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How fracking works

After decades of experimentation, drillers have mastered hydraulic-fracturing techniques.

1. Once the target depth is reached, the drill goes horizontal. Steel piping surrounded by cement forms the well.

By Brian O'Keefe, assistant managing editor @FortuneMagazine - Last updated April 16 2012: 6:54 AM ET
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America's energy job machine is heating up

Deep-sea drilling and fracking are helping to unearth abundant supplies of oil and gas. The coming energy renaissance could be just the elixir the U.S. economy needs.