Masirah Oil, a subsidiary of Singapore’s Rex International Holding, has successfully completed the drilling of Yumna-1 appraisal well in Block-50 off Oman’s eastern coast.

The well was spudded on 26 December and the appraisal “came in as prognosed and confirms the updated reservoir model," Masirah said.

“The Yumna-1 well has tested at a production rate of 11,843 stock tank barrels of oil per day through a 1-inch choke, with a crude oil gravity of 42 degrees API. The Yumna Field is being further appraised with an extended early production test,” a company statement read.

Rex International, which has a majority interest in Masirah, said that the initial appraisal results from the field are encouraging and would lead to increased activities in the offshore block.

“We are very happy with the successful results from the Yumna-1 well and are pleased to play a part in opening up a new frontier offshore, east of Oman. We expect the high level of activity to continue as we move forward in the block,” Dan Brostrom, chairman of Rex International, said.

Masirah said that “further data evaluation and testing will be done” on the appraisal well and the findings will be released once the evaluation process is completed.

The Yumna oilfield, earlier known as GA South Field, is home to the GA South-1 discovery, which was made in 2014.

Masirah holds a 100% stake in Oman’s Block-50 concession.

Rex International holds an effective interest of 86.37% in Masirah through its wholly owned subsidiary Rex Oman.

The other stakeholders in Masirah Oil are Schroder & Co Banque on 7.03%, Trace Atlantic Oil on 4.66%, Petroci, the National Oil Company of the Ivory Coast, on 1.83%, and a member of the Masirah management on 0.10%.

Exploration

Singapore player completes key appraisal offshore well in Oman