Wikipedia
PetroKazakhstan
PetroKazakhstan is a Canadian oil company, based in Calgary, that has all of its business focused on Kazakhstan where it had some of oil and of natural gas reserves (January 2005 estimate) in the Turgai basin region. These are the second largest Kazakhstani proven reserves after ChevronTexaco's TengizChevroil. Estimated production is of oil per day. In 2005, PetroKazakhstan was acquired by China National Petroleum Corporation and then in 2006 transferred to PetroChina.