A potential increase in gasoline taxes in several U.S. states could put a dent in demand at the pumps and mark another setback for a market already flooded with excess fuel. States where gasoline taxes in some cases have not risen in decades, are discussing hikes. Conditions might be ripe for the proposed increases to win approval in state legislatures, tax experts said this week. The discussions come at a time when U.S. refiners are still reeling from their worst year since the shale boom and face the prospect of weak retail demand for the first time in five years. Oversupply, in the world’s second largest energy consumer, was rampant in 2016 and this year looks no different. Any significant increase in taxes is likely to be […]