39)clark oil and gas incurred costs of $20.50 million for the rights to extract resources from a natural gas deposit. the company expects to extract 8.20 million cubic feet of natural gas during a six-year period. natural gas extracted during years 1 and 2 were 820,000 and 1,620,000 cubic feet, respectively. what was total depletion for year 1 and year 2, assuming the company uses the units-of-production method?
