Tullow Oil has suspended production from its Jubilee field to the Ghana gas plant at Atuabo due to technical issues.
The company, which has major interests in Africa, said experts were working to fix the fault with gas compression systems on the FPSO Kwame Nkrumah. It is not expected to resume production before mid-August.
Oil production is currently held at 65,000 barrels per day. Tullow said it will review its 2015 production forecast for Jubilee and provide an update on progress at its half yearly results on July 29.