It added that gas reserves in the country also rose to more than 150 trillion cubic feet last year. According to the ministry, Venezuela's oil and gas reserves will guarantee a reliable supply of non-renewable natural resources to Venezuela's customers. Venezuela is the world's fifth largest oil exporter. Oil exports account for nearly half of the government revenues. Venezuela is a key crude supplier to the United States, providing the latter with 1.5 million barrels per day. President Hugo Chavez has repeatedly said Venezuela has a "strong oil card" to play against the United States, which Caracas accused of being involved in a failed coup in April 2002. PIN/ Xinhua