The Commission may, from time to time, adopt or promulgate, such orders, rules, regulations or requirements, relative to investigations, inspections, tests, audits, and valuations of the plants and properties relative to inspection and tests of meters as in its judgment may be necessary and proper; provided, that under the provisions of this act, any public utility, corporation, association, company, individual, their trustees, lessees or receivers, successors, or assigns, may appeal from any order or finding or judgment of the Corporation Commission as provided by law in cases tried and heard before said Commission of transportation and transmission companies.
Okla. Stat. tit. 17, § 155