This will be the most expensive Labor Day ever for gas. Here are the 10 states with the highest fuel prices — and 10 with the lowest.

This Labor Day is setting a record for gas prices. David McNew/Getty Images AAA expects this will be the priciest Labor Day ever for gas, with averages above $4 a gallon. Oil and gas prices across the US have remained high amid the ongoing US-Israeli war with Iran. California has the highest average fuel price, inching closer to $6 a gallon since August. Since the beginning of the Iran war in late February and the subsequent closure of the Strait of Hormuz, Americans have been feeling the effects at the gas pump. After the conflict started, prices rose sharply across the US. AAA data show the national average peaked in May at roughly $4.56 per gallon, then zigzagged through the end of August, averaging $4.09. Now, as average prices continue to creep up, hitting $4.15 on Friday, AAA expects this to be the most expensive Labor Day on record for gas. To provide a snapshot of where prices stood heading into the holiday weekend, Business Insider used AAA data to calculate the percent change in gas prices in the 10 priciest and the 10 cheapest states from August 27 to September 4. We also looked at the gas prices on September 4 and compared them with prices reported one year ago. "The na