Sept. 30 (Bloomberg) -- The following companies had unusual price changes in Bogota trading. Stock symbols are in parentheses and prices are as of 4 p.m. New York time.

The IGBC Index fell 0.1 percent to 12,915.80, while the Colcap Index dropped 1.1 percent to 1,584.75.

Grupo Aval Acciones y Valores SA (AVAL CB), Banco de Bogota’s parent company, rose 2.4 percent to 1,270 pesos. Net income increased to 582.7 billion pesos ($301.6 million) in the first half of the year, the company said in a filing, from 462.95 billion pesos a year ago.

Oil companies dropped as crude sank as much as 3.6 percent as signs of slowing growth in China, the U.S. and Germany heightened concern that fuel demand will suffer.

Ecopetrol SA (ECOPETL CB), Colombia’s largest oil company, fell 2.7 percent to 3,860 pesos.

Canacol Energy Ltd. (CNEC CB), the Calgary-based oil company that operates fields in South America, fell 2.1 percent to 1,190 pesos.

--Editors: Glenn Kalinoski, Brendan Walsh

To contact the reporter on this story: Andrea Jaramillo in Bogota at ajaramillo1@bloomberg.net

To contact the editor responsible for this story: David Papadopoulos at papadopoulos@bloomberg.net