The Woodbend Group is a stratigraphical unit of Frasnian age in the Western Canadian Sedimentary Basin.

In reef build-ups, it consists of massive limestone and dolomite with porosity (Leduc Formation).

Shale gas and liquids are extracted from the Duvernay Formation using horizontal drilling and multi-stage hydraulic fracturing.

[3] Several project test the economic viability of extracting bitumen from the Grosmont Formation.

Newer deposits rest on the Woodbend group upon an erosional surface in eastern Alberta, south-central Saskatchewan and Manitoba.