The company expects to take delivery of the vessels in the fourth quarter," SFL, formerly known as Ship Finance International, said. It did not say how much it would pay for the tankers nor who the seller was. The charter period of the vessels will be for a minimum of five years with extension options, adding approximately $140 million to SFL's fixed-rate backlog. "The charterer will also have the option to develop a sale of the vessels during the charter period, subject to a profit share mechanism with SFL," SFL said.