By December 19 2009, annual output of Changqing Oilfield located in western China surpassed 30 million tons oil equivalent, only second to Daqing Oilfield. Changqing Oilfield has the most late-development advantage in oil and gas growth and it has become China's important strategic energy replacement area and the hub of onshore natural gas network. So it is irreplaceable in ensuring national energy security and developing the western region. After 40 years of hard work, Changqing Oilfield Company has tackled the world-class problem of "low-permeability" oil and gas field development. The cumulative crude oil output in the oilfield totaled 134 million tons and the cumulative natural gas output totaled 84.066 billion cubic meters. Even in 2009 when the financial crisis spread throughout the world, the company has made historic breakthroughs in the growth of oil and gas reserves and production. It made new contributions to ensure national energy security, optimize energy structure and promote rapid development of national economy.
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