| 1 | G & S Production Company | Velma, OK 73491-0036 | Oil & Gas Operator | Oct 2021 |
| 2 | G E Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | May 2020 |
| 3 | Gadsco Inc | Ardmore, OK 73402 | Gas Operator | Jun 2013 |
| 4 | Gay Drilling Contractors | Duncan, OK 73534-0457 | Oil & Gas Operator | Dec 2014 |
| 5 | Geo Engineering Inc | Houston, TX 77027 | Oil & Gas Operator | Jun 2009 |
| 6 | George Taylor & Sons Oil LLC | | Oil Operator | Jan 2024 |
| 7 | Gibson H F Estate | Dallas, TX 75250 | Oil & Gas Operator | Jul 1995 |
| 8 | Gilby Services LLC | | Oil & Gas Operator | Feb 2024 |
| 9 | Gill Jet C Dba Jetco Inc | Okmulgee, OK 74447-0697 | Oil & Gas Operator | Dec 2023 |
| 10 | Gladiator Operating LLC | | Oil & Gas Operator | Feb 2024 |
| 11 | GLB Exploration, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Feb 2024 |
| 12 | Goggans William C | Pauls Valley, OK 73075-9759 | Oil & Gas Operator | Jun 2004 |
| 13 | Good Vaughn | Enid, OK 73702 | Oil & Gas Operator | Jul 2008 |
| 14 | Gopher Oil Company | | Oil & Gas Operator | Dec 2023 |
| 15 | Gothic Energy Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jul 2015 |
| 16 | Gothic Production Corporation | Oklahoma City, OK 73154 | Oil & Gas Operator | Dec 2016 |
| 17 | Gouin Frank L | Oklahoma City, OK 73139-2513 | Oil Operator | Jan 2014 |
| 18 | Graham Royalty LTD | Covington, LA 70434 | Oil & Gas Operator | Jul 2007 |
| 19 | Grand Production Company | Oklahoma City, OK 73116 | Oil & Gas Operator | Aug 2000 |
| 20 | Granite Oil & Gas Inc | Phoenix, AZ 85045 | Oil Operator | Mar 1996 |
| 21 | Gray Operating Company, Inc. | Ardmore, OK 73402 | Oil & Gas Operator | Apr 2018 |
| 22 | Grayhorse Operating Inc | Tulsa, OK 74103-4439 | Oil & Gas Operator | Jan 2024 |
| 23 | Great Southwestern Expl Inc | Tulsa, OK 74105 | Oil & Gas Operator | Jan 2024 |
| 24 | Greehey And Company LTD | San Antonio, TX 78216 | Oil & Gas Operator | May 2020 |
| 25 | Green Valley Disposal Serv LLC | Waynoka, OK 73860-0194 | Oil Operator | Feb 2024 |
| 26 | Gugli Corporation | Ada, OK 74821-1527 | Oil & Gas Operator | Sep 2014 |
| 27 | Gunter Jim | Springer, OK 73458-8202 | Oil Operator | Feb 2024 |
| 28 | Gypsyglenn Oil Company LLC | | Oil & Gas Operator | Mar 2024 |