KHOBAR, Saudi Arabia, Oct 3 (Reuters) - Saudi Aramco Lubricating Oil Refining Co (Luberef)expects to award a contract to double the capacity of a lubricants refinery in Yanbu this month,the company's spokesman said on Wednesday.

"It is expected the contracts will be awarded in October 2012, with a target date forcommissioning the project in the second half of 2015," the spokesman told Reuters.