09:54 AM EST - Canadian Natural Resources Ltd. : says it's raising the estimated cost of its Horizon oilsands project again, to $9.27 billion. That's 8 percent above the previous total cost estimate of $8.74 billion and 36 percent higher than the original 2004 estimate of $6.8 billion. Canadian Natural Resources Ltd.
shares T.CNQ are trading up $1.72 at $81.00.
