Who knows how many units Yanchang Petroleum has in Xi 'an?

Xi 'an Branch (formerly Shaanxi Petrochemical Industry and Trade Company), the sales company of Yanchang Petroleum (Group) Co., Ltd., is located at Yanta Middle Road 1 18, Yanta District, Xi City. In 2005, with the integration and reorganization of northern Shaanxi Petroleum, it was renamed xi 'an Branch of Shaanxi Yanchang Petroleum (Group) Co., Ltd., which is the address of Shaanxi Yanchang Petroleum (Group) Co., Ltd., an operating company with refined oil wholesale qualification in Shaanxi, and belongs to the group company; Shaanxi xinghua Group Company Shaanxi Huajian Engineering Company Yanchang Petroleum West Oak Company Yanchang Petroleum Hotel Management Company Beijing Petrochemical Engineering Company Shaanxi Photovoltaic Industry Co., Ltd. Northwest Petrochemical Research Institute Shaanxi Light Industry Research and Design Institute Yanchang Petroleum Yulin Coal Chemical Company Xi Anyanlian Industry and Trade Company Yanchang Petroleum Materials Company