Sonde Resources Corp. has reached a tentative agreement on unitization principles for Zarat field with PA Resources AB to the south of the Joint Oil block. The unit plan of development is on track for submission to Tunisian authorities for approval by the end of the second quarter of 2013.

Sonde and PA Resources are conducting a detailed reservoir technical evaluation. Preliminary results indicate that gas recycling is a viable production option that will allow the production of oil and condensate in advance of gas blow down.