UK oil and gas explorer Emerald Energy said today that it successfully completed the first flow-testing operation in the Caballos formation in the Gigante No.2 well in Colombia.

Oil of about 32 degrees API gravity flowed to surface, under natural flow, at an average rate of 185 barrels per day, Emerald said in a statement.

The company said it looked forward to the results of further testing of the Caballos formation, the exploration target in the Gigante No.2 well, before proceeding to the flow testing of the Tetuan reservoir, reported Reuters.