Invest your profits in dozens of upgrades, including better drills to break through rock and tools to prevent costly oil spills.
Strategically store your oil in silos and wait for price peaks, or use natural gas to manually boost the market price.
While Turmoil is a paid title on most platforms, there are ways to download it for free or try it before you buy:
Keep an eye on the Epic Games Store Free Games rotation, as they occasionally feature indie titles like Turmoil for a limited-time 100% discount.