Oklahoma IFTA Rates & Trucking Overview 2026
Oklahoma ties Missouri at 19.0¢/gal as the second-lowest diesel rate in the US — only Mississippi (18.4¢) is cheaper. Oklahoma City is at the crossroads of I-40 and I-35, two of the nation's highest-volume freight interstates, making OKC a natural fueling hub. The Will Rogers Turnpike connecting Tulsa to Joplin, MO is toll-based but essential for east-west commerce.
Major Oklahoma Trucking Routes
I-40 (Amarillo TX–Oklahoma City–Fort Smith AR), I-35 (Dallas TX–Oklahoma City–Wichita KS), I-44 (Tulsa–Oklahoma City–Lawton–Texas), I-244 (Tulsa inner loop), Will Rogers Turnpike (I-44, Tulsa–Joplin MO)
Any driver on I-40 or I-35 should top off fuel in Oklahoma. Arkansas to the east (28.5¢) is 9.5¢ more expensive; Kansas to the north (26.0¢) is 7¢ higher; Texas to the south (20.0¢) is nearly identical. Oklahoma's energy sector generates enormous freight: oil field services, pipeline equipment, and refined products move constantly on I-35 and US-81 corridors.
Oklahoma IFTA — Frequently Asked Questions
What is Oklahoma's IFTA diesel tax rate in 2026?
Oklahoma's diesel rate is 19.0¢/gal — tied with Missouri as the second-lowest in the US behind only Mississippi (18.4¢). Fuel in Oklahoma whenever possible, especially before entering Arkansas (28.5¢) or Kansas (26.0¢).
Who administers IFTA for Oklahoma-based carriers?
Oklahoma IFTA is administered by the Oklahoma Tax Commission. File quarterly at oktax.state.ok.us. Oklahoma's low rate makes it an attractive IFTA base state — Oklahoma-based carriers frequently receive IFTA credits from higher-rate states.
What makes Oklahoma City a strategic freight hub?
OKC sits at the exact center of the US at the I-35/I-40 intersection. I-35 is the primary NAFTA corridor north-south; I-40 is the primary east-west Route 66 successor. Fuel, food, and rest facilities cluster around OKC exits. Distribution center growth has been rapid in the past decade.
Does Oklahoma have turnpike tolls affecting trucking costs?
Yes. Oklahoma has an extensive turnpike system including the Will Rogers (I-44 Tulsa–Joplin), Turner (I-44 OKC–Tulsa), and several others. PlatePay and PIKEPASS are the primary payment methods. Toll costs are separate from IFTA and add to operating costs on Oklahoma toll corridors.