Shengli oilfield Doro petrochemical Co ., Ltd ,the predecessor of Shengli Doro Energy Corp., Ltd, was founded on August 16,2005.
In January 2011, the shareholder investment increased further, the registered capital of the company after the investment reached 5.2533 million RMB.
In October 2014, after two equity transfer, the company became a subsidiary of SHENGLI OIL FIELD YANTAI GOODS AND SUPPLIES CO.,LTD, the company registered capital has reached 60 million RMB.
February 2014 to promote the further development of the company, by the shareholders' meeting, the registered capital increase of 75 million RMB.
In December 2014, DORO Petrochemical Company acquired six companies that are under the control of the of the shares of Shengli Oilfield Yantai Materials company.
In February 2015, Shengli Oilfield DORO Petrochemical Co., Ltd. restructured into a joint-stock company that is Shengli Doro Energy Corp.,Ltd.
In May 2015, according to the first Extraordinary shareholders' general meeting , the company will increase the registered capital of 105 million RMB.
On July 10, 2015, DORO successfully listed in NEEQ (National Equities Exchange and Quotations) ,STOCK CODE: 832883; becoming China's first liquefied natural gas industry's new three board listed companies.
In June 2016, Doro successfully entered innovation layer and became one of the only two of Dongying City.
In December 2016, DORO sucessfully became a national high-tech enterprise.