Oil

Crude oil is extracted by wells and refined into fuel, lubricants and other products. Active recipes:
• Gasoline: 4 Crude oil → 3 Gasoline
• Diesel fuel: 4 Crude oil → 3 Diesel
• Industrial rubber: 2 Crude oil + 1 Gas → 2 Rubber
• Lubricant: 3 Crude oil → 2 Lubricant
• Plastic production: 3 Crude oil → 2 Engineering plastic