Washington, DC 20549




Date of Report (Date of Earliest Event Reported):  September 17, 2012

(Exact Name of Registrant as Specified in Charter)

(State or Other Jurisdiction of Incorporation)
 (Commission File Number)
(IRS Employer Identification No.)

717 Texas Ave., Suite 2900, Houston Texas 77002
(Address of Principal Executive Offices)

(713) 236-7400
(Registrant’s telephone number, including area code)

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)
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[]  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))



  Item 8.01                   Other Events.
On September 17, 2012, Crimson Exploration Inc. issued a press release announcing the successful completion of the KM Ranch #2H well (50.0% WI), targeting the Eagle Ford Shale formation in Zavala County, Texas.  A copy of the press release is attached hereto as Exhibit 99.1.
The information furnished pursuant to Item 8.01 in this report on Form 8-K, including Exhibit 99.1, shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934 (the “Exchange Act”) or otherwise subject to the liability of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act or incorporates it by reference into a filing under the Securities Act of 1933 or the Exchange Act.
Item 9.01                      Financial Statements and Exhibits.




Exhibit Number
Press Release dated September 17, 2012




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.

Date:  September 17, 2012
/s/ E. Joseph Grady
E. Joseph Grady
Senior Vice President and Chief Financial Officer



Exhibit Index

Exhibit Number
Press Release dated September 17, 2012



Crimson Exploration Inc. Announces Successful Zavala County Eagle Ford Completion
Houston, TX – (BUSINESS WIRE) – September 17, 2012 - Crimson Exploration Inc. (NasdaqGM: CXPO) today announced the KM Ranch #2H well (50.0% WI), targeting the Eagle Ford Shale formation in Zavala County, Texas, was successfully completed at a gross initial production rate of 511 Boepd, or 457 barrels of oil and 326 mcf of natural gas. The well was drilled to a total measured depth of 12,875 feet, including 5,250 feet of perforated lateral, and was completed using 16 stages of fracture stimulation.  Crimson has approximately 6,550 net acres between Zavala and Dimmit counties, TX.

Allan D. Keel, President and Chief Executive Officer, commented, “Crimson continues to be very pleased with the progress we are making in the Zavala and Dimmit County area of south Texas. We believe the progression of improved results by Crimson and other offset operators has demonstrated that the Eagle Ford is an economically viable play in this part of the trend. Recent higher initial production rate wells drilled by other operators in the eastern portion of Zavala County, and immediately adjacent to Crimson’s leasehold, have been completed with average effective lateral lengths of approximately 7,500 feet. The average length is approximately 40-45% longer than the effective lateral length of the KM Ranch #2H implying, on a normalized basis, our results are in line with recent well results for the area. We believe our current stimulation recipe is consistent with other area operators and our next phase of development in this area will entail drilling lateral lengths greater than 7,000 feet, which our acreage position accommodates.”

Crimson Exploration is a Houston, TX-based independent energy company engaged in the acquisition, development, exploitation and production of crude oil and natural gas, primarily in the onshore Gulf Coast regions of the United States.  The Company owns and operates conventional properties in Texas, Louisiana, Colorado and Mississippi, including approximately 18,500 net acres in Madison and Grimes counties in Southeast Texas, approximately 8,200 net acres in the Eagle Ford Shale in South Texas, approximately 11,000 net acres in the Denver Julesburg Basin of Colorado, and approximately 5,700 net acres in the Haynesville Shale, Mid-Bossier, and James Lime plays in San Augustine and Sabine counties in East Texas.
Additional information on Crimson Exploration Inc. is available on the Company's website at http://crimsonexploration.com.

This press release includes “forward-looking statements” as defined by the Securities and Exchange Commission (“SEC”) and applicable securities laws. Such statements include those concerning Crimson’s strategic plans, expectations and objectives for future operations. All statements included in this press release that address activities, events or developments that Crimson expects, believes or anticipates will or may occur in the future are forward-looking statements. These statements are based on certain assumptions Crimson made based on its experience and perception of historical trends, current conditions, expected future developments and other factors it believes are appropriate under the circumstances. Such statements are subject to a number of assumptions, risks and uncertainties, many of which are beyond Crimson’s control. Statements regarding future production, revenue, cash flow operating results,  leverage, drilling rigs operating, drilling locations, funding, derivative transactions, pricing, operating costs and capital spending, tax rates, and descriptions of our development plans are subject to all of the risks and uncertainties normally incident to the exploration for and development and production of oil and gas. These risks include, but are not limited to, commodity price changes, inflation or lack of availability of goods and services, environmental risks, the proximity to and capacity of transportation facilities, the timing of planned capital expenditures, uncertainties in estimating reserves and forecasting production results, operating and drilling risks, regulatory changes and the potential lack of capital resources. All forward-looking statements are based on our forecasts for our existing operations and do not include the potential impact of any future acquisitions.  Investors are cautioned that any such statements are not guarantees of future performance and that actual results or developments may differ materially from those projected in the forward-looking statements. Please refer to our filings with the SEC, including our Form 10-K for the year ended December 31, 2011, and subsequent filings for a further discussion of these risks. Existing and prospective investors are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date hereof. We undertake no obligation to publicly update or revise any forward-looking statements after the date they are made, whether as a result of new information, future events or otherwise.

Crimson Exploration Inc.
E. Joseph Grady, 713-236-7400
Senior Vice President and Chief Financial Officer
Josh Wannarka, 713-236-7400
Manager of Investor Relations and FP&A