Drilling

Cities specialized in Petroleum extract and process oil for profit.

• Natural resources such as ore, coal and oil in a region are finite.

• Make sure to inspect the region to find where the oil deposits are before you claim your city.

Petroleum extracted from the ground can be processed into more valuable resources.

• A refinery can be built to convert petroleum into fuel and plastic.

Petroleum is one of the big business specializations. It has it own global leaderboard.

Petroleum Structures

Oil Well-

Petroleum HQ-

Oil Refinery-