Tanzania Block 4: Pweza-2 drilling update

Ophir Energy plc

Tanzania Block 4: Pweza-2 drilling update

London, 28 August 2013: Ophir Energy plc ("Ophir" or "the Company") announces the completion of the Pweza-2 appraisal well in Block 4, Tanzania. Ophir holds 40% of Blocks 1, 3 and 4. BG Group operates with 60%.

Successful Pweza-2 appraisal well

The Pweza-2 well was drilled approximately 2km to the south of the Pweza-1 discovery well in Block 4 and was located downdip of the discovery well to better understand the wider distribution and quality of the reservoir sands across the Pweza field. The well intersected 20m of net pay with excellent reservoir quality which was confirmed to be in pressure communication with Pweza-1. This result has firmed up our resource estimates for the Pweza field which stand at 1.7 TCF of gross recoverable resource.

Pweza-3 well and Drill Stem Test planned

The Deepsea Metro I drillship has now moved to the Pweza-3 drilling location approximately 5km to the west of Pweza-2. Pweza-3 is designed to further appraise the Pweza field, including the collection of cores and a Drill Stem Test. These are to confirm reservoir deliverability from the cluster of Block 4 discoveries that will provide a second hub for the LNG development. These activities are expected to be completed in early October.

Nick Cooper, CEO, commented:

"The Pweza-2 results have confirmed our expectations for recoverable resource estimates in the Pweza field and we look forward to Pweza-3 both further delineating the discovery and underpinning its commerciality with the planned flow-test."

Ends

For Further Enquiries please contact:

Ophir Energy plc +44 (0)20 7290 5800

Nick Cooper, CEO

Richard Rose, Corporate Communications and Strategy

Brunswick Group +44 (0)20 7404 5959

Patrick Handley

Elizabeth Adams

Notes to Editors

Ophir Energy (OPHR.LN) is an African focussed, upstream oil and gas resource company which is a member of the FTSE 250. The Group's headquarters are located in London (England), with operational offices in Perth (Australia), Malabo (Equatorial Guinea), Dar es Salaam and Mtwara (Tanzania), Port Gentil (Gabon) and Nairobi (Kenya).

For further information on Ophir, please refer to www.ophir-energy.com