Pedzisa mutsara unotevera: Mavharuvhu ekuvhara anonyanya kusanganiswa neindasitiri yepetroleum kunyangwe mamwe maindasitiri angangodawo rudzi urwu rwechirongwa chekudzivirira. ESD mavharuvhu anodikanwa nomutemo pachishandiso chipi nechipi chakaiswa papuratifomu yekuchera pamhenderekedzo yegungwa kudzivirira zviitiko zvinoparadza zvakadai se
BP Horizon kuputika muGulf of Mexico muna 2010.