OML 53

Seplat Energy holds a 40% working interest in OML 53, located onshore in Imo State, within the
northeastern Niger Delta.

The block covers an area of approximately 1,585 km² and contains two producing fields – Ohaji South and Jisike.

Oil Operations

The Ohaji South Field hosts a flow station with design capacity of 18,000-bopd comprising of three-
phase separation facilities and a network of flowlines from the wells producing oil from the shallow
reservoirs in the field. Of the field’s production, approximately 2,000-bopd is supplied to the
Waltersmith Refinery, with the remainder evacuated via the Trans-Niger Pipeline to the Bonny Oil
Terminal.

At the Jisike Field, facilities include a flow station with design capacity of 15,000-bopd comprising of
three-phase separation facilities, a 6 MMscfd design capacity associated gas compressor station and network of flowlines from the oil producing wells. Crude oil from Jisike is sent to the nearby Izombe facilities in OML 124 for handling, before being evacuated through the Brass Oil Terminal.

Gas Development – ANOH Project

The deeper reservoirs in the Ohaji South Field contain significant gas and condensate reserves, which are being developed in partnership with Renaissance Africa Energy Company Limited under a unitized development with the Assa North Field (OML 21) — collectively known as the Assa North–Ohaji South (ANOH) Gas Development Project. 

The ANOH project achieved first gas in January 2026, following completion of the 11 km Indorama export pipeline and regulatory approval from NUPRC. Early wet gas production has stabilized at 40–52 MMscfd of processed gas from four upstream wells, with condensate output of 2.0–2.5 kboepd. Volumes are expected to increase as the plant ramps up to design capacity. Production ramp up toward its full 300 MMscfd capacity would be supported by new gas sales agreements and the future completion of the OB3 pipeline, which will expand evacuation routes. Preparations are underway to begin supplying processed gas to NLNG.

The OML 53 concession also holds promising gas prospects in the Aku and Assa Northeast prospects, with the first exploration well, Aku-1, scheduled for drilling in Q4 2026.

AG Flares Out

Construction of the Ohaji South AG Compressor Station has reached mechanical completion, and the facility will recover up to 10 MMscfd of associated gas for delivery to the ANOH Gas Processing Company, eliminating routine flaring from the field. As ANOH continues to ramp up output, this additional AG supply will form part of the plant’s feedstock, supporting stable operations and increased domestic gas availability.

The Jisike AG compressor station, operational since August 2025, utilizes produced gas from the field for gas-lift of the oil producing wells in the field.

Licence Status

The OML 53 license is due for renewal in June 2027.