Financial results and summary

  2013 2012 Change
Sales revenue ($m) 2,647 2,344 13%
Gross profit ($m) 1,440 1,345 7%
Operating profit ($m) 381 1,185 -68%
Profit before tax ($m) 313 1,116 -72%
Profit after tax ($m) 216 666 -68%
Basic earnings per share (cents) 18.6 68.8 -73%
Full year dividend per share (pence) 12.0 12.0 0%
Operating cash flow before working capital ($m) 1,901 1,777 7%
Working interest production (boepd) 84,200 79,200 6%
Realised oil price per barrel ($) 105.7 108.0 -2%
Realised gas price per therm (pence) 65.6 58.5 12%