This series contains tuilities regulation files and staff reports of the Public Utilities Commission (1929-1972) pertaining to the regulation of private and municipal gas, water, and electric utilities pursuant to the Public Utilities Act. Includes petroleum regulation subject files of the B.C. Energy Commission, Westcoast Transmission Company's rate hearings and pipeline applications (1977-1979), Kitimat pipeline application (1976), records relating to natural gas pipeline applications (1959-1968) and to water power development projects on the Columbia and Peace Rivers (1953-1963), and records of the Puntledge River inquiry (1962).