* New oilfield development drop to lowest since 1999 * Global reserve replacement ratio falls steeply * Enhanced oil recovery from mature field is partial solution Two years ago Total (NYSE: TOT – news ) ‘s chief Christophe de Margerie launched a “high risk, high reward” oil exploration strategy, betting he could hit a bonanza, even though his rivals had failed to make big discoveries. But Total risks joining the industry trend of making only smaller and fewer finds, despite global investments in oil exploration heading to a record $1 trillion by 2017. This week, Margerie told Reuters he gives himself until the year-end to find a major deposit or cut the exploration budget next year following several disappointing drilling campaigns. Top players are struggling to find enough conventional oil. Majors are caught between growing pressure from investors to cut spending and boost profits and the increasingly costly need […]