The game has 7 locations which will be given special tasks. You have to do them by the end of the day. It can be to collect n-th amount of oil or earn a few thousand $. To start playing, you need to choose the difficulty of the game. There are 5 levels of difficulty ( easy-normal-hard-very hard - insanely). I recommend to put easy or normal to begin with. After selecting the difficulty you are thrown to the choice of location. Each location has a different atmosphere. When you get to the location you are given the opportunity to look around, after which you either hire a geologist for $ 200, which shows the approximate location of the oil. Or you can manually predict the source. On easy difficulty levels, oil is often seen on the surface, so the difficulty of finding is minimized. You buy an oil rig for $ 1000, immediately after it you buy an oil storage tank. After installing the reservoir, you choose the depth of the well. The deeper, the more money you need to spend. Here you are lucky to get to the oil, but you missed a bit and hit the edge of the source. Every second the source gets smaller and smaller, and eventually the oil rig stops working. The game is not OVER. You are sure to sell the current tower for$ 400 along with the tank and put a NEW one. You can buy an unlimited number of towers, but the condition that one location should be no more than ONE. And this is not how not to CHANGE. That would modicum something did, not watched as game itself plays, then after as in tank will gain right number of oil you scooping up its a bucket and carry on sale. Don't put the towers too far from the market. Time is important. The rate is purely random can jump 0.20$/1 unit of oil ( in one bucket without pumping 15 units of oil). Wait for a better rate (3-4$) and then sell. For each sale of oil you get 15 units of experience, when you reach the desired amount you increase the level. Per level give points improvements. You spend them on a bunch of cool buns, which facilitate the gameplay and make it more dynamic, everything happens faster.