I have been into "petrol" for a few years now and honestly guys, you should spend time on it and do some research.
You will literally understand a lot more about our world, our economy and MOST IMPORTANT: OUR FUTUR!!!
I'll get you started with the subject of Peak Oil.
There is about 4.000.000 pages listed on google but still a lot of people don't know anything about it and this is THE thing that will radically change your life style AS YOU KNOW IT!