Columbia subject headings:
Concessions--North Sea.
Continental shelf--European Economic Community countries.
Offshore oil industry--European Economic Community countries.
Offshore oil industry--North Sea.
Petroleum in submerged lands--North Sea.
Harvard subject headings:
Continental shelf--European Economic Community countries.
Economic zones (Law of the sea)--European Economic Community countries.
Offshore gas industry--Law and legislation--European Economic Community countries.
Offshore oil industry--Law and legislation--European Economic Community countries.
Offshore oil industry--North Sea Region.
Princeton subject headings: