|Notes||Tile Improvement buildable by Worker units on Petroleum resources.|
A Petroleum Well requires Chemistry and allows access to Petroleum resources, both on land and at sea.
Through the use of Wells, colonies can harness the naturally produced Energy of their new world. While Petroleum still exists, it is the new resources which ensure dry-land drilling remains an important part of human industry. When built on dry-land, Wells can provide access to much needed Geothermal and Xenomass resources.