From Shortage to Glut, and Boom to Bust

In recent decades, technological advances have unlocked huge reserves of unconventional natural gas. Directional drilling and advanced seismic have been important, but many of the most critical advances have occurred in the realm of completion technologies, including hydraulic fracturing. Fracing was used half a century ago, but recent improvements have been stunning, unlocking new tight gas in Colorado and Wyoming, then shale gas in Texas
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