Oil prices have been low for quite some time. Would it be a good idea to invest a small percentage of my savings into oil futures?

I earned my futures trading license in 1973. I think this is the first time I've ever seen "savings" and "futures" used in the same sentence! From a financial standpoint, these two words are polar opposites. Money used to trade futures is money you can afford to lose entirely while not having a major impact on your lifestyle. Is that what your "savings" are for? 
If you think the price of oil is going to go up, look at building a portfolio of Exchange Traded Funds that are based on companies involved in the exploration for and production of oil and natural gas. Learn, thoroughly, that segment of the financial markets before you venture into futures. The lessons you learn from stock (ETF) investing will stand you in good stead for much larger, more complex and riskier markets later.

Aside from being in the business of insurance, I'm also a registered Commodity Trading Advisor.  I am so sick and tired of the mainstream "investment" community being so negative against trading futures and recommending ETFs instead.  ETFs don't always correlate well with the underlying financial instrument.  Trading futures is risky, yes, you can lose your money.  It also has a better tax treatment if you're looking to trade short term (under a year).  Bottom line, it's a tool that can be utilized - for better or for worse.  Do your homework, figure out what your goal is and what your exit plan is - both good and bad.COMMODITY TRADING INVOLVES SUBSTANTIAL RISK OF LOSS AND IS NOT SUITABLE FOR ALL INVESTORS.