Columbia subject headings:
Gas fields--Great Britain--Maps.
Gas fields--Ireland--Maps.
Maps.
Natural gas in submerged lands--North Sea--Maps.
Oil fields--Great Britain--Maps.
Oil fields--Ireland--Maps.
Petroleum industry and trade--Great Britain--Maps.
Petroleum industry and trade--Ireland--Maps.
Pipelines--Great Britain--Maps.
Pipelines--Ireland--Maps.
Harvard subject headings:
Airports--British Isles--Maps.
Electric power-plants--British Isles--Maps.
Gas fields--British Isles--Maps.
Gas fields--North Sea--Maps.
Gas industry--British Isles--Maps.
Oil fields--British Isles--Maps.
Oil fields--North Sea--Maps.
Petroleum industry and trade--British Isles--Maps.
Pipelines--British Isles--Maps.
Pipelines--North Sea--Maps.
Princeton subject headings: