The opinions and recommendations in this report, and any errors, are those of the author, and do not necessarily reflect the views of the publishers and the funders of this report. [...] A similarly poorly constrained estimate by a consultant to the US Department of Energy put the unconventional gas resources of Alberta and BC at 536.8 tcf, including all potential plays,6 which is comparable to the 527 tcf sum of the Horn River and Montney plays in the NEB et al. [...] These centre on the realities of attempt- ing to supply the gas in the light of Canadian needs and the environmental implications of doing so, the alleged environmental benefits of LNG exports and the economic viability of the proposed plants in the face of global competition. [...] An analysis of well production data from the Horn River, Montney and the remainder of BC allowed the determination of well- and field-decline rates, average well quality, the number of wells that need to be drilled to make up for field decline and the number of wells that would be required to grow production to the levels needed to for various LNG export cases. [...] In 2012, the shrinkage factor for the Horn River and Montney plays averaged 13 per cent, meaning that whatever gas was produced at the wellhead would be reduced by 13 per cent through processing and cleanup by the time it was ready for sale.28 A third factor in determining the amount of gas that must be produced is the energy-intensive nature of the LNG supply chain itself.