---

ORIGIN ENERGY SA PTY LIMITED AMALFI INVESTMENTS PTY. LTD. BAKER HUGHES AUSTRALIA PTY. LIMITED AUSTRALIAN GAS NETWORKS (SA) LIMITED BLUE SKY TECHNICAL SERVICES PTY LIMITED THAMES & HUDSON AUSTRALIA PTY LTD COMPLETE NETWORK SOLUTIONS PTY LTD CLATHY PTY. LIMITED PARSEQ COMPUTER SYSTEMS PTY. LTD. H.C.F. AUSTRALIA PTY. LTD. BERRARA PROPERTIES PTY. LTD. MATLIN AUTO PTY. LTD. JEFLYN PTY. LTD. GREG STEVENS & ASSOCIATES PTY. LTD. MOTOR COURT SERVICES PTY. LTD. TYNCHEST PTY. LIMITED OTON INVESTMENTS PTY. LIMITED TYNON PTY. LIMITED MOLEHILL PTY. LTD. GAZE NOMINEES PROPRIETARY LIMITED