As I understand it, G. Heileman sold the Old Style brand, but not the recipe. The original Old Style recipe is reputedly[0] brewed under the La Crosse Lager lab

As I understand it, G. Heileman sold the Old Style brand, but not the recipe. The original Old Style recipe is reputedly[0] brewed under the La Crosse Lager label, by City Brewery. [0] I've read it in various reviews; confirmed with acquaintances who have sampled original Old Style, new Old Style, and La Crosse Lager; and got the "we can neither confirm nor deny" plus eye wink when I asked their brewer at a beer festival. And I'm just some guy on the internet, so all this is quite speculative.