Last year, Ecopetrol pulled out of a $3.6 billion deal to buy a stake in Texas shale-oil assets from the US company.--With assistance from Nicolle Yapur. (Adds share move starting in first paragraph.) ...

BOGOTA (Reuters) -Colombian President Gustavo Petro on Tuesday called for the sale of state oil firm Ecopetrol's fracking operations in the United States to invest in clean energy. The leftist ...