SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* GREENHILL CAPITAL PARTNERS, LLC (Last) (First) (Middle) 300 PARK AVENUE, 23RD FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 06/26/2008	3. Issuer Name and Ticker or Trading Symbol Crusader Energy Group Inc. [ KRU ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) X Other (specify below) Signatory to a voting agreemnt	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	100,100,000	I(1)(2)(3)(4)(5)	See footnotes(1)(2)(3)(4)(5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person* GREENHILL CAPITAL PARTNERS, LLC (Last) (First) (Middle) 300 PARK AVENUE, 23RD FLOOR (Street) NEW YORK NY 10022 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) X Other (specify below) Signatory to a voting agreemnt

1. Name and Address of Reporting Person* GCP Managing Partner II, L.P. (Last) (First) (Middle) 300 PARK AVENUE (Street) NEW YORK NY 10022 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) X Other (specify below) Signatory to a voting agreemnt

1. Name and Address of Reporting Person* GREENHILL & CO INC (Last) (First) (Middle) 300 PARK AVENUE (Street) NEW YORK NY 10022 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) X Other (specify below) Signatory to a voting agreemnt

Explanation of Responses:

1. This Form 4 is being filed by more than one reporting person.

2. Greenhill Capital Partners, LLC, whose sole member is Greenhill & Co., Inc., is the general partner of GCP Managing Partner II, L.P. GCP Managing Partner II, L.P. is the general partner of Greenhill Capital Partners II, L.P., Greenhill Capital Partners (Cayman) II, L.P., Greenhill Capital Partners (Executives) II, L.P. and Greenhill Capital Partners (Employees) II, L.P. (collectively, the "Funds"). The Funds own an equity interest in Knight Energy Group I Holding Co., LLC ("Knight Holding"), the parent of Knight Energy Group, LLC ("Knight").

3. Pursuant to a business combination described in the proxy statement dated May 23, 2008 and filed by Westside Energy Corporation with the Securities and Exchange Commission on May 28, 2008 (the "Proxy Statement"), on June 26, 2008, Knight, along with six other privately held companies, was acquired by Westside Energy Corporation in exchange for common stock of Westside Energy Corporation, which was renamed Crusader Energy Group Inc. (the "Company"). Knight Holding is the direct holder of the 100,100,000 shares of common stock of the Company reported on this Form 3 (the "Reported Shares"). The reporting persons are filing this Form 3 as members of Knight Holding who share voting and investment control over the Reported Shares. The Funds are also party to a voting agreement with respect to shares of common stock of the Company that was entered into in connection with the business combination described in the Proxy Statement.

4. Robert H. Niehaus, a Managing Director of Greenhill Capital Partners, LLC, is a member of the Board of Directors of the Company.

5. Each reporting person disclaims beneficial ownership of the reported securities except and to the extent of its or his pecuniary interest therein.

	/s/ Jodi Ganz, By: Greenhill Capital Partners, LLC, By: Jodi Ganz, Secretary	06/26/2008
	/s/ Jodi Ganz, By: GCP Managing Partner II, L.P., for itself and as general partner of the Funds, By: Greenhill Capital Partners, LLC, its general partner, By: Jodi Ganz	06/26/2008
	/s/ Jodi Ganz, By: Greenhill & Co., By: Jodi Ganz, Acting General Counsel and Secretary	06/26/2008
	** Signature of Reporting Person	Date
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