Heritage Oil Plc : Transaction in Own Shares

28 July 2011Heritage Oil Plc(“Heritage”)Heritage - Transactions in Own Shares

Heritage Oil Plc, an independent upstream exploration and production company, announces that on 27 July 2011 it purchased 324,500 Ordinary Shares to be held in treasury at 260.0028 pence per share (with a price range of 256.0 and 266.2 pence per share). Following this purchase, Heritage Oil Plc holds 25,947,494 Ordinary Shares in treasury, and has

263,800,536 Ordinary Shares in issue (excluding treasury shares) as well as 2,811,408 exchangeable shares of no par value of Heritage Oil Corporation each carrying one voting right in Heritage.

The total number of voting rights in Heritage, excluding treasury shares, as at 27 July 2011 is

266,611,944.

The above figure (266,611,944) 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, Heritage under the FSA's Disclosure and Transparency Rules.

- ends -

For further information please contact: Heritage Oil Plc

Tony Buckingham, CEO / Paul Atherton, CFO

[phone] [e-mail]

Heritage Oil Plc – Investor Relations

Tanya Clarke

[phone] [e-mail]

Pelham Bell Pottinger – PR - Europe

Nick Lambert / Duncan Mayall

[phone] / [phone]

[e-mail] / [e-mail]

CHF Investor Relations – Investor Relations - Canada

Cathy Hume / Jeanny So

[phone] x231 / x225 [e-mail] / [e-mail]

Notes to Editors