A new update has been released to balance quarries and pumpjacks. See Damage on production section in the overview.
Quarries/pumpjack max level changes to 5 from 10 (only effects newly placed)
Quarries now take damage when it consumes fuel
Quarries now repairable (cost: wood, metal fragments, gears, sheet metal)
Pumpjacks now display crude production under resource icon in upgrade menu
Pumpacks do not take damage on production
I've subtracted run time decay update for now to let the other changes set in as to not overwhelm players with a bunch of new mechanics at once.
Going forward, quarries output will be decreased by default but can be "boosted" by activating perks available to max level quarries. You'll be able to activate 1 perk at a time to boost production:
Your quarry works harder, producing more resources in exchange for required regular maintenance to keep quarry repaired.