In the gas industry, an exploration area tends to be described as a “play.” In 1981, George Mitchell, one of the most powerful natural-gas barons in Texas, began to look for a play in an unlikely place: the Barnett Shale, a thick layer of rock, thousands of square miles in area… (Read more… http://www.nytimes.com/news/the-lives-they-lived/2013/12/21/george-mitchell/)

(English, Article, 2014)

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