Plummeting oil prices may add a little jingle in the pockets of holiday shoppers and travelers but are raising financial worries in some states that had been tapping into surging oil tax revenues to pay for roads and other government services. With oil prices now around a five-year low, budget officials in about a half-dozen states already have begun paring back projections for a continued gusher of revenues. Spending cuts have started in some places, and more could be necessary if oil prices stay at lower levels. How well the oil-rich states survive the downturn may hinge on how much they saved during the good times, and how much they depend on oil revenues. Some states, such as Texas, have diversified their economies since oil prices crashed in the mid-1980s. Others, such as Alaska, remain heavily dependent on oil and will have to tap into sizeable savings to get […]