(NAFB) – Gas and diesel prices fell again in the last week, following a drop in the value of oil.

GasBuddy reports the national average gas price dropped 2.9 cents to $3.14 a gallon, while diesel fell .7 cents to $3.26 per gallon.

GasBuddy’s Patrick De Haan states, “With oil prices struggling under the weight of a rise in new Covid cases thanks to the Delta variant and OPEC’s increase in oil production, average gas prices in most states finally drifted lower.”

However, U.S. gasoline demand surged to a new 2021 high last week, and De Haan warns of a bumpy end to summer regarding fuel prices. Implied gasoline demand rose 12,000 barrels per day to 9.3 million, just slightly under normal levels for this time of year.

The national average for gas now stands 4.7 cents higher than a month ago and 97.2 cents higher than a year ago. Meanwhile, oil demand typically declines heading into fall.