Economy News – 25 Apr 2013 http://www.economy-news.co.uk/shares/share-price-drivers/3267-barclays-plc-and-bg-group-plc-downgrades-454353
Guardian – 23 Apr 2013 http://www.guardian.co.uk/business/marketforceslive/2013/apr/23/arm-profits-beat-forecasts-apple-woes
CityAM – 23 Apr 2013 http://www.cityam.com/article/enrc-shares-likely-remain-volatile-until-takeover-decision
Interactive Investor – 23 Apr 2013 http://www.iii.co.uk/articles/88135/updated-gulf-keystone-investors-divided-over-executive-share-transfer
Economy News – 23 Apr 2013 http://www.economy-news.co.uk/shares/share-price-drivers/3234-tullow-oil-plc-and-gulf-keystone-petroleum-limited-44534543
Independent – 23 Apr 2013 http://www.independent.co.uk/news/business/sharewatch/market-report-gulf-keystone-cops-it-as-boss-sells-down-8583749.html