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JOINT ARRANGEMENTS - Joint Operations (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2021 | Sep. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2021 | Dec. 31, 2020
Golden Eagle Area Development |  |  |  |  |
JOINT ARRANGEMENTS |  |  |  |  |
Ownership interest sold (as percent) | 26.69% |  |  |  |
WWR Project | Conditional agreement |  |  |  |  |
JOINT ARRANGEMENTS |  |  |  |  |
Ownership interest (as percent) |  | 40.00% |  |  |
Percentage increase in ownership interest in joint operation |  | 12.50% |  |  |
Oil Sands | Operated By Suncor | Fort Hills Energy Limited Partnership |  |  |  |  |
JOINT ARRANGEMENTS |  |  |  |  |
Ownership interest (as percent) |  |  |  | 54.11% | 54.11%
Oil Sands | Operated By Suncor | Meadow Creek |  |  |  |  |
JOINT ARRANGEMENTS |  |  |  |  |
Ownership interest (as percent) |  |  |  | 75.00% | 75.00%
Oil Sands | Operated By Suncor | Syncrude |  |  |  |  |
JOINT ARRANGEMENTS |  |  |  |  |
Ownership interest (as percent) |  |  |  | 58.74% |
Oil Sands | Non-operated | Syncrude |  |  |  |  |
JOINT ARRANGEMENTS |  |  |  |  |
Ownership interest (as percent) |  |  |  |  | 58.74%
Exploration and Production | Operated By Suncor | Terra Nova |  |  |  |  |
JOINT ARRANGEMENTS |  |  |  |  |
Ownership interest (as percent) |  |  |  | 48.00% | 37.68%
Exploration and Production | Non-operated | Buzzard |  |  |  |  |
JOINT ARRANGEMENTS |  |  |  |  |
Ownership interest (as percent) |  |  |  | 29.89% | 29.89%
Exploration and Production | Non-operated | Fenja Development JV |  |  |  |  |
JOINT ARRANGEMENTS |  |  |  |  |
Ownership interest (as percent) |  |  |  | 17.50% | 17.50%
Exploration and Production | Non-operated | Golden Eagle Area Development |  |  |  |  |
JOINT ARRANGEMENTS |  |  |  |  |
Ownership interest (as percent) |  |  |  |  | 26.69%
Exploration and Production | Non-operated | Hibernia and the Hibernia South Extension Unit |  |  |  |  |
JOINT ARRANGEMENTS |  |  |  |  |
Ownership interest (as percent) |  |  | 19.48% |  | 19.19%
Percentage increase in ownership interest in joint operation |  |  | 0.29% |  |
Exploration and Production | Non-operated | Hibernia and the Hibernia South Extension Unit | Minimum |  |  |  |  |
JOINT ARRANGEMENTS |  |  |  |  |
Ownership interest (as percent) |  |  |  | 19.48% | 19.19%
Exploration and Production | Non-operated | Hibernia and the Hibernia South Extension Unit | Maximum |  |  |  |  |
JOINT ARRANGEMENTS |  |  |  |  |
Ownership interest (as percent) |  |  |  | 20.00% | 20.00%
Exploration and Production | Non-operated | Hebron |  |  |  |  |
JOINT ARRANGEMENTS |  |  |  |  |
Ownership interest (as percent) |  |  |  | 21.03% | 21.03%
Exploration and Production | Non-operated | Harouge Oil Operations |  |  |  |  |
JOINT ARRANGEMENTS |  |  |  |  |
Ownership interest (as percent) |  |  |  | 49.00% | 49.00%
Exploration and Production | Non-operated | North Sea Rosebank Project |  |  |  |  |
JOINT ARRANGEMENTS |  |  |  |  |
Ownership interest (as percent) |  |  |  | 40.00% | 40.00%
Exploration and Production | Non-operated | Oda |  |  |  |  |
JOINT ARRANGEMENTS |  |  |  |  |
Ownership interest (as percent) |  |  |  | 30.00% | 30.00%
Exploration and Production | Non-operated | White Rose and the White Rose Extensions | Minimum |  |  |  |  |
JOINT ARRANGEMENTS |  |  |  |  |
Ownership interest (as percent) |  |  |  | 26.13% | 26.13%
Exploration and Production | Non-operated | White Rose and the White Rose Extensions | Maximum |  |  |  |  |
JOINT ARRANGEMENTS |  |  |  |  |
Ownership interest (as percent) |  |  |  | 27.50% | 27.50%

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