Output up 78pc at Amerisur field

Oil and gas explorer Amerisur Resources yesterday announced improved results in Colombia and Paraguay. The South Americafocused firm has increased production at its Colombian Platanillo field from over 4,000 to 7,100 barrels of oil per day. “For us, this 77.5 per cent rise in volumes reinforces the operational and logistical performance of [Amerisur] against a challenging backdrop,” said broker Investec. Chief executive John Wardle said: “This is a very strong endorsement of the geological model and bodes well for the wells to the north.”