Expect to pay more at the pumps this July 4th holiday period. AAA Hoosier Motor Club says the coming holiday weekend will see the highest Independence Day weekend gas prices since 2008. AAA blames that on current Iraqi unrest that‘s impacting worldwide petroleum prices. AAA says that means Americans can expect to pay upwards of 20 cents more per gallon than they did about a year ago. Indiana gas prices are currently 21 cents higher than this time last year.