The operating results for oil and gas producing activities for the year ended October 31, 2011 and 2010, respectively, are as follows: 2011 Revenues 1,241,015 657,929 Production costs 183,743 96,267 Depletion and accretion 344,932 220,078 Accumulated depletion expense 989,713 1,200,652 Impairment 137,732 219,539 Net capitalized cost 2,074,900 2,577,519 Results of operations.