Oil prices settled higher on Wednesday in a volatile session as investors weighed the chance of supply disruptions from the Iran-Israel conflict and potential direct U.S. involvement. Brent crude futures settled 25 cents higher at $76.

Global oil prices edged modestly lower in Wednesday afternoon trading, remaining nearly 10% higher than before Israel’s first attack on Iran last week, as investors look for evidence of supply disruption in crude markets as the conflict enters its sixth day.

President Trump said on Wednesday that Iran wants to negotiate, but he wouldn’t rule out U.S. military action.