More than three-quarters of U.S. oil wells, collectively, make just 6% of the country's oil. They're called marginal wells because of how small their output is. But they're a big deal.

This story was produced in partnership with the Pulitzer Center. It is part four in a four-part series. Read part one here, part two here and part three here. Correction: This article has been ...

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Alberta’s oil and gas industry is no stranger to challenges, but for women like Danny Szabon, those challenges take on a ...

Interior Secretary Doug Burgum lauded millions in federal windfall from sales of oil and gas leases in Trump's first three ...

U.S. oil producers are grappling with geological limits to production growth as the country's top oilfield ages and produces ...

A new study found that children diagnosed with a form of leukemia between 2002 to 2019, during Colorado’s hydraulic ...

HOUSTON, March 26 (Reuters) - U.S. oil and gas activity increased slightly in the first quarter, but energy company executives were pessimistic about the sector's outlook, wary of new trade ...

The study builds on a small body of previous research, but Colorado’s oil and gas industry strongly disputes the findings.

A federal judge has ruled that more than 109,000 square miles of Gulf Coast federal were unlawfully opened up for offshore ...