China Oilfield Services Limited

China Oilfield Services Limited (COSL), based in Sanhe, China, operates as a global provider of comprehensive offshore oilfield services, catering to both the domestic Chinese market and international clients. This enterprise, a subsidiary of China National Offshore Oil Corporation, is also involved in the issuance of bonds. COSL's extensive operations are structured into four key business segments: 1. Drilling Services: This division supplies a diverse array of drilling solutions, utilizing various rig types such as jack-up, semi-submersible, modular, and land-based rigs. Complementary services include the installation of casing and tubing, as well as pipe inspection and repair. The segment's significant assets comprise 36 jack-up rigs, 12 semi-submersible rigs, and 6 modular rigs. 2. Well Services: Encompassing both onshore and offshore environments, this segment delivers a broad spectrum of specialized well interventions. These include logging, managing drilling and completion fluids, directional drilling, cementing operations, well completion and workover, stimulation techniques, and optimization strategies for oilfield production. 3. Marine Support Services: Offering crucial logistical and operational assistance, this segment's activities span anchor handling, towing of drilling rigs and engineering barges, oil transportation, offshore supply, standby duties, emergency response (firefighting, rescue, and oil spill support), and various other maritime support functions. Its substantial fleet consists of approximately 130 vessels, including anchor-handling tug/supply vessels, platform supply vessels, multi-purpose vessels, barges, and shuttle-tankers. 4. Geophysical Acquisition and Surveying Services: Dedicated to subsurface exploration, this segment conducts marine seismic data acquisition, offshore geological surveying, seismic data processing and interpretation, and underwater engineering. Its specialized equipment includes 6 seismic vessels, 2 ocean bottom cable teams, and 5 engineering surveying vessels.