Hi Kathy!
The reason the price is going up is simple: China.
China's economy is strongly improving, giving every increasing numbers of Chinese enough money to buy their first car. Between the new cars and the overall growth of economic activity in China, they are rapidly becoming the #2 user of energy products worldwide. Just a few years ago, they were just a blip on the radar screen.
Good news for us! India is only 10 years behind, so in about 10 years the prices for oil should start accelerating at an ever-increasing rate then.
What can slow the long-term rise in oil/gasoline prices. Only a switch away from oil as a transportation fuel.
Cliff
YIP
PS-Toyota is coming out with a large SUV hybrid (Highlander Hybrid) in about 5 months. It has more torque, more horsepower, and a lot better mileage than it's standard engine sibling.