[3] China United Coalbed Methane Corp., Ltd. was founded by two ministries and one state-owned enterprise of the State Council of the People's Republic of China in 1996 (China National Petroleum Corp., Ministry of Coal Industry [zh] and Ministry of Geology & Mineral Resources [zh]).

[3] Under the Regulation on Sino-foreign Cooperation in the Development of Continental Petroleum Resources, which was revised on 2001,[4][2] the corporation was the monopoly to sign deal with foreign industry to explore and produce coalbed methane.

Although in 2007 another revise of the regulation giving the state council nominate other company in case-by-case basis.

[7] China National Coal Group was the sole shareholder from 2009 to 2010, which acquired 50% stake from PetroChina.

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