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: December 31, 2007
(Date
of
earliest event reported)
Rosetta
Resources
Inc.
(Exact
name of registrant as specified in its charter)
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DE
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000-51801
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43-2083519
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(State
or other jurisdiction of incorporation)
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(Commission
File Number)
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(IRS
Employer Identification Number)
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717
Texas, Suite 2800
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77002
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(Address
of principal executive offices)
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(Zip
Code)
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713-335-4000
(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:
£
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
7.01. Regulation FD Disclosure.
On
December 21, 2007, Rosetta Resources Inc. issued a press release responding
to
Calpine’s plan of reorganization which was confirmed by the Bankruptcy Court in
New York on December 19, 2007.
The
press
release is furnished as Exhibit 99.1 to this Current Report. Exhibit 99.1 shall
not be deemed to be "filed" for the purposes of Section 18 of the Securities
Exchange Act of 1934, as amended, and will not be incorporated by reference
into
any registration statement filed under the Securities Act of 1933, as amended,
unless specifically identified therein as being incorporated therein by
reference.
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 December 21, 2007.
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.
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Dated:
December 31, 2007
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ROSETTA
RESOURCES
INC.
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By:
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/s/
Michael J. Rosinski
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Michael
J. Rosinski
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Executive
Vice President and Chief Financial
Officer
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