What's the father's name of Z Ryan, general manager of Daqing Oilfield?
Zhang. According to Baidu Encyclopedia, Z Ryan is the general manager of Daqing Oilfield Co., Ltd. and his father is Zhang. Z Rui 'an, male, Manchu, deputy to the 14th National People's Congress, served as deputy general manager of Anniversary Oilfield Co., Ltd. (Anniversary Petroleum Management Bureau Co., Ltd.) in June, 2002/kloc-0.