National Average Price for Regular Unleaded Current: $3.636; Month Ago: $3.619; Year Ago: $3.531. National Average Price for Diesel Current: $3.954; Month Ago: $4.058; Year Ago: $4.046.

The expectation that sanctions will again frustrate Iran’s oil industry and limit global supply has helped to boost prices close to 5% since the announcement. In the past, sanctions against Iran have cut the country’s crude exports by around 1 million barrels a day. But because the European Union and other intentional players have decided to stick with the deal, U.S. sanctions are likely to affect only up to around 350,000 barrels a day, once reinstated within six months’ time, according to analysts at MUFG Bank. The surge in prices this week prompted renewed oil market speculation that Brent could again reach $100 a barrel — a level not seen since before the price crash of late 2014. Click Read More below for additional information.

The U.S. Energy Information Administration reported Wednesday that crude supplies climbed by 2.1 million barrels for the week ended June 1. Analysts surveyed by S&P Global Platts had forecast a decline of 1.3 million barrels, while the American Petroleum Institute on Tuesday reported a fall of 2 million barrels, according to sources. The EIA also reported that total domestic crude production rose by 31,000 barrels a day to fresh weekly record of 10.8 million barrels a day. Gasoline stockpiles jumped by 4.6 million barrels for the week, while distillate stockpiles rose 2.2 million barrels, according to the EIA. Click Read More below for additional information.