Total Voting Rights and Warrant Update

PREMIER OIL PLC(the "Company")

Total Voting Rights and Warrant Update

As at 30 June 2020, Premier Oil plc's issued share capital consisted of 922,028,631 Ordinary Shares of 12.5 pence with voting rights. Premier Oil plc does not hold any shares in Treasury.

The figure of 922,028,631 may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, Premier Oil plc under the FCA's Disclosure and Transparency Rules.

To date, the Company has allotted 42,949,759 Ordinary Shares as a result of the exercise of equity warrants, representing 4.66% per cent of the Company's enlarged share capital.

As at 30 June 2020, 19,732,020 warrants have been exercised on a cashless basis and a further 35,377,158 warrants have been exercised in cash. Following the placing of shares announced on 5 June 2020, the Exercise Price of the warrants was adjusted with effect from 10 June 2020 to £0.4081 from £0.4180.

For further information please contact:

Daniel Rose

Premier Oil plc

020 7824 1014

1 July 2020