Cuba's state-run company Cuba Petroleo (Cupet) on Wednesday called for the strengthening of domestic energy saving measures as the rising fuel prices on the international market created "great uncertainty."

The international situation is very uncertain and it is impossible to predict how far the prices will continue to rise, said Rafael Tenrreiro, deputy director of Cupet.

"Cuba produces 80,000 barrels of oil (per day), that accounts for 50 percent of the national consumption. Cuba continues to be an importer of oil," he said.

Cuba produced a total of 4 million tons of oil products in 2010, including 1.06 million cubic meters of gas, similar to the previous year, according to Cupet.

The island country currently receives about 100,000 barrels per day from Venezuela.

This year, foreign companies associated with Cupet will continue their extensive exploration in Cuba's exclusive economic zone in the Gulf of Mexico, said Tenrreiro.

According to official data, the potential oil reserves in Cuba are estimated at 20 billion barrels.