UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 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): April 7, 2006 (April 6, 2005)

                            CRIMSON EXPLORATION INC.
               (Exact Name of Registrant as Specified in Charter)


           Delaware                       1-12108            20-3037840
(State or Other Jurisdiction of  (Commission File Number)   (IRS Employer
        Incorporation)                                    Identification No.)


          480 N. Sam Houston Parkway E., Suite 300, Houston Texas 77060
                    (Address of Principal Executive Offices)

                                 (281) 820-1919
              (Registrant's telephone number, including area code)

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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 (see General Instruction A.2. below):

[_]  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 14d-2(b))

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

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Item 2.02         Fourth Quarter and Year End Financial Results for 2005.

                  On April 6, 2006, Crimson Exploration Inc. issued a press
release announcing details of its fourth quarter and year end 2005 financial
results. The press release is included in this report as Exhibit 99.1.

                  The information contained in Exhibit 99.1 is incorporated
herein by reference. The information in this Current Report is being furnished
and shall not be deemed "filed" for the purposes of Section 18 of the Securities
Exchange Act of 1934, as amended, or otherwise subject to the liabilities of
that Section. The information in this Current Report shall not be incorporated
by reference into any registration statement or other document pursuant to the
Securities Act of 1933, as amended.

Item 9.01         Financial Statements and Exhibits.

(c)           Exhibits

Exhibit Number       Description
--------------       -----------
Exhibit 99.1         Press Release dated April 6, 2006








                                   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.

                            CRIMSON EXPLORATION INC.

Date:    April 7, 2006      /s/ E. Joseph Grady
                            --------------------------------------
                             E. Joseph Grady
                             Senior Vice President and Chief Financial Officer






                                  Exhibit Index

Exhibit Number         Description
--------------         -----------
Exhibit 99.1           Press Release dated April 6, 2006