HC Deb 14 March 1968 vol 760 c370W
Mrs. Ewing

asked the Minister of Power what estimate he has made of the value and potential use of the shale oil deposits in Midlothian and West Lothian.

Mr. Marsh

The workings were closed in 1962, when each ton of oil produced was costing the Exchequer £10 in subsidies. Proven deposits are not extensive and are likely to have a low oil production potential.