Basis of the Manual
Discounted Cash Flow Appraisal
Discount Rate Components
Using the Three Techniques
Developing a Discount Rate From Sales
Weighted Average Cost of Capital
Appendix 1: Discounted Cash Flow Method (Working Interest Portion Only)
Appendix 2: Estimation of Weighted Average Cost of Capital (WACC)
Appendix 3: Standard Deviation
Appendix 4: Property Specific Risk Factors
This manual describes methods and procedures used to calculate the present value of oil and gas properties using discounted future income. The discounted cash flow method, DCF, is the most widely used method to appraise mineral properties.
Within the DCF equation, there are three generally accepted techniques for estimating a discount rate: market surveys, oil and gas sales analysis and the weighted average cost of capital. Ideally, the appraiser should use these three techniques simultaneously to develop a range of discount rates.
The evaluation of oil and gas properties demonstrates the importance of viewing a discount rate in the context of the entire appraisal, including the production decline rate, price and cost parameters. The discount rate should not be considered an isolated variable, for it is only one component of a complex interaction of variables that collectively determine an estimate of value.