The Department of Petroleum Resources (DPR) on Thursday announced the extension by one week, the deadline to register to bid for Nigeria’s marginal oil fields, which will now close on June 21.

The DPR launched the first marginal field award round in nearly 20 years on June 1.

READ: Department of Petroleum Resources (DPR) – Expression of Interest/Registration to Bid for 57 Marginal Oil Fields – 2020

Applicants initially had until June 14 to register, but the timeline has been moved to June 21. The DPR, the nation’s petroleum regulator, did not give a reason for the extension, a report by Reuters said.

The marginal oilfields comprise 57 fields located on land, swamp and shallow offshore terrains.