Romashkino Field is an oil field located in the Leninogorsky District of southeastern Tatarstan, Russia. It was discovered by the Soviet Government in 1944 within the village of Romashkino and began production in 1948.
The site is currently operated by Tatneft and serves as the largest oil field in the Volga-Ural Basin. As of July 2025, approximately 3.5 billion tonnes of oil had been extracted from the field.