It happened Sept. 4 around 5:45 p.m. at the Haverford Freedom Service Station on the 7400 block of Haverford Avenue in Overbrook Park.
Once inside, one suspect brandished a handgun and demanded money. A male employee gave over $150 but the suspects demanded all of the money.
Police say one of the men struck the employee with the gun, causing a minor cut near his eye.
The suspects demanded money again and one of them allegedly threatened to kill the victim and began counting down.
Police say the employee picked up a metal chair and charged towards the suspects. Both men fled on foot and down a nearby alleyway.
The first suspect is described as a black male, 20-30-years-old, 6 feet tall, with a thin build. He was last seen wearing a black jacket with a hood and was armed with a silver revolver.
The second suspect is described as a black male, 20-23-years-old, 5'8" tall, with a stocky build and a light complexion. He was last seen wearing a light colored jacket with a hood.
Anyone with information is asked to contact 911. To submit a tip via telephone, dial 215.686.TIPS (8477) or text a tip to 773847.