UPI: U.S. offers more hints at fracking rules

New U.S. proposals for hydraulic fracturing on federal land will likely include input from state-based regulatory mechanisms, an official said.  U.S. President Barack Obama said there's enough natural gas in the country to meet domestic demand for 100 years but companies working to exploit those reserves must do so responsibly. 

Much of the natural gas available in the United States is in shale deposits. Environmental groups say so-called fracking fluids, a mix of water and chemicals used to coax gas out of shale formations, are dangerous.  U.S. Deputy Interior Secretary David Hayes said proposed rules on hydraulic fracturing could complement FracFocus, a voluntary disclosure forum for the natural gas industry.  MORE