Swedish player Tethys Oil has spudded a key exploration well on Block 49 onshore Oman.

Tethys said on Monday that the Thameen-1 well has a planned drilling depth of about 4000 metres, with drilling operations expected to last about 45 days.

Tethys managing director Magnus Nordin said the onshore well “is designed to penetrate several potentially hydrocarbon bearing rock layers".

“We have three defined targets, but we will analyse all data from the well to increase our understanding of the potential oil plays in the block, conventional as well as unconventional,” he added.

Block 49 covers 15,439 square kilometres in south-west Oman, within the Governate of Dhofar, the company said.

Tethys entered into a farm-out agreement with US Independent EOG Resources last November, selling a 50% stake in the block, subject to pending regulatory approvals.

Tethys remains operator of the Block 49 and holds 50% of the licence interest.

The farm-out deal will see EOG gain access to 2D and 3D seismic data as well as nine existing wells on Block 49, the US player earlier said.

Sign up for our new energy transition newsletter

Gain valuable insight into the global oil and gas industry's energy transition from Accelerate, the new weekly newsletter from Upstream and Recharge. Sign up here