Extension Petroleum’s trademark.

The YCPC trademark was applied for by Shaanxi Yanchang Petroleum (Group) Co., Ltd. on 2011-06-02.

Yangchang Petroleum has a long history. In 1905, the "Yangchang Petroleum Factory" was established in Yanchang County, Shaanxi Province with the approval of the Qing government. In 1907, the first oil well on land in China was drilled, ending the history of China not producing oil on land. . Yanchang Oil has made important contributions to China's revolution and economic construction, and is known as the "Meritor Oil Mine". In 1944, Comrade Mao Zedong wrote an inscription "Work hard" to encourage it. Since the reform and opening up, especially after two reorganizations in 1998 and 2005, Yanchang Petroleum has embarked on the fast track of sustainable development. In 2007, crude oil production exceeded 10 million tons. In 2010, sales revenue exceeded 100 billion yuan. In 2013, it entered the world's top 500 companies. In 2019, it completed 15.23 million tons of oil and gas equivalent, processed 13.52 million tons of crude oil, and produced 5.75 million tons of chemicals. The total assets at the end of the year reached 403.5 billion yuan. Its operating income and financial contribution have remained first in Shaanxi Province and among the top local enterprises in the country for many consecutive years. It has been awarded The third China Industrial Award, the National May Day Labor Certificate, Shaanxi Province Advanced Enterprise in Fulfilling Social Responsibility and many other awards.