Tanglewood Exploration, LLC has entered into a joint venture with Republic Energy, Inc. for the purpose of drilling and developing the Marcellus Shale in the Appalachian Basin. Republic Energy Inc. (Republic) is a privately owned oil and gas company which has focused on the acquisition and development of low to medium risk oil and gas prospects since 1984. The company is a “full service” independent oil and gas company with strong geological, geophysical, engineering, operations, and administrative staffs located in Dallas, Texas. Republic has been active in the Appalachian Basin since late 2006 and has currently drilled two Marcellus Shale wells in Northwestern West Virginia. These two wells are scheduled to be frac’d in March 2008. Republic has drilled over 350 Barnett Shale wells since 1994 and will bring expertise and knowledge to the Marcellus Shale. Learn more on Republic at republicenergy.com.

The Barnett Shale is a geological formation of economic significance. It consists of sedimentary rocks of Mississippian age (354-323 million years ago) in the State of Texas. The formation is estimated to stretch from the city of Dallas to west of the city of Fort Worth and south, covering 5,000 square miles and at least 17 counties. The Barnett Shale is already the second largest producing on-shore domestic natural gas field in the United States

Some experts have suggested the Barnett Shale may be the largest onshore natural gas field in the United States. The field is proven to have 2.5 trillion cubic feet of natural gas, and is widely estimated to contain as much as 30 trillion cubic feet of natural gas resources.