Trends in Energy Prices
Heating oil, like other forms of energy, is a commodity traded on the open market, so you can expect ups and downs in its price. Adjusted for inflation, heating oil prices actually dropped 23% during the 1980s and 1990s. A series of international events and growth in the world economy has pushed all energy prices up in the past few years, but as the infrastructure for energy production and distribution adjusts, prices are expected to moderate.
Source: U.S. Dept. of Energy