Carrizo Oil & Gas, Inc. To Make Presentation at the Houston Energy Financial Forum

HOUSTON, Nov. 12 /PRNewswire-FirstCall/ — Carrizo Oil & Gas, Inc. will make a presentation at the Houston Energy Financial Forum.

(Logo: http://www.newscom.com/cgi-bin/prnh/20030523/CRZOLOGO )

A webcast of the presentation can be accessed on the Company website, http://www.crzo.net/, clicking on “Links” and then clicking on “Houston Energy Financial Forum 11-14-07.” The presentation will be webcast live beginning at 9:40 AM CST on Wednesday, November 14, 2007.

Carrizo Oil & Gas, Inc., is a Houston-based energy company actively engaged in the exploration, development, exploitation and production of oil and natural gas primarily in proven onshore trends along the Texas and Louisiana Gulf Coast regions and the Barnett Shale area in North Texas. Carrizo controls significant prospective acreage blocks and utilizes advanced 3-D seismic techniques to identify potential oil and gas reserves and drilling opportunities.

   Contact:  Carrizo Oil & Gas, Inc.             B. Allen Connell, Director of Investor Relations             Paul F. Boling, Chief Financial Officer             (713) 328-1000  

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Carrizo Oil & Gas, Inc.

CONTACT: B. Allen Connell, Director of Investor Relations, orPaul F. Boling, Chief Financial Officer, both of Carrizo Oil & Gas, Inc.,+1-713-328-1000

Web site: http://www.crzo.net/