SYDNEY (AFX-ASIA) – Fuel refiner and distributor Caltex Australia Ltd said net profit fell 41.5% year-on-year to A$76.2 million in the six months to June as volatility in oil prices during the period caused inventory losses. (US$1=A$1.56). In a statement, Caltex said its RCOP (replacement cost of sales operating profit), which is normalized to exclude…