Ann: Half Year Report and Accounts, page-5

15% discount rate will not even be close to get a buyer.

This is a risky instrument and hard to sell for a few reasons:
1. There is oil production risk. Early production signs are positive but even so, at $70/bbl you'll only just get the full contingent payment. If there are production issues, then not enough barrels will come out even at $70/bbl to get the full payment.
2. It's very expensive to hedge oil, so if you want a 15% p.a return after hedging, you need to be buying at closer to a 40% discount rate before hedging costs.
3. Senegal is a risky jurisdiction and they will try and hit you any way they can think off to extract your money. See prior Senegal / FAR / Capricorn energy dispute and now Woodside / Senegal dispute.

If you get unlucky on any of the 3 above, a lot of money can be lost on this.

The odds of getting a sale away in my view are low.

Management will likely be happy to sit on the contingent payment and get paid for another 3 years of doing nothing unless major shareholders push them.