Pierre Andurand, one of the most bullish oil investors, lost 15.2 percent in July after markets sold-off, bringing his eponymous hedge fund into the red for the year, according to people familiar with the matter. After the July loss, the oil-focused Andurand Capital Management LLP fund was down 5 percent through the first seven months of the year, the same people said, asking not to be named discussing private data. The losses came as global oil benchmarks suffered their biggest monthly drop since 2016.