(2) Within 10 days after issuance of the formation order, the number of commissioners named in the petition for formation who received the highest vote at the election for formation shall meet and organize, first taking and subscribing an oath of office to the effect that they will support the Constitutions of the United States and of this state and the laws thereof, and will discharge faithfully the duties of commissioner to the best of their ability. They shall determine by lot the length of term each shall hold office as follows:
(a) If there is an odd number of commissioners, a majority shall have a term expiring June 30 following the first regular district election after formation of the district and a minority shall have a term expiring June 30 following the second regular district election.
(b) If there is an even number of commissioners, the commissioners shall be divided into two equal groups as to terms. One group shall have a term expiring June 30 following the first regular district election after the formation election and the other group shall have a term expiring June 30 following the second regular district election.
(3) The board of commissioners shall fill any vacancy on the board as provided in ORS 198.320. [1969 c.698 §29; 1971 c.727 §179; 1973 c.796 §71; 1975 c.647 §48; 1983 c.83 §103; 1983 c.350 §312; 1983 c.740 §218]