HONG KONG (AFX-ASIA) – CNOOC Ltd’s US$500 million debt issue was 14 times oversubscribed, according to a source close to the deal. The company earlier disclosed that CNOOC Finance (2003) Ltd had issued US$300 million in 30-year guaranteed notes and US$200 million in 10-year notes. The 5.5% 30-year notes were priced at 118 basis points…