HC Deb 23 May 1928 vol 217 cc1899-900W
Mr. WHITELEY

asked the Secretary for Mines how much petrol is contained per ton of imported oil and how much contained in the same quantity of oil from British coal?

Commodore KING

In both cases the quantity of petrol obtained depends, firstly, on the nature of the crude oil, and, secondly, on the nature of the process used, which again depends on the products which it is desired to obtain.