Middle Eastern focused Gulf Keystone (AIM: GKP) has experienced a slightly softer couple of sessions after achieving strong gains last week. Shares in Gulf Keystone slipped 3p per share this morning. Mediterranean Oil & Gas (AIM: MOG) dropped over 6% after it announced its interims results. Similarly South American focused Pan Andean Resources (AIM: PRE) slipped three quarters of a penny despite reporting a 10% increase in revenue.