Chunxiao gas field
The Chunxiao gas field (Chinese: 春晓油气田) is a natural gas field below the East China Sea within the Chinese Exclusive Economic Zone, about 4 km to the west of the EEZ border claimed by Japan which is disputed by China. The Chunxiao gas field is the first of a group of four natural gas fields in the Xihu Trough being developed by China: the other ones are Tianwaitian, Duanqiao, and Canxue.
Production from the field started on January 28, 2006. CNOOC and Sinopec operate the site. Unocal and Shell withdrew from the project in late 2004 for reasons of high costs, unclear reserves, and the territorial dispute. CNOOC estimates net oil reserves of the field at 3.8 million Barrels of oil, and 168.6 BCF of natural gas.
In 1995, the People's Republic of China discovered the undersea natural gas field in the East China Sea. The field lies within the Chinese EEZ, although Japan believes it is possibly connected to reserves beyond its claimed median line of the East China Sea. Japan maintains that, although the Chunxiao gas field rigs are on the PRC side of a median line that it regards as the two sides' sea boundary, China may tap into a field that stretches underground into disputed areas. In June 2008, both sides agreed to jointly develop the Chunxiao gas fields.
- "CNOOC taps gas field amid border flap with Japan." Wall Street Journal. April 6, 2006, p. A13.
- http://www.eia.gov/emeu/cabs/East_China_Sea/Full.html EIA Country Analysis Briefs, East China Sea, March 2008
- Kim, Sun Pyo (2004). Maritime delimitation and interim arrangements in North East Asia. The Hague: M. Nijhoff. p. 285. ISBN 9789004136694.
- Bush, Richard C. (2010). The perils of proximity: China-Japan security relations. Washington, D.C.: Brookings Institution Press. p. 76. ISBN 9780815704744.
- Fackler, Martin (19 June 2008). "China and Japan in Deal Over Contested Gas Fields". The New York Times.
- Major properties under production and development. CNOOC Limited. Retrieved Nov. 1, 2005.
- Chunxiao oil/gas field to be completed this October. People's Daily Online. April 21, 2005.
- Little progress in gas field talks between Japan and China. Foreign Press Center Japan. June 6, 2005.
- Geological structure of Chunxiao gas field (in Russian)