X0306 5 2016-01-15 0 0 0001030749 GULFMARK OFFSHORE INC GLF 0001488598 Darling David E 842 W. SAM HOUSTON PARKWAY N. STE 400 HOUSTON TX 77024 1 SVP - CHRO Phantom Stock 2016-01-15 5 A 0 784.51 2.82 A Common Stock 784.51 21085.30 D Phantom Stock 2016-01-29 5 A 0 583.73 3.79 A Common Stock 583.73 21669.03 D Phantom Stock 2016-02-12 5 A 0 720.63 3.07 A Common Stock 720.63 22389.66 D Phantom Stock 2016-02-29 5 A 0 616.25 3.59 A Common Stock 616.25 23005.91 D Phantom Stock 2016-03-15 5 A 0 340.88 6.49 A Common Stock 340.88 23346.79 D Phantom Stock 2016-03-31 5 A 0 358.56 6.17 A Common Stock 358.56 23705.35 D Phantom Stock 2016-04-15 5 A 0 415.85 5.32 A Common Stock 415.85 24121.20 D Phantom Stock 2016-04-29 5 A 0 326.30 6.78 A Common Stock 326.30 24447.50 D Phantom Stock 2016-05-13 5 A 0 475.77 4.65 A Common Stock 475.77 24923.27 D Phantom Stock 2016-05-31 5 A 0 682.81 3.24 A Common Stock 682.81 25606.08 D Phantom Stock 2016-06-15 5 A 0 597.92 3.70 A Common Stock 597.92 26204 D Phantom Stock 2016-06-30 5 A 0 706.81 3.13 A Common Stock 706.81 26910.81 D Phantom Stock 2016-07-15 5 A 0 646.88 3.42 A Common Stock 646.88 27557.69 D Phantom Stock 2016-07-29 5 A 0 762.87 2.90 A Common Stock 762.87 28320.56 D Phantom Stock 2016-08-15 5 A 0 831.70 2.66 A Common Stock 831.70 29152.26 D Phantom Stock 2016-08-31 5 A 0 1028.99 2.15 A Common Stock 1028.99 30181.25 D Phantom Stock 2016-09-15 5 A 0 1128.73 1.96 A Common Stock 1128.73 31309.98 D Phantom Stock 2016-09-30 5 A 0 1316.86 1.68 A Common Stock 1316.86 32626.84 D Phantom Stock 2016-10-14 5 A 0 1474.88 1.50 A Common Stock 1474.88 34101.72 D Phantom Stock 2016-10-31 5 A 0 1923.76 1.15 A Common Stock 1923.76 36025.48 D Phantom Stock 2016-11-15 5 A 0 1638.76 1.35 A Common Stock 1638.76 37664.24 D Phantom Stock 2016-11-30 5 A 0 1769.86 1.25 A Common Stock 1769.86 39434.10 D Phantom Stock 2016-12-15 5 A 0 1348.98 1.64 A Common Stock 1348.98 40783.08 D Phantom Stock 2016-12-30 5 A 0 1264.18 1.75 A Common Stock 1264.18 42047.26 D Phantom Stock units credited under the Company's Executive Nonqualified Excess Plan (the "Plan"). Participants are always 100% vested in their contributions to the Plan. Employer contributions vest according to the provision of the Plan, which is generally based on years of service (20% per year of credited service). A participant is 100% vested after 5 years of credited service. /s/ David E. Darling 2017-01-12