(Adds new development projects; estimated output for 2021/2022)
SINGAPORE, Jan 13 (Reuters) - China's offshore oil and gas major CNOOC Ltd is planning to lift capital spending to 85 billion to 95 billion yuan ($12.34 billion-$13.79 billion) this year, the highest since 2014, as it focuses on domestic drilling, it said on Monday.
Last year's capex budget was 70-80 billion yuan.
The state-owned firm said it is targeting total net oil and gas output this year of 520-530 million barrels of oil equivalent (boe), an increase from last year's estimated output of 503 million boe.
The firm's latest estimate of 2019 production was well above an earlier target at 480-490 million boe.
Production from offshore China will account for about 64% of the 2020 target and overseas operations 36%, the company said.
CNOOC also estimated that its net production would reach around 555 million boe in 2021 and 590 million boe in 2022.
It expects to bring on stream ten new projects in 2020, mostly offshore China, such as block 4 of the Penglai 19-3 oilfield, phase II of Penglai 19-9, Qinhuangdao 33-1 South oilfield phase I and Bozhong 19-6 gas field's pilot development.
Also among the new projects are Liza phase I of Guyana and Buzzard oilfield phase II in the United Kingdom, with the Liza operation already starting production ahead of schedule, it said. ($1 = 6.8882 Chinese yuan renminbi) (Reporting by Chen Aizhu; Editing by Jan Harvey and Raju Gopalakrishan)