In 1963, drilling activities for natural gas decreased about 20 percent from 1962. Thirty-three wells were drilled to the Medina-Queenston gas sands. Nine wells tested the formations below the Medina-Queenston. Thirteen wells were completed to the Oriskany and 6 to the Onondaga. There were 225 oil-field development wells drilled in 1963. Oil production increased by 5.7 percent due to the increase in production from the Chipmunk oil horizon.