 Since the opening up of the Bintulu – Miri road in the 1970s , large @-@ scale plantations of oil palm and cocoa has been developed in rural areas of Bintulu Division . Currently , there are 57 @,@ 740 hectares ( 577 @.@ 4 km2 ( 223 sq mi ) ) of oil palm , 2 @,@ 000 hectares ( 200 km2 ( 77 sq mi ) ) of Rattan , and 815 hectares ( 8 @.@ 15 km2 ( 3 sq mi ) ) of pepper plantations . 
