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A misconduct investigation completed by Tennessee Technological University concluded that university researchers erred when stating in an industry-funded glider kit study that emissions from the trucks are as clean or cleaner than those from newer trucks.

ANCHORAGE, Alaska — The first oil and gas production wells in federal Arctic waters have been approved by U.S. regulators. The Bureau of Ocean Energy Management on Oct. 24 announced it issued a conditional permit for the Liberty Project, a proposal by a subsidiary of Houston-based Hilcorp for production wells on an artificial island in the Beaufort Sea.

The International Maritime Organization rejected a proposal — supported by both the U.S. and shipping groups — for a phased start to rules that will limit the sulfur content of ship fuels starting in 2020.

A few months ago lawyers for Exxon Mobil Corp. stood before a judge and told New York’s attorney general to “put up or shut up” after investigating the company’s public disclosures about climate change, saying it should sue the company or move on. New York Attorney General Barbara Underwood said Exxon Mobil misled investors about the risks that climate change poses to its operations.

The U.S. average retail price of diesel inched down 1.4 cents to $3.380 a gallon as crude oil prices slipped amid growing U.S. inventories of crude.

BISMARCK, N.D. — The developer of the Dakota Access pipeline is gauging shippers’ interest in a possible expansion of the volume of crude oil moved through the pipeline from 500,000 barrels to 570,000 barrels per day, despite ongoing tribal efforts to shut the pipeline down.

Sunoco has completed its $24 million acquisition of Brenco Marketing Corp.’s fuel-distribution business.

AxleTech and Thor Trucks have partnered to create a fully electric commercial vehicle powertrain, according to an Oct. 16 press release. The two will integrate AxleTech’s e-axle technology with Thor’s proprietary battery technology.

Marathon Petroleum Corp., the largest U.S. oil refiner after its $23.3 billion acquisition of rival Andeavor this month, is weighing a plan to start sales of high-ethanol gasoline at its stations in Minnesota, according to people familiar with the matter.

U.S. refiners are getting stung by President Donald Trump’s reported efforts to keep consumer prices from rising in the run-up to the 2020 election. The Trump administration is seeking to slow the implementation in 2020 of tighter fuel restrictions on the global shipping industry.