Ecopetrol is trading at $17.43, up 5.15% in pre-market on September 28; oil’s rebound is relevant sector context, not a confirmed cause of the move.

  • September 25 close: $16.58.
  • Reuters reported Brent rose 1.27% and WTI 0.76% early Monday after President Trump rejected Iran’s proposal to reopen the Strait of Hormuz.
  • CEO Joaquín Gutiérrez Caballero takes office September 28 after the board announced his appointment September 24; reporting does not link the transition to the rise.