IL 60606 | Oil & Gas Operator | Mar 2025 |
| 1708 | Rover Operations Inc | Richardson, TX 75080 | Oil & Gas Operator | Sep 1998 |
| 1709 | Rover Petroleum Operating, LLC | Plano, TX 75075 | Oil & Gas Operator | Jun 2025 |
| 1710 | Rovig Minerals, Inc. | | Oil & Gas Operator | May 2020 |
| 1711 | Rovsek Adolph E | | Oil & Gas Operator | Oct 1991 |
| 1712 | Rowan, Al | Van, TX 75790 | Oil & Gas Operator | Apr 2021 |
| 1713 | Rowan-Ungerecht, Inc. | Van, TX 75790 | Oil & Gas Operator | Sep 1993 |
| 1714 | Rowden Oil & Gas, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Jun 2023 |
| 1715 | Rowden, John A. | Chanute, KS 66720 | Oil Operator | Oct 1998 |
| 1716 | Rowe Energy | Beggs, OK 74421-0240 | Oil & Gas Operator | Mar 2015 |
| 1717 | Rowe Oil And Gas, Inc. | | Oil & Gas Operator | Jun 1999 |
| 1718 | Rowe Oil Co. | | Oil Operator | Jan 2002 |
| 1719 | Rowe Stephen Oil Properties LLC | Hunt, TX 78024 | Oil & Gas Operator | Apr 2020 |
| 1720 | Rowe, Inc. | | Oil & Gas Operator | Jun 1992 |
| 1721 | Rowland Tank Truck Company | Sherman, TX 75090 | Oil & Gas Operator | Jun 2025 |
| 1722 | Rowland, David M. | East Aurora, NY 14052 | Gas Operator | Dec 2023 |
| 1723 | Rowland, Rex D. | Midland, TX 79701 | Oil & Gas Operator | Dec 2017 |
| 1724 | Rowland, Rex D. Estate Of | Dallas, TX 75252 | Oil & Gas Operator | Jun 2025 |
| 1725 | Rox Exploration Inc | Norman, OK 73069-6301 | Oil & Gas Operator | Mar 2025 |
| 1726 | Roxana Corporati | | Oil & Gas Operator | Feb 1993 |
| 1727 | Roxanna Acadia, LLC | | Oil & Gas Operator | May 2023 |
| 1728 | Roxanna Nebraska, LLC | | Oil Operator | Dec 2023 |
| 1729 | Roxanna Oil Company | Oklahoma City, OK 73120-2717 | Oil Operator | Aug 2016 |
| 1730 | Roxanna Pipeline, Inc. | Dallas, TX 75206 | Oil & Gas Operator | May 2010 |
| 1731 | Roxi Production | Pampa, TX 79065 | Oil & Gas Operator | Jun 2025 |
| 1732 | Roy D. Gish | | Oil & Gas Operator | Sep 2019 |
| 1733 | Roy E Kimsey Jr | Midland, TX 79701 | Oil & Gas Operator | Jul 2018 |
| 1734 | Roy Farr Heirs | | Oil Operator | Jun 2013 |
| 1735 | Roy G Oil Company | Drumright, OK 74030-1236 | Oil & Gas Operator | Oct 1995 |
| 1736 | Roy Jackson Energy Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Jun 2025 |
| 1737 | Roy L Ashton Oil & Gas Production Inc | Sapulpa, OK 74066 | Oil Operator | Feb 2025 |
| 1738 | Roy M. Huffington, Inc. | | Oil & Gas Operator | Jul 1983 |
| 1739 | Roy M. Teel | | Oil & Gas Operator | Nov 1983 |
| 1740 | Roy Production Co. | Shamrock, TX 79079 | Oil & Gas Operator | Jul 2012 |
| 1741 | Roya Resources LLC | | Oil & Gas Operator | Mar 2022 |
| 1742 | Royal American Oil & Gas | Post, TX 79356 | Oil & Gas Operator | Jan 2019 |
| 1743 | Royal Carolina Producers, LLC | | Oil Operator | Dec 2015 |
| 1744 | Royal Drilling Inc | Russell, KS 67665 | Oil Operator | Feb 2025 |
| 1745 | Royal Energy Resources LTD | Denver, CO 80221 | Oil & Gas Operator | May 2013 |
| 1746 | Royal Energy, Inc. | Dodge City, KS 67801 | Oil Operator | Dec 2019 |
| 1747 | Royal Oaks Petroleum Corp | Fort Worth, TX 76116 | Oil & Gas Operator | Dec 2001 |
| 1748 | Royal Oil & Gas Corp. | Indiana, PA 15701 | Oil & Gas Operator | Apr 2014 |
| 1749 | Royal Oil LLC | Flower Mound, TX 75028 | Oil Operator | Dec 2015 |
| 1750 | Royal Oil LTD. Co. | Hobbs, NM 88241 | Oil & Gas Operator | Mar 1996 |
| 1751 | Royal Petroleum | Baytown, TX 77521 | Oil & Gas Operator | Aug 2003 |
| 1752 | Royal Petroleum Co. | Iowa Park, TX 76367 | Oil & Gas Operator | Jun 2025 |
| 1753 | Royal Petroleum Corp. | Dallas, TX 75229 | Oil & Gas Operator | Jan 2025 |
| 1754 | Royal Petroleum Prop Inc | Woodville, OH 43469 | Oil & Gas Operator | Dec 1990 |
| 1755 | Royal Production Company, Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Jun 2025 |
| 1756 | Royal Resources Corporation | | Oil & Gas Operator | Dec 2008 |
| 1757 | Royal Resources Exploration | | Oil & Gas Operator | Mar 1984 |
| 1758 | Royal Seahorse Developments Inc | San Antonio, TX 78209 | Oil & Gas Operator | Oct 1994 |
| 1759 | Royal Texan Energy Co. | Irvine, CA 92618 | Oil & Gas Operator | Jun 2025 |
| 1760 | Royal Texan Resources Co. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2025 |
| 1761 | Royal Texas Petroleum | Lago VIsta, TX 78645 | Oil & Gas Operator | Jun 2025 |
| 1762 | Royale Energy Inc | San Diego, CA 92108-4518 | Oil & Gas Operator | Apr 2025 |
| 1763 | Royale Operating Company | San Diego, CA 92108 | Oil & Gas Operator | Apr 1996 |
| 1764 | Royalton Gas & Oil Co | Brunswick, OH 44212 | Oil & Gas Operator | Dec 1990 |
| 1765 | Royalty Energy Development LLC | Edmond, OK 73003 | Oil & Gas Operator | Mar 2025 |
| 1766 | Royalty Land & Dev. Co., Inc. | Wolfforth, TX 79382 | Oil & Gas Operator | Jun 2025 |
| 1767 | Royalty Management & Dev Corp. | | Oil & Gas Operator | Apr 1998 |
| 1768 | Royalty Operating, Inc. | Richardson, TX 75081 | Oil & Gas Operator | Nov 2007 |
| 1769 | Royalty Petroleum Company | Oklahoma City, OK 73120 | Gas Operator | Feb 2002 |
| 1770 | Royalty Resources, L.L.C. | Midland, TX 79702 | Oil & Gas Operator | Jun 2025 |
| 1771 | Roye Realty & Developing Inc | Stigler, OK 74462-0148 | Gas Operator | Dec 2004 |
| 1772 | Royko Oil Company | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Jun 2025 |
| 1773 | Rozel Operating Company | | Oil & Gas Operator | Oct 2014 |
| 1774 | Rozen H H | | Oil Operator | Aug 2022 |
| 1775 | Rozuk, Claudia | Millersburg, OH 44654 | Gas Operator | Dec 2023 |
| 1776 | Rozzlle Operating Company, LLC | Blackwell, TX 79506 | Oil & Gas Operator | Jun 2025 |
| 1777 | RP Operating, L.L.C. | Houston, TX 77002 | Oil & Gas Operator | Jun 2025 |
| 1778 | Rpa Energy LLC | Ada, OK 74820 | Oil Operator | Feb 2025 |
| 1779 | RPG Operating LLC | MC Queeney, TX 78123 | Oil Operator | Jun 2025 |
| 1780 | RPJ Fund Management Inc | St. Paul, MN 55101 | Oil & Gas Operator | Dec 1991 |
| 1781 | RPM Oilfield Services LLC | Lindsay, OK 73052-8005 | Oil & Gas Operator | Feb 2025 |
| 1782 | RPM Operating Company | New Braunfels, TX 78131 | Oil & Gas Operator | Mar 2008 |
| 1783 | RPM Petroleum, LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | Apr 2013 |
| 1784 | RPS Energy, Inc. | | Oil & Gas Operator | Jul 2020 |
| 1785 | RR Oil Well Operations LLC | Ringwood, OK 73768 | Oil & Gas Operator | Mar 2025 |
| 1786 | RR Ventures Limited Partnership | San Antonio, TX 78239 | Oil & Gas Operator | Jun 2025 |
| 1787 | RRCH Corp. | Longview, TX 75606 | Oil & Gas Operator | Dec 2013 |
| 1788 | RRG Operating, LLC | Odessa, TX 79760 | Oil & Gas Operator | Jun 2025 |
| 1789 | Rrig Exploration, LLC | Fort Worth, TX 76147 | Oil & Gas Operator | Jun 2025 |
| 1790 | RRKK LLC | Columbus, OH 43214-3072 | Oil Operator | Dec 2024 |
| 1791 | RRP Operating LLC | Houston, TX 77046 | Oil & Gas Operator | Jun 2025 |
| 1792 | RRR Exploration, Inc. | Dallas, TX 75247 | Oil & Gas Operator | May 1994 |
| 1793 | RS Gas Co Inc | Sprankle Mills, PA 15776-8312 | Gas Operator | Dec 2024 |
| 1794 | RSC Energy Corp | Brooklyn HTS, OH 44109 | Oil & Gas Operator | Dec 1984 |
| 1795 | RSC Resources Limited Partnership | Midland, TX 79707 | Oil & Gas Operator | Apr 2013 |
| 1796 | RSD Minerals LLC | Wichita, KS 67206 | Oil Operator | Oct 2024 |
| 1797 | Rse, Inc. | Houston, TX 77077 | Oil & Gas Operator | Sep 2000 |
| 1798 | RSP Permian, LLC | Midland, TX 79701 | Oil & Gas Operator | Jul 2018 |
| 1799 | Rta Petroleum, LLC | | Oil Operator | Dec 2024 |
| 1800 | RTB Oil Inc | Crescent, OK 73028-0686 | Oil Operator | May 2016 |