This digital data release contains the estimated quantities of shale- and siltstone-hosted hydrocarbons in Alberta described in Energy Resources Conservation Board/Alberta Geological Survey (ERCB/AGS) Open File Report 2012-06. The estimates are for the following units: - Duvernay Formation - Muskwa Formation - Montney Formation - Combined basal Banff and Exshaw formations in southern Alberta - North Nordegg Member - Wilrich Member For information on the extent and characteristics of the shale and siltstone units and the overall resource assessment approach see Energy Resources Conservation Board/Alberta Geological Survey Open File Report 2012-06. For a detailed description of the resource assessment methodology see Alberta Energy Regulator/Alberta Geological Survey Open File Report 2013-13.