Liam, indeed your hate for the oil industry and their perceived destruction of "traditional values" is apparent in nearly all of your posts. However my point is that a deal is a deal. As much as you might hate them you're as bad as them, in a way, if you go back on your word. No these credits are not sustainable, and should be gone. And these companies are well aware tax rates and tax credits are subject to change over time. However I feel it is not right to expect to end them overnight. A phaseout over a few years is entirely appropriate.