Footnote
b “A guyed tower constructed in more than 300 metres [1,000 feet] of water in the Gulf of Mexico has been estimated to produce oil at about 65 times the production cost in the Middle East.”—The Encyclopædia Britannica.
b “A guyed tower constructed in more than 300 metres [1,000 feet] of water in the Gulf of Mexico has been estimated to produce oil at about 65 times the production cost in the Middle East.”—The Encyclopædia Britannica.