"The decrease was primarily due to decreased personnel costs per unit of production. Taxes other than income taxes were $0.10 per Mcfe in 2012, down from $0.11 per Mcfe in 2011. The company's full cost pool amortization rate increased to $1.31 per Mcfe in 2012, compared to $1.30 per Mcfe in 2011. Midstream Services ??? Operating inco" . . . .