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The U.S. average retail price of diesel rose 1 cent to $3.079 a gallon, the Department of Energy reported Jan. 6.

PROVIDENCE, R.I. — The global benchmark for crude oil rose above $70 a barrel Jan. 6 for the first time in more than three months, with jitters rising over the escalating military tensions between Iran and the United States.

LONDON — The price of oil surged Jan. 3 as global investors were gripped with uncertainty over the potential repercussions after the United States killed Iran’s top general.

DETROIT — Three crashes involving Teslas that killed three people have increased scrutiny of the company’s Autopilot driving system just months before CEO Elon Musk has planned to put fully self-driving cars on the streets.

The U.S. average retail price of a gallon of diesel rose 2.8 cents to $3.069 a gallon, the Department of Energy reported Dec. 30.

Years of planning and preparation by the ocean shipping, oil and trucking industries are set to pay off as adequate supplies of diesel fuel are expected to be ready now that an International Maritime Organization mandate for the use of lower polluting fuel on ocean vessels is about to take effect.

Oil rose for a fifth session, the longest run of gains since July, as a bigger-than-forecast decline in U.S. crude stockpiles eased oversupply concerns.

ANKARA, Turkey — Turkish President Recep Tayyip Erdogan on Dec. 27 unveiled prototypes of a domestically produced electric car, putting him closer to fulfilling a long-held dream of building Turkey’s first “national” automobile.

FRANKFURT, Germany — Automaker Volkswagen is accelerating its move into battery-powered cars, saying it will reach its goal of 1 million electric cars per year two years earlier than planned.