They are not at all, not a single bit.
There were also many wells drilled in the Mackenzie delta area and surrounding areas. The only significant oil and gas play that exists today is Norman Wells, which has been producing oil since 1929. That's the oil field where Alexander Mackenzie noted that there was oil flowing into the Mackenzie River from surface areas along the riverbank. Other than that....
The three periods, by the way, were, first, pre-1977, when the Berger inquiry and the National Energy Board halted potential for development; the second one was the Beaufort Sea development. The third was in about 2000, when the oil companies felt that they probably could run a gas line into the Beaufort and up the valley. Quite a bit of activity ensued, until it became clear that the review process really didn't seem to have any kind of end, and all of the proponents pulled back from all of their activities awaiting some kind of certainty from the environmental and social review that was carrying on.
That went on for six years. It was terrible, in my opinion, and it served no purpose.