3p reserves

Bell Potter has put out a Research Report on ROC's partner in the Beibu Gulf, Horizon Oil. The Reserch Report is available on the Horizon Web Site at:

http://www.horizonoil.com.au/investor-centre/documents/BellPotter090901.pdf

At the bottom of page 5 of that Report they perform a peer group resrves comparisons of EV to 2P and 3P Resrves. When doing the comparison for ROC they refer to 2P and 3P Resrves of 48 and 132.2 Mboe of Resrves for ROC.

Slide 8 of ROC's Half Year Presentation refers to ROC having 2P Resrves and 2C Resources 39.3 MMBOE.

Does anyone knoe where Bell get the 132.2 figure from? What is the difference between 3P and 2C?

Thanks in anticipation.

Regards

SP