A free app for Android, by Yoga Games LLC.

Gasville Tycoon: Oil Fever is a simulation game with an endless world to explore. Your job is to produce and refine oil and gas. This is not the easiest task in the world, but you will not be alone in this adventure. You will have to build a big company, own a lot of equipment and factories, and hire a lot of people. But it is not just the quantity that matters, but the quality of your oil and gas that will make you successful. You will have to buy new equipment and build new facilities. You will also have to sell your oil and gas to the highest bidder.