Marathon Oil Corporation (NYSE: MRO) announced today that it sent an irrevocable notice of its intention to fully redeem its currently outstanding $500 million aggregate principal amount of 2.8% Senior Notes Due 2022 on April 29, 2021. This transaction will reduce gross debt by $500 million and annual cash interest expense by $14 million. Marathon’s stocks closed 10,4% higher at $11,79 extending their YTD gains to 76,76%.