Price Of Diesel Surges 50% In Massachusetts Since Start Of War With Iran

CBS Boston

April 21, 2026

While the average price of gas is down 1 cent over the past week in Massachusetts, diesel prices remain significantly higher, having surged more than 50% since the start of the war with Iran.

At a family-owned farm in Billerica, longtime farmer Bill Griggs said the spike is adding uncertainty to his operation as tensions in the Middle East drive up fuel costs. Griggs relies on diesel to fuel tractors and heat greenhouses, both essential to keeping his business running. But he said recent deliveries have come at a steep price.

"I'm assuming when I ask them to fill my diesel tank, it's going to be expensive," Griggs said, pointing to his latest bill in April, which was hundreds of dollars more than the month before.

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