Simwell was awarded this licence in the UK 29th Round, with 100% equity. Simwell has mapped two large Carboniferous closures (Scremerston and Fell Sandstones) and a shallower fractured/reefal Zechstein Z3 carbonate play fairway. Each of the two Carboniferous Leads has the potential to hold in excess of 500bcf of recoverable gas and is less than 50kms northwest of the producing Breagh gas field.

In February 2019 Shell farmed into the adjoining blocks 41/5 and 41/10. They plan to acquire new broadband 3D seismic over the Zechstein reef play, which extends into the eastern part of Simwell’s blocks. This survey was started on the 1st of August 2019 and arrangements were made so it including some 200 sq km coverage over Simwell's licence

In April 2020 a farm out was completed with Simwell retaining a 30% interest in the licence. The 3D is now being processed.