Compliance with obligations involved in dispute and making reasonable effort to settle as prerequisites to injunctive relief. No restraining order or injunctive relief shall be granted to any complainant who has failed to comply with any obligation imposed by law which is involved in the labor dispute in question, or who has failed to make every reasonable effort to settle such dispute, either by negotiation or with the aid of any available governmental machinery of mediation or voluntary arbitration

ORS 662.100 — under Chapter 662.