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Fallout 4introduced settlements to the franchise for the first time. you may sink many hours into building your own town and crafting weaponry. Now, all the junk found in the wasteland can be broken down into components. You then use these components to improve your weapons, armor, and settlements.
Oil is one of thesecrafting components that you’re able to findin the Commonwealth. Oil is very important as it’s a necessary resource to build turrets, water purifiers, generators, and other machines in your settlements. You will also need oil to upgrade certain weapons and craft explosives. This guide will show you where you can get oil inFallout 4.

Junk Items
There are several junk items that contain oil. Storing themin your settlement workshopwill add to the amount you have. you may also drop the items and scrap them to immediately extract the oil to add to your inventory. Oil can be found in items that make sense to contain it, such as lighters and gas canisters. Leveling up the Scrapper perk will net you more components from junk items. The following list contains all items that can be broken down for oil and the areas where you can find a decent amount.
Six are located in the Memory Den

One at Vault 81
Found in basins of Fog Condenser machines

Three can be found at Jamaica Plain
One can be found in Boston Mayoral Shelter
Eight can befound at Dunwich Borers
Many can be found in forts and factories
14 in Nuka-Town Backstage
Search bathrooms in the wasteland
Three at Federal Ration Stockpile
Shipments
You can also buy shipments of components.Visit certain vendors to buy junk in bulk. Here is where you can find oil shipments in the Commonwealth.