Oil can be further increased by either achivement (mining easy achivement increases max oil by 500 or Silos.
Your own max Oil amount is 10.
|Silver Oil Silo||100||3|
|Gold Oil Silo||1000||20|
|Promethium Oil Silo||10000||20|
There are currently a few Oil Wells available
|Bronze Oil Well||1||10|
|Iron Oil Well||2||25|
|Silver Oil Well||3||50|
|Gold Oil Well||5||50|
|Promethium Oil Well||100||50|
The Oil Factory allows you to hire workers who will collect oil for you. Oil Factory can be crafted at Crafting Level 25 and costs
|Name||Worker cost||/ worker||Max # of workers||Cost|
|Oil Factory||40 000||2||5||25 000 Stone, 250 Silver Bars, 50 Gold Bars.|