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 13, 2004

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


     Texas                   000-22915                  76-0415919
(State or other             (Commission             (I.R.S. Employer
jurisdiction of             File Number)           Identification No.)
 incorporation)

              14701 St. Mary's Lane
                  Suite 800
                Houston, Texas                             77079
             (Address of principal                      (Zip code)
               executive offices)



       Registrant's telephone number, including area code: (281) 496-1352




Item 12.       RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

               The following  information is furnished under Item 12 of Form 8-K
(Results of Operations and Financial Condition).

               Our press  release  dated May 13, 2004  concerning  first quarter
2004  financial   results,   furnished  as  Exhibit  99.1  to  this  report,  is
incorporated by reference herein. The press release contains a measure which may
be deemed a "non-GAAP financial measure" as defined in Item 10 of Regulation S-K
of the Securities Act of 1934, as amended.  We discuss EBITDA, as defined in the
press  release,  for the  quarters  ended  March  31,  2003 and  2004.  The most
comparable GAAP financial measure,  net income, and information  reconciling the
GAAP and non-GAAP  measures were also included in the press release.  We believe
that EBITDA, as defined, may provide additional information about our ability to
meet our future requirements for debt service,  capital expenditures and working
capital. EBITDA, as defined, is a financial measure commonly used in the oil and
natural  gas  industry  and  should  not  be  considered  in  isolation  or as a
substitute  for  net  income,   operating  income,  cash  flows  from  operating
activities or any other measure of financial performance presented in accordance
with  generally  accepted  accounting  principles or as a measure of a company's
profitability or liquidity.  Because EBITDA, as defined,  excludes some, but not
all, items that affect net income, the EBITDA presented in the press release may
not be comparable to similarly titled measures of other companies.

               None of the information furnished in Item 12 and the accompanying
exhibit  will be deemed  "filed" for  purposes  of Section 18 of the  Securities
Exchange Act of 1934, as amended,  nor will it be incorporated by reference into
any  registration  statement filed by Carrizo Oil & Gas under the Securities Act
of  1933,  as  amended,   unless   specifically   identified  therein  as  being
incorporated  therein by reference.  The  furnishing of the  information in this
report is not intended to, and does not, constitute a determination or admission
by  Carrizo  Oil & Gas,  that the  information  in this  report is  material  or
complete,  or that investors should consider this  information  before making an
investment decision with respect to any security of Carrizo Oil & Gas.


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                                   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.




                                      By: /s/ Paul F. Boling
                                          ------------------
                                      Name:  Paul F. Boling
                                      Title: Vice President and
                                             Chief Financial Officer
Date:  May 19, 2004


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                                  EXHIBIT INDEX



             The following exhibit is furnished pursuant to Item 12:



99.1     Press  Release,  dated  May  13, 2004, Announcing Financial Results for
         First Quarter of 2004.