| | vi. Energy Specific Ratios |
| | 17. Reserves Replacement Ratios | Reserve additions / reserve extractions |
| | 18. Reserve Life Ratio | Total proved reserves beg yr / production |
| | 19. Net to Gross Well Ratio | Net wells / gross wells |
| | 20. Average Reserves per Well Ratio | Total proved reserves beg yr / net wells |
| | 21. Average Daily Production per Well Ratio | Annual production / 365 / net wells |
| | 22. Finding Cost per BOE Ratio | G&G costs + exploratory drilling costs / new BOE added |
| | 23. DD&A per BOE Ratio | Total annual DD&A / total annual BOE production |
| | 24. Value of Proved Reserve Additions per BOE Ratio | Value changes in extensions, discoveries, and improved recovery / Total extinsions discoveries, improved recovery |