BOWLEVEN has hit complications with its exploration activity in Africa.

The Edinburgh-based company is facing a delay with the start of drilling on the Bomono permit onshore Cameroon.

It said routine function checks have identified certain mechanical and control issues that need to be addressed by contractor AODL before drilling operations commence on the Zingana well.

A further update on the expected spud date marking the start of drilling will be provided in due course. In January Bowleven said the Zingana well was due to be spudded in February.

The company noted yesterday continuing work on the development options in the event of success on Bomono is advantaged by the evolving industry cost environment. The costs of oil and gas support services have fallen in response to the drop in crude prices since June.

Aim-listed Bowleven is facing challenges in Kenya, where it is conducting early stage exploration work with Adamantine.

The company said Adamantine has applied for a 15 month extension to the licence for an exploration block to allow for the completion of 2D seismic survey work. It added: " Logistical issues, including security concerns, have delayed the commencement of seismic operations." The first exploration phase of the licence is due to expire on 26 May.

Last month Bowleven cleared the final official hurdle in the way of completing the $250m (£163m) Cameroon stake sale it agreed in June putting the oil and gas company in line for a big cash injection.