Ecopetrol SA is trading at $15.74 (-5.07%) following news of a new six-year collective bargaining agreement with its Oil Workers Union, announced on June 15, 2026. - The agreement, effective from January 1, 2026, aims to stabilize labor relations for the major oil producer. - This decline occurs despite a broader market rally, with the S&P 500 up 1.74% and the Nasdaq up 2.61%, and oil prices under pressure due to U.S.-Iran peace headlines. - The market's reaction suggests investors may be weighing the implications of the new labor terms for the company.