Gas prices continue to fall as oil prices globally remain low.

With the global market awash in oil, American motorists continue to enjoy the benefits of relatively low fuel prices, which have dropped steadily since the start of the summer holidays, according to AAA.

Prices at pumps nationwide have fallen since early June by 25 cents per gallon with the national average price for regular unleaded gasoline has declined to $2.13 per gallon, the lowest level in the past 100 days and the lowest price in early August since 2004, AAA reported.

AAA also said the price is three cents less than one week ago, 15 cents less than one month ago and 52 cents less than the same date last year as prices across most of the country continue to slide during the peak road-trip season due to abundant supplies.

Gas prices have now dropped in 45 states and Washington, D.C. during the past week, though states in the Midwest, such as Indiana, Ohio and Missouri, posted hikes last week. Prices swing significantly from week to week in Midwest because of refinery problems.

Nonetheless despite the recent uptick in several states, prices in every state are lower than both one month ago and one year ago, AAA said.

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More than 40% of gas stations nationwide were selling gasoline for $2 per gallon or less, compared to just a handful on this same date last year. Fewer than 1% of stations nationwide are selling gasoline for more than $3 per gallon, compared to 13% of stations one year ago, AAA reported

“With gasoline supplies high and oil prices low, pump prices are likely to remain relatively cheap through the remainder of the summer and into the fall. While a record number of American motorists have hit the road for summer travel, sharply lower gas prices have not triggered the sharply higher gasoline demand that many analysts had anticipated,” AAA said.

The Energy Information Administration reported U.S. gasoline demand in May was down by 213,000 barrels per day to 9.436 million. While lower than first reported, this demand number was still the highest total on record for the month of May, the EIA said.

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Gas prices in 14 states, primarily in the Southeast, have dropped below $2 per gallon. Gas prices are dropping on the West Coast, but it remains the most expensive market for gasoline, including the only four states where drivers are paying more than $2.50 on average: Hawaii, California, Washington and Alaska.

The oversupply of crude, meanwhile, has shown no sign of abating or being liquidated. Oil prices edged up this week, supported by a weaker dollar, but U.S. crude futures remained below $40 per barrel and Brent was below $42 as ongoing fuel oversupply and stuttering economic growth weighed on markets. Both prices are below the mark are well below the mark analysts believe would signal an end to the glut.

“Risks for oil remain skewed to the downside in 2H16. Supply disruptions and risk appetite were supportive April – June, but fundamental headwinds are growing, which outnumber any recent positives,” said Adam Longson of Morgan Stanley in an outlook to clients.

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The U.S. bank said the global economic outlook was also weak, potentially hitting fuel demand. “We expect global growth to move below consensus estimates,” Morgan Stanley said.