| 1 | OAKES T.C. ESTATE GAS UNIT | Freestone County, TX | Oil & Gas Property | Jan 2024 |
| 2 | OAKES-TURNER GAS UNIT NO. 1 | Freestone County, TX | Oil & Gas Property | Jan 2024 |
| 3 | ODONNELL | Freestone County, TX | Oil & Gas Property | Jan 2024 |
| 4 | OLAJUWON A | Freestone County, TX | Oil & Gas Property | Jan 2024 |
| 5 | OMA MCMICHAEL GAS UNIT | Freestone County, TX | Oil & Gas Property | Jan 2024 |
| 6 | ORAND | Freestone County, TX | Oil & Gas Property | Jan 2024 |
| 7 | ORAND GAS UNIT NO. 1 | Freestone County, TX | Oil & Gas Property | Jan 2024 |
| 8 | ORANSKY M.B. ET AL | Freestone County, TX | Oil & Gas Property | May 2021 |
| 9 | OSBORN | Freestone County, TX | Oil & Gas Property | Jan 2024 |
| 10 | OWENS C | Freestone County, TX | Oil & Gas Property | Jan 2024 |
| 11 | OWENS GAS UNIT | Freestone County, TX | Oil & Gas Property | Jan 2024 |