Devon pressing Barnett shale exploitation, expanding search

A large US independent is exploiting a substantial gas resource in the Mississippian Barnett shale in the Fort Worth basin.Devon Energy Corp., Oklahoma City, expects to recover an initial 8% of an estimated 142.5 bcf/sq mile of original gas in place (OGIP) from its core area leasehold in North Texas. That compares with 5-50 bcf/sq mile for the Ohio, Antrim, New Albany, and Lewis shales being exploited in northern and western US basins.The company has booked 2.1 tcfe of net reserves thus far in the overpressured, unconventional Barnett gas play. Click here to enlarge imageThe company suspects it could extract as much as an additional 8-10% of OGIP by restimulating wells multiple times dur...

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