Discover our game mechanics inspired by the real OIL extraction
Game mechanics explained
When you extract OIL you obtain $cOIL (Crude OIL) which is not refined. You will have to refine it before to obtain $OIL.
All your reward items have a maximum durability and need maintenance over the time. If you don't Repair your items your extraction rate (rewards) will decrease. To keep a good production rate make sure to repair your them.
You have different ways to extract more $cOIL (earn more rewards) :
After extraction you obtain $cOIL which as to be refined before to obtain $OIL.
Thanks to the Storage you can claim your $cOIL rewards and store them. Then you can use it to buy new Reward Items, Booster Items and other stuff to increase your Oil production.
Then you have 2 choices :