	energy development edp had year loss energy development partners ltd said it had an operating loss for the year ended december of mln dlrs or cts per share but it said a mln dlr non cash writeoff of oil and gas properties taken in the first quarter resulted in a net loss of mln dlrs or dlrs per share energy development partners is a limited partnership which began operating in september full year revenues totaled mln dlrs the company also said it said proved reserves at december totaled mln barrels of oil and mln cubic feet of natural gas reuter 
