Reuters by Yereth Rosen.  The cost estimate for that 1,700-mile project is $32 billion to $41 billion, according to the TransCanada-Exxon Mobil open-season plan. Those companies have received FERC permission to start a 90-day open season on April 30.  Denali President Bud Fackrell (NGP Photo) said the company has 'a really high-quality design and execution plan' and believes its $35 billion estimate is well supported.  'We have to give confidence to the shippers that we know what this project is going to cost. We feel very good about that,' Fackrell [...]