Urwego rw’Igihugu rushinzwe Mine, Peteroli na Gaz (RMB), binyuze muu Ishami ryarwo rishinzwe gusuma imitingiro no kwinyeganyeza kw’isi, rwatangaje ko umutingito ufite ubukana bwa 6,4 wumvikanye mu bice bitandukanye by’u Rwanda, utaturutse mu gihugu ahubwo waturutse muri Tanzania.