The Bureau of Land Management (BLM) rules on venting and flaring could require costly methane controls for some of the very same emission sources already regulated by the EPA, or under consideration by EPA for regulation. (energytomorrow.org)
If you're strictly worried about CO2 intensity, the Quest project is a step toward bringing the oilsands closer to having the same emission levels of other sources of oil. (canadianbusiness.com)
and not cost - effectiveness (could the same emissions reductions have been generated at lower total cost to society?). (canadianbusiness.com)