Columbia subject headings:
Drilling platforms--Decommissioning.
Oil wells--Abandonment.
Petroleum industry and trade.
Petroleum law and legislation.
Harvard subject headings:
Drilling platforms--Decommissioning
Oil wells--Abandonment
Petroleum industry and trade
Petroleum law and legislation.
Princeton subject headings:
Drilling platforms--Decommissioning.
Oil wells--Abandonment.
Petroleum industry and trade.
Petroleum law and legislation.