X0303 5 2008-12-31 0 0 1 0001030749 GULFMARK OFFSHORE INC GLF 0001452077 Rubio Samuel R X1 0 1 0 0 Controller & CAO Phantom Stock 2006-05-31 4 P 0 L 47.136 25.16 A Common Stock 47.136 960.312 D Phantom Stock 2006-06-08 4 P 0 239.074 25.18 A Common Stock 239.074 1199.386 D Phantom Stock 2006-06-30 4 P 0 46.362 25.83 A Common Stock 46.362 1245.748 D Phantom Stock 2006-06-30 4 P 0 45.913 25.83 A Common Stock 45.913 1291.661 D Phantom Stock 2006-07-15 4 P 0 46.253 25.64 A Common Stock 46.253 1337.914 D Phantom Stock 2006-07-31 4 P 0 37.411 31.7 A Common Stock 37.411 1375.326 D Phantom Stock 2006-08-15 4 P 0 37.435 31.68 A Common Stock 37.435 1412.761 D Phantom Stock 2006-08-31 4 P 0 39.075 30.35 A Common Stock 39.075 1451.836 D Phantom Stock 2006-09-15 4 P 0 40.559 29.24 A Common Stock 40.559 1492.395 D Phantom Stock 2006-09-30 4 P 0 37.247 31.84 A Common Stock 37.247 1529.641 D Phantom Stock 2006-10-15 4 P 0 36.102 32.85 A Common Stock 36.102 1565.743 D Phantom Stock 2006-10-31 4 P 0 34.345 34.53 A Common Stock 34.345 1600.088 D Phantom Stock 2006-11-15 4 P 0 31.201 38.01 A Common Stock 31.201 1631.289 D Phantom Stock 2006-11-30 4 P 0 29.450 40.27 A Common Stock 29.450 1660.738 D Phantom Stock 2006-12-15 4 P 0 30.804 38.50 A Common Stock 30.804 1691.542 D Phantom Stock 2006-12-31 4 P 0 31.701 37.41 A Common Stock 31.701 1723.243 D Phantom Stock 2007-01-15 4 P 0 35.317 33.580 A Common Stock 35.317 1758.560 D Phantom Stock 2007-01-31 4 P 0 32.842 36.110 A Common Stock 32.842 1791.402 D Phantom Stock 2007-02-15 4 P 0 32.165 36.870 A Common Stock 32.165 1823.567 D Phantom Stock 2007-02-28 4 P 0 29.978 39.560 A Common Stock 29.978 1853.545 D Phantom Stock 2007-03-15 4 P 0 28.584 41.490 A Common Stock 28.584 1882.129 D Phantom Stock 2007-03-31 4 P 0 27.169 43.650 A Common Stock 27.169 1909.298 D Phantom Stock 2007-04-15 4 P 0 25.249 46.970 A Common Stock 25.249 1934.547 D Phantom Stock 2007-04-17 4 P 0 341.420 46.680 A Common Stock 341.420 2275.967 D Phantom Stock 2007-04-30 4 P 0 24.758 47.900 A Common Stock 24.758 2300.725 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/ Samuel Rubio 2009-04-16