Perpetual Trustees Australia Ltd decreased its relevant interest in Novus Petroleum Limited on 11 February 2003, from 14,435,895 ordinary shares (7.86%) to 11,954,523 ordinary shares (6.51%).

Perpetual Trustees Australia Limited increased its relevant interest in Tap Oil Limited on 11 February 2003, from 10,235,077 ordinary shares (6.60%) to 13,761,477 ordinary shares (8.88%).

Infratil Limited & Infratil Australia Limited increased its relevant interest in Energy Developments Limited on 11 February 2003, from 11,490,285 ordinary shares (9.99%) to 14,790,285 ordinary shares (12.87%).