OPEC’s revenue from exporting oil may reach $1.13 trillion in 2013, according to the federal Energy Information Administration. Members of the Organization of Petroleum Exporting Countries earned $1.03 trillion last year, a 33 percent increase from 2010, the agency said.

“Saudi Arabia earned the largest share of these earnings, $312 billion, representing 30 percent of total OPEC revenues,” the agency said.

The Energy Information Administration based the estimates on short-term energy price projections. On a per capita basis OPEC earnings reached $2,684 last year, the agency said.