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

Venezuela sits on 303 billion barrels of oil—more than Saudi Arabia. So why does it pump less than 1% of global supply? The ...

Most of the reserves in the country are extra-heavy oil that’s tough to extract and generates more greenhouse gases.

Venezuela has the largest oil reserves of any country on Earth. But the type of oil it has is difficult, and dirty, to process. Experts say ramping up production would be expensive, and dangerous for ...

U.S. action in Venezuela has renewed focus on the country’s vast oil reserves, heavy crude challenges, and the expropriations ...

For oil markets, Venezuela is a footnote in an age of abundance. For Middle East, the US move is a dangerous reminder.

The world’s largest crude reserves look like a geopolitical prize. But climate experts warn that tapping them at scale would ...

BELÉM, Brazil — For years, Democrats broadly dismissed as a Big Oil talking point the idea that California’s consumption of oil from the Amazon drives deforestation. At this year's U.N. climate talks, ...