China Oilfield Services (HKG:2883, SHA:601808) recorded a rise in attributable profit in the first half of 2025 to 1.96 billion yuan from 1.59 billion yuan in the year-ago period, a Tuesday Hong Kong bourse filing said.

The Chinese oilfield surveying services company's earnings per share were 0.4116 yuan in the half year, up from 0.3337 yuan in the corresponding period of the last year.

Revenue in the six months increased 3.5% to 23.3 billion yuan from 22.5 billion yuan a year prior.