§ Mr. Wigley
asked the Secretary of State for Energy how much crude oil was refined at each of the oil refineries located in Wales during the latest year for which statistics are available; and how much of this oil was from the North Sea.
§ Mr. Gray
Information about the individual refineries is commercially confidential, but taking the five refineries together, total throughput of oil in 1981 amounted to 15.9 million tonnes. A precise figure of the North Sea oil share of this throughput is not available but it is estimated to have been about 45 per cent.