Marcellus Shale: Rex Energy Provides Update

Rex Energy Corporation (REXX) provided an operational update today on its Marcellus Shale activities and 2009 capital budget.

The company is pleased to announce initial flow rates for its first two vertical test Marcellus Shale wells completed in Westmoreland County, Pennsylvania. These wells, drilled in the deeper portion of the Marcellus play, had peak flow rates of 400 and 1,200 Mcf per day respectively before being turned into sales. Each well continues to stabilize at daily production rates of 300 - 500 Mcf per day, and the high operating pressures suggest increased production is likely with further production facility optimization. The company's third vertical test well in Westmoreland County has been drilled and will be completed by mid-December.

In Clearfield County, Pennsylvania the company has recently completed drilling its first vertical test well encountering approximately 150 feet of Marcellus Shale formation. The company expects to complete the well in late December. Additionally, in Butler County, Pennsylvania area, the company participated in the drilling of two additional vertical wells with its partner. Both wells are expected to be completed during the first quarter of 2009 following installation of the company's gas processing facility.

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