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Revenues and operating profit derived from International and United States marine operations and total marine assets for the International and United States segment for each of the fiscal years ended March 31 are summarized below: 

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Please refer to Item 7 of this report and Note 13 of Notes to Consolidated Financial Statements included in Item 8 of this report for further discussion of segment revenues, operating profit, and total asset by geographical areas in which the company operates. 

## Our Global Vessel Fleet 

In calendar year 2000, the company embarked on a significant vessel construction and acquisition program. This program facilitated the company’s entrance into deepwater markets around the world and allowed the company to begin replacing its then existing fleet with fewer, larger, and more technologically sophisticated vessels. The vessel construction, acquisition and expansion program was initiated with the intent of strengthening the company’s presence in all major oil and gas producing regions of the world through the replacement of aging vessels in the company’s fleet. During this decade, the company purchased and/or constructed 185 vessels for approximately $2.4 billion. To date, the company has funded all of its vessel commitment programs from its available cash, operating cash flow, and funds provided by the private placement of $300.0 million in senior unsecured notes, revolving credit facilities, and various leasing arrangements. 

The company’s strategy contemplates organic growth through the construction of vessels at a variety of shipyards worldwide and possible acquisitions of vessels and/or other owners and operators of offshore supply vessels. The company has the largest number of new vessels among its competitors in the industry, and it also has the largest fleet of older vessels in the industry. Management regularly evaluates alternatives for its older fleet. The company intends to pursue its long-term fleet replenishment and modernization strategy on a disciplined basis and, in each case, will carefully consider whether proposed investments and transactions have the appropriate risk/reward profile. 

The average age of the company's 377 owned or chartered vessel fleet (including stacked vessels but excluding joint-venture vessels and vessels withdrawn from service) at March 31, 2010 was approximately 17.8 years. The average age of the 170 vessels that the company acquired or constructed since calendar year 2000 as part of its new build and acquisition program was approximately 5.4 years. The remaining 207 vessels have an average age of 28.0 years. Of the company’s 377 vessels, 58 are deepwater class vessels, 224 are in the towing-supply/supply class vessels, 68 are crew/utility class vessels and 27 are offshore tugs. 

At March 31, 2010, the company had commitments to acquire five vessels and build 31 vessels at a number of different shipyards around the world (one of which is being constructed in the United States by the 

