Petronas Carigali Sdn Bhd, the exploration and production arm of Petronas, has made two significant gas discoveries in the shallow waters off west coast of Sabah.
In a statement, Petronas said the first discovery was via the Zuhai East-1 well, which was located in the Samarang Asam Paya Block about 130km south-west of Kota Kinabalu.
"The current estimate of gas-initially-in-place is about 550 billion standard cu ft," it said.
Similar reservoirs in a nearby well about 5 km to the east of the Zuhai East discovery were tested to flow gas at a maximum rate of 21 million standard cu ft per day, it said.
Petronas Carigali is the sole equity holder of the production-sharing contract (PSC) of the Samarang Asam Paya Block.
It said the second discovery, at the Menggatal-1 well, was located in Block SB312, about 110km north-east of Kota Kinabalu.
"The Block SB312 PSC is a joint-venture between Petronas Carigali with 60 per cent equity and KUFPEC Malaysia (SB 312) Ltd, a subsidiary of Kuwait Foreign Petroleum Exploration Co, which holds the remaining interest," it said.