TMX group

LONDON, UNITED KINGDOM--(Marketwire - Nov. 8, 2011) - Heritage Oil Plc (TSX:HOC)(LSE:HOIL)

TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARESⁱ

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:ⁱⁱ

Heritage Oil Plc

2. Reason for the notification:

An acquisition or disposal of voting rights

3. Full name of person(s) subject to the notification obligation:ⁱⁱⁱ

Capital Research and Management Company

4. Full name of shareholder(s) (if different from 3):^iv

5. Date of the transaction and date on which the threshold is crossed or reached:^v

4 November 2011

6. Date on which issuer notified:

7 November 2011

7. Threshold(s) that is/are crossed or reached:^{vi, vii}

Below 11%

8. Notified details:

A: Voting rights attached to shares viii,ix
Class/type of shares if possible using the ISIN CODE	Situation previous to the Triggering transaction		Resulting situation after the triggering transaction
	Number of Shares	Number of Voting Rights	Number of shares	Number of voting rights			% of voting rights x
			Indirect	Direct xi	Indirect xii		Direct	Indirect
JE00B2Q4TN56	28,679,718	28,679,718	28,459,718		28,459,718			10.9517%

B: Financial Instruments
Resulting situation after the triggering transaction
Type of financial instrument	Expiration date xiii	Exercise/Conversion Period/ Date xiv	Number of voting rights that may be acquired if the instrument is exercised/converted.	% of voting rights
n/a

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv,xvi
Resulting situation after the triggering transaction
Type of financial instrument	Exercise price	Expiration date xvii	Exercise/ Conversion period xviii	Number of voting rights instrument refers to	% of voting rights xix,xx
					Nominal	Delta

Total (A+B+C)
Number of voting rights	% of voting rights
28,459,718	10.9517%

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable: ^xxi

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will cease to hold:

12. Date on which proxy holder will cease to hold voting rights:

13. Additional information:

14. Contact name:

15. Contact telephone number: