Notice of Results

08 April 2013

Amerisur Resources Plc

Notice of Results

Amerisur Resources PLC (AIM: AMER) the oil and gas producer and explorer focused on South America, will announce its audited results for the year ended 31 December 2012 on Wednesday 17 April 2013.

ENDS

ENQUIRIES:

Notes to editors

Amerisur Resources is an independent full-cycle oil and gas company focused on South America, with assets in Colombia and Paraguay. Amerisur's strategy is to acquire, explore and develop large acreage positions in major underexplored basins located in South America.

In Colombia, the Company is operator and has a 100% working interest in the Platanillo block. The 14,341 hectare block is located in the Putumayo Basin, in the south of Colombia, and currently produces around 4,300bopd. In November 2012, the Company successfully bid for block Putumayo-12, which is adjacent to Platanillo and is operator with a 60% working interest. The Company also holds 100% of the Fenix block, a 24,117 hectare area in the Middle Magdalena Basin of Colombia. The company has recently completed the acquisition of a 59.42km 2D seismic survey in the southern part of the Fenix block. In Paraguay, Amerisur is the largest acreage holder in the country, with 6.2 million hectares covering two 100% owned oil and gas permits in the Paraguayan part of the Chaco and Parana Basins.

John Wardle is CEO of Amerisur, having worked in Colombia since 1994, first for BP Exploration and subsequently for Emerald Energy. The Company is chaired by Giles Clarke and is listed on AIM in London.

www.amerisurresources.com