OML 4, 38, 41 is a producing conventional oil field located onshore Nigeria and is operated by Seplat Energy. The field is located in block OML 38, OML 04, and OML 41.

Field participation details

The field is owned by Nigerian National Petroleum and Seplat Energy.

Production from OML 4, 38, 41

The OML 4, 38, 41 conventional oil field recovered 82.85% of its total recoverable reserves, with peak production in 2018. The peak production was approximately 52.62 thousand bpd of crude oil and condensate and 323 Mmcfd of natural gas. Based on economic assumptions, production will continue until the field reaches its economic limit in 2030. The field currently accounts for approximately 3% of the country’s daily output.

Remaining recoverable reserves

The field is expected to recover 180.31 Mmboe, comprised of 51.79 Mmbbl of crude oil & condensate and 771.08 bcf of natural gas reserves. OML 4, 38, 41 conventional oil field reserves accounts 0.04% of total remaining reserves of producing conventional oil fields globally.

About Seplat Energy

Seplat Energy PLC (Seplat) is an independent upstream oil and gas company which focuses on the acquisition, development and production of oil and natural gas in Nigeria. The company has its portfolio of assets in the prolific Niger Delta region. Its major fields include Oben, Amukpe, Okporhuru, Ovhor, Orogho, Sapele, Umuseti, Igbuku, Jisike, Ohaji South, Robertkiri, Idama, and Inda, among others. It also invested in midstream gas processing facilities and provides processed gas to the domestic market. The company markets processed gas and LPG in the domestic market and sells crude oil in the international market. Seplat is headquartered in Lagos, Nigeria.


Information on the field is sourced from GlobalData’s fields database that provides detailed information on all producing, announced and planned oil and gas fields globally. Not all companies mentioned in the article may be currently existing due to their merger or acquisition or business closure.