Question Costs of Goods Sold

[blheath]

For part of a project, I have to calculate Receivable Turnover on a corporation (ExxonMobil), but I seem to be having trouble finding out how to calculate Cost of Goods Sold. I asked a tutor how I would go about this using either the it's 10-K and annual report. She told me I wouldn't be able to find it in the annual report and I would need to look on Yahoo! Finance. I find it hard to believe, but if I could get a second opinion on this that would be great. I found the number for 2010 to be 233,751,000 on Yahoo! Finance (from the tutor) but what are the calculations I would need to get there?

 

[blheath]

Here is a link to the annual report. http://exxonmobil.com/Corporate/Files/news_pubs_sar_2010.pdf