• COSL posted first-half revenue of RMB 23.73 billion, up 1.9%, while profit for the period rose 2.8% to RMB 2.13 billion.
• Operating profit climbed 16% to RMB 3.38 billion; basic earnings per share increased to RMB 0.42 from RMB 0.41.
• Drilling services revenue rose 3% to RMB 7.45 billion, supported by higher semi-submersible activity; rig available-day utilization held at 93.7%.
• Well services revenue increased 1.5% to RMB 12.55 billion, helped by higher overseas integrated revenue; marine support segment operating profit fell 54.5% to RMB 72.2 million.
• Management flagged oil-price volatility and geopolitical risks, while targeting overseas expansion and technology-led growth in the second half.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. COSL - China Oilfield Services Limited published the original content used to generate this news brief via IIS, the regulatory disclosure system operated by the Hong Kong Stock Exchange (HKex) (Ref. ID: HKEX-EPS-20260907-12323016), on September 07, 2026, and is solely responsible for the information contained therein.