HYDROCARBON DYNAMICS LIMITED — Director's Dealing 2011

Jul 25, 2011

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 OIL AND GAS 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	14 September 2010

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 therelevant interest.	-
Date of change	1. 20 July 20112.22 July 2011
No. of securities held prior to change	Ordinary Shares60,000 - DirectOptions500,000 $0.15 Options expiring on 20 January 2012 andexercisable after 20 January 2011 – Direct
Class	Fully Paid Ordinary Shares
Number acquired	1. 114,4022. 35,598
Number disposed	NIL
Value/ConsiderationNote: If consideration is non-cash, provide details and estimatedvaluation	1. $14,872.262. $ 4,627.74

• See chapter 19 for defined terms.

Appendix 3Y Page 1

11/3/2002

Appendix 3Y Change of Director’s Interest Notice

No. of securities held after change	Ordinary Shares
	210,000 - Direct
	Options
	500,000 $0.15 Options expiring on 20 January 2012 and
	exercisable after 20 January 2011 – Direct
Nature of change	On-market purchase
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	No
above traded during a+closed period where prior
written clearance was required?
If so, was prior written clearance provided to allow the	N/A
trade to proceed during this period?
If prior written clearance was provided, on what date	N/A
was this provided?

• See chapter 19 for defined terms.

Appendix 3Y Page 2

11/3/2002