"Some 5-10 years development will be needed after start-up to get the hydrocarbons to the pump in any volume."

This type of argument often is used to do nothing (and I am not saying that this is what you mean): It will take 8 - 15 years to build a nuclear energy project but we need energy now--and forget drilling oil where the oil is altogether. It will take 30 years to build a comprehensive transportation system, but we need to get around now. It will take 6 years to build a desalination plant, but we have a water shortage and need potable water now. So we wring our hands, implement short term, temporary solutions which work (sort of), and then do sweet nothing to implement the long term solutions. Then we have the conversation all over again in a couple of years.

As I noted on another thread, I noted the the US has not built a new oil refinery in over 30 years, and the one's in use (many have been taken off line) are old and require more and more maintenance. I have read, thankfully, that one of the Dakotas has approved the construction of a new refinery.