Hartshead Resources (ASX:HRR) is nearing completion of the Field Development Plan (FDP) for Phase I of the Anning and Somerville gas fields development project, with submission to the North Sea Transition Authority expected soon.

The energy business said the project aims for first gas production in 2025, with Phase 1 Front End Engineering Design now 90% complete.

It also said additionally, the UK 33rd Offshore Licensing Round decision is expected in H2 2023.

Hartshead Resources' share price hit $0.027 at 10:21am AEST.