X0306 4 2019-02-22 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 2019-02-22 4 A 0 413947 0 A 2039155 D These Performance shares were earned and granted to Mr. Restrepo pursuant to his employment agreement based on the achievement of certain objectives for the year 2018, as determined on February 22, 2019, by the Compensation Committee. The Performance shares are scheduled to vest in three (3) equal annual installments beginning on the first anniversary of the date of grant. /s/ Mark D. Andrews by Power of Attorney for William Restrepo 2019-02-26