Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Wood Buffalo National Park' has mentioned 'Oil' in the following places:
Occurrence Sentence Text Source
[8] Wood Buffalo is located directly north of the Athabasca Oil Sands.
The park was created after three oil companies: Teck Resources, Cenovus Energy, and Imperial Oil, voluntarily gave up certain oilsands and mining leases in the area, following negotiations with the Alberta government and indigenous groups.