The national average for a gallon of gas on May 2 was $4.19, a weekly increase of 7 cents per gallon from April 29 and a year-over-year increase of $1.29 per gallon, AAA reported.
“Gasoline prices could continue to see a slow but steady rise," said De Haan.
Crude oil was trading lower early the morning of May 2 and was down 3 percent to $101.65 a barrel.
Oil prices account for about 60 percent of prices at the pump, with the cost of a barrel of crude hovering at about $100 a barrel.
The disruption of global energy supplies since the Russian invasion of Ukraine and the subsequent sanctions on Moscow have hit already high gas prices worldwide.
“As long as the supply remains tight, it will be hard for crude oil prices to fall and consumers will in turn face higher prices at the pump,” said Andrew Gross, a AAA spokesperson, in the agency's announcement.
“It now costs drivers in the U.S. about $23 more to fill up than a year ago,” he said.
According to data from the Energy Information Administration (EIA) on April 28, total domestic gasoline stocks in the United States decreased by 1.6 million barrels to 230.8 million barrels, while demand for gas decreased slightly from 8.87 million barrels per day to 8.74 million barrels per day.
Lower demand for gas normally pushes prices down at the pump, but fluctuating oil prices and tightening gasoline supplies are pushing pump prices higher, since crude oil prices remain above $100 per barrel.
The EIA weekly report showed total U.S. domestic crude inventories rising by 700,000 barrels to 414.4 million barrels, but crude supplies still remain tight and the market continues to be highly volatile.
Oil prices briefly declined in the last week of April due to lessening global demand following the lingering lockdowns in China, but prices had risen earlier in that week due to the EIA report showing that the current level of U.S. crude stocks was approximately 16 percent lower than at the end of April 2021.
AAA said that crude prices will likely continue to increase, leading gas prices to go higher.
The motorist advocacy group said the market will be focused on the results of the upcoming OPEC+ conference on May 5, which may see the oil cartel raise production to help meet global demand.