X0306 4 2016-02-20 0001163739 NABORS INDUSTRIES LTD NBR 0001334321 Restrepo William J C/O NABORS CORPORATE SERVICES, INC. 515 W. GREENS RD., SUITE 1200 HOUSTON TX 77067 1 Chief Financial Officer Common Stock 2016-02-20 4 F 0 5278 6.88 D 636516 D Reflects the number of shares surrendered to satisfy the tax withholding on the vesting of 17,863 shares of restricted stock on February 20, 2016. The remaining shares were retained by the executive. /s/ Mark D. Andrews by Power of Attorney for William Restrepo 2016-02-23