HC Deb 11 December 1922 vol 159 c2339
6. Mr. HANCOCK

asked the President of the Board of Trade the reason why he is unable to state the cost per ton of production of crude petroleum in Great Britain, Trinidad, Egypt, and Mexico for the year 1921?

Sir P. LLOYD-GREAME

Such figures are not published by the operating companies, who are alone in a position to make the necessary calculations.