HYDROCARBON DYNAMICS LIMITED — Director's Dealing 2012

Jan 26, 2012

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Company Announcements Office Australian Securities Exchange 20 Bridge Street Sydney NSW 2000

27 January 2012

Dear Sir,

Pryme Energy Limited (Pryme) (ASX Code PYM) – Expiry of A$0.15 Unlisted Options (Options)

Pryme advises that 500,000 $0.15 Unlisted Options (Options) in the Company expired at 5:00pm (EST) on 20 January 2011.

The optionholder has not exercised the Options and all the 500,000 Options have lapsed as a result.

Following the lapse of these options, there are no further options on issue.

Yours faithfully

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Swapna Keskar Company Secretary

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Appendix 3Y Change of Director’s Interest Notice

Rule 3.19A.2

Appendix 3Y

Change of Director’s Interest Notice

Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public.

Introduced 30/9/2001.

Name of entity PRYME ENERGY LIMITED

ABN 75 117 387 354

We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act.

Name of Director	Gregory Allen Short
Date of last notice	26 July 2011

Part 1 - Change of director’s relevant interests in securities

In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust

Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part.

Direct or indirect interest	Direct
Nature of indirect interest (including registered holder) Note: Provide details of the circumstances giving rise to the relevant interest.	-
Date of change	20 January 2011
No. of securities held prior to change	Ordinary Shares 210,000 - Direct Options 500,000 $0.15 Options expiring on 20 January 2012 and exercisable after 20 January 2011 – Direct
Class	Options
Number acquired	NIL
Number disposed	500,000 options (lapsed)
Value/Consideration Note: If consideration is non-cash, provide details and estimated valuation	NIL
No. of securities held after change	Ordinary Shares 210,000 - Direct

• See chapter 19 for defined terms.

Appendix 3Y Page 1

11/3/2002

Appendix 3Y Change of Director’s Interest Notice

Nature of change Lapse of Options Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back

Part 2 – Change of director’s interests in contracts

Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part.

Detail of contract	-
Nature of interest	-
Name of registered holder (if issued securities)	-
Date of change	-
No. and class of securities to which interest related prior to change Note: Details are only required for a contract in relation to which the interest has changed	-
Interest acquired	-
Interest disposed	-
Value/Consideration Note: If consideration is non-cash, provide details and an estimated valuation	-
Interest after change	-

Part 3 –[+] Closed period

Part 3 –+Closed period
Were the interests in the securities or contracts detailed above traded during a+closed period where prior written clearance was required?	N/A
If so, was prior written clearance provided to allow the trade to proceed during this period?	N/A
If prior written clearance was provided, on what date was this provided?	N/A

• See chapter 19 for defined terms.

Appendix 3Y Page 2

11/3/2002