HOUSTON, July 29 (Reuters) - Venezuela's state-run PDVSA has launched a tender to buy four 500,000 barrel cargoes of heavy naphtha to be received from September to December at any of its ports, according to a document seen by Reuters on Tuesday.
The oil company, which last month bought a gasoil cargo and has recently been selling jet fuel and ultra-low sulfur diesel (ULSD) on the open market, uses imported heavy naphtha to mix with its heavy crude production.
The company said in the invitation that it could request up to three additional monthly cargoes of heavy naphtha, with maximum 500 parts per million sulfur, from the tender winner.
Payments will be made 25 days after discharge and deliveries can be made at any of its ports in Venezuela, as well as in Bonaire, Bahamas, Curacao and Aruba in the Caribbean.
It will receive offers until August 5 and they must be indexed to unleaded gasoline 87 prices from the U.S. Gulf Coast.
PDVSA in April offered to buy through the open market 2-8 cargoes of heavy naphtha for delivery from May to June. (Reporting by Marianna Parraga; Editing by Terry Wade)