Norwegian business sale completetion & Update

PREMIER OIL PLC

("Premier")

Completion of the sale of Norwegian business and Operational Update

23 December 2015

Norway sale

Premier is pleased to report that, further to the announcement made on 16 November 2015, the disposal of Premier Oil Norge AS to Det norske oljeselskap ASA for a net cash consideration of $120 million, has now completed. As a result net debt is expected to be just under $2.3 billion at year end. Premier continues to enjoy significant liquidity with $1.2 billion of cash and undrawn credit facilities and covenant headroom is expected to be in excess of $800 million at the year end.

Solan Commissioning

On the Solan field, progress has been made on the commissioning of the offshore installation systems required for first oil. Since our trading update on 15 November, tanker trials have been successfully completed and commissioning work has continued using the Superior flotel. As previously stated, the timing of the start‑up of first oil is dependent on weather conditions; after a favourable weather period for much of September and October, the West of Shetlands area experienced an unprecedented number of different storm fronts during November and early December. This resulted in poor bridge connectivity between the flotel and the Solan platform and a number of lost days. We are continuing to reduce the number of hours required to reach first oil, however we now expect first oil to be in January.

Falkland Island Drilling

Drilling operations in the Isobel-Elaine area of the North Falklands basin are ongoing. The Isobel Deep re-drill well is drilling ahead with results expected early in the New Year.

Further updates will be provided in due course with a full trading and operations update scheduled for 14 January 2016.

Enquiries

Premier Oil plc Tel: 0207 730 1111

Tony Durrant, CEO

Richard Rose, Finance Director

Bell Pottinger

Gavin Davis Mob: 07910 104 660

Henry Lerwill Mob: 07894 608 607