Regular unleaded gasoline has an octane greater than or equal to 85 and less than 88. Midgrade motor gasoline has an octane greater than or equal to 88 and less than or equal to 90, which includes some octane boosters (this includes E-10 in Nebraska). Premium gasoline has an octane greater than 90.
Today's average state price and average metro prices for motor gasoline can be found in the Daily Fuel Gauge Report. Average monthly prices can also be viewed for the state and the following cities: Columbus, Grand Island, Lincoln, Norfolk, North Platte, and Omaha.
Weekly average prices are also available.
A general rule of thumb: A dollar increase in the West Texas Intermediate (WTI) crude oil price per barrel will result in a 2.5–cent increase in the price of gasoline per gallon. Likewise, a dollar decrease in the WTI crude oil price per barrel will result in a 2.5–cent decrease in the price of gasoline per gallon.