From Rigzone: http://www.rigzone.com/news/article.asp?a_id=25553

Rita may have landed at Sabine Pass as a category 3 hurricane but she plowed through Gulf of Mexico offshore oilfields at a Category 5 level knocking down jackjup rigs and setting deepwater floating rigs adrift.  As storm generated seas rose to meet the US Gulf continental shelf drilling rigs and fixed production platforms were severely damaged and in some cases sunk [...] If these early reports are any indication of the total offshore facilities damage caused by Rita, natural gas and oil prices will be moving up smartly to new highs in the weeks ahead.