Pump prices are up in 47 states, including Oregon, this week but a drop in crude oil prices could help stall further increases in gas and diesel prices. “Crude oil prices are lower this week after hostilities eased in the Middle East, and that’s helping to put the brakes on spiking pump prices. Crude oil prices dropped to start this week after a pause in hostilities between the U.S. and Iran. Crude oil prices remain volatile, with dramatic swings driven by concerns of how the conflict with Iran impacts global oil supplies. Crude oil is the main ingredient in gasoline and diesel, so pump prices are impacted by crude prices on the global markets.