HOUSTON, June 23 (Reuters) - Colombia's state-run Ecopetrol has launched a tender to buy a 170,000-180,000 barrel cargo of diluent naphtha to be received on July 10-18 at the U.S. Gulf Coast, the Caribbean or Barranquilla port, according to a document seen by Reuters on Monday.
The oil company this month bought several cargoes of gasoline, ultra low-sulfur diesel (ULSD) and jet fuel while its 80,000 barrel per day (bpd) Cartagena refinery undergoes a big expansion project to double its crude distillation capacity.
For this tender, the company will receive bids until Tuesday and they must be indexed to natural gasoline prices at Mont Belvieu, the invitation says.
Colombia has two refineries, Cartagena and Barrancabermeja, with more than 300,000 bpd of joint capacity. (Reporting by Marianna Parraga)