Money Gas prices up: Sticker shock hits pump as heat wave, oil prices push cost to 8-month high July 28, 2023July 31, 2023Medora Lee, USA TODAYComments Off on Gas prices up: Sticker shock hits pump as heat wave, oil prices push cost to 8-month high Gas prices hit 8-month high as nation's heat wave slows down refineries and OPEC's cuts and sanctions squeeze oil supply. Hurricanes remain wildcard.