UPDATE 1-Venezuela says refinery complex back to normal

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CARACAS, Jan 19 (Reuters) - Venezuela's largest refinery complex, the Cardon-Amuay plant, has resumed normal operations after two power failures took units offline in recent weeks, the state oil company said in a statement on Saturday.

The refineries, Amuay and Cardon, make up the complex known as Paraguana, one of the world's largest centers for exporting crude and products with a capacity to process more than 900,000 barrels a day.

The 640,000-bpd Amuay refinery began its restart on Thursday after an electrical failure took several units offline last weekend.

On Saturday, the state company PDVSA said the refinery's crude processing operations were fully back online.

PDVSA also began last week to bring back online its Cardon facility after a December power outage.

"PDVSA also affirms complete normality in the Cardon refinery's operations," the Saturday statement said.

Venezuela, the fourth-largest exporter of oil to the United States, has experienced a string of refinery outages over the past two years.

The OPEC country's product exports to the United States, its principal client, fell 23 percent in the first 10 months of 2007, while finished motor gasoline exports tumbled 62 percent in the same period. (Reporting by Deisy Buitrago; Writing by Saul Hudson; Editing by Peter Cooney)