Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (File Nos. 333-56961 and 333-70137) and Form S-3 (File No. 333-116390) of Brigham Exploration Company of our report dated March 30, 2005, relating to the consolidated financial statements, management’s assessment of the effectiveness of internal controls over financial reporting and the effectiveness of internal control over financial reporting, which appears in this Form 10-K.

/s/ PricewaterhouseCoopers LLP

Houston, Texas
March 31, 2005