- Main article: Oil processing
It can also be used by Flamethrower turrets as ammo.
Each oil field has a yield displayed as x%. Each percent is equal to 75 pumpjack cycles. An oil field with 80% has between 6000 and 6074 cycles left, as yield does not display decimal places.
While cycles left is greater than 750 (10%), each pumpjack cycle reduces the number of cycles left by one.
So unless an oil field with less than 10% is created by map editor, yield will never drop below 750 cycles.
The amount of oil a pumpjack extracts per cycle is 1.0 multiplied by yield or [number of uses left] / 7500, but not greater than 10.0.
- Crude oil balancing: Halved the resource amount on the map Increased the minimum yield from 10% to 20% Halved the rate of depletion. Doubled the starting yield. Fixed that the mechanics of increasing richness with distance from start wasn't working for crude oil.