date:Feb 21, 2014
lackhawk and increased shrink expense, partly offset by reduced advertising expense and increased LIFO income.
Operating and administrative expense increased 24 basis points to 24.51% in 2013 from 24.27% in 2012. Excluding the 33 basis-point increase from fuel sales, operating and administrative expense decreased nine basis points primarily because of reduced self-insurance expense, the reduction in the fair value of contingent consideration related to the Blackhawk acquisition of Cardpool and