Spudding of Pintadillo-1, Platanillo N Sand

31 August 2018

Amerisur Resources Plc ("Amerisur" or the "Company")

Spudding of Pintadillo-1, Platanillo N Sand

Amerisur Resources Plc, the oil and gas producer and explorer focused on South America, is pleased to announce that the spudding of Pintadillo-1, in the central part of the Platanillo block using Rig D-10 occurred on 30 August 2018.

Pintadillo-1 is the first of up to three wells targeting the N Sand anomaly, which has been identified on 3D seismic. Pintadillo-1 will be a slightly deviated well, with a planned total measured depth of 8,448 feet.

The N Sand anomaly at Pintadillo is one of four such anomalies identified by the Company in the central part of the Platanillo block. It is estimated to hold P50 resources of 11.44 mmbo. Photos of the mobilisation operations have been posted to the Company's Twitter feed and can be found on the Company website.

Amerisur is 100% owner and Operator of the Platanillo block. The Company will make a further announcement in due course once the well has been drilled and logged.

John Wardle, CEO of Amerisur Resources said:

"We are delighted to have commenced the drilling of Pintadillo-1, in the central part of the Platanillo block, the first of up to three fully-funded wells targeting the N Sand anomaly and estimated to hold P50 resources of 11.44mmbo. This is an exciting time for the Company and I look forward to updating shareholders in due course on the results."

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 and production from two fields in Colombia. In 2016 Amerisur successfully built and is 100% owner of the strategic OBA oil transfer line into Ecuador.

In Colombia, the Company is operator and has a 100% working interest in the Platanillo block which includes the Platanillo producing field in the Putumayo basin, and holds a 30% non-operated working interest in the CPO-5 block containing the Mariposa-1 producing field in the Llanos basin.

Amerisur has a strong position in the Putumayo basin and has a cluster of near term activity assets around the OBA export line.

This announcement contains inside information as defined in EU Regulation No. 596/2014 and is in accordance with the Company's obligations under Article 17 of that Regulation.

www.amerisurresources.com 

These assessments are made in accordance with the standard defined in the SPE/WPC Petroleum Resources Management System (2007).

Competent person: Technical information in this announcement has been reviewed by John Wardle Ph.D., the Company's Chief Executive. John Wardle has 32 years' experience in the industry, having worked for BP, Britoil, Emerald Energy and Pebercan, and is a trained drilling engineer.

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