Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

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

IGas Energy plc

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

An acquisition or disposal of voting rights

X

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

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:

 Kerogen General Partner II Limited

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

Unconventional Energy Limited

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

4 April 2017

6. Date on which issuer notified:

5 April 2017

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

All applicable thresholds up to (and including) 27%

8. Notified details:

A: Voting rights attached to shares

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

Direct

Direct

Indirect

Direct

Indirect

Ordinary Shares with nominal value of 0.0001 pence each

ISIN CODE: GBOO829PWM59

Nil

Nil

Nil

Nil

679,282,165

Nil

27.9999%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate

Exercise/Conversion Period

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

% of votingrights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Exercise price

Expiration date

Exercise/Conversion period

Number of voting rights instrument refers to

% of voting rights

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

679,282,165

27.9999%

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

The legal shareholder, Unconventional Energy Limited, is a direct wholly owned subsidiary of Kerogen II Investments No. 18 Holding Limited, which is in turn a direct wholly owned subsidiary of Kerogen General Partner II Limited, the person subject to the notification obligation.

Proxy Voting:

10. Name of the proxy holder:

N/A

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

N/A

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

N/A

13. Additional information:

Calculation of notifiable voting interests based on Company issued share capital figure of 2,426,007,734 ordinary shares, as per Company announcement dated 3 April 2017

14. Contact name:

The Board of Directors

15. Contact telephone number:

+44-20-7399-4500