AIM-listed San Leon Energy has revised the terms of its settlement with Avobone.
The Africa and Europe focussed firm has now made a €3 million part payment on the second amount due to the Swiss based group.
A revised schedule of payments has also been agreed which will see sums in excess of €19million paid to Avobone before the end of the year.
Avobone have a High Court order which can be enforced should payments be missed.