PetroChina's domestic oil and gas production in H1 totaled 837.3 million barrels of oil equivalent, 1.0% higher than the year-ago level of 828.9 mmboe, it said on Sunday.
Domestic marketable natural gas output rose 2.4% year over year to 2.664 trillion cubic feet from 2.603 tcf, according to its half-yearly results.
"The company fully tapped the potential of mature oil and gas fields to improve recovery rates, accelerated the construction of shale oil and shale gas projects, including Daqing Gulong, Xinjiang Mabei Fengcheng and western Chongqing in the Oil and Gas Field, and promoted the large-scale production ramp-up of deep coalbed methane in Daji Gas Field and other gas fields," it said.
PetroChina recorded six new discoveries and 19 new developments during the period.
The company's refining business processed around 655 million barrels of crude oil and produced 54.4 million tons of refined products. It said its domestic market share of refined products increased by 0.2 percentage points year over year.
Natural gas sales totaled 161.22 billion cubic meters in H1, up 3.9% from year-ago levels. Of the total volume, domestic sales accounted for 124.89 bcm, 1.1% higher than a year earlier.
PetroChina's green and low-carbon transition business generated 5.07 terawatt-hours of wind and solar power, 1.4 times the previous year's output. External power supply rose 1.5 times to 2.81 TWh.
During the period, the company added 2.87 gigawatts of new wind and solar capacity, bringing total installed capacity to 20.12 GW.