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China’s shipowners are shunning Iran’s oil, while the OPEC producer is using its own tankers to supply top customers as impending U.S. sanctions threaten to disrupt global crude trade.

LINCOLN, Neb. — A federal judge has ordered the U.S. State Department to conduct a more thorough review of the Keystone XL pipeline’s proposed pathway after Nebraska state regulators changed the route, raising the possibility of further delays to a project first proposed in 2008.

A federal judge has postponed the sentencing date for convicted former Pilot Flying J President Mark Hazelwood until Sept. 26.

WASHINGTON — The Environmental Protection Agency privately challenged the Trump administration’s rationale for freezing Obama-era mileage standards, saying the proposal actually would increase U.S. highway deaths.

WASHINGTON — Americans shopped at a healthy pace in July, buying more cars, clothes and appliances, evidence that confident consumers are helping drive robust economic growth.

New rules limiting the amount of sulfur allowed in shipping fuel is expected to cut demand for high-sulfur fuel oil and the sour crude that yields it. In Canada, that could extend — or worsen — the biggest price slump in nearly five years.

PetroChina, a unit of the state-owned China National Petroleum Corp., may suspend its buying of U.S. liquefied natural gas cargoes during the colder months, just as new American LNG terminals start up.

A trailer makers group is asking a federal appeals court to require that two federal agencies state when they plan to make a final decision on a 2016 Obama-era heavy-truck greenhouse gas rule. Whether revised or kept in place, the rule would regulate trailers for the first time.

One of Oklahoma’s fastest-growing companies, Mammoth Energy Services, continued to expand in the second quarter, buying up two more companies and securing new contracts throughout the country.