Columbia subject headings:
Petroleum industry and trade--Forecasting.
Petroleum industry and trade--Government policy.
Petroleum reserves--Forecasting.
Petroleum reserves--Government policy.
Harvard subject headings:
Petroleum conservation.
Petroleum industry and trade--Government policy
Petroleum industry and trade.
Petroleum reserves--Government policy.
Petroleum reserves--Political aspects.
Petroleum reserves.
Princeton subject headings:
Petroleum industry and trade--Forecasting.
Petroleum industry and trade--Government policy.
Petroleum reserves--Forecasting.
Petroleum reserves--Government policy.