Dated 1 April 2008 THE ROYAL BANK OF SCOTLAND plc and SEMPRA COMMODITIES, INC. and SEMPRA ENERGY HOLDINGS VII B.V. and RBS SEMPRA COMMODITIES LLP and SEMPRA ENERGY (solely for the purposes of Clauses 13.1, 15.1, 15.2, 17,18.15 and 19.2) LIMITED...