| 201 | Gulf South Operators, Inc. | New Orleans, LA 70130 | Oil & Gas Operator | Oct 2015 |
| 202 | Gulf South Pipeline Company, LLC | | Oil & Gas Operator | Jan 2025 |
| 203 | Gulf South Pipeline Company, LP | Houston, TX 77001 | Oil & Gas Operator | Dec 2020 |
| 204 | Gulf States Exploration Co. | | Oil & Gas Operator | Dec 1983 |
| 205 | Gulf States Pipeline Corp. | | Oil & Gas Operator | May 2003 |
| 206 | Gulf States Production Company | Houston, TX 77027 | Oil & Gas Operator | Aug 1997 |
| 207 | Gulf Tech Energy LLC | | Oil & Gas Operator | Dec 2002 |
| 208 | Gulfland Resources, Inc. | | Oil & Gas Operator | Aug 1996 |
| 209 | Gulfport Energy Corporation | Oklahoma City, OK 73114-5003 | Oil & Gas Operator | Aug 2025 |
| 210 | Gulfstream Of Louisiana, Inc. | | Oil & Gas Operator | Jan 1996 |
| 211 | Gulfstream Petroleum Corp | | Oil & Gas Operator | Feb 2002 |
| 212 | Gulfstream Resources, Inc. | | Oil & Gas Operator | May 1996 |
| 213 | Guynes And Backus | | Oil Operator | Nov 1999 |
| 214 | Gyb-Britlind Oil, LLC | | Oil & Gas Operator | Jun 2016 |