Brent crude, the global benchmark for oil, was up about 1 percent as trading resumed on Sunday, while the national average price of gas was nearly $4.15 a gallon.

The rise follows diplomatic progress between the U.S. and Iran, easing tensions and supporting market stability. Oil markets had been volatile amid concerns over supply disruptions in the Middle East, but recent trade strikes signaled a potential de-escalation.

The price increase, though modest, reflects cautious optimism in energy markets. Traders noted that while geopolitical risks remain, the return to normal shipping lanes and renewed diplomatic channels could support longer-term price equilibrium.

Gas prices remain elevated, with the U.S. national average holding near $4.15 per gallon. The recent uptick aligns with broader inflation trends and seasonal demand patterns, though the impact from the Iran-related developments appears limited in the short term.