| 27901 | Spectrum Opco LLC | | Oil & Gas Operator | Nov 2024 |
| 27902 | Speed James F | Ada, OK 74821-1221 | Oil & Gas Operator | Nov 2009 |
| 27903 | Speed, F. Michael, Trustee | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Aug 1998 |
| 27904 | Speedy Well Service | | Oil & Gas Operator | Jun 2025 |
| 27905 | Speegle Oil And Gas Company | Longview, TX 75605 | Oil & Gas Operator | Dec 2025 |
| 27906 | Speer Kenneth G | Seminole, OK 74818-1202 | Oil & Gas Operator | Dec 2001 |
| 27907 | Speir R M Operating Company | Walters, OK 73572-3933 | Oil Operator | Sep 2025 |
| 27908 | Spellbound Energy LLC | Denver, CO 80202 | Oil & Gas Operator | Oct 2025 |
| 27909 | Speller Oil Corporation | Oklahoma City, OK 73112 | Oil & Gas Operator | Oct 2025 |
| 27910 | Spence Energy Company | Dallas, TX 75360 | Oil & Gas Operator | Dec 2025 |
| 27911 | Spence, Ralph Oil Company, Inc. | Tyler, TX 75701 | Oil & Gas Operator | Jun 2023 |
| 27912 | Spencer Enterprises Dba Hugh Spencer | Smithburg, WV 26436-0000 | Oil & Gas Operator | Dec 2021 |
| 27913 | Spencer Oil Company | Borger, TX 79007 | Oil & Gas Operator | Aug 2025 |
| 27914 | Spencer Oil Company LLC | Bartlesville, OK 74006 | Oil Operator | Jan 2015 |
| 27915 | Spencer Petroleum Corp | Akron, OH 44319 | Oil & Gas Operator | Dec 2000 |
| 27916 | Spencer Resources Inc | Richmond, VA 23225 | Oil & Gas Operator | Dec 1993 |
| 27917 | Spencer-Cloughly Investments Inc | San Marcos, TX 78666 | Oil & Gas Operator | Aug 2002 |
| 27918 | Spenergy Corp. | Midland, TX 79701 | Oil & Gas Operator | Dec 1999 |
| 27919 | Sperry R J | Dallas, TX 75254-8647 | Oil & Gas Operator | Aug 2013 |
| 27920 | Spess Oil Company Inc | Cleveland, OK 74020-4617 | Oil & Gas Operator | Oct 2025 |
| 27921 | Spess Oil Company, A General Partnership | Cleveland, OK 74020 | Oil & Gas Operator | Jun 2025 |
| 27922 | SPH Development, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Nov 2022 |
| 27923 | Spheric Petroleum Inc. | Baltimore, MD 21208 | Oil & Gas Operator | Nov 2006 |
| 27924 | Spi Operations LLC | Midland, TX 79710 | Oil & Gas Operator | Jan 2013 |
| 27925 | Spicer Oil Company, Inc. | Dallas, TX 75225 | Oil & Gas Operator | Dec 2008 |
| 27926 | Spicewood Operating Company, LLC | Austin, TX 78746 | Oil & Gas Operator | Dec 2025 |
| 27927 | Spicknall Enterprises | Amarillo, TX 79124 | Oil & Gas Operator | May 1998 |
| 27928 | Spicy Daugx Operators Louisiana LLC | | Oil & Gas Operator | Nov 2024 |
| 27929 | Spike, David C. And Arlene M. | Bloomfield, NY 14469 | Gas Operator | Dec 2024 |
| 27930 | Spikes Gas & Oil | | Gas Operator | Mar 1994 |
| 27931 | Spikes, Gary E. | Garden City, KS 67846 | Gas Operator | Mar 2013 |
| 27932 | Spikes, Harry | Henrietta, TX 76365 | Oil & Gas Operator | Sep 2000 |
| 27933 | Spiller Oil & Gas Company | Jacksboro, TX 76458 | Oil Operator | Dec 2025 |
| 27934 | Spiller Operating Co., Inc. | Round Rock, TX 78665 | Oil & Gas Operator | May 2015 |
| 27935 | Spiller, H. G. | San Antonio, TX 78213 | Oil & Gas Operator | Oct 1993 |
| 27936 | Spiller, J. A. Company | Austin, TX 78735 | Oil & Gas Operator | Jan 2016 |
| 27937 | Spiller, J.A. | Austin, TX 78735 | Oil & Gas Operator | Jan 2016 |
| 27938 | Spiller, Joseph A. | Austin, TX 78746 | Oil & Gas Operator | Oct 1993 |
| 27939 | Spiller, Robert S. | San Antonio, TX 78213 | Oil & Gas Operator | Oct 1995 |
| 27940 | Spillers Petroleum, Inc. | | Gas Operator | Mar 2010 |
| 27941 | Spindletop Drilling Co. | Dallas, TX 75230 | Oil & Gas Operator | Dec 2025 |
| 27942 | Spindletop Oil & | | Oil Operator | Jun 1993 |
| 27943 | Spindletop Oil & Gas Co. | Dallas, TX 75230 | Oil & Gas Operator | Dec 2025 |
| 27944 | Spines Explorati | | Oil & Gas Operator | Dec 1990 |
| 27945 | Spinnaker Exploration Co.,L.L.C. | Houston, TX 77002 | Oil & Gas Operator | Nov 2005 |
| 27946 | Spiral Energy Corp. | Midland, TX 79705 | Oil & Gas Operator | Dec 2019 |
| 27947 | Spire Asset Management LLC | Lafayette, CO 80026 | Oil & Gas Operator | Oct 2025 |
| 27948 | Spire Missouri Inc. | | Oil Operator | May 2022 |
| 27949 | Spire Oil Services LLC | | Oil & Gas Operator | Nov 2020 |
| 27950 | Spirit Energy Inc | Edmond, OK 73034 | Oil & Gas Operator | Apr 1999 |
| 27951 | Spirit Energy L.L.C. | Caddo Mills, TX 75135 | Oil & Gas Operator | Dec 2018 |
| 27952 | Spirit O&G Operating, LLC | Houston, TX 77010 | Oil & Gas Operator | Dec 2025 |
| 27953 | Spirit Petroleum Company | | Oil & Gas Operator | Apr 1999 |
| 27954 | Spitfire Energy Group LLC | Oklahoma City, OK 73114-7444 | Oil Operator | Apr 2023 |
| 27955 | Spitfire Partners, LLC | Dallas, TX 75225 | Oil Operator | Dec 2025 |
| 27956 | Spivey, R. L. | Olney, TX 76374 | Oil Operator | Jul 2005 |
| 27957 | Spivey, William | Hays, KS 67601 | Oil Operator | Jun 1993 |
| 27958 | Splawn & Splawn | Saint Louis, OK 74866-0098 | Oil & Gas Operator | Mar 2025 |
| 27959 | Splechter, Tim | Yates Center, KS 66783 | Oil Operator | Jun 2025 |
| 27960 | SPN Energy, LLC | Guston, KY 40142 | Gas Operator | Dec 2023 |
| 27961 | Spokane Operating, LLC | | Oil & Gas Operator | Dec 2024 |
| 27962 | Sponte Operating, Inc. | Dallas, TX 75313 | Oil & Gas Operator | Dec 2025 |
| 27963 | Spoonemore Brothers | Spearman, TX 79081 | Oil & Gas Operator | Nov 2019 |
| 27964 | Spooner & Marlin Expl., Inc. | | Oil & Gas Operator | Mar 1990 |
| 27965 | Spooner Petroleum Company | | Oil & Gas Operator | Oct 2025 |
| 27966 | Sportsman Oil, Inc. | Dallas, TX 75379 | Oil & Gas Operator | Nov 1998 |
| 27967 | Spotted Hawk Development, LLC | | Oil & Gas Operator | Nov 2025 |
| 27968 | Spradco, Inc. | Towanda, KS 67144 | Oil Operator | Jun 2025 |
| 27969 | Spragins Ed S | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 2025 |
| 27970 | Spragins, Ed | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2025 |
| 27971 | Sprague, Gary L. | Versailles, NY 14168 | Gas Operator | Dec 2024 |
| 27972 | Spri Oil & Gas, LLC | Houston, TX 77090 | Oil & Gas Operator | Mar 2020 |
| 27973 | Spring Creek Farm And Oil, LLC | Bixby, OK 74008 | Oil Operator | Jun 2025 |
| 27974 | Spring Industries Inc | Wellington, FL 33414 | Oil & Gas Operator | Dec 2016 |
| 27975 | Spring Operating Company | Edmond, OK 73034 | Oil & Gas Operator | Oct 2025 |
| 27976 | Spring Resources, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Jul 2007 |
| 27977 | Spring Tide Petroleum Inc | Broken Arrow, OK 74011-6651 | Oil & Gas Operator | Oct 2025 |
| 27978 | Spring Tree Management LC | Abilene, TX 79604 | Oil Operator | May 2013 |
| 27979 | Spring Valley Development Co LLC | Centennial, CO 80014 | Oil & Gas Operator | Oct 2025 |
| 27980 | Spring Valley Oil & Gas Inc | Drummond, OK 73735 | Oil & Gas Operator | Oct 2025 |
| 27981 | Spring, Harry A. | Ardmore, OK 73401 | Oil Operator | Jul 2012 |
| 27982 | Springer Benjami | | Gas Operator | Aug 1990 |
| 27983 | Springer Energy Company, LLC | Akron, OH 44313 | Oil & Gas Operator | Dec 2024 |
| 27984 | Springer, Lee A. | Independence, KS 67301 | Oil Operator | May 2014 |
| 27985 | Springfield Oil Services, Inc. | Mamaroneck, NY 10543 | Oil & Gas Operator | Dec 2025 |
| 27986 | Springs, Jesse | Luling, TX 78648 | Oil & Gas Operator | Jun 1998 |
| 27987 | Springville-Griffith Institute Central School Dist | Springville, NY 14141 | Gas Operator | Dec 2024 |
| 27988 | Sproul, C. R. Inc. | Eldorado, TX 76936 | Oil & Gas Operator | Aug 2000 |
| 27989 | Spruiell Drilling Co., Inc. | Holliday, TX 76366 | Oil & Gas Operator | Dec 2025 |
| 27990 | SPS, Inc. | Cheney, KS 67025 | Oil & Gas Operator | Jun 2025 |
| 27991 | Spur Energy | Midland, TX 79708 | Oil & Gas Operator | Mar 1996 |
| 27992 | Spur Energy Partners LLC | Houston, TX 77024 | Oil & Gas Operator | Oct 2025 |
| 27993 | Spur Operating Co. | Austin, TX 78701 | Oil & Gas Operator | Dec 2025 |
| 27994 | Spurgeon William Allan | Nowata, OK 74048-9713 | Oil Operator | Feb 2010 |
| 27995 | Spurgeon William C & Tammy D | Hominy, OK 74035 | Oil & Gas Operator | Aug 2025 |
| 27996 | Spyglass Cedar Creek, LP | | Gas Operator | Jul 2012 |
| 27997 | Spyglass Oil & Gas LLC | | Oil & Gas Operator | Dec 2024 |
| 27998 | Square Mile Energy, L.L.C. | Houston, TX 77057 | Oil & Gas Operator | Dec 2025 |
| 27999 | Square One Corporation | Giddings, TX 78942 | Oil & Gas Operator | Dec 2012 |
| 28000 | Square One Energy, Inc. | Tulsa, OK 74159 | Oil & Gas Operator | Oct 2015 |