I didn't see Malanza in the slide presentation either, I do think the way each prospect has been presented is significant:
Bomu - mostly gas, not stand alone commercial.
Lemba - biogenic gas
Kina and Oki East - gas, but more analysis necessary.
Malanza - no mention
If it were all stand alone non-commercial gas, then they would've all been treated the same in the presentation. Note the differences, in their treatment.
We may actually see the share price move up today (call me crazy), but it would appear that the all gas issue has been baked into the share price, and now we have more certainty on the prospects as listed above, and the market likes certainty.
Krombacher