Look at the map depicting Transcanada's proposed and existing lines. You are absolutely wrong. The oil will flow whether the line running through/adjacent to the Ogalalla aquifer is permitted or not. If its not approved, the volume of flow would be reduced.
Beyond that, the permitting process is just that. A process. With multiple federal, state, and local governmental entities and agencies involved, and multitudes of property owners objecting to the unauthorized use of their land. The project will eventually be completed.
Why is it so difficult for you to comprehend that they are not constructing a shed?
clueless environmental wackos....enjoy your skyrocketing utility bill OK?