asked the Secretary of State for Energy if he will list in separate tables (a) the 12 fields in the United Kingdom continental shelf on stream, (b) the eight fields under development, (c) the three fields the subject of appraisal and the five fields for which development proposals have been submitted, giving in every case the actual or anticipated cost per barrel of the oil produced or likely to be produced.

Model clause 31 of the clauses set out in part II of schedule 2 to the Petroleum and Submarine Pipe-lines Act 1975 and incorporated in licences precludes the release of the requested information on individual fields.