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Tighter rules on Colorado oil and gas development struck out at the ballot box in November and at the state Supreme Court in January. Now, Democrats, who control the Legislature, plan to introduce a sweeping bill to redefine the Colorado Oil & Gas Conservation Commission’s mission to emphasize public health and safety.

Rocketail announced the launch of Rocketail Wing, its rear drag-reduction technology for trailers.

President Donald Trump resumed his attacks on OPEC, saying the world is too fragile to handle a price hike and urging the cartel to “relax and take it easy.”

A red-hulled tanker is drifting in Massachusetts Bay, trying to capitalize on the two-month window when natural gas in this region can become the most expensive in the United States, and sometimes the world.

WASHINGTON — The trucking industry can serve as a testing ground for vehicle miles traveled programs, according to governors gathered to discuss infrastructure.

The wave of climate policy-centric hearings in the U.S. House of Representatives this month continues.

Exxon Mobil Corp. is partnering with Microsoft Corp. to crunch trillions of bits of data as the oil titan seeks to more than triple shale-oil production in the Permian Basin in less than a decade.

Oil declined for the first time in more than a week after U.S. government data showed an increase in crude stockpiles and production, and as the commodity tracked moves in the equity market.

The Pipeline and Hazardous Materials Safety Administration has issued a final rule that requires railroads to develop and submit comprehensive oil spill response plans for route segments traveled by high-hazard flammable trains.

Alberta is preparing a giant crude-by-rail operation to help its oil-sands producers cope with a pipeline crunch, and it expects a big profit from the venture.