This series contains correspondence relating to petroleum leases. The records consists of enquiries relating to oil lands in British Columbia (1940-1943), a general file on oil lands (1940-1956), and correspondence files on petroleum leases in Block 4593, Kootenay District, held by Borden Oil Company.
The series consists of a photocopied file list of "O" series (O files) correspondence files, showing disposition of files. It was created by the Surveys and Land Records Branch in 1982 from a computer print-out.
It includes references indicating the following:(1) files still active with the Survey and Land Records Branch (2) files microfilmed (3) files in the Provincial Archives (4) files sent to a Regional Office of the Ministry of Lands, Parks and Housing (5) Ministry of Forests files, partially renumbered to Forests filing system (6) Water Management Branch administration files and water rights applications (7) Parks Branch files renumbered to Parks Branch filing system (8) old Coal and Natural Gas files.