Gas Supply Agreement

Centrica PLC July 16, 2007 Centrica announces termination of gas supply contract Centrica plc today announced that it has agreed with Asean LNG Trading Company, a subsidiary of Petronas, to terminate the 15 year liquefied natural gas (LNG) supply agreement between Petronas and Centrica with immediate effect due to certain conditions precedent in the contract not having been satisfied. Centrica and Petronas continue to seek ways in which the two companies can work closely together in the future. Notes to Editors The contract was signed in August 2004 for an average annual volume of 3 billion cubic metres (bcm), with lower volumes in the early years, with expected delivery through the Dragon LNG terminal at Milford Haven. Enquires: Centrica Media Relations +44 (0) 1753 494 085 Centrica Investor Relations +44 (0) 1753 494 900

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