Williston Basin
The Williston Basin core area is characterized by a stable oil production base and significant long term oil exploitation opportunities. The Williston Basin properties are located within relatively close proximity in southeast Saskatchewan, southwest Manitoba and three northern counties of North Dakota. The properties produce light and medium-gravity oil from carbonate reservoirs at depths up to 1,600 metres. In 2009, the Williston Basin contributed 55 percent of the Trust’s oil and liquids production and accounted for 62 percent of the Trust’s proved and probable oil and liquids reserves.
The majority of Zargon’s Williston Basin producing reservoirs are characterized by low to moderate permeability and large volumes of remaining oil-in-place. Through exploitation projects, Zargon seeks to increase oil recovery factors with a combination of exploitation techniques, including: pressure maintenance by water injection, 3D seismic, unstimulated horizontal wells and fracture-stimulated horizontal wells to unlock additional oil reserves. In general, all of our waterflood initiatives are long term projects that lead to facility modifications and revised injector patterns, which then enable the drilling of very profitable drainage horizontal locations in future years.