Share dealing

The following share dealing services are available through our Registrars, Computershare Investor Services PLC:

Internet share dealing

Please note that, at present, this service is only available to shareholders in certain European jurisdictions. This service provides shareholders with an easy way to buy or sell Tullow Oil plc ordinary shares on the London Stock Exchange. The commission is just 1%, subject to a minimum charge of £30. In addition stamp duty, currently 0.5%, is payable on purchases. There is no need to open an account in order to deal. Real time dealing is available during UK market hours 8.00am to 4.30pm. In addition there is a convenient facility to place your order outside of market hours. Up to 90-day limit orders are available for sales.

To access the service - log on to the Computershare Sharedealing Centre. Shareholders should have their Shareholder Reference Number (SRN) available. The SRN appears on share certificates. A bank debit card will be required for purchases.

TELEPHONE SHARE DEALING

A telephone share dealing service is available through Computershare for sale and purchase of Tullow Oil plc shares. The commission is 1%, subject to a minimum charge of £35. In addition stamp duty, currently 0.5%, is payable on purchases. The service is available from 8.00am to 4.30pm Monday to Friday, excluding bank holidays. Shareholders who are interested in using this service can obtain further details by calling the appropriate telephone number below:

UK Shareholders +44 (0) 370 703 0084
Irish Shareholders +353 (0) 1447 5435
Other Shareholders +44 (0) 370 703 0084

Shareholders should have their SRN ready when making the call. A bank debit card will be required for purchases. Detailed terms and conditions are available on request by telephoning +44 (0)870 702 0000.

These services are offered on an execution-only basis. This is not a recommendation to buy, sell or hold shares in Tullow Oil plc. Shareholders who are unsure of what action to take should obtain independent financial advice. Share values may go down as well as up, which may result in a shareholder receiving less than he/she originally invested.