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**FORM        10**
**Q/A**

**(Amendment        No. 2)**

**x            QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15 (d)**

**OF        THE SECURITIES EXCHANGE ACT OF 1934**

**OR**

**oTRANSITION        REPORT        PURSUANT TO SECTION 13 OR 15(d)**

**OF        THE SECURITIES EXCHANGE ACT OF 1934**

**000-22433**

**Brigham        Exploration Company**

| **Delaware**                                                                    | **1311**                                                                  | **75-2692967**                                           |
|---------------------------------------------------------------------------------|---------------------------------------------------------------------------|----------------------------------------------------------|
| (State                  of other jurisdiction of incorporation or organization) | (Primary                  Standard Industrial Classification Code Number) | (I.R.S.                  Employer Identification Number) |

**6300        Bridge Point Parkway, Building 2, Suite 500, Austin, Texas        78730**

**(512)        427-3300**

| **Class**                                                                 |   | **Outstanding** |
|---------------------------------------------------------------------------|--------|-----------------|
| Common                  Stock, par value $.01 per share as of May 3, 2005 |   | 42,489,396      |

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**Explanatory        Note**

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**BRIGHAM        EXPLORATION COMPANY**

**CONSOLIDATED        STATEMENTS OF STOCKHOLDERS' EQUITY**

**(In        thousands)**

**(Unaudited)**

|                                                              |   | **Common****Stock** |    | **Additional****Paid                    In** |   | **Treasury** |         | **Unearned****Stock** |    | **Accumulated****Other****Comprehensive** |   | **Retained**                         |    | **Total****Stockholders'** |    |
|-------------------------------------------------------------------|--------|---------------------|---------|----------------------------------------------|--------|--------------|--------------|-----------------------|---------|-------------------------------------------|--------|--------------------------------------|---------|----------------------------|---------|
|                                                              |   | **Shares**          |    | **Amounts**                                  |   | **Capital**  |         | **Stock**             |    | **Compensation**                          |   | **Income                    (Loss)** |    | **Earnings**               |    | **Equity** |   |
| Balance,                    December 31, 2004                     |   |                | 43,231  |                                    | $      | 432          |    | $                     | 175,270 |                                 | $      | (4,707                               | )  | $                          | (1,570  | )  | $ | (503 | )  | $ | 14,354 |    | $ | 183,276 |   |
| Comprehensive                    income:                          |   |                |    |                                         |   |         |         |                  |    |                                      |   |                                 |    |                       |    |   |   |   |   |   |   |   |   |   |   |
| Net                    income                                     |   |                | — |                                         |   | —      |         |                  | — |                                      |   | —                              |    |                       | — |   |   | — |   |   | 3,048 |   |   | 3,048 |   |
| Unrealized                    gain (losses) on cash flow hedges   |   |                | — |                                         |   | —      |         |                  | — |                                      |   | —                              |    |                       | — |   |   | (609 | ) |   | — |   |   | (609 | ) |
| Tax                    benefits related to cash flow hedges       |   |                | — |                                         |   | —      |         |                  | — |                                      |   | —                              |    |                       | — |   |   | (3 | ) |   | — |   |   | (3 | ) |
| Net                    losses included in net income              |   |                | — |                                         |   | —      |         |                  | — |                                      |   | —                              |    |                       | — |   |   | 616 |   |   | — |   |   | 616 |   |
| Comprehensive                    income                           |   |                |    |                                         |   |         |         |                  |    |                                      |   |                                 |    |                       |    |   |   |   |   |   |   |   |   | 3,052 |   |
| Exercises                    of employee stock options            |   |                | 77      |                                         |   | 1            |         |                  | 250     |                                      |   | —                              |    |                       | — |   |   | — |   |   | — |   |   | 251 |   |
| Vesting                    of restricted stock                    |   |                | 65      |                                         |   | 1            |         |                  | (1      | )                                         |   | —                              |    |                       | — |   |   | — |   |   | — |   |   | — |   |
| Issuance                    of restricted stock                   |   |                | — |                                         |   | —      |         |                  | 602     |                                      |   | —                              |    |                       | (602    | ) |   | — |   |   | — |   |   | — |   |
| Tax                    benefit from the exercise of stock options |   |                | — |                                         |   | —      |         |                  | 145     |                                      |   | —                              |    |                       | — |   |   | — |   |   | — |   |   | 145 |   |
| Repurchases                    of common stock                    |   |                | — |                                         |   | —      |         |                  | — |                                      |   | (190                                 | )       |                       | — |   |   | — |   |   | — |   |   | (190 | ) |
| Amortization                    of unearned stock compensation    |   |                | — |                                         |   | —      |         |                  | — |                                      |   | —                              |    |                       | 169     |   |   | — |   |   | — |   |   | 169 |   |
| Balance,                    March 31, 2005                        |   |                | 43,373  |                                         | $      | 434          |         | $                     | 176,266 |                                      | $      | (4,897                               | )       | $                          | (2,003  | ) | $ | (499 | ) | $ | 17,402 |   | $ | 186,703 |   |

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**PART        II - OTHER INFORMATION**

| **ITEM                  6.** | **EXHIBITS** |
|------------------------------|--------------|

| 31.1 | Certification                  of Chief Executive Officer of the Company pursuant to Rule 13a-14(a)                  of                  the Securities Exchange Act of 1934 |
|------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 31.2 | Certification                  of Chief Financial Officer of the Company pursuant to Rule 13a-14(a)                  of                  the Securities Exchange Act of 1934 |
|------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 32.1 | Certification                  of Chief Executive Officer of the Company pursuant to 18 U.S.C.§                  1350 |
|------|----------------------------------------------------------------------------------------------------------------------------|

| 32.2 | Certification                  of Chief Financial Officer of the Company pursuant to 18 U.S.C.§                  1350 |
|------|----------------------------------------------------------------------------------------------------------------------------|

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**SIGNATURES**

|   | **BRIGHAM                  EXPLORATION COMPANY**  |                                                |
|--------|--------------------------------------------------------|-----------------------------------------------------|
|   |                                                   |                                                |   |
|   |                                                   |                                                |   |
|   | By:                                                    | /s/                  BEN M. BRIGHAM                 |   |
|   |                                                   | Ben                  M. Brigham                     |   |
|   |                                                   | Chief                  Executive Officer, President |   |
|   |                                                   | and                  Chairman of the Board          |   |
|   |                                                   |                                                |   |
|   |                                                   |                                                |   |
|   |                                                   |                                                |   |
|   | By:                                                    | /s/                  EUGENE B. SHEPHERD, JR.        |   |
|   |                                                   | Eugene                  B. Shepherd, Jr.            |   |
|   |                                                   | Executive                  Vice President and       |   |
|   |                                                   | Chief                  Financial Officer            |   |

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