| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Quarles Drilling Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Feb 2008 |
| 2 | Quest Exploration L.L.C. | Oil & Gas Operator | Jul 2014 | |
| 3 | Quinoco Petroleum Inc | Oil & Gas Operator | Dec 1990 | |
| 4 | Quintana Petroleum Corporation | Denver, CO 80265 | Oil & Gas Operator | Mar 1998 |
| 5 | Quintana-H H Cullen-Carl O&G | Oil & Gas Operator | Aug 1984 |