A national stockpile of crude oil and fuel kept for emergencies.
EnergyStockpileResourceGovernment
Current best complexity is 60:
Petroleum Reserve can be discovered in Concepts, categorized under Energy, Stockpile, Resource, Government. A national stockpile of crude oil and fuel kept for emergencies.
It has been discovered by 1 board and crafted 1 time, first appearing 32 hours ago. Petroleum Reserve can be created from 1 recipe, and goes on to appear as an ingredient in 1 other.
Petroleum Reserve was first discovered by Becca's board 32 hours ago. They also hold the lowest-complexity recipe, at 60.
Related concepts worth exploring include Geothermal, Combustion, Explosion, Flame, Battery, Oil, and 6 more.