Bolivia's natural gas exports to Brazil and Argentina are back to normal following planned repairs to a pipeline that was damaged by flooding in April, state oil company YPFB said on Tuesday.

Due to the repair work on the pipeline in the southern Bolivian province of Tarija, natural gas shipments to Brazil and Argentina had been reduced since early November.

"From today onward the exports of (natural) gas to Brazil and Argentina are back to normal," a YPFB statement said.

The flood damaged pipelines operated by Brazilian state oil company Petrobras and a Bolivian pipeline that supplies natural gas for the local market.

Brazil has a contract to buy up to 30 million cubic meters per day of natural gas from Bolivia, while Argentina buys a maximum of 7.7 million cubic meters per day.

Bolivia has the second biggest natural gas reserves in South America after Venezuela and the leftist government of President Evo Morales has taken greater control of the energy industry in a nationalization process.