Gasoline prices will drop a whopping 87 cents a gallon in the Azores and Turkey on Saturday, the Army and Air Force Exchange Service said.

Prices for gas in Germany and the United Kingdom, meanwhile, fall less than a penny a gallon in line with the U.S. average. Diesel in the two countries sheds 2.8 cents a gallon.

In the Netherlands, both grades of unleaded gas drop by more than 7 cents, and diesel falls 12.2 cents.

These declines will happen in Italy on Sunday, where a 100-liter booklet of unleaded gas coupons dips from $78 to $76, said Bart Di Muccio, administrator of the Tax-Free Office in Naples, which runs the gas coupon program in Italy. Diesel drops from $96 per 100 liters to $91.

In the Pacific theater, prices will also fall precipitously Saturday.

Midgrade unleaded, which had been stuck at $2.43 a gallon since late November in Japan and Okinawa, falls more than 65 cents to $1.767, according to AAFES.

The precipitous price drops in the Azores, Turkey, Japan and Okinawa are in reaction to adjustments in prices for fuel contracted through the Defense Energy Support Center. DESC will adjust its prices Feb. 1, the first change since July.