A derrick is connected to a metal tank by a series of pipes. Visible in the photo, escaping from the well and the tank, is a smoky mist.

Credit: Courtesy the Drake Well Museum, PHMC Bureau of Historic Sites and Museums

Natural gas was often found near oil deposits. This gas well near Titusville, Pennsylvania, produced 4,000,000 cubic feet of gas per day, which was piped 4 miles to Titusville and supplied the town with fuel.