An Analysis of Bias and Reliability in Revisions of Previous Estimates of Proved Oil and Gas Reserve Quantity Information: An Update
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Alan D. Campbell
There is continuing concern that the quantities of proved reserves reported by oil and gas companies are highly unstable. This instability usually shows up through subsequent revisions to reported reserve quantities. Professor Campbell reviews reported revisions relative to reserve quantities and finds that, for the most part, reported amounts are relatively stable and free from bias.
An Analysis of Bias and Reliability in Revisions of Previous Estimates of Proved Oil and Gas Reserve Quantity Information: An Update. Campbell, Alan D., Spring 1988, pp. 101‑146.