The Market Online - At The Bell

Join our daily newsletter At The Bell to receive exclusive market insights

  • Bass Oil (BAS) has spudded its Tangai-5 development well within its joint ventured project onshore Sumatra in Indonesia
  • During the first week of April, the surface casing was cemented in place
  • Drilling was then re-commenced and the well was drilled to 1348 metres below the rotary table (mRT), the intermediate casing point
  • Currently, the rig is preparing to run and cement the intermediate casing in place
  • Bass Oil is in the grey and last traded at 0.2 cents per share

Bass Oil (BAS) has spudded its Tangai-5 development well within its joint ventured project onshore Sumatra in Indonesia.

The energy company announced it well spudded on the afternoon of April 1.

During the first week of April, the surface casing was cemented in place. Drilling was then re-commenced and the well was drilled to 1348 metres below the rotary table (mRT), the intermediate casing point.

Currently, the rig is preparing to run and cement the intermediate casing in place.

Following this casing, the rig will commence preparations to drill ahead to the total depth of 1673 mRT and then prepare to run the evaluation program this coming week.

The well is estimated to take 32 days to drill and complete, reaching approximately 1650 metres.

The Tangai Field was discovered in 1992 by Pertamina and is a structural closure on the upthrown side of a NE-SW trending fault in the east of the Tangai-Sukananti KSO.

Tangai-1 is currently in production, and Tangai-3 is currently suspended with plans to return the well to production after the completion of Tangai-5.

Bass Oil is in the grey and last traded at 0.2 cents per share at 3:50pm AEST.

BAS by the numbers
More From The Market Online
US and VNZ flag

Week 2 CY26, wrapped: Geopolitics here to stay & there’s money in gold detectors

What does it say about the larger world when the United States government effectively kidnaps the President of Venezuela, and, while bodacious, it’s
The Market Online Video

HotCopper Highlights for Week 2 of 2026: 4D Medical, Pilbara Minerals, SILEX & more

Greetings and welcome to HotCopper Highlights for the end of Week 2 of 2026, I’m Jon Davidson.
A HotCopper-branded graphic image which reads "The HotList Top 10: This week's most watchlisted ASX stocks" in front of an ASX chart image faded in the background.

HotList stocks: Manuka, 4DX, Adalta, and other trending companies in Week 2

Manuka Resources topped the HotCopper HotList through Week 2, though health tech developers Adalta and 4DX…
Metal detector

They say you should sell shovels in a gold rush. Codan’s got a smarter idea

Codan has notched gains just south of +20% on Friday, coming out of the blue as…