Certus’ operations are focused in the Sylvan Lake and Caroline areas of Central Alberta. This prolific area is dominated by oil production from the Leduc reef trend, and includes significant production from the overlying Duvernay, Nisku, Pekisko, Shunda, Nordegg, Rock Creek, Ellerslie, Glauconitic, Viking, Second White Specks, Cardium, Belly River and Edmonton Sands reservoirs.