In a 5- to 6-quart pan over medium-high heat, frequently stir bacon until almost crisp, 10 to 12 minutes. Discard all but about 2 tablespoons fat. Add onion, celery, carrot, and garlic.
Stir often until vegetables are limp, about 15 minutes. Add oregano, chili, broth, beer, pepper, Worcestershire, and beans. Bring to a boil, cover, and simmer to blend flavors, 20 to 30 minutes. Add cilantro, then salt to taste.