The game is nice. The tutorial is easy to understand. The gameplay is about you will play the role of an oil company owner where you must explore the land and deploy your equipment to extract oil. Sell the oil that you collect at an affordable or reasonable price in order to grow your company.
You can improve your company outputs by upgrading your equipment. This will give you more efficiency and gain more profit.
Overall, it's a good oil company simulator. Even though the gameplay is mostly repetitive, due to the process of extracting oil and selling it.