COSL ( China Oilfield Services Limited) is a leading comprehensive solution provider of integrated oilfield services in offshore China. Our core services are Drilling Services, Well Services, Marine Support and Transportation Services and Geophysical Services, which cover each phase of oil and gas exploration, development and production. COSL possesses the largest fleet of offshore oilfield services facilities in China, including Asia’ s most advanced 400-feet drilling rig and 8-streamer dual-detector seismic vessel. Our fleet includes 16 drilling rigs, 6 land rigs, 73 supply vessels for various services, 4 oil tankers, 5chemical carriers, 8 seismic vessels, 4 surveying vessels and a vast array of modern facilities and equipment including FET, LWD, and ONTRAK Tools for logging, drilling fluids, directional drilling, cementing, well completion and workover services. COSL’ s relatively completed oilfield service chain can achieve a win-win cooperation between the Company and its clients through single or turnkey services.

COSL has established its unique corporate image, cultural spirit, performance guidelines, core values and staff code of conduct following years of engagement in production, business and operation management. Backing our development strategies and mission is our corporate spirit “Always Do Better”, under which we host our corporate cultural activities that cover a wide-ranging and are warmly welcomed by our staff members. These activities help enrich the depth of our corporate culture, creating a harmonious ambience that is conducive to gather, nurture, incentivize talents. This blend of corporate culture, an outcome of years of refinement and sublimation, has been gradually evolving into a momentum featuring unrelenting urges to influence, gather, sympathize, propel and compete, driving the Company’s ongoing development.