Without copper, your settlements cannot run properly. Lights will not work. Turrets will not function. Advanced crafting becomes limited.
Game Rant on MSN

Fallout 4: Where to get oil

Oil is essential for crafting certain items in Fallout 4. This guide will show you where to find some.
Junk scavenging is the most straightforward way to get Nuclear Material, with items like alarm clocks and biometric scanners ...