The Koba-1 well is being drilled by the Saipem-owned rig Drillmec Mas 7000 to a planned total depth of 2700 metres.
The prospect is targeting Lower Liassic and Upper Triassic clastic reservoirs, with operations expected to take about 50 days, Longreach said on Monday.
“Longreach has carried out an extensive work programme of geophysical, geological and related studies to define and de-risk the portfolio of leads and prospects from which Koba has been selected as the prime candidate for drilling,” chief executive Andrew Benitz said in a statement.
Longreach is operating the well with a 50% stake. It is partnered by Moroccan state energy company ONHYM and Maghreb Petroleum Exploration, with each holding a 25% carried interest.