GeoPark said the well was drilled 780 m north of the Jacana 3 appraisal well further down dip to a bottom-hole location below the previous lowest-known oil, where it hit oil in the Guadalupe Formation.
Drilled to a depth of 3,860 ft, IOG said good quality reservoir condition samples were collected from the field and sent to Aberdeen for further analysis.
The company is preparing for a third phase of exploration and appraisal drilling.
Tests showed a crude oil flow rate of 2,406 barrels per day, Sonatrach said in a statement.
A stabilized gas flow rate of 17 MMscf/d was reached on Aug. 7, the company said, noting the results “represents a highly commercial rate.”
The total oil in place in the Upper Portland pay has increased from 7.7 MMbbl per square mile to 22.9 MMbbl per square mile.
A sidetrack appraisal well on the Brasse discovery in the Norwegian North Sea has encountered a 25-meter (m) gross oil column and a 6-m gross gas column, Faroe Petroleum said in a news release.
Drilled to 5,475 m in 1,692 m of water, the Liza-2 well encountered more than 58 m of oil-bearing sandstone reservoirs in Upper Cretaceous formations.
Sonangol said Block 20/11 held an estimated 313 MMbbl of condensate and 2.8 trillion cubic feet of gas, Reuters reported.
Petrobras said a new well has discovered the largest net pay to date in the Libra block, with 410 m of thickness, surpassing the previous largest column of 301 m announced in March.
A true understanding of the subsurface requires integration and ingenuity.
Although the oil is not in commercial quantities, the Sri Trang-1 discovery has validated the hydrocarbon prospectivity of the Northern Kra Basin, Tap Oil said in the release.