4-23. An oil and gas producing company owns 45,000 acres of land in a southeastern state. It operates 650 wells which produce 21,000 barrels of oil per year and 1.5 million cubic feet of natural gas per year. The revenue from the oil is $2,100,000 per year and for natural gas the annual revenue is $584,000 per year. If a potential buyer of this property is hoping to make 15% per year on his investment, what is the bid that should be made to purchase this property if the study period is 10 years? (4.7.2)