Oza is a producing conventional oil field located onshore Nigeria and is operated by Millenium Oil and Gas. The field is located in block Oza (OML 11).

Two expansion projects are associated with the Oza conventional oil field, namely Oza Phase 2 Development and Oza Phase 3 Development. The expansion projects are currently in the construction and feasibility stage.

Field participation details

The field is owned by Emerald Energy Resources, Hardy Oil and Gas and Millenium Oil and Gas.

Production from Oza

The Oza conventional oil field recovered 95.72% of its total recoverable reserves, with peak production in 2017. The peak production was approximately 0.9 thousand bpd of crude oil and condensate. Based on economic assumptions, production will continue until the field reaches its economic limit in 2025.

Remaining recoverable reserves

The field is expected to recover 0.02 Mmboe, comprised of 0.02 Mmbbl of crude oil & condensate.


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.