I've been meaning to make a blog post to educate all the libertarians in my family, but you guys get to see it first:) Believing that oil prices will continue to go up is perfectly reasonable for average consumers, because everyone has just experienced a decade of 9% price increases. In addition, demand is expected to increase by around 1% per year, and we have all seen the ridiculous "peak oil" charts that show a 2% decline in supply per year over the next several decades (the IEA shows increasing supply over the next several decades however). But the bottom line is that in order to believe that oil will see another decade of 9% oil growth, you have to be ignorant of the radical breakthroughs that have happened in the last 5 years with natural gas and solar. Here is why competition from these energy sources will cause oil prices to go down, not up:
1) Natural Gas
The supply of natural gas has gone way up due to new extraction techniques and the discovery of new sources while drilling for oil. In the last few years the price of natural gas has plummeted by 72%. The US has so much of it now, they are just venting 40% of it off, building export facilities to sell it in liquefied form (LNG) to Europe, building facilities to convert it into oil, and converting the trucking industry to run on it directly. As this infrastructure is built, demand for oil will take a major hit.
http://www.tradingeconomics.com/commodity/natural-gas2) Solar
The price of solar has dropped 75% in the last 3 years, making it suddenly financially viable. In addition, governments around the world have huge tax breaks for solar, resulting in tons of installs even in places like Germany where the sun does not shine optimally. Solar has grown at an average of 59% since 2001, 110% in the last 3 years, and 193% in 2011. Keep in mind that one decade of 50% growth means 58 times more solar power. Lots of people don't even realize yet that if they are going to own a house for more than 10 years, they may save money with a solar install, and it will continue to get cheaper. Right now, solar is only .04% of global energy, but it won't take long to make a dent with these growth rates.
With a largely inelastic supply, even a tiny decrease in demand makes a huge difference in the price. In 2008 we saw demand decrease by a fraction of 1%, yet the price dropped by 60%. These two competitors will take large chunks out of the demand for oil, and the price is going to go down. Both of these factors will only be relevant to the cost of energy until the cost of space launch is lowered enough to put solar panels in orbit. This is not science-fiction. Space-based solar panels are much more efficient as the sunlight is 5.5 times stronger in space, and the panels always operate at 100% with no night. The power will get beamed to earth in the form of microwaves. With private space launches happening already, it is very likely that launch costs will be low enough by mid-century to generate most of our electricity from space.
Other reasons why oil isn't going up:
Any increase in the price of oil has a dampening effect on economic growth, decreasing the demand. It also causes new oil fields to come online that were previously unprofitable, increasing supply.
Conflict between major powers over resources, causing an oil price spike, is unlikely due to the current unprecedented level of US military dominance over the rest of the world. Both the US Navy and the US Air Force are several times more powerful than the rest of the world's navies and air forces combined. But with only 4% of the world's population, the US is oriented heavily towards dominating the world's oceans to ensure the flow of international maritime trade, rather than invading and occupying resource rich areas to secure them. (Iraq and Afghanistan are insignificant occupations with <5000 US casualties total)
Electric vehicles shift energy demand from oil onto natural gas and coal, although about 5% of world power generation is from oil.