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Development of the Gbetiokun oilfield will signal the next material phase of production growth in OML 40



  • Type: Oil reserve
  • Discovered: 1987
  • Gross 2P: 38.0 mmbbls
  • Location: 63km NW of Warri 
  • Reservoir Depth: 4,500–10,000ft
  • Distance from Opuama Flowstation: 27km to the South East

Gbetiokun is located on the boundary of OML 40 and OML 49, which is operated by Chevron. The field is known as Gbetiokun in OML 40; the extension of the field in OML 49 is called Bime. The field was discovered by well Gbetiokun-1 in 1987 and presently four wells have been drilled on the structure (two in OML 40 and two in OML 49).

The latest appraisal well Gbetiokun 2 was drilled in August 1991 on the western flank of the field where it found a significant number of reservoirs containing hydrocarbons. NSAI provided a Competent Person's Report (CPR) for Gbetiokun-1 in April 2016 which has gross 2P oil reserves of 10.8 million barrels (mmbbls). In 2017 NSAI provided a CPR for Gbetiokun field which has gross 2P reserves of 38.0 mmbbls.

Reservoir characteristics

A total of 20 hydrocarbon reservoirs have been identified in the Gbetiokun field. The crude is generally characterised as having a low viscosity, high API gravities from 39°-41° and also being under-saturated. PVT analysis taken in the discovery well indicated the presence of good quality oil. The reservoirs are similar to those found in Opuama and it is considered very likely that they will have moderate to strong aquifer drive.


Detailed geological studies, supplemented with development studies, resulted in a Field Development Plan (FDP). The field is planned to be produced through an early production facility which contains equipment needed for oil treatment, pumping and gas compression. A 30km wet crude export pipeline is planned to join the Opuama-Otumara export pipeline system, with barging as an alternative export option. We are currently planning for the re-entry, completion and production of Gbetiokun-1 in H1-2018.

Gbetiokun is located on the boundary of OML 40 and OML 49

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