This story was originally published on C-Store Dive. To receive daily news and insights, subscribe to our free daily C-Store Dive newsletter. Casey’s General Stores recently highlighted energy drinks as a big part of its 4% same-store sales boost in the retailer’s fiscal third quarter. And the Iowa-based company isn’t the only convenience retailer enjoying the financial benefits of the booming category. With overall sales of $24.8 billion for the year that ended on March 7, energy drinks made up the sec ...