Check Missouri gas prices today for regular, mid-grade, premium, and diesel fuel. The price tool below shows AAA-sourced daily averages, recent price movement, and a fill-up cost estimate for drivers across the Show-Me State.
What Affects Missouri Gas Prices?
- Heavy cross-country freight and commercial trucking demand along the I-70 and I-44 corridors
- Proximity to Mid-Continent refineries and regional pipeline supply networks
- High availability and blending of ethanol due to strong regional agricultural production
- Delivery distances to rural farming communities across the northern plains and southern Ozarks
- Missouri’s state motor fuel tax and local distribution fees
- High commuter demand in the St. Louis and Kansas City metro areas
Missouri Gas Prices by Fuel Type
- Regular: The standard baseline fuel (often blended with 10% ethanol) for most daily commuters and passenger vehicles.
- Mid-grade: Recommended for older high-compression engines or vehicles towing campers through the Ozarks.
- Premium: Necessary for luxury, turbocharged, or high-performance vehicles to prevent engine knocking.
- Diesel: Tracks closely with commercial freight, agricultural transport, and heavy-duty trucking across the state’s highway network.
Missouri Gas Prices vs Nearby States
Regional borders create noticeable price shifts in the Midwest. When planning cross-state trips, keep these comparisons in mind:
- Illinois gas prices and Kansas gas prices often differ due to varying state taxes, environmental fuel mandates, and Chicago or Kansas City metro market dynamics.
- Arkansas gas prices and Oklahoma gas prices fluctuate based on their respective pipeline access, refinery conditions, and local tax structures.
- Iowa gas prices, Nebraska gas prices, Kentucky gas prices, and Tennessee gas prices may be lower or higher depending on daily supply routes and municipal fees.
Tips for Getting Better Gas Prices in Missouri
- Compare station prices in St. Louis or Kansas City before heading onto rural stretches of I-70 or US-65.
- Fill up your tank before driving through remote, hilly areas in the southern Ozarks.
- Check your tire pressure regularly, especially during extreme Midwest winter cold and summer heat.
- Stick to regular unleaded (or E15 if your vehicle supports it) unless your manufacturer explicitly requires premium.
- Plan your diesel and fuel stops along major freight corridors before long commercial hauls.
- Avoid unnecessary idling in heavy metro traffic or at travel plazas along the interstate.
Missouri Gas Price FAQs
What is the average gas price in Missouri today?
The current daily averages for regular, mid-grade, premium, and diesel are displayed in the dynamic tool at the top of this page.
Why do St. Louis and Kansas City gas prices differ?
St. Louis is influenced by Midwest pipeline supply and Illinois border market dynamics, while Kansas City shares a metro market with Kansas, leading to different local transport costs and cross-border competition.
Does Missouri use special gasoline blends?
Missouri generally uses standard federal EPA fuel blends, though standard regular unleaded is typically blended with ethanol (E10). Many stations also offer E15, which can sometimes be cheaper depending on local incentives.
Is diesel included in Missouri gas price data?
Yes, the tool tracks Missouri diesel prices alongside unleaded options, which is essential for commercial truckers, agricultural transport, and RV travelers navigating the state’s major freight corridors.
Why can rural areas in the Ozarks cost more at the pump?
Stations in remote southern Missouri towns face less local competition and higher overhead costs for fuel delivery over long, hilly routes from major interstate distribution hubs.
