. the reported amounts exclude those liabilities included in accounts payable or accrued liabilities on the consolidated balance sheet as of may 31 , 2009 . the total liability for uncertain tax positions was $ 273.9 million , excluding related interest and penalties , at may 31 , 2009 . we are not able to reasonably estimate when or if cash payments of the long-term liability for uncertain tax positions will occur . we also have the following outstanding short-term debt obligations as of may 31 , 2009