The average price for regular gasoline at US pumps fell 3.99 cents in the past two weeks to $3.5586 a gallon, according to Lundberg Survey Inc.
The survey covers the period ended Friday and is based on information obtained at about 2,500 filling stations by the Camarillo, Calif.-based company.
The average, which reached a year-to-date peak of $3.795 in the period ended Feb. 22, is about 20.05 cents below the year-earlier price of $3.7591 a gallon.
‘‘We have tremendous gasoline production occurring here, and American refiners are running at very high rates of capacity,’’ said Trilby Lundberg, president of Lundberg Survey.
‘‘There is no tightness in supply; if anything we have an oversupply of gasoline in the United States.’’
The highest price for gasoline in the lower 48 states among the markets surveyed was in Long Island, N.Y., where it averaged $3.82 a gallon, Lundberg said.
The lowest was in Charleston, S.C., where customers paid an average of $3.22 a gallon. Regular gasoline averaged $3.80 a gallon in Los Angeles.
Gasoline futures on the New York Mercantile Exchange gained 9.9 cents, or 3.4 percent, to $3.0072 a gallon in the two weeks that ended Friday.
US gasoline stockpiles tumbled 4.03 million barrels in the week ended Aug. 16 to 218.4 million, the lowest since May, according to data compiled by the Energy Information Administration, the statistical arm of the Energy Department.
‘‘Since there is no supply emergency occurring worldwide for crude oil, that leaves gasoline without a major hike from crude any time soon,’’ Lundberg said.
‘‘A further decrease in the price at the pump is more likely than a rise. We may see a few more cents’ decline in the next several days.’’
West Texas Intermediate crude on the Nymex climbed 45 cents, or 0.4 percent, to $106.42 a barrel in the two weeks ended on Friday.
Crude inventories fell a third consecutive time in the week ended Aug. 16, dropping 1.43 million barrels to 359.1 million, the lowest level in almost a year. Inventories at Cushing, Okla., the delivery point for WTI, fell 1.09 million barrels to 37.4 million, the lowest level in 17 months.
WTI will probably decline in the coming week on speculation that demand from refineries will drop with the end of the peak-demand summer driving season, a Bloomberg survey showed.
Twenty of 33 analysts, or 61 percent, forecast that crude will decrease through Aug. 30. Seven respondents, or 21 percent, predicted an increase and six said there would be no change.