castanha-1

I don't remember actually been given the flow rates at Castanha-1. Annual report referrs to "flowed 33? API oil at a rate of 2,275 BOPD through a 5/8 inch choke." ROC now only holds 10% interest down from 60% interest previously:

Extract from page 16 of yesterday's Annual Report:

Angola

"Following the farm-out of a 45% participating interest to Pluspetrol Angola Corporation (?Pluspetrol?) and a 5% participating interest to Cuba Petroleo, ROC holds a 10% participating interest in the Cabinda Onshore South Block and was free-carried through the 2009 exploration programme. Pluspetrol assumed operatorship in September 2009. Operations to re-enter Coco-1 (a 2008 oil discovery) for extended well testing commenced in late October 2009 and were completed.

The Castanha-1 exploration well commenced drilling in November 2009 and reached Total Depth of 3,400 mBRT in February 2010. The well encountered a gross hydrocarbon column of approximately 15 metres between 2,214 mBRT and 2,229 mBRT, and production testing from a four metre test interval (between 2,217 mBRT and 2,221 mBRT) in the pre-salt Chela Formation flowed 33? API oil at a rate of 2,275 BOPD through a 5/8 inch choke.

Planning is in progress for a 140 km2 3D seismic survey commencing in May 2010 to evaluate the block?s remaining prospectivity north and east of the Castanha-1 discovery."

Regards

SP