Tanzania: Successful Mzia-3 appraisal well

Ophir Energy plc

Tanzania: Successful Mzia-3 appraisal well

London, 13 November 2013: Ophir Energy plc ("Ophir" or "the Company") announces further successful appraisal of the Mzia discovery in Block 1, Tanzania. Ophir holds 40% of Blocks 1, 3 and 4. BG Group operates with 60%.

The Mzia-3 appraisal well was drilled approximately 6km north of the original Mzia-1 discovery well and targeted the main Lower sands that comprise the majority of the resource in the field and upside in the Middle sand package that was encountered in the Mzia-1 well. The well encountered 56m of net pay combined in the Lower and Middle sands and has confirmed reservoir quality in-line with that seen in the Mzia-1 and Mzia-2 wells.

In addition, the gas down to level proven in Mzia-3 is 107m deeper than that seen in the previous wells, leading to an increase in discovered resource estimates. Provisional interpretation of the Mzia-3 result has increased the overall mean contingent recoverable resource for the Mzia discovery by c.0.7 TCF to c.5.2 TCF. Well completion operations are currently ongoing.

Nick Cooper, CEO, commented:

"The Mzia-3 result is another positive appraisal well on our discoveries in Blocks 1, 3 and 4 and confirms Mzia as an anchor asset in the planned LNG development. Total discovered resources are now comfortably in excess of that needed for two trains of LNG and demonstrate the potential for further long-term growth of the project."

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 focused, upstream oil and gas exploration company which is listed on the London Stock Exchange (FTSE 250). Ophir has an extensive deepwater acreage position in West and East Africa acquired since its foundation in 2004.

The Group's headquarters are located in London (England), with operational offices in Perth (Australia), Dar es Salaam and Mtwara (Tanzania), Malabo (Equatorial Guinea), Libreville (Gabon) and Nairobi (Kenya) and Accra (Ghana).

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