| 12201 | Grigsby Petroleum Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Apr 2025 |
| 12202 | Grigsby, Jack W. | Shreveport, LA 71101 | Oil & Gas Operator | Jan 2002 |
| 12203 | Grigsby-McCord Joint Account | | Oil Operator | Apr 1984 |
| 12204 | Grigsby-McCord Joint Acct Etal | | Oil Operator | Apr 1984 |
| 12205 | Grim Paul A | Logan, OH 43138-9445-9445 | Oil & Gas Operator | Dec 2020 |
| 12206 | Grimes Energy Company | Abilene, TX 79604 | Oil & Gas Operator | Mar 2005 |
| 12207 | Grimes, Norman W. | Canyon, TX 79015 | Oil & Gas Operator | Jul 2014 |
| 12208 | Grimm Assn. | | Oil & Gas Operator | Jul 2021 |
| 12209 | Grimsby Exploration Inc | Canton, OH 44709 | Oil & Gas Operator | Dec 2018 |
| 12210 | Grissom, Charles A. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2001 |
| 12211 | Griswold Energy LLC | Oologah, OK 74053-6228 | Oil Operator | Jan 2025 |
| 12212 | Grit Oil & Gas Management, LLC | Houston, TX 77055 | Oil & Gas Operator | Apr 2025 |
| 12213 | Grit Oil & Gas, LLC | Houston, TX 77072 | Oil & Gas Operator | Apr 2019 |
| 12214 | Grit Operating, L.L.C. | Shreveport, LA 71101 | Oil & Gas Operator | Nov 2023 |
| 12215 | Grizzle, Joe B. | Paris, TX 75461 | Oil & Gas Operator | Apr 2025 |
| 12216 | Grizzly Op Of Delaware, LLC | Houston, TX 77057 | Oil & Gas Operator | Mar 2021 |
| 12217 | Grizzly Operating LLC | Houston, TX 77057 | Oil & Gas Operator | Jan 2025 |
| 12218 | GRM LLC | | Oil & Gas Operator | Jun 2021 |
| 12219 | GRMR Oil And Gas LLC | Broomfield, CO 80021 | Oil & Gas Operator | Feb 2025 |
| 12220 | Gro-Tex Exploration | Abilene, TX 79603 | Oil Operator | Apr 2025 |
| 12221 | Grogan Field Production, L.L.C. | | Oil Operator | Jan 2025 |
| 12222 | Grooms T D | Stillwater, OK 74075-3600 | Oil & Gas Operator | Oct 2001 |
| 12223 | Grose, Raymond | Buckhannon, WV 26201-0736 | Oil & Gas Operator | Dec 2003 |
| 12224 | Gross Jack L Production | Borger, TX 79008-0065 | Gas Operator | Mar 2015 |
| 12225 | Gross Todd | Pine Bluffs, WY 82082 | Oil & Gas Operator | Mar 2007 |
| 12226 | Gross William R | | Oil Operator | Feb 1986 |
| 12227 | Gross, Charles E. | Dallas, TX 75220 | Oil & Gas Operator | Feb 2012 |
| 12228 | Gross, L. Jack Production | Borger, TX 79008 | Oil & Gas Operator | Dec 1994 |
| 12229 | Grothe Bros. | Albany, TX 76430 | Oil & Gas Operator | May 2011 |
| 12230 | Grothe Bros., Inc. | Slaton, TX 79364 | Oil & Gas Operator | Apr 2025 |
| 12231 | Grothe, M. L. Oil Co. | Albany, TX 76430 | Oil & Gas Operator | Jun 2010 |
| 12232 | Grothe, M.L. Est. | Slaton, TX 79364 | Oil & Gas Operator | Apr 2025 |
| 12233 | Grothues, G B Oil | Natalia, TX 78059 | Oil Operator | Apr 2025 |
| 12234 | Ground Development Company Inc | Dallas, TX 75229-0377 | Oil & Gas Operator | Jan 2013 |
| 12235 | Ground Resources, LLC | | Oil & Gas Operator | Dec 2021 |
| 12236 | Group Maintenance Corp | Jefferson, OH 44047 | Oil & Gas Operator | Dec 2012 |
| 12237 | Grover Collins | | Oil & Gas Operator | Dec 2002 |
| 12238 | Grover-McKinney Oil Company | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 12239 | Groves, Frank | Arkansas City, KS 67005 | Oil & Gas Operator | Mar 1995 |
| 12240 | Growers Co-Operative Grape Juice Company, Inc | | Gas Operator | Dec 2018 |
| 12241 | GRR Mammoser Partnership | Eden, NY 14057 | Gas Operator | Dec 2023 |
| 12242 | GRS Oil & Gas Company | Irving, TX 75017 | Oil & Gas Operator | Aug 1994 |
| 12243 | Grubb F W "Forest" | Garber, OK 73738-0186 | Oil & Gas Operator | Jun 2005 |
| 12244 | Grubb Ronald J | Clinton, OK 73601-0906 | Oil & Gas Operator | Aug 2013 |
| 12245 | Gruenerwald WM & | | Oil & Gas Operator | Apr 1994 |
| 12246 | Gruenerwald WM & Assoc Inc | Colorado Spring, CO 80960-0669 | Oil & Gas Operator | Jan 2002 |
| 12247 | Grunder Oil, LLC | St John, KS 67576 | Oil Operator | Dec 2024 |
| 12248 | Gruss Petroleum | | Oil Operator | Jan 1986 |
| 12249 | Gruy Management Service Co. | | Oil & Gas Operator | Apr 1982 |
| 12250 | Gruy Petroleum Management Co. | Irving, TX 75014 | Oil & Gas Operator | Nov 2014 |
| 12251 | Grynberg Petroleum Company | Greenwood Vge, CO 80111-3326 | Oil & Gas Operator | Oct 2019 |
| 12252 | Grynberg* Jack Dba Grynberg Petroleum Co | | Oil & Gas Operator | Jan 2023 |
| 12253 | Grynberg, Jack J. | Denver, CO 80237 | Oil & Gas Operator | Jun 2021 |
| 12254 | Gryphon Exploration Company | Mandeville, LA 70471 | Oil & Gas Operator | Aug 2009 |
| 12255 | GS Energy Of Texas, L.L.C. | Oklahoma City, OK 73102 | Oil & Gas Operator | May 2006 |
| 12256 | GSF Energy, L.L.C. | Pittsburgh, PA 15220 | Gas Operator | Mar 2018 |
| 12257 | Gsi Oil & Gas, Inc. | Bryan, TX 77806 | Oil & Gas Operator | Apr 2025 |
| 12258 | GT Energy | | Oil & Gas Operator | Mar 1993 |
| 12259 | GT Productions | Euless, TX 76040 | Oil & Gas Operator | Jan 1997 |
| 12260 | GTG Operating, LLC | Tyler, TX 75702 | Oil & Gas Operator | Apr 2025 |
| 12261 | Guadalupe Operating LLP | Midland, TX 79701 | Oil & Gas Operator | Oct 2013 |
| 12262 | Guadalupe Properties, LLC | New Braunfels, TX 78132 | Oil & Gas Operator | Mar 2013 |
| 12263 | Guaranty Energy Corporation | | Oil & Gas Operator | Aug 1990 |
| 12264 | Guardian Energy Consultants, Inc. | Tulsa, OK 74120 | Gas Operator | Sep 2009 |
| 12265 | Guardian Exploration LLC | Hunt, TX 78024-0225 | Oil & Gas Operator | Dec 2011 |
| 12266 | Guardian Management Inc | Marion, OH 43302 | Oil & Gas Operator | Dec 1997 |
| 12267 | Guardian Oil Company | | Oil & Gas Operator | Aug 1985 |
| 12268 | Guardian Operating Corp. | Midland, TX 79707 | Oil & Gas Operator | Nov 2016 |
| 12269 | Guenthart William & Lavonne | Newcastle, WY 82701 | Oil Operator | Dec 2024 |
| 12270 | Guernsey Petroleum Corp Of MS | | Oil Operator | Jul 1988 |
| 12271 | Guernsey Petroleum Corporation | Atlanta, GA 30318 | Oil & Gas Operator | Nov 1997 |
| 12272 | Guernsey/Rosbottom | | Oil Operator | Apr 1989 |
| 12273 | Guest Petroleum Incorporated | Edmond, OK 73013 | Oil & Gas Operator | Feb 2025 |
| 12274 | Guest R E Oil Producer | Edmond, OK 73083-0805 | Oil & Gas Operator | Mar 2015 |
| 12275 | Guffey & Galey | | Oil & Gas Operator | Aug 1981 |
| 12276 | Guffey, Roy, Oil Company | Dallas, TX 75206 | Oil & Gas Operator | Aug 2011 |
| 12277 | Guffey, WM. R. | Dallas, TX 75206 | Oil & Gas Operator | Sep 2015 |
| 12278 | Gugli Corporation | Byng, OK 74820 | Oil & Gas Operator | Sep 2014 |
| 12279 | Guidance Oil Developers | Boerne, TX 78006 | Oil & Gas Operator | Apr 2025 |
| 12280 | Guidance Oil Developers, Inc. | Abilene, TX 79601 | Oil & Gas Operator | Mar 2008 |
| 12281 | Guidance Oil Developers,Inc.(1) | Boerne, TX 78006 | Oil Operator | Apr 2025 |
| 12282 | Guido & Arnold | | Oil & Gas Operator | Feb 1982 |
| 12283 | Guido Energy Co & Guernsey Pet | | Oil Operator | Aug 1991 |
| 12284 | Guido Production Co Inc | | Oil Operator | May 1995 |
| 12285 | Guidon Energy MGMT Services LLC | Irving, TX 75062 | Oil & Gas Operator | Dec 2020 |
| 12286 | Guidry, J.R. | High Island, TX 77623 | Oil Operator | Apr 2025 |
| 12287 | Guin, Don L. | Flint, TX 75762 | Oil & Gas Operator | Apr 2018 |
| 12288 | Guinn David E | Cleveland, OK 74020 | Oil & Gas Operator | Jan 2025 |
| 12289 | Guinn Investments, Inc. | Graham, TX 76450 | Oil & Gas Operator | Oct 2018 |
| 12290 | Guinn Oil Company | Lockhart, TX 78644 | Oil & Gas Operator | Sep 2024 |
| 12291 | Guinn Operating Company | Spring Branch, TX 78070 | Oil & Gas Operator | Feb 2014 |
| 12292 | Guinn Operating Company, LLC | San Antonio, TX 78260 | Oil Operator | Apr 2025 |
| 12293 | Guinotte Company LLC | Ottawa, KS 66067 | Oil Operator | Dec 2009 |
| 12294 | Gulf Bend Resources, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Sep 2016 |
| 12295 | Gulf Central Petroleum Corp. | Dallas, TX 75252 | Oil & Gas Operator | Apr 2025 |
| 12296 | Gulf Coast Crude O&G Co., Inc. | | Oil & Gas Operator | May 1982 |
| 12297 | Gulf Coast Energy, Co. | Alvin, TX 77511 | Oil & Gas Operator | Apr 2021 |
| 12298 | Gulf Coast Fuel Resources LLC | The Woodlands, TX 77380 | Oil Operator | Jan 2022 |
| 12299 | Gulf Coast Mineral, LLC | Foley, AL 36535 | Oil & Gas Operator | Jul 2021 |
| 12300 | Gulf Coast Operations, LLC | Farmers BRNCH, TX 75234 | Oil & Gas Operator | Apr 2025 |