ORS § 545.059
The secretary of the board of directors shall cause notice of the filing of the petition to be given and published once each week, for three successive weeks, in a newspaper published in the county where the office of the board is situated. The notice shall state the filing of the petition, the names of the petitioners, a description of the lands mentioned in the petition, and the request of the petitioners. The notice shall also contain a statement indicating that all interested persons may appear at the office of the board at the time named in the notice and show cause why the petition should not be granted. The time specified in the notice shall be the time of the next regular meeting of the board after the expiration of the time for publication of the notice. However, before the secretary of the board is required to give notice, the petitioners must advance to the secretary sufficient money to pay the estimated cost of all proceedings under the petition.
ORS 545.059