| Name of Subsidiary | Jurisdiction of Incorporation | ||||
| Diamondback E&P LLC | Delaware | ||||
| Eclipse Merger Sub II, LLC | Delaware | ||||
| Endeavor Energy Resources, L.P. | Texas | ||||
| QEP Energy Company | Delaware | ||||
| Viper Energy Partners LP | Delaware | ||||
| VNOM Holding Company LLC | Delaware | ||||
| Western Coachwhip LLC | Delaware | ||||