The burglars, wearing balaclavas, were disturbed by the occupants at the Plough Inn, Weston Rhyn.
The fled on foot but may have had a car parked some distance from the premises.
A West Mercia Police spokesperson said the break-in happened at around 6am today. Entry was gained via a door.
A quantity of cash was stolen from gaming machines and a pool table.
“We are appealing for witnesses or any information which might assist the investigation,” added the police spokesperson.
Information to Oswestry police station on the 101 non-emergency number or to the anonymous independent Crimestoppers charity by calling 0800 555 111.