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: July      07, 2006

(Date of earliest event reported)




Rosetta Resources Inc.

(Exact name of registrant as specified in its charter)





TX

(State or other jurisdiction 
of incorporation)


000-51801

(Commission File Number)


43-2083519

(IRS Employer 
Identification Number)






717 Texas, Suite 2800

(Address of principal executive offices)

 

77002

(Zip Code)




7133354000
(Registrant's telephone number, including area code)




Not Applicable
(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:



 
o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

 
o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

 
o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

  

 
o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

  







Item 7.01. Regulation FD Disclosure



On July 7, 2006, the Registrant issued a press release announcing that Rosetta Resources Inc. has responded to Calpine Corporation's motion to assume oil and gas leases. The text of the release is attached as Exhibit 99.1. A copy of the Company's response may be obtained by contacting the Company.


Item 9.01. Financial Statements and Exhibits


(a) Financial statements:

             None

(b) Pro forma financial information:

             None

(c) Shell company transactions:

             None

(d) Exhibits

             99.1       Press Release of Rosetta Resources Inc. dated July      07, 2006






SIGNATURE


      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.








Dated: July      07, 2006



ROSETTA RESOURCES INC.


By:  /s/ Michael J. Rosinski                      

     Michael J. Rosinski

     Chief Executive Officer








Exhibit Index



Exhibit No.
Description


99.1
Press Release of Rosetta Resources Inc. dated July      07, 2006