Why is oil so costly?

Related questions

1. Who decides crude oil price?
2. Why is heating oil so expensive?
3. What happens when prices high?
4. How many years of oil are left?
5. What happens when the price of a good increase?
6. What was the price of oil in 2014?
7. Will heating oil prices go up this winter?
8. Who controls the oil in the world?
9. Will the world ever run out of oil?
10. What affect oil prices?

Tags

1. #goods
2. #raise
3. #production
4. #imported
5. #forces
6. #supply
7. #caused
8. #costs
9. #prices
10. #constant
11. #value
12. #maintain
13. #profit
14. #margins
15. #price
16. #dollar
17. #revenues
18. #their
19. #declines