(SEY) Sterling Energy

Second Price Monitoring Extension

A second and final Price Monitoring Extension has been activated in this security. The closing auction call period is extended in this security for a further 5 minutes.

Following the first price monitoring extension this security would still have executed more than a pre-determined percentage above or below the price of the most recent automated execution today. London Stock Exchange electronic order book users have a final opportunity to review the prices and sizes of orders entered in this security prior to the auction execution which will set today's closing price.

The applicable percentage is set by reference to a security's Millennium Exchange sector. This is set out in the Sector Breakdown tab of the Parameters document at www.londonstockexchange.com/tradingservices

Price Monitoring Extension

Today's closing auction call period has been extended in this security by 5 minutes.

Auction call extensions give London Stock Exchange electronic order book users a further opportunity to review the prices and sizes of orders entered in an individual security's closing auction call before the execution occurs. A price monitoring extension is activated when the matching process would have otherwise resulted in an execution price that is a pre-determined percentage above or below the price of the most recent automated execution today.

The applicable percentage is set by reference to a security's Millennium Exchange sector. This is set out in the Sector Breakdown tab of the Parameters document at www.londonstockexchange.com/tradingservices