KUALA LUMPUR, July 24 — Petronas Carigali Sdn Bhd, a wholly owned subsidiary of Petronas, has made six oil and gas discoveries in five blocks off the coast of Sarawak.

In a statement, Petronas Carigali said the Gedombak well in Block SK306 and the Mirdanga well in Block SK411 (in the Balingian province), the Sinsing well in Block SK313, the Machinchang and Pangkin wells in Block SK301B, and the Kalung Emas well in Block SK315 (in the West Luconia province), stem from new and existing group of oil fields and exhibit low levels of contaminants.