| | | | | | | | |
| Name | | Jurisdiction of Organization |
| Boland Building, LLC | | Texas |
| Eagleford Gas, LLC | | Texas |
| Eagleford Gas 2, LLC | | Texas |
| Eagleford Gas 3, LLC | | Texas |
| Eagleford Gas 5, LLC | | Texas |
| Eagleford Gas 7, LLC | | Texas |
| Eagleford Gas 8, LLC | | Texas |
| Eagleford Gas 11, LLC | | Texas |
| La Salle Eagle Ford Gathering Line LLC | | Texas |
| ROCC BR Disposal LLC | | Texas |
| ROCC Operating, LLC | | Texas |
| ROCC Resources America LLC | | Delaware |
| ROCC Resources, LLC | | Delaware |
| ROCC Holdings, LLC | | Delaware |
| ROCC Oil & Gas, LLC | | Virginia |
| ROCC Oil & Gas, L.P. | | Texas |
| ROCC Oil & Gas GP LLC | | Delaware |
| ROCC Oil & Gas LP LLC | | Delaware |
| ROCC Intermediate LLC | | Delaware |
| ROCC Energy Holdings GP, LLC | | Delaware |
| ROCC Energy Holdings, L.P. | | Delaware |
| T-N-T Engineering, LLC | | Delaware |