epletion in Excess of Cost Depletion to the Extent of Basis (Working Interest) 20T5 Oil & Gas - Percentage Depletion in Excess of Cost Depletion to the Extent of Basis (Royalty) 2076 Oil & Gas - Percentage Depletion in Excess of Basis (Working Interest) 20T7 Oil & Gas - Net Equivalent BBLs of Production (in MBBL) 20V1