Andaman exploration blocks

We are the operator of the Andaman I and South Andaman Gross Split PSCs with 80 percent interest and have a 30 percent interest in the adjacent Andaman II PSC and 40 percent interest in the Central Andaman block.

Mubadala Energy is the largest net acreage holder in the area, securing the core of the North Sumatra basin for the future exploration growth with the potential to unlock a new material gas play.

In 2023, Mubadala Energy announced a major gas discovery at Layaran-1 exploration well in the South Andaman block, offshore North Sumatra, with the potential for over 6 TCF of excellent quality gas-in-place.

This marked the first deep water well operated by the company, which was drilled to a depth of 4,208 meters in 1,207 meters water depth.

The well encountered an extensive gas column with a thickness of over 230 meters in an Oligocene sandstone reservoir. A complete data acquisition including wireline, coring, sampling and production test (DST) were conducted. The well successfully flowed over 30mmscf/d of excellent gas quality.

In 2024, Mubadala Energy announced another gas discovery at Tangkulo-1 Exploration well, drilled in South Andaman, about 65 kilometres offshore North Sumatra, with the potential for over 2 TCF of gas-in-place.

The discovery marks the second deep water well operated by the company. Tangkulo-1 was drilled to a depth of 3,400 meters in 1,200 meters water depth, just a few months after the major discovery at the Layaran-1 well, also in South Andaman.

These discoveries add material contingent volume that enhances the energy security in the region and provide a platform for continued growth for Mubadala Energy.