Changqing Oilfield Changshi Group and Changhe Industry cooperated in the Jihuang block 37, and established the Daliangwan operation area on August 1, 2013 with SCP serving as a comprehensive oil production service provider. The operation area is located in Fanxue Township, Dingbian County, Shaanxi Province, covering an area of 48.1 square kilometers. Its main business covers crude oil production, crude oil processing, balanced water injection, gathering and transportation, and comprehensive management of oil production and operations. There are a total of 5 oil well areas and 2 gathering and transportation stations in the operation area.