| 1 | G & S Production Company | Velma, OK 73491-0036 | Oil & Gas Operator | Oct 2021 |
| 2 | G & S Production Inc. | Chickasha, OK 73018 | Oil Operator | May 2026 |
| 3 | Gaedeke Oil & Gas Operating, LLC | Dallas, TX 75219 | Oil & Gas Operator | Sep 2023 |
| 4 | Galaxy Oil Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2015 |
| 5 | Garrison Bros Pipe & Used Equip Inc | Hinton, OK 73047 | Oil & Gas Operator | Aug 2013 |
| 6 | Gas Development Corporation | Broken Arrow, OK 74012 | Oil & Gas Operator | Mar 2015 |
| 7 | Gasanadarko LTD | Oklahoma City, OK 73116 | Gas Operator | May 1994 |
| 8 | Ge Oil & Gas LLC | Hastings, OK 73548-4904 | Oil & Gas Operator | Apr 2026 |
| 9 | General Atlantic Resources, Inc. | Denver, CO 80202 | Oil & Gas Operator | Jan 2022 |
| 10 | General Producing Co | Houston, TX 77002 | Oil & Gas Operator | Jun 1993 |
| 11 | Geodyne Operating Company | Tulsa, OK 74103 | Oil & Gas Operator | Jun 2015 |
| 12 | Geodyne Resources Inc | Tulsa, OK 74103 | Oil & Gas Operator | Jul 2010 |
| 13 | Geoex Resources Inc | | Oil & Gas Operator | Jan 1997 |
| 14 | Gilliland Oil And Gas Inc | Hennessey, OK 73742 | Oil & Gas Operator | May 2026 |
| 15 | Glacier Petroleum Co Okla Inc | Edmond, OK 73013-1977 | Oil & Gas Operator | May 2026 |
| 16 | Golden Circle Production Co | Seminole, OK 74868 | Oil & Gas Operator | May 2002 |
| 17 | Golden Gas Production Company | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2026 |
| 18 | Gomaco Operating Company | Tulsa, OK 74115 | Oil & Gas Operator | May 2026 |
| 19 | Gosnell Tony Operating LLC | Lindsay, OK 73052 | Oil & Gas Operator | May 2026 |
| 20 | Gothic Energy Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jul 2015 |
| 21 | Gothic Production Corporation | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2016 |
| 22 | Grace Energy Management Inc | Cement, OK 73017 | Oil Operator | May 2026 |
| 23 | Graham Royalty LTD | Covington, LA 70434 | Oil & Gas Operator | Jul 2007 |
| 24 | Grand Production Company | Oklahoma City, OK 73116 | Oil & Gas Operator | Aug 2000 |
| 25 | Gravley Bill | Duncan, OK 73533 | Oil Operator | Nov 1998 |
| 26 | Great Horned Owls, LLC | Pampa, TX 79065 | Oil & Gas Operator | May 2026 |
| 27 | Greenlee Oil And Gas LLC | Norman, OK 73072 | Oil & Gas Operator | Mar 2026 |
| 28 | Griffin Resources LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2026 |
| 29 | Grizzly Operating, LLC | Houston, TX 77057 | Oil & Gas Operator | Apr 2026 |
| 30 | Gulf Exploration, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Jun 2026 |
| 31 | Gulf Production Corp. | Oklahoma City, OK 73114 | Oil & Gas Operator | Apr 2015 |
| 32 | Gulfport Energy Corporation | Oklahoma City, OK 73114-5003 | Oil & Gas Operator | Mar 2026 |
| 33 | Gulfport Midcon LLC | Oklahoma City, OK 73114-8132 | Oil & Gas Operator | May 2026 |
| 34 | Gypsyglenn Oil Company LLC | Tulsa, OK 74119-4809 | Oil & Gas Operator | May 2026 |