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DALLAS — Drivers lined up at gas pumps in parts of Texas Aug. 31 as more stations ran out of gas and prices rose steeply in response to Hurricane Harvey’s impact on Gulf Coast refineries.

Four California senators have called for significantly increasing state funding to curtail pollutants from trucks and buses.

The U.S. government is releasing half-a-million barrels of crude oil from the Strategic Petroleum Reserve to a Gulf Coast refinery as the region’s refining industry works to recover from the devastation of Harvey.

A notice from the U.S. Environmental Protection Agency to revisit parts of the Phase 2 final rule on greenhouse gas emissions from heavy- and medium-duty trucks isn’t likely to create changes quickly, as the agency has not presented plans for expedited action and environmental groups are vowing to pursue a challenge in a federal appeals court — once the case is no longer being held in abeyance.

DALLAS — Hurricane Harvey is sending pump prices higher for U.S. motorists and causing temporary shifts in the flow of oil and gasoline around the world after taking down a huge chunk of U.S. refining capacity.

Parked east of the California Capitol steps was a long line of vehicles as clean as they were large, including a yellow school bus, a UPS delivery truck and an AC Transit bus — all with electric or hybrid motors.

Comments on a plan by the Trump administration to halt the future growth of biomass-based diesel fuel and reduce the short-term requirements for all renewable fuels were largely split down the middle, pro and con.

COLUMBUS, Ind. — Cummins Inc. has unveiled a concept truck with an all-electric powertrain, highlighting the diesel engine manufacturer’s commitment to electric power as an important part of its future.

The U.S. average retail price of diesel rose 0.9 cent to $2.605 a gallon as Hurricane Harvey wound down to a tropical storm after it disrupted oil production platforms and fuel refineries along the Gulf Coast of Texas before inundating Houston.