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Emissions from ships, trucks and trains at the Port of Oakland in California dropped by 75% since 2015 after a $100 million cleanup campaign.

The U.S. average retail price of diesel dipped 0.3 cent to $2.478 a gallon, according to the Department of Energy.

The U.S. average retail price of diesel climbed again, rising 3.6 cents to $2.481 a gallon, according to the Department of Energy, amid signs crude production in some countries was on the rise.

The U.S. average retail price of diesel jumped 5.6 cents to $2.445 a gallon, according to the Department of Energy, as oil prices hit a 12-month high.

A U.S. District Court judge in Minnesota has shot down an attempt by trucking, automotive and oil industry groups to abolish the state’s requirement that diesel sold at the pump contain at least 10% biofuel.

The U.S. retail diesel average price rose 0.7 cent to $2.389 a gallon Oct. 3 and follows a decline of the same amount the previous week, the Department of Energy reported.

The U.S. average retail price of diesel dipped 0.7 cent to $2.382 a gallon, according to the Department of Energy as oil prices hovered around $45.

The U.S. diesel average price fell 1 cent to $2.389 per gallon, according to a Department of Energy survey of fueling stations released Sept. 19.

The U.S. diesel average price slipped 0.8 cent to $2.399 per gallon, according to a Department of Energy survey of fueling stations released Sept. 12, as the price of crude continued to fluctuate.