CompanyGraph
CNOOC Ltd.
600938 · SSE · Hong Kong
Drills for oil and gas in China's offshore waters under long-term government contracts that no foreign company can legally hold.
CNOOC extracts crude and gas from China's offshore continental shelf — Bohai Bay, the Pearl River Mouth Basin, and the East China Sea — under production sharing contracts issued by the Ministry of Natural Resources, which are the only legal instrument that permits any entity to drill in Chinese territorial waters. Once a contract is in place, all produced volumes must travel through subsea pipelines to PetroChina's onshore processing terminals in Guangdong, Tianjin, and Shanghai, because there is no offshore storage large enough to absorb continuous output from multiple platform clusters — so if terminal throughput at those facilities is constrained, the reservoirs and platforms cannot be fully monetised regardless of what they could physically yield. The exclusive access and the dependency are the same structure: the Ministry grants the contracts, mandates the flow path, and controls the counterparty that receives the volumes, meaning a change in contract terms or terminal allocation could hollow out the economics while the legal exclusivity remained on paper. Foreign competitors cannot enter at all — Chinese maritime sovereignty law bars them outright — but that protection comes from the same sovereign authority that can rewrite the rules.
How does this company make money?
The company sells the crude oil and natural gas it extracts, but the prices it receives are set by China's National Development and Reform Commission — not by open market negotiation. Once the costs of developing the wells and platforms have been recovered, the production sharing contracts require the company to hand a share of its remaining revenues back to the Chinese government. What is left after that cost recovery and government share is the company's earnings.
What makes this company hard to replace?
The production sharing contracts run 20 to 30 years and cannot be handed to a different operator without Ministry of Natural Resources approval, so there is no quick way to bring in an alternative supplier. The subsea pipelines connecting the offshore blocks to state refineries were built specifically for this setup — any alternative supplier would need to build entirely new pipeline infrastructure. Offshore platform maintenance is also tied to Chinese shipyards that other operators cannot easily access or redirect.
What limits this company?
Typhoon seasons in the South China Sea shut down platforms and halt drilling for three to four months every year. All the major work — completing new wells, connecting pipelines, installing seafloor equipment — has to be squeezed into the remaining weather windows. Spending more money cannot buy more time, because the block is a storm calendar, not a budget.
What does this company depend on?
The company cannot operate without production sharing contracts from China's Ministry of Natural Resources, which are the only legal key to offshore drilling. It also relies on FPSO vessels strong enough to survive Category 4 typhoons, subsea pipeline connections to PetroChina's onshore processing terminals in Guangdong Province, deepwater semi-submersible drilling rigs rated for water depths beyond 3,000 meters, and LNG processing facilities at the Hainan and Shenzhen terminals.
Who depends on this company?
PetroChina's coastal refineries in Guangdong get 15 to 20 percent of their crude supply from this company — if production stopped, those refineries would have to find that feedstock elsewhere on short notice. China's LNG import terminals at Shenzhen and Zhuhai depend on the company's offshore gas to meet regional demand. State Grid's coastal power plants in Jiangsu Province use that gas as their main fuel for handling peak electricity load, and without it they would have to find another source fast.
How does this company scale?
Once the seafloor templates and pipelines are in place for a given reservoir, additional wells can be drilled into that same reservoir at relatively low extra cost — the expensive foundation is already there. What cannot scale as easily is platform capacity, because semi-submersible hull designs have physical limits that cannot simply be expanded. And every new offshore block needs its own separate platform cluster, because the pipeline distances make sharing infrastructure between blocks impractical.
What external forces can significantly affect this company?
Territorial disputes with the Philippines and Vietnam over the South China Sea block access to exploration blocks around the Spratly Islands. U.S. technology export controls limit the company's ability to buy advanced subsea equipment from Baker Hughes, Halliburton, and similar suppliers. At the same time, China's carbon neutrality targets are pushing the country to produce more natural gas domestically to replace coal in power generation, which creates pressure to expand output.
Where is this company structurally vulnerable?
The Ministry of Natural Resources and the National Development and Reform Commission control every lever that turns extracted oil and gas into money: the contract terms, the prices, and the pipeline routes. If the Ministry shortened contract durations, tightened the rules for recovering development costs, or routed production to terminals that cannot handle the volume, the company would still hold its exclusive contracts in name — but the actual income from them would collapse.