This excerpt taken from the MRO 10-Q filed May 9, 2005.
At March 31, 2005, Marathon had no borrowings against its $1.5 billion long-term revolving credit facility and no commercial paper outstanding under its U.S. commercial paper program that is backed by the long-term revolving credit facility. Certain banks provide Marathon with uncommitted short-term lines of credit totaling $200 million. At March 31, 2005, there were no borrowings against these facilities.
MAP has a $500 million long-term revolving credit facility that terminates in May 2009. At March 31, 2005, there were no borrowings against this facility.
At March 31, 2005, in the event of a change in control of Marathon, debt obligations totaling $1.578 billion may be declared immediately due and payable. In such event, Marathon may also be required to either repurchase certain equipment at United States Steels Fairfield Works for $88 million or provide a letter of credit to secure the remaining obligation.