Assa North-Ohaji South (ANOH) is a conventional gas development located onshore Nigeria and is operated by The Shell Petroleum Development Co of Nigeria. According to GlobalData, who tracks more than 34,000 active and developing oil and gas fields worldwide, Assa North-Ohaji South (ANOH) was discovered in 1992, lies in block OML 53 and OML 21. Buy the profile here.

The project is currently in commissioning stage and is expected to start commercial production in 2023. Final investment decision (FID) of the project was approved in 2019. The development cost is expected to be $650 m. The Assa North-Ohaji South (ANOH) conventional gas development will involve the drilling of approximately six wells.

Field participation details

The field is owned by Eni, NNPC, Seplat Energy, Shell and TotalEnergies.

Production from Assa North-Ohaji South (ANOH)

Production from the Assa North-Ohaji South (ANOH) conventional gas development project is expected to begin in 2023 and is forecast to peak in 2025, to approximately 19,960 bpd of crude oil and condensate and 600 Mmcfd of natural gas. Based on economic assumptions, the production will continue until the field reaches its economic limit in 2047.

Remaining recoverable reserves

The field is expected to recover 784.24 Mmboe, comprised of 153.84 Mmbbl of crude oil & condensate and 3,782.37 bcf of natural gas reserves.

Contractors involved in the Assa North-Ohaji South (ANOH) conventional gas field

Some of the key contractors involved in the Assa North-Ohaji South (ANOH) project as follows.

Design/FEED Engineering: NNPC

EPC Contractors: Alcon Nigeria, LEE Engineering And Construction and Northbridge Engineering

Other Contractors: Penspen, Emerson Electric, Crestech Engineering, DeltaTek Engineering and AOS Orwell

About The Shell Petroleum Development Co of Nigeria

The Shell Petroleum Development Co of Nigeria Ltd is an subsidiary of Shell plc. The company mainly produces crude oil. The company is headquartered in Port Harcourt, Nigeria.

For more details on the Assa North-Ohaji South (ANOH) Conventional Gas Field, buy the profile here.


GlobalData, the leading provider of industry intelligence, provided the underlying research used to produce this article.

This information is drawn from GlobalData’s Oil & Gas Intelligence Center, which provides detailed profiles of 34,000+ oil and gas fields, 400,000+ exploration blocks, 1,100+ LNG terminals, 3,400+ gas processing plants, 5,000+ storage terminals, and 8,000+ pipelines, 1,400+ refineries and 13,000+ petrochemical plants worldwide.