Natural Gas News Portugal: Porto Signs Definitive Agreement to Explore Unconventional Resource Potential Mar 1, 2012 3:45:pm
Natural Gas News Russia: International Petroleum Completes Vamaro Investments Acquisition Mar 1, 2012 3:09:pm
Natural Gas News NYTimes: A Fresh Scientific Defense of the Merits of Moving from Coal to Shale Gas Feb 29, 2012 11:44:pm