Residents were sticker shocked at a Chevron in South Miami on Red Road.
Prices were $4.15 a gallon for regular and 50 cents more for full service.
“And I just come here I don't even look at the price I just come here it's so convenient and everybody else comes here but no the prices is going up, I don't know what to do,” said South Miami resident Val Fox.
On U.S. 1, regular gas at the BP is a penny short of $4, and it's $4.05 just a few blocks away at the Shell.
“I'm from Minnesota and it's a little bit less up there so moving down here was kind of any eye opener,” said Melissa Segarra.
According to MiamiGasPrices.com, regular is up nearly 10 cents a gallon in just one week – that increase is three times the national average.
The state says it has received 160 calls on price gouging in the wake of Tropical Storm Isaac's visit to Florida. Of those complaints made to a state hotline by Monday afternoon, only 44 were deemed for further review, said John Lucas, a spokesman for the Florida Attorney General's Office.
Max Alvarez, a distributor and gas station owner, said prices will go up some more and weather is partly to blame.
“Simply because transportation has been disrupted, Port Everglades was closed in fact yesterday, they opened up today about the middle of the day so now the operation will resume back to normal but that puts us back,” Alvarez of Sunshine Gasoline Distributors Inc. said.
Now Tropical Storm Isaac is forcing major refineries along the Gulf Coast to halt production for a few days.
“And the Gulf Coast is almost responsible for almost 100 per cent of the product we receive here at Port Everglades so that definitely will have an impact on us,” Alvarez said.
Doral resident Juan Delgado said, “Might as well fill up before they start going higher, I guess.”