Project Oil
Project Oil is a planned project. Its goal is to succesfully extract oil and turn it into an useful resource. It's a long and complex road, and therefore it's divided into 4 different phases.
Phases
Phase 1
Create the oil pumps and make an efficient oil well design. Making a refinery building is also a part of this phase.
Phase 2
Extract the oil and store it into tanks in the refinery. Deliberating how to make the cooling system and the refinery process should start here.
Phase 3
Make a refinery and begin refining oil into useful fuel in the refinery, then store into tanks for time being. A working water cooling system should be made in this phase, which would be needed to cool combustion engines.
Phase 4
Use the fuel. That could be, for instance, powering quarrys with combustion engines, which would use the cooling system from phase 3.