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We discuss our long-term debt in Note 6 above and Note 5 of the Notes to Consolidated Financial Statements in the Annual Report.6Note payable to Chilquinta Energía S.A. due April 1, 2011 is included in Due to Unconsolidated Affiliates, Current at March 31, 2011 and December 31, 2010.7Maturity dates are 2011-2040.8Maturity dates are 2013-2057.9Maturity dates are 2011-2049.3234FAIR VALUE MEASUREMENTS (Details) (USD $)MillionsUnKnownUnKnownUnKnownfalsetrue