| 1 | G & N Oil & Gas LLC | Asher, OK 74826 | Oil & Gas Operator | Mar 2025 |
| 2 | G & S Production Company | Velma, OK 73491-0036 | Oil & Gas Operator | Oct 2021 |
| 3 | G E Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | May 2020 |
| 4 | Gadsco Inc | Ardmore, OK 73402 | Gas Operator | Jun 2013 |
| 5 | Gay Drilling Contractors | Duncan, OK 73534-0457 | Oil & Gas Operator | Dec 2014 |
| 6 | George Taylor & Sons Oil LLC | Ringling, OK 73456 | Oil Operator | Jun 2025 |
| 7 | Gibson H F Estate | Dallas, TX 75250 | Oil & Gas Operator | Jul 1995 |
| 8 | Gilby Services LLC | Velma, OK 73491 | Oil & Gas Operator | Jun 2025 |
| 9 | Gill Jet C Dba Jetco Inc | Okmulgee, OK 74447 | Oil & Gas Operator | Dec 2023 |
| 10 | Gilliland Oil And Gas Inc | Hennessey, OK 73742 | Oil & Gas Operator | Jul 2025 |
| 11 | Gladiator Operating LLC | Ardmore, OK 73401 | Oil & Gas Operator | Jul 2025 |
| 12 | GLB Exploration, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Jul 2025 |
| 13 | Goggans William C | Pauls Valley, OK 73075-9759 | Oil & Gas Operator | Jun 2004 |
| 14 | Good Vaughn | Enid, OK 73702 | Oil & Gas Operator | Jul 2008 |
| 15 | Gopher Oil Company | | Oil & Gas Operator | Mar 2025 |
| 16 | Gothic Energy Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jul 2015 |
| 17 | Gothic Production Corporation | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2016 |
| 18 | Gouin Frank L | Oklahoma City, OK 73139-2513 | Oil Operator | Jan 2014 |
| 19 | Graham Royalty LTD | Covington, LA 70434 | Oil & Gas Operator | Jul 2007 |
| 20 | Grand Production Company | Oklahoma City, OK 73116 | Oil & Gas Operator | Aug 2000 |
| 21 | Granite Oil & Gas Inc | Phoenix, AZ 85045 | Oil Operator | Mar 1996 |
| 22 | Gray Operating Company, Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Apr 2018 |
| 23 | Grayhorse Operating Inc | Tulsa, OK 74103-4439 | Oil & Gas Operator | Jun 2025 |
| 24 | Great Southwestern Expl Inc | Tulsa, OK 74105 | Oil & Gas Operator | Jun 2025 |
| 25 | Greehey & Company, LTD. | San Antonio, TX 78216 | Oil & Gas Operator | May 2020 |
| 26 | Gugli Corporation | Byng, OK 74820 | Oil & Gas Operator | Sep 2014 |
| 27 | Gulf Exploration, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Sep 2025 |
| 28 | Gulfport Midcon LLC | Oklahoma City, OK 73114-8132 | Oil & Gas Operator | Jul 2025 |
| 29 | Gunter Jim | Springer, OK 73458 | Oil Operator | May 2025 |
| 30 | Gypsyglenn Oil Company LLC | Tulsa, OK 74119-4809 | Oil & Gas Operator | Jul 2025 |