Master Drilling revenue for the year increased by 14.2 per cent to 138.7 million US dollars .Headline earnings per share for the rand has decreased by 8 per cent to 141.8 cents with the US headline earnings per share also having a decrease a 7.8 per cent to 10.7 cents per share. The CEO suggested that the results have shown that the macroeconomic operation environment had proven to be more difficult than anticipated, both globally and domestically. Master Drilling CEO, Danie Pretorius joins CNBC Africa for more….