The protesters say they want answers from Canadian Natural Resources Ltd.
Earlier this month Alberta's energy regulator told the corporation to stop injecting steam into the ground near Cold Lake after a series of four spills.
Members of the Beaver Lake Cree and Cold Lake First Nations area say they aren't getting enough information about what happened.
Greenpeace Canada says the company must be accountable for its actions.
The groups say spills over the last six weeks have killed animals and birds.
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