What causes gas prices to change?

Related questions

1. What is WTI price?
2. Is there oil in Dubai?
3. What is Brent crude oil price?
4. What happens when you run out of oil in your house?
5. Why is the price of oil rising?
6. Which crude oil is best?
7. Does oil come from dinosaurs?
8. Why is Nymex cheaper than Brent?
9. What day of the week is gas cheapest?
10. What is the difference between Brent and WTI oil prices?

Tags

1. #available
2. #consumption
3. #crude
4. #relative
5. #gasoline
6. #expected
7. #decreases
8. #seasonal
9. #specifications
10. #prices
11. #increase
12. #changes
13. #because
14. #stable
15. #supply
16. #fluctuate
17. #demand