Ecopetrol Increases Stake in Exploration of Cano Sur Block

Ecopetrol S.A.

and Shell Exploration and Production Colombia Cano Sur GmbH have reached an agreement whereby Ecopetrol will assume all of the stake that Shell previously held in the exploration of Cano Sur block, located in the Llanos Orientales basin. Ecopetrol will retain a 100% stake in the block and continue as operator to carry out anticipated investment programs associated with it. The agreement is subject to authorization by the National Hidrocarbons Agency, ANH, for concession of interests.