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                                  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): May 16, 2006 (May 16, 2006)

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


         Delaware                       1-12108                  20-3037840
(State or Other Jurisdiction     (Commission File Number)      (IRS Employer
     of 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         Results of Operations and Financial Conditions

                  On May 15,  2006,  Crimson  Exploration  Inc.  issued  a press
release  announcing  (i) details of its 1st Quarter 2006  Financial  Results and
(ii) recent  operational  activity.  The Company also announced that  management
will hold a conference  call to discuss the  information in the press release on
Tuesday,  May 16, 2006 at 9:30 a.m.  CST. 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 May 15, 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:  May 16, 2006                    /s/ Allan D. Keel
                                       -------------------------------------
                                       Allan D. Keel
                                       President and Chief Executive Officer





                                  Exhibit Index

Exhibit Number                              Description
--------------                              -----------
Exhibit 99.1                                Press Release dated May 15, 2006