Exploration Drilling Update

PREMIER OIL PLC

("Premier")

Exploration drilling update - 3/7-10 S well, Norway

3 September 2015

Premier announces that the 3/7-10 S exploration well (Premier 40 per cent operated interest) which was targeting the Myrhauk prospect on the south east flank of the Mandal High in PL 539 in the Norwegian sector of the North Sea has reached total vertical depth of 3,464 metres. The well encountered approximately 110 metres of good reservoir quality Middle Jurassic sands but these were water wet. The well is being plugged and abandoned as a dry hole. 

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