Distance between cities › USA › Wyoming › Shell, WY › Distance from Shell to Marathon Book Hotels

Distance from Shell, WY to Marathon, TX

Distance

1,277 mi

Time

23 hours 6 mins

Gas Cost

$119 - $231

There are 1,020.52 miles from Shell to Marathon in southeast direction and 1,277 miles (2,055.13 kilometers) by car, following the US-87 route.

Shell and Marathon are 23 hours 6 mins far apart, if you drive non-stop .

This is the fastest route from Shell, WY to Marathon, TX.

Please note the time difference between Shell, WY and Marathon, TX is 1 hour. The current time in Shell is 7:34 am and the current time in Marathon is 8:34 am.

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Lowest Price Rental Cars in Shell, WY

Planning on renting a car to go from Shell, WY to Marathon, TX? Here there are some offers to rent a car in Shell, WY

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Shell »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 51.29 gallons of gas to cover the route between Shell, WY and Marathon, TX.

The estimated cost of gas to go from Shell to Marathon is $167.32.

During the route, an average car will release 1,004.97 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Shell, WY and Marathon, TX

If you want to meet halfway between Shell, WY and Marathon, TX or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 38.089255 and -104.696271, or 38º 5' 21.318" N, 104º 41' 46.5756" W. This location is 638.62 miles away from Shell, WY and Marathon, TX and it would take approximately 11 hours 33 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest and also the major city is Pueblo, CO, situated 614.28 miles from Shell, WY and 663.28 miles from Marathon, TX. It would take 10 hours 42 mins to go from Shell to Pueblo and 12 hours 24 mins to go from Marathon to Pueblo.