Yantai Jereh Oilfield Services' (SHE:002353) net profit attributable to shareholders for the first half fell 3.6% to 1.20 billion yuan from 1.24 billion yuan a year earlier, according to a Friday disclosure on the Shenzhen bourse.
Earnings per share dropped 3.3% year on year to 1.18 yuan from 1.22 yuan.
Operating revenue rose 11% to 7.65 billion yuan from 6.90 billion yuan in the previous year.
The oil equipment manufacturing company's shares jumped 5% during the morning trade.