Marathon Oil (MRO -4.3%) shares slide after Q1 earnings missed estimates, tumbling 58% from a...

|About: Marathon Oil Corporation (MRO)|By:, SA News Editor

Marathon Oil (MRO -4.3%) shares slide after Q1 earnings missed estimates, tumbling 58% from a year-earlier period that included contributions from its former refining and marketing business, and as the E&P company posted lower sales volumes. MRO increased its forecast for 2012 capex spending to $5B from its prior estimate of $4.8B.