Standard & Poor's Canadian index operations have made index changes as a result of the quarterly S&P/TSX Composite Index review. These changes will be effective at the open on Monday, March 19, 2012.

       S&P/TSX COMPOSITE INDEX ADDITION

Issue name               Symbol   60/Completion

Gibson Energy Inc.          GEI      Completion 

Changes to the S&P/TSX Composite Index will also affect the S&P/TSX Capped Composite Index and the S&P/TSX Composite Equal Weight Index. Stocks added to or removed from the S&P/TSX Composite Index will also be added to or removed from the appropriate global industry classification standard (GICS) sector index.

S&P/TSX COMPOSITE DIVIDEND 
    INDEX, MARCH, 2012,
QUARTERLY REVIEW, ADDITION

Issue name          Symbol

Gibson Energy          GEI

     S&P/TSX EQUITY INCOME 
      INDEX, MARCH, 2012, 
  QUARTERLY REVIEW, ADDITION

Issue name                Symbol

Gibson Energy                GEI

Company additions to and deletions from an S&P equity index do not in any way reflect an opinion on the investment merits of the company.