The Mannville play, being part of the lower Cretaceous period, is characterized by conventional and highly permeable sandstone reservoirs.DeltaWest Energy operationally focuses in the lower Mannville (heavy oil) with depth ranges between 800m - 850m. Since the pool's early development, the addition of horizontal multi-lateral well development has further unlocked potential, thus increasing resource recovery. DeltaWest Energy continues to maintain operation discipline, sustaining low-decline oil production and free cashflow over the next decade.

The Viking formation was deposited during the Lower Cretaceous period, similar to Cardium formation, where the sea level periodically fell causing deposition of shoreline sands onto the sea floor, creating the conventional sandstone reservoir. Surrounding it is a deposition of muddy/silty sandstone with lower rock qualities that are the unconventional oil targets of recent developments. Typical depth of the Viking formation ranges from 600m to 900m. The main and widely used application for this unconventional oil development is horizontal drilling with induced hydraulic multi-stage fracturing. DeltaWest Energy has acquired some leases in the Provost field with surrounding proven oil production.