China's Cnooc Ltd.'s acquisition of Canadian energy company Nexen Inc. could increase Asia's influence over the pricing of Brent crude, the global oil benchmark, analysts said Monday. The deal puts the largest crude stream that feeds into the physical Brent benchmark into Chinese state-owned hands, allowing exclusive insight into North Sea production issues and maintenance that can affect the price of Brent crude and other crudes priced off of it, analysts said
China's Cnooc Ltd.'s acquisition of Canadian energy company Nexen Inc. could increase Asia's influence over the pricing of Brent crude, the global oil benchmark, analysts said Monday.

The deal puts the largest crude stream that feeds into the physical Brent benchmark into Chinese state-owned hands, allowing exclusive insight into North Sea production issues and maintenance that can affect the price of Brent crude and other crudes priced off of it, analysts said.

"We've seen this year that when we had maintenance on Buzzard [the U.K.'s highest producing field], that had a strong influence on the price of Brent and the structure of Brent," said Olivier Jakob, managing director of Swiss-consultancy Petromatrix. The deal will mean better insight into prices for Cnooc, Mr. Jakob said.

Buzzard is expected to produced about 70,000 to 85,000 barrels of oil equivalent per day net to Nexen in 2012, according to the company's website.

Price reporting agency Platts said Monday that is was premature to speculate on what effect the planned acquisition would have on the Brent market, as it is still awaiting final regulatory approvals.

"Platts is following this deal, as it would with any major market event, and continues to be in regular contact with all key stakeholders on any matters related to the Brent crude oil benchmark," it said.

Michael Hewson, senior market analyst at CMC Markets, said Cnooc would have limited influence over the pricing because of the other players in the North Sea, such as Norway's Statoil ASA.

"At the end of the day, they're in it to make money, so the more oil they pump, the more money they'll make," Mr. Hewson said. "We have to get used to Chinese companies taking over infrastructure given the state of finances in Western companies."

Cnooc's $15.1 billion bid for Nexen was approved late Friday by the Canadian government, but still needs U.S. and U.K. regulatory approvals. Earlier in the year, China's Sinopec agreed to acquire 49% of the North Sea assets owned by Canada's Talisman Energy Inc.