customers, of course, i mean, gas prices is something that affects everybody. >> reporter: now kirakosianays he has to pass along some of those fuel costs to his customers, adding a delivery surcharge. >> unfortunately there is no alternative way. you have to get gas. you have to get the pizza out there. >> reporter: the price for a gallon of regular gas now tops $4 in the golden state. but filling up is starting to add up for drivers all across the country. just this week alone, a gallon of regular has jumped 13 cents. >> it's ridiculous. it's getting high. >> reporter: gas prices are already up 20 cents from this time last year. the national average for a gallon of regular is $3.60. the spike in prices at the pump are expected to coincide with the peak of the summer driving season, creating a perfect storm for drivers and families on a budget. >> gas prices being 25 cents more, no, no traveling for us. sorry. >> reporter: analysts say global crude prices are up, driven by concerns over unrest in egypt and ongoing conflicts in the middle east. >> right now, there are ample supplies of ga