 Point Tupper was also the site of several failed industrial policies, when the Gulf Oil refinery was closed and mothballed in the late 1970s and later dismantled, although its storage tanks remain to this day, now operated by NuStar Energy.Another more infamous folly involved a heavy water manufacturing plant built in the 1970s following the 1973 oil crisis by Atomic Energy of Canada Limited (AECL), but quickly closed and later mothballed and dismantled.A gypsum drywall manufacturing plant also closed after experiencing difficult economic conditions.