Cuba claims massive oil reserves

The state-owned Cuban oil company says the country may have more than 20bn barrels of oil in its offshore fields - more than double the previous estimate.

Cubapetroleo's exploration manager said drilling in the offshore wells would begin as early as the middle of 2009.

Such reserves would place Cuba among the top 20 oil producing nations.

Cubapetroleo's estimates are based on comparisons to known oil reserves found within similar geological structures off the coasts of the US and Mexico.

The company said Cuba had undersea geology "very similar" to that surrounding Mexico's giant Cantarell and Poza Rica oil fields in the Bay of Campeche.