Total operating expenses in the first quarter were $8.6 billion, a decrease of 7.1 percent compared to the first quarter 2014 due primarily to a 42.2 percent decrease in consolidated fuel expense. First quarter mainline cost per available seat mile (CASM) was 12.80 cents, down 5.2 percent on a 1.7 percent decrease in mainline ASMs versus the first quarter 2014. Excluding special charges and fuel, mainline CASM was 9.49 cents, up 5.8 percent compared to the first quarter 2014. Regional CASM excluding special charges and fuel was 16.47 cents, down 0.9 percent on a 5.7 percent increase in regional ASMs versus the first quarter 2014.