Oregon Revised Statutes Corporations and Partnerships § 63.431

(1) An operating agreement of a limited liability company may provide for the regulation and management of the affairs of the limited liability company in any manner not inconsistent with law or the articles of organization.

(2) The power to adopt, alter, amend or repeal an operating agreement of a limited liability company shall be vested in the members of the limited liability company, or for a single member limited liability company, in the sole member of the limited liability company, unless otherwise vested in a manager or managers of the limited liability company by the articles of organization or any operating agreement.

(3) The members may amend or repeal any operating agreement even if the articles of organization or any operating agreement provide that a manager or managers may amend or repeal an operating agreement.