JACOS
Open-knowledge reference entry
Japan Canada Oil Sands Limited (JACOS) was an oil sands extraction company. It was the operator of the Hangingstone oil sands project. JACOS was acquired by Greenfire Resources Operating Corporation in 2021.
History
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. It was the first Asian-owned oil company to exploit the Athabasca oil sands. JACOS and its partners experimented with a cyclic steam stimulation (CSS) pilot project on the Hangingstone Lease from 1984 to 1994.
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. A 3-phase demonstration project was designed and constructed with the first phase becoming operational in 1999.
In 2021, JACOS was acquired by Greenfire Resources Operating Corporation (GROC) which is backed by McIntyre Partners and Griffon Partners.
“JACOS” enters the record as open-knowledge reference entry. Crown Archives preserves that source wording while asking what JACOS, Open-knowledge and entry can confirm, complicate or overturn.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated May 29, 2026. The linked authority identifier is Q6107607. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2021, 1978, 1984 and 1994.
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This entry incorporates text from “JACOS” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.