Natural Gas News Reuters: Ukraine shale talks cannot run on indefinitely - Chevron Feb 19, 2013 11:26:pm
Natural Gas News ITAR-TASS: Shale gas production in Ukraine can cause irreparable damage to environment Feb 13, 2013 6:27:pm
Natural Gas News RIA Novosti: US to Share with Ukraine Shale Gas Production Technologies Feb 6, 2013 7:19:am
