Roughly,
Oil reserves: 2 mmbbl $60M
Oil appraisal: 1.2 mmbbl $22M
Oil Exploration: 2.5 mmbbl $40M
CSG assets: ATP 574, PL171 and Don Juan: $140M
Cash: $40M
Total: $302M
No of shares: 524M
valuation: 57c
Please note these are my own back of envelope figures and I am not a qualified analyst.