Oregon Revised Statutes Cities § 222.125

The legislative body of a city need not call or hold an election in the city or in any contiguous territory proposed to be annexed or hold the hearing otherwise required under ORS 222.120 when all of the owners of land in that territory and not less than 50 percent of the electors, if any, residing in the territory consent in writing to the annexation of the land in the territory and file a statement of their consent with the legislative body. Upon receiving written consent to annexation by owners and electors under this section, the legislative body of the city, by resolution or ordinance, may set the final boundaries of the area to be annexed by a legal description and proclaim the annexation.