China National Petroleum Corporation (PetroChina) has maximized domestic gas production while ensuring sufficient gas imports during the cold snap.
PetroChina, the country's largest oil and gas producer by annual output, contributed 11.3 percent of China's extra gas demand during the heating season.
China has seen a 10 percent year-on-year increase in daily gas demand since Nov.15 when the heating started.
PetroChina will supply 98.67 billion cubic meters of gas during the heating season, marking n on-year increase of 10 billion cubic meters.
To ensure sufficient gas supply, PetroChina has stepped up gas imports, negotiating with countries including Russia and Myanmar and increasing the gas imports from the China-Russia East natural gas pipeline in advance.
PetroChina's domestic gas fields also contributed to ensuring the supply, with the Changqing oilfield's production hitting a record-high by exceeding 60 million tons of oil - equivalent to crude oil and natural gas in 2020.


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