The $6 trillion global energy industry has undergone a lot of changes over its long history, from the first successful oil tanker developed by Sweden in 1878 to the first mobile steel barges for ...

Over the course of millions of years, heat and pressure can transform the organic remains of animals and plants into crude oil. That's why they're called a fossil fuels — the long-dead creatures that ...

Lestz eventually developed a fracking process that substitutes propane, or liquid petroleum gas (LPG), for water. Chevron wasn't interested in LPG fracking, Lestz said. But in 2006, a business friend ...