TIDEWATER INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Years ended March 31, 2010, 2009, and 2008  The following table discloses the amount of revenue in dollars for the company’s International and United  States segments, and in total for the worldwide fleet, along with the respective percentage of vessel  revenue: For fiscal 2010, 2009 and 2008, Chevron Corporation (including its worldwide subsidiaries and affiliates)  accounted for 18.3%, 19.1% and 16.3%, respectively, of total revenues while Petroleo Brasileiro SA  accounted for 13.1%, 10.1% and 10.5% of total revenues, respectively.  Revenue by vessel class:  % of Vessel  % of Vessel  % of Vessel  (In thousands): 2010 Revenue  2009 Revenue 2008 Revenue International-based fleet: Deepwater vessels $ 306,763 27% 267,219 20% 240,815 20% Towing-supply/supply  616,240 54% 769,296 57% 649,788 53% Crew/utility  87,303 8% 103,850 8% 104,222 9% Offshore tugs 37,680  3%  61,974  5%  55,325  5%  Other 567 <1% 7,087 1% 5,189 <1% Total $  1,048,553 92% 1,209,426 89% 1,055,339 87% United States-based fleet: Deepwater vessels $ 55,725 5% 58,644 4% 59,562 5% Towing-supply/supply  30,778 3% 70,006 5% 75,938 6% Crew/utility 3,106 <1% 18,246 1% 24,295 2% Total $  89,609 8% 146,896 11% 159,795 13% Worldwide fleet: Deepwater vessels $ 362,488 32% 325,863 24% 300,377 25% Towing-supply/supply  647,018 57% 839,302 62% 725,726 60% Crew/utility 90,409 8% 122,096 9% 128,517 11% Offshore tugs 37,680 3% 61,974 5% 55,325 5%% Other  567 <1% 7,087 1% 5,189 <1% Total $ 1,138,162 100% 1,356,322 100% 1,215,134 100% F-41