Mills' Premier Craft Beer Destination
Wyoming's Fastest-Growing Small Town Deserves a Brewery Worth the Drive
Mills residents know how to recognize something built right. As one of Wyoming's consistently fastest-growing communities - ranking among the state's top towns for annual population growth multiple years running - Mills is a place where working families have put down roots and younger residents are building lives they're proud of. That kind of community values things worth seeking out, including a cold, handcrafted beer poured in a taproom that was designed for people who've earned a good evening.
Gruner Brothers Brewing sits just minutes from Mills in the heart of Casper, housed inside the historic old Petroleum Club building with sweeping views of Casper Mountain from the patio. We've been brewing Wyoming-made beer from the start - not the kind shipped in and slapped with a regional label, but genuine small-batch craft beer made on-site by two brothers who grew up in this state and know exactly what hardworking people deserve after a long day. Mills families and workers have made our taproom part of their regular rotation, and we're proud to be part of this community's social fabric.
A Taproom Built for Communities That Work Hard and Play Harder
Our tap list offers range for every mood, from lighter easy-drinking lagers to fruit-forward ales and big, bold IPAs. We rotate seasonal offerings throughout the year, so you're never drinking the same thing twice if you'd rather explore. The taproom runs Tuesday through Saturday evenings, with Saturday afternoons available for those who like to get the weekend started right. Live music nights bring Mills and Casper regulars together under one roof, and private event space makes us a natural choice for group celebrations, work gatherings, and personal milestones.
Petro Pub keeps the food side covered with scratch-made flatbread pizzas, shareable starters, and hand-held favorites - because an evening worth having usually involves something good to eat alongside something great to drink. Brewery tours are available for those who want to understand what makes a great pint before they order their second one.
When you're ready to find the craft brewery that Mills and the surrounding Natrona County community keeps talking about, stop in for a visit and see what all the conversation is about. Your new favorite beer might be waiting on tap right now.
Results Mills Customers See
What brings Mills residents back isn't any single thing - it's the combination of quality, character, and community that walks through our door every time we open. We've built a taproom that earns its reputation one satisfied customer at a time, and the word-of-mouth from Mills speaks for itself.
- A rotating lineup of craft beers brewed on-site in Casper, with new releases keeping regulars coming back for something different
- A welcoming, non-chain atmosphere where you feel like a regular from the very first visit
- Live music events and seasonal celebrations that give the Natrona County community a genuine reason to gather
- Food from Petro Pub available in-taproom - flatbread pizzas, shareable bites, and hand-held favorites for every table
- A Mug Club built for dedicated craft beer fans who want to make this their permanent home base
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