No. 2 fuel oil prices can be found on The U.S. Energy Information Administration website at eia.gov. From there, go to the Sources & Uses tab and click Petroleum & Other Liquids, and then click on Prices under the Data tag and click Weekly Heating Oil & Propane Prices.
Prices on No. 2 fuel oil are only tracked during the heating season from October to March. No. 2 is also known as heating oil because it is used as fuel for burners to heat homes and some small businesses during colder months. No. 2 fuel and diesel fuel are derived from crude oil the same way and remain the same until additives are injected into each. No. 2 fuel can be used by diesel engines but are against regulation due to EPA requirements.