X0303 5 2008-12-31 0 0 1 0001030749 GULFMARK OFFSHORE INC GLF 0001188799 BUTTERS DAVID J X1 1 0 0 0 Phantom Stock 2001-04-12 4 P 0 L 85.68 30.09 A Common Stock 85.68 85.68 D Phantom Stock 2009-05-01 4 P 0 L 61.458 36 A Common Stock 61.458 147.138 D Phantom Stock 2001-04-16 4 P 0 L 6.164 36.5 A Common Stock 6.164 153.302 D Phantom Stock 2001-06-01 4 P 0 L 59.615 39 A Common Stock 59.615 212.917 D Phantom Stock 2001-06-29 4 P 0 L 85.908 30.01 A Common Stock 85.908 298.825 D Phantom Stock 2001-07-31 4 P 0 L 67.935 27.6 A Common Stock 67.935 366.76 D Phantom Stock 2001-08-31 4 P 0 L 58.851 31.860 A Common Stock 58.851 425.611 D Phantom Stock 2007-09-30 4 P 0 L 107.421 24 A Common Stock 107.421 533.032 D Phantom Stock 2007-10-15 4 P 0 L 7.794 28.870 A Common Stock 7.794 540.826 D Phantom Stock 2001-10-31 4 P 0 L 68.843 28.870 A Common Stock 68.843 609.669 D Phantom Stock 2001-11-30 4 P 0 L 75.758 24.750 A Common Stock 75.758 685.427 D Phantom Stock 2001-12-15 4 P 0 L 12.385 27.250 A Common Stock 12.385 697.812 D Phantom Stock 2001-12-31 4 P 0 L 96.900 27.767 A Common Stock 96.900 794.712 D Phantom Stock 2002-01-31 4 P 0 L 70.225 26.7 A Common Stock 70.225 864.937 D Phantom Stock 2002-02-28 4 P 0 L 67.119 34.640 A Common Stock 67.119 932.056 D Phantom Stock 2002-03-31 4 P 0 L 71.356 36.130 A Common Stock 71.356 1003.412 D Phantom Stock 2002-04-30 4 P 0 L 7.595 44.440 A Common Stock 7.595 1011.007 D Phantom Stock 2002-05-15 4 P 0 L 43.353 43.250 A Common Stock 43.353 1054.360 D Phantom Stock 2002-05-31 4 P 0 L 52.256 42.340 A Common Stock 52.256 1106.616 D Phantom Stock 2002-06-30 4 P 0 L 67.692 41.410 A Common Stock 67.692 1174.308 D Phantom Stock 2002-07-31 4 P 0 L 1341.906 12.530 A Common Stock 1341.906 2516.214 D Phantom Stock 2002-08-31 4 P 0 L 112.545 16.660 A Common Stock 112.545 2628.759 D Phantom Stock 2002-09-30 4 P 0 L 162.027 17.300 A Common Stock 162.027 2790.786 D Phantom Stock 2002-10-31 4 P 0 L 144.608 15.300 A Common Stock 144.608 2935.394 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/ David J. Butters 2009-04-16