Columbia subject headings:
Harvard subject headings:
Gas industry--Government policy--Middle East.
Middle East--Economic conditions.
Natural gas--Middle East.
Petroleum industry and trade--Government policy--Middle East.
Petroleum industry and trade--Middle East
Princeton subject headings:
Gas industry--Government policy--Middle East.
Natural gas--Middle East.
Petroleum industry and trade--Government policy--Middle East.
Petroleum industry and trade--Middle East.