There will definitely be increased regulation, or attempts to show the people that they're taking action to prevent a repeat. Question is, how far will they go?
The Governments at the moment are arguably not doing enough to regulate the finance industry, even after the GFC, and surely there will be lobbyists from the oil industry arguing against more regulation.
Even with increased costs, the oil companies can simply pass the costs onto the consumers, or even worse, increase their margins as an excuse. Inelastic demand for commodities such as oil will just mean increased price IMO.
Sustainable resources to take the place of oil will take more time than people think IMO.
GGP Price at posting:
2.9¢ Sentiment: LT Buy Disclosure: Held