Which Oklahoma city is known for its oil boom in the 1920s?

Tulsa is widely recognized as the center of the oil boom in Oklahoma during the 1920s. The discovery of oil in the area significantly transformed the city's economy and infrastructure, making it a bustling hub for the oil industry. This period saw a rapid growth in population and the establishment of numerous oil companies, which led to substantial investment in the city and infrastructure. The wealth generated from oil contributed to the emergence of Tulsa's skyline, complete with Art Deco architecture that is reflective of its prosperous era.

Oklahoma City, while important, did not experience the same explosive growth from oil during the 1920s as Tulsa did. Norman and Stillwater are more known for their educational institutions and do not have the same historical association with the oil boom as Tulsa. Thus, Tulsa's role at the center of this critical economic development in the 1920s definitively establishes it as the correct answer.