PetroChina - the country's largest oil producer - saw first-half oil and gas output rise 2.1 per cent, with a marginal fall in domestic oil production more than offset by the booking of overseas output. The realised oil price surged 39.7 per cent year on year to US$28.10 a barrel, while the gas price was flat at $1.95 per thousand cubic feet. The company pumped oil and gas equivalent to 444.7 million barrels of oil in the first half, of which 386.4 million barrels was oil - up 0.6 per cent year on year. Gas production rose 13.5 per cent year on year to 349.6 billion cubic feet. Associate firm Devon Energy produced 3.36 million barrels - or 0.86 per cent of total output - in Indonesia. Domestic output fell about 0.3 per cent year on year to 383.04 million barrels. The company said its Daqing oilfield - the country's largest - produced 24.28 million tonnes of crude oil in the first half, down 1.05 million tonnes, or 4.14 per cent. The decline was largely offset by higher output in the Changqing, Xinjiang, Tarim and Jilin oilfields in northwest and northeast China. The company processed 297.1 million barrels of crude oil in the first half, up 6.1 per cent on the same period last year. The consensus 2003 net profit forecast of 23 analysts polled by Thomson First Call is 52.34 billion yuan (HK$49.3 billion), up 11.57 per cent from last year's 46.91 billion yuan.