By Gary Borders

The price of a gallon of gasoline tops $3 across much of the state, which is up more than $1.20 from a year ago, according to AAA. The average price for regular gas in Texas stood at $3.03 per gallon on Sunday as crude oil prices continue to creep up, closing above $80 per barrel. Crude oil price is one of a quartet of factors that influence the cost of gasoline, reported The Dallas Morning News. The cost of refining, distribution expenses and taxes also affect the price at the pu...