Ex 99.1 Resignation Letter - Murray Conradie Murray Conradie January 18, 2008 Board of Directors South Texas Oil Company Austin, Texas Gentlemen: Please take notice that, effective immediately, I resign from the Corporation's Board of Directors and from all Committee positions held by me on behalf of the Corporation. I also hereby resign as Chief Executive Officer of the Corporation. Sincerely, /s/ Murray Conradie _________________________ Murray Conradie