Saudi Arabia's nominal gross domestic product (GDP) reached SR2,163 billion ($576.8 billion) in 2011, up 28 percent from 2010, data from the Central Department of Statistics and Information showed on Wednesday.

The figure compares with the GDP of SR1,690.5 billion achieved in 2010.

Oil accounted for SR1,229. 1 billion, the data said, comapred to SR872.1 billion in 2010.

Meanwhile, Saudi Arabia produced around 9.87 million barrels per day (bpd) of oil in January, about 70,000 bpd more than it pumped in December, an industry source familiar with the matter told Reuters.

'Demand continues to remain strong from Asia,' said the industry source.

China, the world's second-largest oil consumer has been drawing heavily on Saudi Arabia as it scours the globe for alternative oil supplies to replace a fall in its imports from Iran.

Out of the 9.87 million bpd of production, around 9.4 million bpd was supplied to the market, the source said.

With the kingdom's domestic oil demand around 2 million bpd in January, this would leave exports of around 7.4 million bpd last month.

In December, Saudi Arabia produced around 9.80 million bpd, of which around 7.50 million was exported. In November, it pumped 10.05 million bpd and exported 7.80 million bpd, according to Saudi government data. - Reuters