The average price of a gallon of self-serve regular gasoline in Los Angeles and Orange counties recorded their largest increases since May 6 Thursday.

The Los Angeles County average price rose 2 cents to $5.403 after dropping 43 of the previous 44 days to its lowest amount since March 11, according to figures from the AAA and Oil Price Information Service.

The average price dropped 78.3 cents over the past 44 days, including four-tenths of a cent Wednesday. It is 1 cent less than one week ago and 47.8 cents lower than one month ago, but 85.7 cents more than one year ago and 70.9 cents higher than before the joint U.S./Israel attack on Iran on Feb. 28, which sent oil prices higher and drastically accelerated increases at the gas pump.

The Orange County average price rose 3 cents to $5.29, one day after dropping eight-tenths of a cent to its lowest amount since March 9. It is six-tenths of a cents more than one week ago, 46.7 cents less than one month ago, 79.8 cents higher than one year ago and 65.4 cents greater than before the attack on Iran.

The national average price also recorded its largest increase since May 6, rising 5 cents to $3.846, one day after a run of 45 decreases in 47 days totaling 77.4 cents ended with an increase of six-tenths of a cent.

The national average price is eight-tenths of a cent more than one week ago, 31.5 cents less than one month ago, 68.3 cents higher than one year ago and 86.4 cents greater than before the attack on Iran began.