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