Just days ahead of the Fourth of July holiday, convenience store chain Sheetz announced it will lower gas prices at its North Carolina pumps to ease the cost of travel this holiday weekend. On Monday, the Pennsylvania-based company said it would immediately lower the price of fuel to $3.99 a gallon for Unleaded 88 and $3.49 a gallon for E85. The limited-time price will be available through the Fourth of July, the company said in a news release.