Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES i

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

Leni Gas & Oil PLC

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

x

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

An event changing the breakdown of voting rights

Other (please specify):

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

H.J. Heinz Trust Limited

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

5. Date of the transaction and date onwhich the threshold is crossed orreached: v

3rd October 2011

6. Date on which issuer notified:

5th October 2011

7. Threshold(s) that is/are crossed orreached: vi, vii

Holding has gone below 4%

8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type ofshares

if possible usingthe ISIN CODE

Situation previousto the triggeringtransaction

Resulting situation after the triggering transaction

NumberofShares

NumberofVotingRights

Numberof shares

Number of votingrights

% of voting rights x

Direct

Direct xi

Indirect xii

Direct

Indirect

GB00B1TWX932

21,300,000

21,300,000

27,090,000

27,090,000

N/A

2.95%

N/A

*Situation previous was based on an issued share cap of 695,921,632. Resulting situation is based on an issued share cap of 919,254,965.

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate xiii

Exercise/Conversion Period xiv

Number of votingrights that may beacquired if theinstrument isexercised/ converted.

% of votingrights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of financialinstrument

Exercise price

Expiration date xvii

Exercise/Conversion period xviii

Number of voting rights instrument refers to

% of voting rights xix, xx

Warrant

GBP 0.08

30th June 2013

30th June 2013

9,350,000

Nominal

Delta

1.02%

1.02%

Total (A+B+C)

Number of voting rights

Percentage of voting rights

36,440,000

3.96%

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

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will ceaseto hold:

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

David Lenigas

Neil Ritson

+44 (0)20 7440 0645

Beaumont Cornish Limited

Rosalind Hill Abrahams

Roland Cornish

+44(0) 20 7628 3396

Panmure Gordon

Katherine Roe

Hannah Woodley

+44 (0) 20 7459 3600

Shore Capital

Pascal Keane

Jerry Keen

+44 (0) 20 7408 4090

Pelham Bell Pottinger

Mark Antelme

Henry Lerwill

+44 (0) 20 7861 3232