deepwater vessels and towing supply/supply class of vessels increased approximately 10% and 20%,  respectively, during the comparative periods. Revenues on the company’s internationally based offshore  tugs increased due to a two percentage point increase in utilization and an approximate 21% increase in  average day rates during the comparative periods, despite a decrease in the number of offshore tugs  operating internationally due to vessel dispositions. Revenues earned during fiscal 2009 on the company’s  crew/utility class of vessels were comparable to the revenues earned in fiscal 2008. Vessel revenues,  utilization percentages and average day rates by vessel class for the international segment are disclosed in  the “Vessel Class Revenues and Statistics by Segment” section of this report. International segment vessel operating costs increased approximately 19%, or $92.9 million, during fiscal  2009 as compared to fiscal 2008, primarily due to higher crew costs, repair and maintenance costs and  depreciation expense related to an increase in the number of vessels operating internationally. International  segment crew costs increased approximately 20% during the comparative years due to inflationary  increases in labor costs, the transfer of 10 vessels from the U.S. GOM and the addition of 17 newly- constructed vessels to the international segment fleet at various times during fiscal 2009. Repair and  maintenance costs increased approximately 19% during the comparative years due to an increase in the  number of scheduled drydockings performed during fiscal 2009, including several relatively expensive  drydockings performed on the newer, deepwater vessels. Depreciation expense was approximately 8%  higher during the comparative periods because vessels were transferred from the U.S. GOM to international  areas of operation and newly-constructed vessels were added to the internationally based fleet during fiscal  2009. International segment vessel operating profit increased approximately 11%, or $42.9 million, during fiscal  2009 compared to fiscal 2008, primarily due to higher revenues, which were partially offset by increases in  vessel operating costs as discussed above. United States Segment Operations . The company’s vessel revenues generated by its U.S. segment  decreased approximately 8%, or $12.9 million, during fiscal 2009 as compared to fiscal 2008, due to fewer  vessels operating in the U.S. GOM (because vessels had been transferred to international markets) and to a  four percentage point decrease in total utilization rates on the remaining U.S. segment vessels, which were  somewhat offset by an approximate 11% increase in average day rates. The company transferred  10 vessels to international markets (including two deepwater vessels) during fiscal 2009 because of a weak  U.S. GOM market. The weak macroeconomic environment in the U.S. GOM resulted in lower U.S.-based  vessel utilization during fiscal 2009 as compared to fiscal 2008. The company’s deepwater class of vessels was responsible for approximately 7%, or $0.9 million, of the  loss in revenue during fiscal 2009 as compared to fiscal 2008, because two deepwater vessels were  transferred to international markets. The company’s towing supply/supply class of vessels was responsible  for approximately 46%, or $5.9 million, of the loss in revenue during fiscal 2009 as compared to fiscal 2008,  due to an approximate five percentage point drop in utilization and the transfer of four towing-supply/supply  vessels to international markets. Average day rates, however, increased approximately 14% on the towing- supply/supply class of vessels. The company’s crew/utility class of vessels was responsible for approximately 47%, or $6.0 million, of the loss in revenue during the same comparative periods due to the  transfer of four crewboats to international markets and because of an approximate five percentage point  decrease in utilization and approximately 6% lower average day rates. Vessel revenues, utilization  percentages and average day rates by vessel class for the U.S. segment are disclosed in the “Vessel Class  Revenues and Statistics by Segment” section of this report. U.S.-based vessel operating profit increased approximately 16%, or $4.8 million, during fiscal 2009 as  compared to fiscal 2008, due to approximately 17%, or $16.8 million, lower U.S. segment vessel operating  costs (primarily crew costs, repair and maintenance costs, and insurance and loss reserves) and  approximately 8%, or $8.3 million, lower depreciation expense during the comparative periods resulting from  fewer vessels operating in the U.S. GOM market. Crew costs decreased approximately 10%, or $6.2 million,  during fiscal 2009 as compared to fiscal 2008, due to the transfer of vessels to international markets. Repair  and maintenance costs decreased approximately 24%, or $3.7 million, due to fewer drydockings performed  during fiscal 2009 and to a decrease in the average cost per drydock performed and to lower routine repair  and maintenance costs during fiscal 2009 as compared to fiscal 2008. -39- 