Niobrara shale rock formation estimate climbs to 3.6B barrels
Denver-Julesburg basin is an area that includes the oil-rich underground rock formation called Niobrara and production is now estimated to a third larger than in previous forecasts. Two of the biggest energy companies Noble Energy and Anadarko Petroleum Corp. are now predicting a combined oil output of 3.6B barrels. Niobrara is one of several shale…