** FT ST Oil & Gas index, measuring 16 oil and gas stocks on the Singapore Exchange, falls to the lowest level since January 2012.
** Index loss led by oilfield service companies Swiber Holdings Ltd and Falcon Energy Group Ltd, which are down 5 percent and 3 percent respectively.
** Swiber in Q3 swung into the first quarterly loss since the end of 2009, while Falcon Energy's Q2 net profit nearly halved from a year earlier.