EVOLUTION PETROLEUM CORP — Director's Dealing 2006

May 11, 2006

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: NATURAL GAS SYSTEMS INC/NEW (NGSY)
CIK: 0001006655
Period of Report: 2006-05-05

Reporting Person: Mazzanti Daryl V (Vice President of Operations)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2006-05-05	Stock Option (right to buy)	$2.55	A	150000	Acquired	2016-05-05	Common Stock (150000)	Direct

Footnotes

F1: The employee stock option vests quarterly over a four-year period beginning on the date of grant.