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Federal geologists provide huge Utica oil, gas estimate

Drilling companies beginning to explore the Utica Shale got a piece of good news Friday when the U.S. Geological Survey estimated the rock formation in Ohio, Pennsylvania and other states holds enormous reserves of natural gas and oil.

Releasing its first estimate of the Utica, the USGS calculated the shale formation holds about 38 trillion cubic feet of undiscovered, recoverable natural gas, 940 million barrels of oil and 9 million barrels of natural-gas liquids, such as ethane and propane.

From wire dispatches and staff reports