GASFRAC Energy Services, Inc. announced that Mark Williamson has resigned as Chairman, Interim Chief Executive Officer and a director of the Corporation and Larry Lindholm has resigned as a director of the Corporation, both to pursue other business opportunities and to avoid any concerns regarding potential conflicts of interest involving the Corporation or the SISP Procedure. Lori-McLeod Hill will continue in her role as Chief Financial Officer of the Corporation to assist in the court supervised SISP and restructuring activities with supervision of the Special Committee of the Corporation, who remain actively involved in the overall process.