The competition may have just got harder," RBC analyst Peter Hutton said, alluding to the huge chunk of demand that the Russia-to-China pipeline will now satisfy. Globally, Royal Dutch Shell PLC, Chevron Corp. and Eni SpA are among the major energy companies that have proposed LNG export plants but don't have long-term contracts in place, and may find it tougher to lock in higher prices, Mr. Hutton said.