::Simply deleting 3/4 of the article just isn't acceptable. A lot of useful information was erased, and what was left was unqualified reserve estimates with no indication of where they came from or any analysis of what they really meant. Different analysts will come up with different assessments of reserves based on what they think the odds are, and even the experts are often wrong. Economics always enters into it, and production is often determined by political factors. Finding oil is a high-risk, high-payoff gambling game that oil companies are used to playing, but it's a mystery to the general public. All of the discussion of this was deleted from the article.