Columbia subject headings:
Petroleum industry and trade--Saudi Arabia.
Petroleum industry and trade--United States.
Saudi Arabia--Foreign relations--United States.
United States--Foreign relations--Saudi Arabia.
Harvard subject headings:
Petroleum industry and trade--Saudi Arabia
Petroleum industry and trade--United States
Saudi Arabia--Foreign relations--United States
United States--Foreign relations--Saudi Arabia.
Princeton subject headings:
Petroleum industry and trade--Saudi Arabia.
Petroleum industry and trade--United States.
Saudi Arabia--Foreign relations--United States.
United States--Foreign relations--Saudi Arabia.