The Middle Devonian barrier carbonate complex of northeast British Columbia is the locus of significant gas reserves (2.2 tcf). Future expected potential of this play is estimated to be 3.3 tcf. To make this estimate, the following procedure was used. First, an analysis of the paleogeography and stratigraphic relations of Middle Devonian units permitted us to formulize the facies model from which the opportunities for petroleum accumulation can be postulated. Second, reservoir parameters of the play were retrieved from the existing pool data file provided by the government of British Columbia. These reservoir parameters, including recovery factor, water saturation, reservoir pressure and temperature, gas deviation factor, area, net pay, and porosity, can be used in charac erizing the undiscovered resource. The outputs of the statistical procedure used in the evaluation include the mean of play potential, number of pools which comprise the play potential, pool size, and reservoir parameters for each pool computed. These outputs, together with additional reservoir data, were used for economic analysis and simulation of future exploration history.

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