Or the engineer's team leader.Unfortunate, but as Lynch once said ( and I paraphrase ), if you want to know what oil wells and fields are doing, you don't ask an MBA who sells IPO's to pension funds, you ask a reservoir engineer.
Or the team leader's manager.
Or the managers CTO.
or the CTOs CEO.
Or the CEO's merchant banker.
Information can be transferred. Sure, it can be trimmed, tidied etc along the way .. but a contentious piece of info such as PO will be reviewed by MANY people and groups.
I haven''t heard thousands of engineers, oil companies etc claiming that Simmons is totally deluded.
I'm not even sure that asking a reservoir engineer would help much ... you would need a very experienced individual who had full access to all the data of many wells .. and even then you would be getting the opinion of a single individual.
Simmons has access to, and input from, many people at all levels in the oil industry. I doubt that he is making any insanely gross errors.
The numbers may be out a bit - but does it really matter if we hit the wall today, tomorrow, in two years time or in ten years time? Based on our track record we will be equally unprepared in ten years times as in one years time.