When you can explain why consumers would pay more for oil than they have to pay.
That's easy. Rich white democrat sheeple who have enough money that they don't quite feel the resulting pinch (or dishonestly deny they do) and who are more influenced by their need to belong and think they're smarter and hipper by flocking to the AGW scam. Also, ignorant racist bigots who allow their need to stick with the party that panders to their racism while undercutting their own budgets with the AGW scam.