Carrizo Oil Gas, Inc. Announces Conference Call for the Fourth Quarter and Full Year 2011 Financial Results

HOUSTON, TX -- (Marketwire) -- 02/10/12 -- Carrizo Oil Gas, Inc. (NASDAQ: CRZO) will hold a conference call to discuss 2011 fourth quarter and full year financial results on Tuesday, February 28, 2012 at 10:00 AM Central Standard Time. Carrizo plans to issue an earnings press release prior to the market opening on Tuesday, February 28, 2012.

Date  Time:                      Tuesday, February 28 at 10:00 AM CST

Dial-In Number:                   (800) 707 - 9231 (U.S.  Canada)

                                  1 (303) 223 - 2683 (Intl./Local)

Telephone Replay Number:          (800) 633 - 8284 (U.S.  Canada)

                                  1 (402) 977 - 9140 (Intl./Local)

Enter Replay Reservation : 21579534 for U.S., Canadian and International callers.

The replay will be available through Tuesday, March 6, 2012 at 11:59 AM CST.

A simultaneous webcast of the call may be accessed over the internet at http://www.investorcalendar.com/IC/CEPage.aspID=167442 or by visiting our website at http://www.crzo.net clicking on "Investor Relations" and then clicking on "2011 Fourth Quarter Conference Call Webcast." To listen, please go to either website in time to register and install any necessary software. The webcast will be archived for replay on the Carrizo website for 15 days.

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 the Eagle Ford Shale in South Texas, the Barnett Shale in North Texas, the Marcellus Shale in Appalachia, the Niobrara Formation in Colorado, and in proven onshore trends along the Texas and Louisiana Gulf Coast regions. Carrizo is also actively developing its oil discovery known as the Huntington Field in the UK North Sea. Carrizo controls significant prospective acreage blocks and utilizes advanced drilling and completion technology along with sophisticated 3-D seismic techniques to identify potential oil and gas drilling opportunities and to optimize reserve recovery.