The operator shall give prompt notice to the Agency of any and all accidents, including injuries to persons and damage to property occurring on property of the city or other public property arising out of or incidental to any oil production operations of the operator, except that such notice shall not be required of injuries sustained by employees of the operator, while acting in the course and scope of their employment and who are subject to and covered by the provisions of the State Workmen’s Compensation Insurance and Safety Act.
(`78 Code, § 14.20.070.)