Marathon Oil Announces STACK Acquisition Houston, June 20, 2016 (GLOBE NEWSWIRE) -- Marathon Oil Corporation (NYSE:MRO) today announced the signing of a definitive purchase and sale agreement to acquire PayRock Energy Holdings, LLC...

Marathon Oil Adds Significant Unconventional Resource, Positions for Further Acceleration HOUSTON, Sept. 3, 2014 (GLOBE NEWSWIRE) -- Marathon Oil Corporation (NYSE: MRO) President and CEO Lee M. Tillman, speaking at the Barclays CEO Energy-Power Conference in New York today, provided...