Convenience store sales, both at the pump and inside the store, set new records in 2011, according to NACS. In-store convenience store sales grew 2.4 percent, reaching a record $195 billion. Combined with $486.9 billion in motor fuels sales, total convenience store sales in 2011 were $681.9 billion, or one out of every 22 dollars of the overall $15.04 trillion U.S. gross domestic product.