Why Billions in Proven Shale Oil Reserves Suddenly Became Unproven
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Why Billions in Proven Shale Oil Reserves Suddenly Became Unproven

——————— Why Billions in Proven Shale Oil Reserves Suddenly Became Unproven From our friends at Bloomberg: Ultra Petroleum Corp. was a shale success story. A former penny stock that made the big leagues, it was worth almost $15 billion at its 2012 peak. Then came the bust. …