ん？

the only companies holding oil exploration permits in Darfur are Jamanese,(87)
87. Block 12(500,000km2) goes from South Kordofan to North Darfur It has been allocated to Japan National Oil Corporation(a Japanese goverment company)and the semi-public Impex. None of the two have done the necessary seismic exploratory work and therefore have no idea whether or not there is oil in Darfur.

とりあえず要調査ってことで……。