Petroleos de Venezuela SA , the Latin American nation’s state-owned crude producer, said the U.S. oil refining and marketing assets it’s seeking to sell are worth more than $10 billion. “Their value is much, much more,” Rafael Ramirez , president of the oil producer known as PDVSA, told reporters yesterday. He said the company is receiving offers for assets of Houston-based Citgo Petroleum Corp., without providing details on the value of the bids. Citgo owns three refineries capable of handling about 749,000 barrels a day in Louisiana , Texas and Illinois . It also operates the sixth-largest U.S. retail gasoline chain through about 5,900 branded stations, according to the Arlington, Virginia-based National Association of Convenience Stores. Argus Media reported July 24 that the government has received offers in the range of $10 billion to $15 billion for the assets. “We are not a refining company, we’re an oil-producing company,” […]