A refinery was built the following year, and in 1929, the town of Hobbs was officially incorporated. The small, isolated settlement expanded rapidly following the discovery of oil by the Midwest Oil Company in 1927. By 1911, about 25 landowners lived in Hobbs. In 1910, the Hobbs post office opened, with James Hobbs as the first postmaster. Hobbs was founded in 1907 when James Isaac Hobbs (1852–1923) established a homestead and named the settlement. Hobbs is the principal city of the Hobbs, New Mexico micropolitan statistical area, which includes all of Lea County. Its population was 40,508 at the 2020 census, increasing from 34,122 in 2010. Hobbs is a city in Lea County, New Mexico, United States.