Conclusion from another article:
Why do we have oil subsidies? If we are to have a productive discussion of fossil fuel subsidies, it is important that participants understand what they are, their intended purpose, and the projected impact of removing them. Projecting the impact requires more than a guess. Because of misleading political rhetoric, people imagine these subsidies as cash payments to oil companies. But, many of these subsidies are not what people think they are. In many cases they are benefiting people who have nothing to do with the oil industry — yet the money spent on these programs is still tallied against the oil industry. The result is a great deal of anger over spending that often benefits the angry people. That is why it is so hard to get rid of fossil fuel subsidies; a majority of the population likely supports at least some of them without realizing that they are in fact subsidies. And until those who are loudly screaming that we must eliminate these subsidies actually take the time to understand what they are — as well as the impact of removing them — we can expect there will continue to be much heat and little light on this topic.