The National Association of Convenience Stores said that as competition for customers intensified, store operators were looking to add products and services - such as motor fuels - to their offers.
NACS noted that this competition saw some operators examine the profitability of their stores, which led to closures and the store count decline.
Some 81.3% of all c-stores now sell motor fuels. While every region across the US saw growth in the number of stores selling motor fuels, it was led by a 15.3% increase in New York, New Jersey and Pennsylvania.
NACS said that the state of Texas accounts for nearly one in 10 of all US c-stores.