BOGOTA, April 11 (Reuters) - Lower oil prices could

bring Colombian state-run oil firm Ecopetrol's profits down by

up to 12 trillion pesos ($2.76 billion) this year, the company's

president warned on Friday.

Ecopetrol may also have to scrap production at some fields

and focus on those with lower costs, president Ricardo Roa told

journalists on the sidelines of an industry event.