Kerogen-rich shale is a type of oil-bearing rock containing a lot of solid organic matter—called kerogen—that has not matured into oil yet. Such rock is characterized by extremely low porosity and ...

Explore the differences between shale oil and conventional oil, including extraction costs and methods, and how these impact ...

BOSTON – A major defense contractor is selling technology to a large oilfield services company that hopes microwaves will someday become a key tool in unlocking the vast but hard-to-extract oil ...

Unconventional oil refers to crude oil extracted through new methods like hydraulic fracturing and oil sands mining. Explore ...

Fossil fuel companies are experimenting with using carbon dioxide captured from the air in oil extraction to usher in a new era of planet-friendly “net-zero oil” – but the idea is an illusion, ...

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 updated ...