| | | | |
Subsidiary | | Jurisdiction of Formation |
| 1. | | Alabama Energy Resources LLC | | Texas |
| 2. | | Alta Mesa Acquisition Sub, LLC | | Texas |
| 3. | | Alta Mesa Drilling, LLC | | Texas |
| 4. | | Alta Mesa Eagle, LLC | | Texas |
| 5. | | Alta Mesa Energy LLC | | Texas |
| 6. | | Alta Mesa Finance Services Corp. | | Delaware |
| 7. | | Alta Mesa GP, LLC | | Texas |
| 8. | | Alta Mesa Services, LP | | Texas |
| 9. | | AM Idaho LLC | | Texas |
| 10. | | Aransas Resources, L.P. | | Texas |
| 11. | | ARI Development, LLC | | Delaware |
| 12. | | Brayton Management GP II, LLC | | Texas |
| 13. | | Brayton Management GP, LLC | | Texas |
| 14. | | Brayton Resources II, L.P. | | Texas |
| 15. | | Brayton Resources, L.P. | | Texas |
| 16. | | Buckeye Production Company, LP | | Texas |
| 17. | | Cairn Energy USA, LLC | | Delaware |
| 18. | | FBB Anadarko, LLC | | Delaware |
| 19. | | Galveston Bay Resources, LP | | Texas |
| 20. | | LEADS Resources, L.L.C. | | Texas |
| 21. | | Louisiana Exploration & Acquisition Partnership, LLC | | Delaware |
| 22. | | Louisiana Exploration & Acquisitions, LP | | Texas |
| 23. | | Louisiana Onshore Properties LLC | | Delaware |
| 24. | | Navasota Resources, Ltd., LLP | | Texas |
| 25. | | New Exploration Technologies Company, L.L.C. | | Texas |
| 26. | | Nueces Resources, LP | | Texas |
| 27. | | Oklahoma Energy Acquisitions, LP | | Texas |
| 28. | | Orion Operating Company, LP | | Texas |
| 29. | | Petro Acquisitions, LP | | Texas |
| 30. | | Petro Operating Company, LP | | Texas |
| 31. | | Sundance Acquisition, LLC | | Texas |
| 32. | | TE TMR, LLC | | Texas |
| 33. | | Texas Energy Acquisitions, LP | | Texas |
| 34. | | The Meridian Production, LLC | | Texas |
| 35. | | The Meridian Resource & Exploration LLC | | Delaware |
| 36. | | The Meridian Resource, LLC | | Delaware |
| 37. | | TMR Drilling, LLC | | Texas |
| 38. | | TMR Equipment, LLC | | Texas |
| 39. | | Virginia Oil and Gas, LLC | | Delaware |
