Adnoc may bring in international investors for the pipelines, which could raise $5B or more. : (Bloomberg) -- Abu Dhabi National Oil Co. is seeking to raise billions of dollars from its natural-gas pipelines, months after the state-owned explorer got a $4 billion investment in its oil infrastructure assets, according to people familiar with the matter. Adnoc, as the company is known, is speaking to financial advisers about bringing in international investors for the pipelines, which could help raise $5 billion or more, one of the people said, asking not to be identified as the matter is private.