Calculate the After-Tax Cash Flow, NPV (at minimum ROR=12%) and ROR for the following investment with 6 years life time: The investor is a Non-integrated petroleum company Total producible oil in the reserve is estimated to be 2,400,000 barrel Production rate will be 400,000 barrel of oil per year from year 1 to year 6 Mineral rights acquisition cost for property would be $1,200,000 at time zero Intangible drilling cost (IDC) is expected to be $6,500,000 at time zero Tangible equipment cost is $3,000,000 at time zero Working capital of $1,500,000 also at time zero Equipment depreciation will be based on MACRS 5-years life depreciation starting from year 1 to year 6 (consider rates exactly similar to the table A-1 for 5-years half-year convention) The production selling price is assumed $50 per barrel which has 10% escalation each year applicable from year 2 Operating cost is $2,000,000 annually with escalation rate of 12% starting from year 2 Income tax is 40% Royalty 15%