UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

         Date of Report (date of earliest event reported): May 10, 2005

                             CARRIZO OIL & GAS, INC.
             (Exact name of registrant as specified in its charter)

        Texas                      000-29187-87               76-0415919
     (State or other               (Commission             (I.R.S. Employer
     jurisdiction of               File Number)           Identification No.)
      incorporation)


           1000 Louisiana Street
                 Suite 1500
               Houston, Texas                                     77002
   (Address of principal executive offices)                     (Zip code)

       Registrant's telephone number, including area code: (713) 328-1000


                                       N/A
         (Former name or former address, if changed since last report.)

Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions:

[ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR
230.425)
[ ] Soliciting  material  pursuant to Rule 14a-12 under the Exchange Act (17 CFR
240.14a-12)
[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
Act (17 CFR 240.14d-2(b))
[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
Act (17 CFR 240.13e-4(c))




Item 1.01         Entry into a Material Definitive Agreement.

     On May 10, 2005, at the annual meeting of the shareholders of Carrizo Oil &
Gas, Inc. (the "Company"),  the  shareholders of the Company approved  Amendment
No.5 (the "Amendment No.5") to the Company's Amended and Restated Incentive Plan
(the "Incentive  Plan"). The Amendment amends the Incentive Plan to, among other
things,  (1) replace  automatic initial awards of stock options to new directors
to purchase 10,000 shares of common stock and automatic  awards of stock options
to Board  committee  chairmen  with  discretionary  awards of stock  options  or
restricted stock that are determined by the Company's  compensation committee or
Board of Directors,  (2) give the Company's  compensation committee and Board of
Directors  additional  flexibility  in  determining  awards  to Board  committee
members  and in  establishing  the  specific  terms of  awards  of  options  and
restricted stock granted to directors,  including without limitation the vesting
schedules  for those awards and the dates those  awards may be granted,  and (3)
make certain clarifications to other provisions of the Incentive Plan.

     The  foregoing  description  of  Amendment  No.5  is  not  complete  and is
qualified by reference to the complete  Amendment No.5, which is attached hereto
as an exhibit and incorporated herein by reference.

Item 9.01.        Financial Statements and Exhibits.

     (c) Exhibits.



Exhibit Number          Description
--------------          -----------
                     
10.1                    Amendment  No.5  to  the  Amended and Restated Incentive
                        Plan of Carrizo Oil & Gas, Inc.






                                   SIGNATURES



     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized. CARRIZO OIL & GAS, INC.


                                      CARRIZO OIL & GAS, INC.


                                      By: /s/ Paul F. Boling
                                          ------------------ 
                                      Name:  Paul F. Boling
                                      Title: Vice President and 
                                             Chief Financial Officer

Date:  May 16, 2005








                                  EXHIBIT INDEX

10.1          Amendment  No.5  to  the  Amended  and  Restated Incentive Plan of
              Carrizo Oil & Gas, Inc.