| 1801 | Southstone Energy, LLC | Austin, TX 78735 | Oil Operator | Apr 2024 |
| 1802 | Southwell Russell C | Warren, PA 16365-3686 | Oil & Gas Operator | Dec 2022 |
| 1803 | Southwell William R | Warren, PA 16365-1259 | Oil & Gas Operator | Dec 2017 |
| 1804 | Southwest Energy Devel.,Inc. | Sugar Land, TX 77478 | Oil & Gas Operator | Jul 2007 |
| 1805 | Southwest Energy Development Inc | Waukomis, OK 73720-0022 | Oil & Gas Operator | Jan 2024 |
| 1806 | Southwest Energy LP | Houston, TX 77002 | Oil & Gas Operator | Sep 2022 |
| 1807 | Southwest Exploration Company | Oklahoma City, OK 73132-2230 | Oil & Gas Operator | Jun 2017 |
| 1808 | Southwest Gas Producing Co Inc | | Oil & Gas Operator | Nov 1994 |
| 1809 | Southwest Gas St | | Oil & Gas Operator | Dec 1981 |
| 1810 | Southwest Gas Storage Company | | Gas Operator | Dec 2023 |
| 1811 | Southwest Gas Systems, Inc. | Spring, TX 77379 | Oil & Gas Operator | Apr 2024 |
| 1812 | Southwest Gathering Company | Alice, TX 78332 | Oil & Gas Operator | Apr 2024 |
| 1813 | Southwest General Dev., Inc. | | Oil & Gas Operator | Dec 2003 |
| 1814 | Southwest Land & Minerals, Inc. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Aug 2003 |
| 1815 | Southwest Loop 1604, LTD. | San Antonio, TX 78209 | Oil Operator | Sep 2022 |
| 1816 | Southwest Mississippi Oil & Gas, LLC. | | Oil Operator | Jan 2024 |
| 1817 | Southwest Oil & Land, Inc. | Corpus Chrsti, TX 78460 | Oil & Gas Operator | Dec 1999 |
| 1818 | Southwest Oil Properties, Inc. | | Oil & Gas Operator | Feb 1996 |
| 1819 | Southwest Operating Company | Overland Park, KS 66212 | Oil & Gas Operator | Mar 2012 |
| 1820 | Southwest Operating Inc. | | Oil & Gas Operator | Dec 2023 |
| 1821 | Southwest Operating, Inc.-Tyler | Tyler, TX 75701 | Oil & Gas Operator | Apr 2024 |
| 1822 | Southwest Petroleum | San Antonio, TX 78253 | Oil & Gas Operator | Apr 2024 |
| 1823 | Southwest Petroleum Corp | Drumright, OK 74030-0552 | Oil & Gas Operator | Mar 2018 |
| 1824 | Southwest Petroleum Oil & Gas Explor LLC | San Bernardino, CA 92404-1010 | Oil & Gas Operator | Jun 2022 |
| 1825 | Southwest Resources, Inc. | Brenham, TX 77834 | Oil & Gas Operator | Apr 2024 |
| 1826 | Southwest Rig Service | | Oil & Gas Operator | Nov 1998 |
| 1827 | Southwest Royalties Inc | Midland, TX 79710 | Oil & Gas Operator | Apr 2024 |
| 1828 | Southwest-Operating | Penwell, TX 79776 | Oil & Gas Operator | Apr 2024 |
| 1829 | Southwestern Central School District | Jamestown, NY 14701 | Gas Operator | Dec 2022 |
| 1830 | Southwestern Electric Power Co | Dallas, TX 75266 | Oil & Gas Operator | Dec 1989 |
| 1831 | Southwestern Energy Prod Co | Houston, TX 77032 | Oil & Gas Operator | Jun 2015 |
| 1832 | Southwestern Exploration Consultants Inc | Oklahoma City, OK 73118-1116 | Oil & Gas Operator | Feb 2024 |
| 1833 | Southwestern Inc | Hobbs, NM 88240 | Oil Operator | Oct 2009 |
| 1834 | Southwestern Production Corporation | Lakewood, CO 80228 | Oil & Gas Operator | Mar 2024 |
| 1835 | Southwind Consulting | Pratt, KS 67124 | Oil Operator | Oct 1997 |
| 1836 | Southwind Exploration, LLC | Venice, FL 34293 | Oil & Gas Operator | Sep 2003 |
| 1837 | Southwind Oil & Gas LLC | | Oil & Gas Operator | Dec 2023 |
| 1838 | Southwind Petroleum Corp. | Wichita, KS 67203 | Oil & Gas Operator | Jun 2023 |
| 1839 | Sovereign Eagle, LLC | Roswell, NM 88202 | Oil & Gas Operator | Jul 2018 |
| 1840 | Sovereign Energy Corp. | | Oil Operator | Dec 2001 |
| 1841 | Sovereign Energy LLC | | Oil & Gas Operator | Sep 2011 |
| 1842 | Sovereign Operating Company LLC | Denver, CO 80202 | Oil & Gas Operator | Apr 2016 |
| 1843 | Sovereign Petroleum Company, LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | Jul 2013 |
| 1844 | Sowers William & Sara | Blue Rock, OH 43720 | Oil Operator | Dec 2022 |
| 1845 | Sowle Exploratio | | Oil Operator | Aug 1986 |
| 1846 | Sowle Explorations | | Oil Operator | Dec 2002 |
| 1847 | Sozo Natural Resources LLC | Houston, TX 77056 | Oil & Gas Operator | Apr 2024 |
| 1848 | SP Energy Development Company | Seattle, WA 98101-3277 | Oil & Gas Operator | Mar 2015 |
| 1849 | Space Production Inc. | Monahans, TX 79756 | Oil & Gas Operator | Apr 2024 |
| 1850 | Spacht, James W. & Shelly F | Ripley, NY 14775 | Gas Operator | Dec 2022 |
| 1851 | Spade Energy L.L.C. | Wichita Falls, TX 76310 | Gas Operator | Apr 2024 |
| 1852 | Spain Oil Company | Somerset, TX 78069 | Oil & Gas Operator | Apr 2024 |
| 1853 | Spalding Energy, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Apr 2024 |
| 1854 | Spalsbury, Arthur L | Hays, KS 67601 | Oil Operator | Aug 2001 |
| 1855 | Spark'S Energy Inc | Perry, OK 73077-0587 | Oil & Gas Operator | Nov 2014 |
| 1856 | Sparkman Energy, LLC | Fort Worth, TX 76147 | Oil & Gas Operator | Apr 2024 |
| 1857 | Sparkman Rodger E | Jenks, OK 74037-0267 | Oil Operator | Sep 2018 |
| 1858 | Sparks Daniel M | Chickasha, OK 73023-1435 | Oil & Gas Operator | Apr 2014 |
| 1859 | Sparks Greg | Afton, OK 74331-3897 | Oil & Gas Operator | Jan 2024 |
| 1860 | Sparks Harold | Radnor, OH 43066 | Oil & Gas Operator | Dec 1987 |
| 1861 | Sparks Mick Oil Company Inc | Jennings, OK 74038-0250 | Oil & Gas Operator | Feb 2024 |
| 1862 | Sparks Petroleum Company | Oklahoma City, OK 73128 | Oil & Gas Operator | Mar 1998 |
| 1863 | Sparks Resources Inc | Bristow, OK 74010 | Oil & Gas Operator | Jan 2024 |
| 1864 | Sparks, Pearlman E | Mazie, KY 41160 | Oil Operator | Dec 2015 |
| 1865 | Sparks, Sidney A., Trustee | Alice, TX 78332 | Oil & Gas Operator | Jun 1996 |
| 1866 | Sparlin J L | Oklahoma City, OK 73156-1446 | Oil Operator | Jan 2024 |
| 1867 | Sparrow Operating LLC | Comanche, OK 73529-9747 | Oil Operator | Feb 2024 |
| 1868 | Sparta Energy Corp | Oak Brook, IL 60521 | Oil & Gas Operator | Dec 1985 |
| 1869 | Sparta Energy LLC | Edmond, OK 73083-8158 | Oil & Gas Operator | May 2020 |
| 1870 | Sparta Exploration LLC | Houston, TX 77279 | Oil & Gas Operator | Apr 2024 |
| 1871 | Spartan Oil Corporation | Abilene, TX 79601 | Oil & Gas Operator | Aug 2003 |
| 1872 | Spartan Operating Company, Inc. | Tyler, TX 75702 | Oil & Gas Operator | Feb 2013 |
| 1873 | Spartan Petroleum Corporation | Houston, TX 77079 | Oil & Gas Operator | Oct 1987 |
| 1874 | Spartan Resources LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Feb 2024 |
| 1875 | SPC Resources, LLC | Midland, TX 79701 | Oil & Gas Operator | Feb 2024 |
| 1876 | Spear Production Company, Inc. | Shreveport, LA 71161 | Oil Operator | Apr 2024 |
| 1877 | Spearco Oil | Electra, TX 76360 | Oil & Gas Operator | Aug 2003 |
| 1878 | Spearpoint Energy LLC | Seminole, OK 74818-1247 | Oil Operator | Jun 2015 |
| 1879 | Spears Terry | Osage, OK 74054 | Oil Operator | Nov 2023 |
| 1880 | Speartex Grain Company | Gruver, TX 79040 | Oil & Gas Operator | Apr 2024 |
| 1881 | Specht Farms | Piqua, KS 66761 | Oil Operator | Nov 2009 |
| 1882 | Specht Oil | Iola, KS 66749 | Oil Operator | Mar 1998 |
| 1883 | Special Energy Corporation | Stillwater, OK 74076 | Oil & Gas Operator | Apr 2024 |
| 1884 | Special JHR Corp | Bridgeville, PA 15017 | Oil & Gas Operator | Apr 2024 |
| 1885 | Specialized Technological Threading, Inc., | | Oil & Gas Operator | Oct 2019 |
| 1886 | Speco Oil Company | | Oil & Gas Operator | Feb 1980 |
| 1887 | Spectral Oil & Gas Corporation | Humble, TX 77338 | Oil Operator | Apr 2024 |
| 1888 | Spectrum Energy Inc | Scottsdale, AZ 85257 | Oil & Gas Operator | Oct 2003 |
| 1889 | Spectrum Field Services Inc | Tulsa, OK 74136-3400 | Oil & Gas Operator | Jan 2004 |
| 1890 | Spectrum Oil Company | Irving, TX 75063 | Oil & Gas Operator | May 2013 |
| 1891 | Spectrum Oil Corporation | Marietta, OH 45750 | Oil & Gas Operator | Dec 1993 |
| 1892 | Spectrum Resources LLC | Charlotte, NC 28211-4081 | Oil Operator | Oct 2009 |
| 1893 | Speed James F | Ada, OK 74821-1221 | Oil & Gas Operator | Nov 2009 |
| 1894 | Speed, F. Michael, Trustee | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Aug 1998 |
| 1895 | Speedy Well Service | | Oil & Gas Operator | Nov 2023 |
| 1896 | Speegle Oil And Gas Company | Longview, TX 75605 | Oil & Gas Operator | Apr 2024 |
| 1897 | Speer Kenneth G | Seminole, OK 74818-1202 | Oil & Gas Operator | Dec 2001 |
| 1898 | Speir R M Operating Company | Jacksonville, TX 75766-8155 | Oil Operator | Jan 2024 |
| 1899 | Spellbound Energy LLC | Denver, CO 80202 | Oil & Gas Operator | Mar 2024 |
| 1900 | Speller Oil Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Jan 2024 |