BLACK ROCK MINING LIMITED — Share Issue/Capital Change 2011

Oct 6, 2011

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Green Rock Energy Limited ABN 59 094 551 336

Unit 10, 38 Colin Street West Perth WA 6005 Australia

ASX

Announcement

PO Box 1177 West Perth WA 6872 Australia

Tel (+61 8) 9482 0482 Fax (+61 8) 9482 0499 Email info@greenrock.com.au Web www.greenrock.com.au

7 October 2011

Proposed Issue of Options to Directors

Pursuant to Listing Rule 3.10 Green Rock Energy Limited wishes to advise that, subject to shareholder approval at its next General Meeting, it proposes to issue a total of 1,250,000 ordinary share options to Directors as follows:

DIRECTORS	NO. OF OPTIONS
Mr Richard Beresford	500,000
Mr Adrian Larking	500,000
Dr Jörg Baumgärtner	250,000

This proposed issue of options is a performance incentive for the future and to give recognition to the value that will be derived from the Directors concerned for contribution to the Company through its Board.

It is proposed that the exercise price of the options be set 50% above the closing price on the ASX of the Company’s shares on the day of the General Meeting.

The details of this proposed issue are as follows:

• ▐ Class of securities to be issued:

Ordinary share options

• ▐ Number of securities to be issued: 1,250,000 ▐ Exercise price: Set at 50% above the closing price of the Company’s shares on the ASX on

the day of the General Meeting, rounded up to the next whole cent

• ▐ Vesting conditions:

Options vest 50% on 15 November 2011 and the balance on 15 November 2012

• ▐ Options expire: On 15 November 2015 ▐ Consideration: Nil ▐ Purpose of issue: As a performance incentive and value recognition ▐ Shareholder approval: To be sought at the next General Meeting

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GREEN ROCK ENERGY LIMITED ABN 59 094 551 336

Proposed Issue of Options to Directors : 7 October 2011

ASX Announcement

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About Green Rock Energy

Green Rock Energy is an Australian company focused on becoming a major developer of energy resources. With a broad portfolio of geothermal energy projects throughout Australia and Europe, Green Rock Energy is positioned to capitalise on the global drive to harness renewable energy.

In 2011 the Company branched into exploration for hydrocarbons in the Canning Basin of Western Australia which holds potential for large volumes of conventional and unconventional gas.

The Company is a member of the Australian Geothermal Energy Association, the Australian Geothermal Energy Group and is a sponsor member of the International Energy Agency’s Geothermal Implementing Agreement.

Nigel Hodder Company Secretary

For more information:

• T: +61 (0)8 9482 0482 F: +61 (0)9482 0499

• E: info@greenrock.com.au W: www.greenrock.com.au

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GREEN ROCK ENERGY LIMITED ABN 59 094 551 336