Mollie is an extinct American village in Blackford County, Indiana, that flourished during the Indiana Gas Boom from the 1880s until the 1920s. The region around Mollie experienced an economic "boom" period because of the discovery of gas and crude oil. Mollie was a stop along the Fort Wayne, Cincinnati, and Louisville Railroad—and happened to be near the region's oil fields, a convenient location for the area's oil workers.