X0202 4 2006-07-06 0 0001030749 GULFMARK OFFSHORE INC GMRK 0000806085 LEHMAN BROTHERS HOLDINGS INC 745 SEVENTH AVENUE NEW YORK NY 10019 0 0 1 0 Common Stock 2006-07-06 4 P 0 2352 26.89 A 2194866 I See footnote This form is a joint filing with Lehman Brothers Inc. ("LBI"), a wholly-owned subsidiary of the Reporting Person and a broker-dealer registered under Section 15 of the 1934 Act. LBI is the actual owner of the shares purchased as reported herein. JOINT FILER INFORMATION Title of Security: Common Stock Issuer & Ticker Symbol: Gulfmark Offshore Inc. (GMRK) Designated Filer: Lehman Brothers Holdings Inc. Other Joint Filer: Lehman Brothers Inc. 745 Seventh Avenue New York, New York 10019 Date of Event Requiring Statement: July 6, 2006 Signature on behalf of other above filer: /s/ Barrett S. DiPaolo, Senior Vice President /s/ Barrett S. DiPaolo 2006-07-07