That may help: no more dropping sports in order to squeeze in extra drill on exam technique.

ECONOMIST: School examinations

The fact that oil companies now have to go a mile underwater and then drill another three miles below that in order to hit oil tells us something about the direction of the oil industry.

WHITEHOUSE: Deepwater BP Oil Spill: Presidential Press Conference

One must drill the one or two year shale oil options and produce in order to convert them to open-ended arrangements.

FORBES: Driven by Oil Shale Economics, Natural Gas Prices Primed for Slow and Steady Rise