X0303 5 2008-12-31 0 0 1 0001030749 GULFMARK OFFSHORE INC GLF 0001243590 OCONNELL ROBERT T X1 1 0 0 0 Phantom Stock 2006-06-30 4 P 0 L 166.957 25.83 A Common Stock 166.957 166.957 D Phantom Stock 2006-08-15 4 P 0 L 54.416 31.68 A Common Stock 54.416 221.373 D Phantom Stock 2006-10-15 4 P 0 L 379.240 32.85 A Common Stock 379.240 600.613 D Phantom Stock 2006-11-15 4 P 0 L 49.957 38.01 A Common Stock 49.957 650.570 D Phantom Stock 2006-11-15 4 P 0 L 45.383 38.01 A Common Stock 45.383 695.953 D Phantom Stock 2006-12-31 4 P 0 L 89.610 37.41 A Common Stock 89.610 785.563 D Phantom Stock 2007-01-15 4 P 0 L 230.553 33.580 A Common Stock 230.553 1016.116 D Phantom Stock 2007-01-31 4 P 0 L 47.770 36.110 A Common Stock 47.770 1063.886 D Phantom Stock 2007-02-28 4 P 0 L 130.814 39.560 A Common Stock 130.814 1194.700 D Phantom Stock 2007-03-31 4 P 0 L 276.634 43.650 A Common Stock 276.634 1471.334 D Phantom Stock 2007-05-15 4 P 0 L 68.643 50.260 A Common Stock 68.643 1539.977 D Phantom Stock 2007-06-30 4 P 0 L 168.391 51.220 A Common Stock 168.391 1708.368 D Phantom Stock 2007-07-31 4 P 0 L 73.436 46.980 A Common Stock 73.436 1781.804 D Phantom Stock 2007-09-15 4 P 0 L 75.164 45.900 A Common Stock 75.164 1856.968 D Phantom Stock 2007-09-30 4 P 0 L 177.250 48.660 A Common Stock 177.250 2034.218 D Phantom Stock 2007-10-31 4 P 0 L 37.033 46.580 A Common Stock 37.033 2071.251 D Phantom Stock 2007-11-30 4 P 0 L 77.633 44.440 A Common Stock 77.633 2148.884 D Phantom Stock 2007-12-31 4 P 0 L 184.333 46.790 A Common Stock 184.333 2333.217 D Phantom Stock 2008-02-29 4 P 0 L 68.101 50.660 A Common Stock 68.101 2401.318 D Phantom Stock 2008-03-31 4 P 0 L 189.145 54.720 A Common Stock 189.145 2590.463 D Phantom Stock 2008-04-30 4 P 0 L 57.692 59.800 A Common Stock 57.692 2648.155 D Phantom Stock 2008-05-15 4 P 0 L 55.708 61.930 A Common Stock 55.708 2703.863 D Phantom Stock 2008-05-31 4 P 0 L 25.697 67.130 A Common Stock 25.697 2729.560 D Phantom Stock 2008-06-30 4 P 0 L 172.954 58.180 A Common Stock 172.954 2902.514 D Phantom Stock 2008-07-31 4 P 0 L 34.376 50.180 A Common Stock 34.376 2936.890 D On reviewing the Section 16 reporting requirements relating to GulfMark Offshore, Inc.'s Executive Nonqualified Excess Plan, it was determined that the phantom stock units created by the deferral of compensation by both officers and directors should have been reported as a derivative security by the officer/director once the phantom stock unit was allocated to his account. This filing reports all transactions related to the phantom stock units in the plan allocated to the individual from his point of entry into the plan through March 31, 2009. Each phantom stock unit is the economic equivalent of one share of common stock. Subject to the provisions of the plan, the phantom stock units become payable only in common stock upon the officer/director's termination of service." /s/ Robert T. O'Connell 2009-04-16