[1] JACOS started oil sands activities in the Athabasca area in 1978 on leases held by Petro-Canada, Canadian Occidental (Nexen) and Imperial Oil to form the PCEJ group.
[3] JACOS and its partners experimented with a cyclic steam stimulation (CSS) pilot project on the Hangingstone Lease from 1984 to 1994.
[4] In 1992, JACOS parent company JAPEX participated in the Alberta Oil Sands Technology and Research Authority (AOSTRA) steam-assisted gravity drainage (SAGD) pilot experiments at the underground test facility (UTF) site.
With the positive results from the UTF project, JACOS decided to further pursue SAGD technology at the Hangingstone site.
The GROC Hangingstone SAGD facilities are located on Lease OSL70, approximately 50 kilometres (31 mi) southwest of Fort McMurray and 25 kilometres (16 mi) west of the community of Anzac.