(1) The commission, its employees, or authorized agents, have the power to investigate all methods and practices of pipeline owners and operators; to require the maintenance and filing of reports, records and other information in the form and detail as the commission may prescribe; to enter upon and to inspect the property, buildings, plants, and offices of pipeline owners and operators; and to inspect books, records, papers and documents relevant to enforcement responsibilities under the NGPSA.

(2) The commission, a staff member thereof, or some person appointed by it, may investigate and make inquiry into every incident occurring in the operation of any intrastate gas pipeline located in this state. The commission, in its discretion, may also investigate any other accident or event involving the operation of a pipeline.