Port of Vancouver Commissioner Jerry Oliver plans to introduce a resolution in January proposing that the commission be expanded from three members to five.“An organization such as ours needs to have a variety of opinions,” Oliver said Thursday in an interview about the proposal.Oliver said the commission’s current setup prevents conversations between two commissioners away from a formal meeting. Such a conversation would be a violation of the state Open Meetings Act.“We cannot have any conversation,” Oliver said, “other than to exchange pleasantries if we meet on the street.”The wording of the resolution has not been settled, Oliver said. While there are three methods for increasing the size, Oliver said he’ll likely seek approval of a resolution to send the matter to port district voters to decide on a ballot.He suggested the port’s approach to a possible oil terminal might have unfolded differently under a five-member commission.“What might have happened with the oil terminal if we’d said, ‘Let’s study this a little bit,’ ” Oliver said, outlining a scenario in which two commissioners could have traveled together to research the issue and returned to the full commission to report their findings.Commissioners discussed the possibility of five members during a work session at their regular meeting Tuesday.The workshop was held as a follow-up to Oliver raising the issue in January. Oliver also brought up the issue in 2009. Oliver’s term ends next year. First elected in 2007, he said he will not seek re-election.