Oregon Revised Statutes Counties and County Officers § 204.017

(1) In all proceedings for the nomination or election of candidates for or to the office of county commissioner in each county having a board of county commissioners, every petition for nomination, declaration of candidacy, certificate of nomination or election, ballot or other document used in connection with the nomination or election shall state the position number of the office to which the candidate aspires, and the name of the candidate shall appear on the ballot only for the designated position.

(2) Each elector shall have the right to vote for only one candidate for each position on the board, and the candidate for each position receiving the highest number of votes for such position shall be considered nominated or elected, as the case may be.