EVOLUTION PETROLEUM CORP — Director's Dealing 2005

May 13, 2005

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: NATURAL GAS SYSTEMS INC/NEW (NGSY)
CIK: 0001006655
Period of Report: 2004-11-30

Reporting Person: CAGAN LAIRD Q (Director, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2005-05-06	Commnon Stock	S	16000	$0.001	Disposed	6464000	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2004-11-30	Common Stock Warrants (right to buy)	$1.5	A	66784	Acquired	2011-11-30	Common Stock (66784)	Direct
2005-05-06	Common Stock Warrants (right to buy)	$2.5	A	91200	Acquired	2011-05-06	Common Stock (91200)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	500000	Indirect
Common Stock	500000	Indirect

Footnotes

F1: Represents shares held in trust for the benefit of the reporting person's minor child.