. as of december 31 , 2014 , devon 2019s commercial paper borrowings of $ 932 million have a weighted- average borrowing rate of 0.44 percent . retirement of senior notes on november 13 , 2014 , devon redeemed $ 1.9 billion of senior notes prior to their scheduled maturity , primarily with proceeds received from its asset divestitures . the redemption includes the 2.4% ( 2.4 % ) $ 500 million senior notes due 2016 , the 1.2% ( 1.2 % ) $ 650 million senior notes due 2016 and the 1.875% ( 1