The appraisal well has been spudded with Romfor 22 rig and reached a total depth of around 1,895m in the lower cretaceous in early February 2014, noted Oryx.
DD-4 well, which was completed as a producing well, has been flowed over a total of 67 hours using a series of different choke sizes.
On a 128/64 choke, the test flowed at a rate of 3,500 bbl/d of oil for a 6 hour period, but was constrained by the diameter of the testing string.
Oryx said that the well data interpretation confirmed the presence of hydrocarbons, a development of matrix porosity and a similar open fracture network as observed in DD-2.
Oryx Petroleum COO Henry Legarre said the DD-4 is the first appraisal well to complete drilling and testing on the Demir Dagh field.
"Overall, the results confirm those of the Demir Dagh discovery with good flow rates, similar fluid characteristics and reservoir properties as observed in Demir Dagh-2," Legarre added.
Oryx Petroleum owns a 65% participating and working interest in the Hawler license area.