Exhibit 10.10

 
June 8, 2005

Board of Directors
Carrizo Oil & Gas, Inc.
1000 Louisiana, Suite 1500
Houston, TX 77002

 

 Attention:  Mr. Paul F. Boling    Chief Financial Officer

 
Re:
Amendment to Placement Agent Agreement Relating to Engagement of Hibernia
Southcoast Capital, Inc. as Managing Placement Agent

Dear Sir:

Reference is made to that certain Placement Agent Agreement (the “Agreement”)
dated June 7, 2005 by and between Carrizo Oil & Gas, Inc. (the “Company”) and
Hibernia Southcoast Capital, Inc.(“HSC”) pursuant to which the Company has
engaged HSC as its managing placement agent in connection with the proposed
private placement of shares of the Company’s common stock pursuant to the
exemptions from registration provided in the Securities Act of 1933, as amended.
Capitalized terms used but not defined herein shall have the respective meanings
assigned to such terms in the Agreement.

In consideration of the premises, the mutual agreements hereinafter contained
and for other good and valuable consideration, the receipt and sufficiency of
which are hereby acknowledged, the parties hereto agree that, effective as of
the date hereof, the Agreement shall be amended by replacing (1) all references
to the size of the Offering of up to 1,100,000 shares with references to the
size of the Offering of up to 1,200,000 shares and (2) Exhibit C thereto with
Exhibit C as attached to this letter.
 
If this letter is in accordance with your understanding of our agreement, kindly
sign and return to us the enclosed duplicate hereof, whereupon it will become a
binding amendment to the Agreement between the Company and the Placement Agents
in accordance with its terms. Except as specifically amended by this letter, the
Agreement shall remain in full force and effect and the Agreement, as amended by
this letter, is hereby ratified and affirmed in all respects.

[signature page follows]
 
 
 

--------------------------------------------------------------------------------

 

Very truly yours,

HIBERNIA SOUTHCOAST CAPITAL, INC.

 
By: /s/Stanley E. Ellington, Jr. 
Stanley E. Ellington, Jr.
Managing Director

Accepted this 8th day of June, 2005

CARRIZO OIL & GAS, INC.

By: /s/ Paul F. Boling 
Paul F. Boling
Chief Financial Officer
 
 
 

--------------------------------------------------------------------------------

 

EXHIBIT C

Additional Placement Agents
Percentage of Commissions and Fees
   
Hibernia Southcoast Capital, Inc.
45.00%
First Albany
13.75%
Johnson, Rice & Company, LLC
13.75%
Harris Nesbit 
13.75%
Pritchard Capital Partners, LLC
13.75%

 
 

--------------------------------------------------------------------------------