Ultrapetrol is an Argentinian river barges operator.
[1][2][3][4] It has worked with companies such as Petrobras.
[5] In early 2017, Ultrapetrol (Bahamas) Ltd was authored by a New York judge to begin chapter 11 bankruptcy proceedings.
At the time, it was "owner of one of the largest shipping businesses in South America.
"[6]