Xi’an Sea Castle Oil Company (hereinafter referred to as SCOC) is located in the Geographical center of China ---- Xi'an. Xi'an is one of the cradle of the Chinese Nation and the Oriental Civilization, is the starting point of "The Silk Road". Xi'an, Rome, Athens, Cairo, are the world's four largest ancient capital, is the No. 1 of the six ancient Chinese capitals. Xi'an is the scientific research, higher education, national defense science, technology and industry and high-tech industry center of China, Xi’an is the financial, science and technology, education, tourism, business center of central and western regions, Xi’an is the oil city and oil equipment city, the 1st largest oilfield ---- Changqing Oilfield and the 7th largest oilfield ---- Yanchang Oilfield are located in Xi’an, the largest manufacturer of rigs and logging tools in Asia are also located in Xi'an.