Unpublished report says potential toxic effects and environmental threats from bitumen pipelines are relatively unknown.
Document was obtained by Greenpeace under freedom-of-information legislation.
Government says regulation should address First Nations concerns about environmental issues associated to oil pipelines.
The heavy oil project is expected to produce about 80,000 barrels of bitumen per day using steam recovery methods.
The coker project would cut crude costs at the refinery, which has long relied on pricey overseas imports.
The approval subject to conditions, including Enbridge undertaking activities involving pipeline integrity, emergency response.
Pembina Institute wants regulators to consider climate impacts during hearings.
Mildred Lake and Centrifuge Tailings Management take bulk of the spending.
Governments need to mitigate risks and regional disparities associated with rapid oilsands expansion, institute says.
Deal on sustainable energy development gives Alberta direct access to decision-makers and strategists in China.
Getting Alberta bitumen to market is the matter that must be seized.
They would enable his company Kitimat Clean Ltd. to secure loans at a lower cost.
Pipeline builder is filing an application to nearly triple the size of its Trans Mountain line.
New oil proposals would turn Pacific Northwest into a giant shipping lane.
Fuel Quality Directive would see EU countries importing the bitumen subject to penalties.