06 December 2012 Heritage Oil Plc ("Heritage" or the "Company") HERITAGE OIL ANNOUNCES ACQUISITION OF COMMON SHARES OF PETROFRONTIER CORP.

Heritage Oil Plc (LSE: HOIL), an independent upstream exploration and production company, today announces that the Company acquired 1,800,000 common shares ("Shares") of PetroFrontier Corp. ("PetroFrontier") representing 2.27% of the outstanding Shares. Together with Shares already held by Heritage, the Company now holds 13,960,467 Shares, representing approximately 17.58% of the outstanding Shares of PetroFrontier. Heritage also holds 2,311,767 warrants of PetroFrontier ("Warrants") which are convertible into 2,311,767
Shares upon due exercise thereof. If these Warrants were duly exercised, Heritage would hold approximately 19.91% of the outstanding Shares of PetroFrontier.
The Shares were acquired through the facilities of the TSX Venture Exchange for an aggregate price equal to CDN$166,320. Heritage may increase or decrease its ownership of securities of PetroFrontier depending upon future market conditions.
All Shares acquired and/or held by Heritage in PetroFrontier were acquired for investment purposes.
Heritage Oil Plc
Fourth Floor, Windward House
La Route de la Liberation
JE2 3BQ Jersey
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For further information please contact: Heritage Oil Plc

Tony Buckingham, CEO / Paul Atherton, CFO
+44 (0) 1534 835 400 info@heritageoilplc.com

Heritage Oil Plc - Investor Relations

Tanya Clarke / Claire Harrison
+44 (0) 20 7518 0838
ir@heritageoilplc.com

Media Enquiries

John Waples / Ben Brewerton
+44 (0) 20 7831 3113 heritageoil.sc@fticonsulting.com

Canada

Cathy Hume / Jeanny So
+1 416 868 1079 x231 / x225 cathy@chfir.com / jeanny@chfir.com

Notes to Editors