JSE-listed Master Drilling Group recorded an increase in revenue of 6.9% to $148.3-million for the year ended December 31, and a slight decrease in operating profit of 5.1% to $22.4-million, owing to adverse global market conditions and an uncertain operating environment. “No one can run away from a challenging operating environment, but we can look for ways to mitigate this and other risks. One way to do this is through diversification, which has always been a part of our strategy and I am pleased that we remained on track with this in 2019,” said Master Drilling CEO Danie Pretorius.