Drilling Commences in Cabinda Block



Lacula Oil, a wholly owned subsidiary of ROC, advised that the Castanha-2 appraisal well started drilling at 2100 hours (Angola time) on July 28. At 0600 hours on July 29, (Angola time) the well was drilling ahead at a measured depth of 43 meters.

Castanha-2 is located in the Cabinda Onshore South Block, Angola and is testing the Castanha-1 oil discovery. The planned target depth of the well is 2,305 meters.

Production testing on the Castanha-1 discovery was undertaken in 1Q 2010 and recovered 33º API to surface from the pre-salt Chela Formation, with a maximum flow rate of 2,275 BOPD through a 5/8 inch choke.

Consistent with ROC's established practice regarding Angolan drilling activity, the Company will only issue public statements at the beginning and end of each drilling operation. Castanha-2 drilling results are expected to be reported in September.

Participating Interests in the Cabinda Onshore South Block are:

  • Pluspetrol Angola Corporation (Operator)...............45%
  • Lacula Oil Company Limited (ROC).........................10%
  • Force Petroleum de Angola, S.A................................20%
  • Sonangol P&P...............................................................20%
  • Cuba Petroleo.................................................................5%