PTTEP Discovers Oil and Gas at Sirung-1 Well, Offshore Malaysia

Mar 30, 2021

Credit: PTTEP

Thai oil and gas company PTTEP has made an oil and gas discovery from the first exploration well, Sirung-1, in Block SK405B, off the coast of Sarawak, offshore Malaysia.

Phongsthorn Thavisin, PTTEP Chief Executive Officer, disclosed that PTTEP, through its subsidiary PTTEP Sarawak Oil Limited, commenced the drilling of the Sirung-1 wildcat well in Block SK405B in January 2021.

The well, spudded in January, was drilled to a total depth of 2,538 meters where it encountered a significant oil and gas column of more than 100 meters, in the clastic reservoirs. An appraisal well is scheduled in near future to assess the upside resources, PTTEP said.

“The Sirung-1 exploration well marks PTTEP’s third discovery offshore Malaysia following SK410B’s Lang Lebah and SK417’s Dokong. PTTEP also plans to explore nearby prospects in this PSC next year. The achievements have strengthened our investment base as we continue to expand our exploration horizon in Malaysia,” said PTTEP CEO Phongsthorn Thavisin.

Petronas Vice President of Exploration, Upstream, Emeliana Rice-Oxley said: “The Sirung-1 discovery further proves the presence of oil, especially in the under-explored deeper play within the Balingian Province. This came after similar success in an infill well at D18 Field. We are well-positioned to pursue a similar play in the other two neighboring blocks in the same province, namely Blocks SK411 and SK306. As such, developing this block and other surrounding areas remains an integral part of Petronas and our partners’ long-term growth plans.

“We are very encouraged by the continued success with our partners on the consecutive discoveries this year in Malaysia and remain optimistic in our exploration activities for 2021,” she added.

Block SK 405B is located in shallow waters, approximately 137 kilometers off the coast of Sarawak (Bintulu). PTTEP Sarawak Oil Limited is the operator with 59.5 percent participating interest. MOECO Oil (SARAWAK) SDN.BHD. and PETRONAS Carigali Sdn. Bhd. holds 25.5 and 15 percent interest respectively.