American Oil—Good to the Last Drop?

How low can they go?

U.S. shale developers have been on a relentless chase to drill for oil as cheaply as possible. With plenty of cash in their pockets and a hunch that they might soon exhaust their best inventory in the prolific Permian Basin, some companies have been shifting their focus to making sure they get every last drop of crude they can get out of what they have. That could mean higher costs today.