FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Mar. 31, 2014

Schedule of estimated fair value of the Partnership's long-term debt

(unaudited)	March 31, 2014		December 31, 2013
(millions of dollars)	Carrying Value	Fair Value	Carrying Value	Fair Value

Senior Credit Facility due 2017	370	370	380	380
Term Loan Facility due 2018	500	500	500	500
4.65% Senior Notes due 2021	349	361	349	353
5.09% Unsecured Senior Notes due 2015	75	79	75	79
5.29% Unsecured Senior Notes due 2020	100	115	100	106
5.69% Unsecured Senior Notes due 2035	150	167	150	154
3.82% Series D Senior Notes due 2017	24	25	24	25
	1,568	1,617	1,578	1,597

- Definition

Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.

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