HOUSTON, Aug 25 (Reuters) - Colombia's state-run oil company Ecopetrol and its Cartagena refinery have launched a tender to buy a 290,000 to 300,000 barrel cargo of gasoline RON 92 for delivery at Mamonal port on September 24 to 26, according to a document seen by Reuters on Monday.
Ecopetrol previously purchased a cargo of gasoline earlier this month and it also offered to buy up to 28 cargoes of ultra low-sulfur diesel (ULSD) for delivery from September to March.
For this latest tender, the company will receive bids until August 27 and they must refer to unleaded gasoline 87 prices from the U.S. Gulf Coast.
The 80,000 barrel per day (bpd) Cartagena refinery, Colombia's second largest, is undergoing a major expansion program that started in March and most of its units will be halted until the second quarter of 2015. (Reporting by Marianna Parraga; Editing by Anna Driver)