shell makes $3billion approach for arrow, page-27

Perhaps this explains Shells offer:

Shell CEO Admits Peak Oil Could be Here in 7 Years
by Jeremy Elton Jacquot, Los Angeles on 01.26.08

'Regardless of which route we choose, the world's current predicament limits our maneuvering room. We are experiencing a step-change in the growth rate of energy demand due to population growth and economic development, and Shell estimates that after 2015 supplies of easy-to-access oil and gas will no longer keep up with demand."'

http://www.treehugger.com/files/2008/01/shell_ceo_peak_oil.php