Suncor, one of the largest players in tar sands oil said in one of their earnings call transcripts that their cost was $30/barrel. I can dig it up if you need a

Suncor, one of the largest players in tar sands oil said in one of their earnings call transcripts that their cost was $30/barrel. I can dig it up if you need a citation, but it was right around the time the WTI dropped below $30.