AMER.L Regulatory News (AMER)

8 Aug 2008 07:00



8th August 2008 

Amerisur Resources Plc ("the Company")

Operations Update re Platanillo

Amerisur Resources Plc, the oil and gas explorer and developer focused on South America, is

pleased to provide an update on the long-term testing at its Platanillo block.

The separator and gas flare system have been installed and commissioned at the Alea location,

and well Platanillo-2 began production testing in line with the approved long-term testing

programme on 5th August. The well is currently producing 70 BOPD, 0% base sediment and water

(BS&W) in natural flow through a 10/64" choke with 260psi of well head pressure. 

Alea-1R, which was re-opened on 27th July, continues in production testing with oil also being

received into the newly commissioned facilities.

Both wells are currently stabilising, after which the simultaneous testing programme will

commence. The Company looks forward to updating further progress on the testing in due course.

Ends

Competent person: Technical information in this announcement has been reviewed by John

Wardle Ph.D., the Company's Chief Executive. John Wardle has 24 years experience in the

industry, having worked for BP, Britoil, Emerald Energy and Pebercan, and is a trained drilling

engineer.

ENQUIRIES: