nrg energy inc posted a big drop in thirdquarter profit as the company lapped a quarter in which it benefited from gains in hedge positions the energy company reported a profit of 67 million for the three months down from 162 billion a year earlier earnings were 29 cents a share down from 660 a share last year the company said the drop in profit was due to marktomarket gains on hedge positions in the yearearlier period which benefited nrg due to large movements in natural gas and power prices a year ago write to will feuer at willfeuerwsjcom