X0303 5 2008-09-15 0 0 1 0001030749 GULFMARK OFFSHORE INC GLF 0001243590 OCONNELL ROBERT T X1 1 0 0 0 Phantom Stock 2008-09-15 4 P 0 L 77.861 44.31 A Common Stock 77.861 3014.751 D Phantom Stock 2008-09-30 4 P 0 L 224.209 44.880 A Common Stock 224.209 3238.960 D Phantom Stock 2008-10-31 4 P 0 L 46.622 37.000 A Common Stock 46.622 3285.582 D Phantom Stock 2008-12-15 4 P 0 L 140.932 24.480 A Common Stock 140.932 3426.514 D Phantom Stock 2008-12-31 4 P 0 L 422.971 23.790 A Common Stock 422.971 3849.485 D Phantom Stock 2009-02-28 4 P 0 L 32.312 20.890 A Common Stock 32.312 3881.797 D Phantom Stock 2008-03-31 4 P 0 L 110.803 23.860 A Common Stock 110.803 3992.600 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