on january 21 , 2016 , the board approved a new $ 10 billion share repurchase program for schlumberger common stock . this new program will take effect once the remaining $ 1.4 billion authorized to be repurchased under the july 18 , 2013 program is exhausted . 2022 net cash provided by operating activities was $ 8.8 billion in 2015 , $ 11.2 billion in 2014 and $ 10.7 billion in 2013