There are all sorts of oils around us, some to keep us warm during the winter months, some to make us healthy, and some to cover our skin with to make it softer. Oil and gas companies make a lot of money because we use it to heat our homes with it and also to use our cars to go to and from our workplace and other ventures. Alberta oil seems limitless at one million barrels per day, and there's talk of increasing that production to five million. Motor oil needs to be changed every six thousand kilometeres or so in order to keep the interior of the motor clean of all outside dust and other elements. Oil of Olay is used mostly by women who like to use it on their faces in order to keep their skin from ageing too much. Cod liver oil is an excellent supplement for those who want to lower cholesterol.