Drillers mull cost of gas extraction from Marcellus Shale

02/4/2008 | Houston Chronicle (tiered subscription model)

New technology may finally allow industry to tap into Appalachia's Marcellus Shale, which is said to contain as much as 50 trillion cubic feet of recoverable natural gas, buried more than a mile underground. But questions about the costs and technology remain an obstacle to development.

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