National Average Price for Regular Unleaded Current: $2.147; Month Ago: $2.182; Year Ago: $2.602. National Average Price for Diesel Current: $2.373; Month Ago: $2.391; Year Ago: $3.001.

Oil prices slipped Monday, giving back some of a steep climb from Friday seen after Saudi Crown Prince Mohammed bin Salman said the kingdom would develop nuclear weapons if arch-rival Iran did. Underpinning prices are tensions between Saudi Arabia and Iran, which are seen potentially disrupting global supplies. The Saudi crown prince visits the U.S. this week, which could provide plenty of headlines, as the Trump administration has called for a new look at the Iran nuclear pact. Trump told European leaders they must “fix the terrible flaws” in the deal or the U.S. would refuse to extend its sanctions relief on Iran. Click Read More below for additional information.

“It does appear the only way is up for oil,” said Michael McCarthy, a chief strategist at CMC Markets in Sydney. “A lot of traders are speculating about the potential outcome of the OPEC meeting. Expectations are high and that could lead to disappointment if OPEC and its partners don’t deliver, but it doesn’t seem many are prepared to take the risk of that happening.” U.S. crude stockpiles at Cushing, Oklahoma, the delivery point for WTI and the biggest oil-storage hub, dropped by 1.8 million barrels last week, the API said, according to people familiar with the data. Gasoline inventories expanded by 869,000 barrels, API data show. Click Read More below for additional information.