The operating results for oil and gas producing activities for the year ended October 31, 2011 and October 31, 2010 were as follows: Production costs 183,743 96,267 Depletion and acceleration 344,932 220,078 Impairment 137,732 219,539 Net capitalized cost 2,074,900 Production costs 183,743 96,267 Accumulated depletion expense 989,713 1,200,652 Impairment 137,732 219,719 Results of operations.