On December 1, 2015, Schlumberger announced that it will further reduce its workforce. The number of cuts was not specified in the SEC filing, but the company said that the layoffs are in light of expected reduced activity for 2016 and to streamline its support structure.
http://247wallst.com/energy-business/2015/12/01/schlumberger-outlines-more-layoffs-ahead-of-cameron-merger/#ixzz3t6C4TX9Q