# China Oilfield Services

- Headquarters: China
- Sectors: [Power Generation Equipment](https://endata.com/sectors/power-generation-equipment.md)


## Customers, suppliers and deals

- [Yangzhou Runda Oilfield Chemical Co., Ltd.](https://endata.com/companies/94364.md): supplier, 1×, latest 2026-09-30

## Announcements (2)

- 2026-09-30: [COSL awards polyether amine supply contract to Yangzhou Runda](https://endata.com/announcements/112894-cosl-awards-polyether-amine-supply-contract-to-yangzhou-runda) (Contract · China · $6.30M)
- 2022-10-25: [COSL signs $1.9 billion drilling rig service contracts with Middle East oil company](https://endata.com/announcements/72433-cosl-signs-1-9-billion-drilling-rig-service-contracts-with-middle-east-oil) (Contract · $1.90B)

---
Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.