U.S. Shale Gas Overview

Over the past decade there has been a technology breakthrough in the oil and gas industry in the United States regarding the extraction of oil and gas from black shales. The combination of horizontal drilling and hydraulic fracturing (fracking) has enable vast amounts of previously uneconomic accumulations of oil and gas to be commercially developed. These new methods were originally developed to extract natural gas from the Barrett Shale in Texas, and were then applied to the Woodford Shale in Oklahoma, the Fayetteville Shale in Arkansas, the Haynesville Shale in Louisiana, and the Marcellus Shale in Pennsylvania. The technology has also been successful applied to the commercial development of oil reserves from the Bakken Shale in North Dakota, the Eagle Ford Shale in Texas and the Niobrara Shale in Colorado.