---

L.J. & J.I. CALLAGHAN PTY LTD TRENT DEVELOPMENT CORPORATION PTY LTD ILLAROO NOMINEES PROPRIETARY LIMITED GARY WOOLLEY INVESTMENTS PTY LTD PKC INVESTMENTS PTY LTD LINDWAY PTY LTD LINDWAY INVESTMENTS PTY LTD R.B.M. NOMINEES PTY LTD RETRIEVER TOWING (SYDNEY) PTY LTD W.J. FRIEND (TRADING) PTY LTD COMMERCIAL MARINE DESIGN PTY LTD ELECTROMEC INDUSTRIES PTY LTD LANTON PTY LTD KENGROVE PTY LTD WAL STANTON ENTERPRISES PTY LTD PAN PACIFIC PETROLEUM PTY LTD VIDO INVESTMENTS PTY LTD RADIO 2CH PTY. LIMITED W.H. HUDSON HOLDINGS PTY LTD HYDEX PTY LTD