Kevin Sheridan RENO, Nev. (KOLO) - Gas prices in the state of Nevada have begun to rise once again. AAA Nevada says weeks of sliding gas prices have concluded as the future of the ceasefire between the US and Iran remain uncertain. The average cost of a gallon of gas in Reno is $4.81 and $4.55 in Las Vegas. “Crude oil prices are currently in the $70 per barrel range which is up slightly from last week,” said Aldo Vazquez, spokesperson for AAA Mountain West Group.