At Liaohe, Zhou met Wang Shuhua (Chinese: 王淑华), a factory worker from Hebei province, whom he later married. As the Liaohe exploration team grew, Zhou eventually became responsible for over 2,300 employees in his department. His work consisted mainly of leading teams to unexplored, barren territory to conduct site surveys to assess the potential for Future oil drilling. He was known to be great at maintaining good interpersonal relationships with his superiors and subordinates, and gained significant personal clout. During some years, Zhou did not go back to his home in Jiangsu even during the Chinese New Year holiday period, which is a time traditionally reserved for family reunions. Instead, Zhou would visit his colleagues who were working in harsh winter conditions in remote areas. Beginning in the 1970s, Zhou would gain rapid career advancement. He owed much of his career growth to his mentors from the Beijing Institute of Petroleum, who were working in executive positions at the Liaohe oil fields at the time. In particular the university's President was known to be fond of Zhou's skills and was eager to promote him. In 1983, with the Director of the Liaohe Oil Field Management Bureau being transferred for a job in Beijing, Zhou was promoted to manage day-to-day affairs of the oil field. Moreover, given the oil field's prominence in the municipal affairs of the city of Panjin, Zhou became concurrently the Mayor of Panjin and the city's deputy party secretary. Zhou's stint as mayor was his first major role in government.