Marjoram/Rosmari is a conventional gas development located in deepwater in Malaysia and is operated by Sarawak Shell. According to GlobalData, who tracks more than 34,000 active and developing oil and gas fields worldwide, Marjoram/Rosmari was discovered in 2014, lies in block SK 318, with water depth of around 2,624 feet. Buy the profile here.

The project is currently in construction stage and is expected to start commercial production in 2026. Final investment decision (FID) of the project was approved in 2022. The Marjoram/Rosmari conventional gas development will includes fixed platform, subsea tree, and wellhead platforms.

Field participation details

The field is owned by Petroliam Nasional and Shell.

Production from Marjoram/Rosmari

Production from the Marjoram/Rosmari conventional gas development project is expected to begin in 2026 and is forecast to peak in 2029, to approximately 16,500 bpd of crude oil and condensate and 495 Mmcfd of natural gas. Based on economic assumptions, the production will continue until the field reaches its economic limit in 2060.

Remaining recoverable reserves

The field is expected to recover 443.45 Mmboe, comprised of 61.38 Mmbbl of crude oil & condensate and 2,292.42 bcf of natural gas reserves.

Contractors involved in the Marjoram/Rosmari conventional gas field

Some of the key contractors involved in the Marjoram/Rosmari project as follows.

Design/FEED Engineering: Worley

Main EPC: Petroliam Nasional

About Sarawak Shell

Sarawak Shell Bhd, carries out the exploration and production of oil and gas on land and at sea. The company offers a range of energy solutions and petrochemicals. It is headquartered in Kuala Lumpur, Malaysia.

For more details on the Marjoram/Rosmari Conventional Gas Field, buy the profile here.


GlobalData, the leading provider of industry intelligence, provided the underlying research used to produce this article.

This information is drawn from GlobalData’s Oil & Gas Intelligence Center, which provides detailed profiles of 34,000+ oil and gas fields, 400,000+ exploration blocks, 1,100+ LNG terminals, 3,400+ gas processing plants, 5,000+ storage terminals, and 8,000+ pipelines, 1,400+ refineries and 13,000+ petrochemical plants worldwide.