§ Mr. Skeetasked the Secretary of State for Trade and Industry if he will list the names of the gas fields in the British sector of the North Sea which contain helium.
§ Mr. RidleyThe West Sole, Leman Bank, Indefatigable, Viking and Rough fields each contain a very small amount of helium.
§ Mr. Skeetasked the Secretary of State for Trade and Industry what is the chemical composition of the natural gas derived from the mineral gas fields in the British sector of the North Sea.
§ Mr. RidleyThe gas so far discovered in the British sector of the North Sea contains a very high proportion of methane.
The precise composition of the gas varies from field to field but commercial considerations require the details to be kept confidential.