Trim excess fat from the roast.
Heat oil in a large Dutch oven or pot. Add the meat. Brown on all sides.
Add broth, soup, and beer. Cook on low for 7 hours.
Toast buns. Thin slice the beef against the grain (or shred with a fork) and stack on bread. Cover with cheese and melt under broiler.
Strain sauce and serve with sandwiches for dipping.