Propane Atlas

Propane in Mills

2 propane locations in Mills, WY.

Of the 2 propane locations listed in Mills, 1 offers tank exchange and 1 delivers.

Nearby cities in Wyoming with listed propane: Casper (24 locations, about 2 mi), Glenrock (3 locations, about 26 mi) and Midwest (1 location, about 39 mi).

2 locations

AmeriGas Propane

3401 West Yellowstone Hwy, Mills, WY

Delivery

Tank exchange in Mills (1)

Stores listed by the exchange brands' own retailer locators as carrying swap cages for grill-size cylinders. A listing is not a stock check, so call ahead if you need a tank at a particular hour.

Homax #1

400 Salt Creek Hwy, Mills, WY 82644

Tank Exchange · Blue Rhino

Directions Call store

Listed in Blue Rhino's retailer locator, checked Sep 27, 2026.

Before you go

Refill vs. Tank Exchange: What You Actually Get

Exchange trades a tank; refill sells you gas by the gallon. The difference in what you get home with is larger than most people expect.

When Does a Propane Tank Expire?

Twelve years from the date stamped on the collar, then a requalification interval that depends on the test method. An out-of-date cylinder cannot legally be refilled.