Rouge Fractures April 30, 2012 | Durham University "The chances of rogue fractures due to shale gas fracking operations extending beyond 0.6 kilometres... Arkansas Natural Gas Severance Taxes Rising 500%? February 14, 2011 | Bloomberg.com An article at Bloomberg.com explores why some people would like to see severance taxes on... BHP Billiton Buys a $4.7B Gas Shale Stake from Chesapeake February 21, 2011 | Reuters BHP Billiton, the worlds largest mining company which also holds major oil and gas interests,... Arkansas: Waste Water Injection and Earthquakes July 27, 2011 | NPR An injection well used to dispose of waste water produced by natural gas drilling in... |