Based on projections from the EIA October 2009 Short-Term Energy Outlook
(STEO), members of the Organization of the Petroleum Exporting Countries
(OPEC) could earn $558 billion of net oil export revenues in 2009 and
$686 billion in 2010:

http://www.eia.doe.gov/emeu/cabs/OPEC_Reve.../Factsheet.html

Last year, OPEC earned $971 billion in net oil export revenues, a 42
percent increase from 2007. Saudi Arabia earned the largest share of
these earnings, $288 billion, representing 30 percent of total OPEC
revenues. On a per-capita basis, OPEC net oil export earning reached
$2,688 in 2008, a 40 percent increase from 2007.