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 2005-05-15 4 P 0 L 45.112 22.86 A Common Stock 45.112 45.112 D Phantom Stock 2005-05-31 4 P 0 41.151 25.06 A Common Stock 41.151 86.263 D Phantom Stock 2005-06-15 4 P 0 40.205 25.65 A Common Stock 40.205 126.467 D Phantom Stock 2005-06-30 4 P 0 37.761 27.31 A Common Stock 37.761 164.228 D Phantom Stock 2005-07-15 4 P 0 37.527 27.48 A Common Stock 37.527 201.756 D Phantom Stock 2005-07-31 4 P 0 37.446 27.54 A Common Stock 37.446 239.201 D Phantom Stock 2005-08-15 4 P 0 36.312 28.4 A Common Stock 36.312 275.513 D Phantom Stock 2005-08-31 4 P 0 34.617 29.79 A Common Stock 34.617 310.130 D Phantom Stock 2005-09-15 4 P 0 34.001 30.33 A Common Stock 34.001 344.131 D Phantom Stock 2005-09-30 4 P 0 31.957 32.27 A Common Stock 31.957 376.088 D Phantom Stock 2005-10-15 4 P 0 35.365 29.16 A Common Stock 35.365 411.453 D Phantom Stock 2005-10-31 4 P 0 36.133 28.54 A Common Stock 36.133 447.586 D Phantom Stock 2005-11-15 4 P 0 32.583 31.65 A Common Stock 32.583 480.169 D Phantom Stock 2005-11-30 4 P 0 30.894 33.38 A Common Stock 30.894 511.064 D Phantom Stock 2005-12-15 4 P 0 32.257 31.97 A Common Stock 32.257 543.320 D Phantom Stock 2005-12-31 4 P 0 34.816 29.62 A Common Stock 34.816 578.136 D Phantom Stock 2006-01-15 4 P 0 32.166 32.06 A Common Stock 32.166 610.303 D Phantom Stock 2006-01-31 4 P 0 31.479 32.76 A Common Stock 31.479 641.781 D Phantom Stock 2006-02-15 4 P 0 35.820 28.79 A Common Stock 35.820 677.601 D Phantom Stock 2006-02-28 4 P 0 37.609 27.42 A Common Stock 37.609 715.211 D Phantom Stock 2006-03-15 4 P 0 38.624 26.7 A Common Stock 38.624 753.834 D Phantom Stock 2006-03-31 4 P 0 37.095 27.80 A Common Stock 37.095 790.929 D Phantom Stock 2006-04-15 4 P 0 38.856 26.54 A Common Stock 38.856 829.786 D Phantom Stock 2006-04-30 4 P 0 37.637 27.4 A Common Stock 37.637 867.423 D Phantom Stock 2006-05-15 4 P 0 45.754 25.92 A Common Stock 45.754 913.176 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