X0303 4 2009-12-21 0 0001034755 BRIGHAM EXPLORATION CO BEXP 0001079492 BRIGHAM BEN M 6300 BRIDGE POINT PKWY BLDG 2 STE 500 AUSTIN TX 78730 1 1 0 0 President and CEO Common Stock, par value $.01 2009-12-21 5 G 0 E 700 0 D 1026987 D Common Stock, par value $.01 2009-12-21 5 G 0 E 700 0 D 824665 I By Spouse Common Stock, par value $.01 2009-12-21 5 G 0 E 4000 0 D 1022987 D Common Stock, par value $.01 2009-12-21 5 G 0 E 4000 0 D 820665 I By Spouse Common Stock, par value $.01 2009-12-21 5 G 0 E 8000 0 A 88400 I By Brother Common Stock, par value $.01 2009-12-31 4 F 0 7327 13.855 D 1015660 D Common Stock, par value $.01 2010-01-01 4 A 0 5000 0 A 1020660 D Common Stock, par value $.01 2010-01-01 4 F 0 1633 13.855 D 1019027 D Common Stock, par value $.01 147500 I 2005 Brigham Family Revocable Trust Common Stock, par value $.01 250000 I By Ben M. Brigham 2008 Grat u/a November 26, 2008 Trust Common Stock, par value $.01 250000 I By Anne L. Brigham 2008 Grat u/a November 26, 2008 Trust Common Stock, par value $.01 4682 I By Parental Trust I Common Stock, par value $.01 2206 I By Parental Trust II The reporting person and his spouse each made gifts of 100 shares each to 7 different recipients. The reporting person and his spouse each made five transfers of 800 shares each to David T. Brigham as custodian for each of their five children under the Texas Uniform Transfers to Minors Act. Reflects reporting person's exchange of Restricted Stock for the tax withholding obligation that was triggered by the vesting of Restricted Stock. Restricted Stock grant made to reporting person pursuant to the 1997 Incentive Plan of Brigham Exploration Company. The granted restricted stock vests on January 1, 2015. The reporting person and his spouse are the donors and beneficiaries of the 2005 Brigham Family Revocable Trust. Reporting person is the trustee of the trust. Reporting person's spouse is the trustee of the trust. Trust for the benefit of the parents of the reporting person. The reporting person and his spouse are the trustees of the trust. Trust for the benefit of the parents of the reporting person's spouse. The reporting person and his spouse are trustees of the trust. Ben M. Brigham 2010-01-05