The Tuba field is situated in southern Iraq between the Rumaila and Zubair fields and was discovered in 1959 by the Basra Petroleum Company. It has since been held under the control of the Ministry of Oil via various subsidiary companies. Tuba is still under state control currently operated by the South Oil Company (SOC). The field was not included in Iraq's 2009 petroleum licensing rounds and the Oil Ministry's development plans are uncertain. The state run SOC initiated a partial development project and production started in 2009 at around 10 000 b/d. Although the production facilities have a processing capacity of 50 000 b/d the field is unlikely to be able to achieve production at this level. Bottlenecks in infrastructure and increases in production at neighbouring fields mean that production at Tuba will remain constrained for the foreseeable future.