 Shirkadahaas reer galbeedka waxaa ka mid ahaa ConnocoPhilips, Amoco, Shell, Chevron iyo Agip, waxayna hawlahoodii joojiyeen 1988 iyo 1990 iyaga oo cuskaday in ay dheceen arrimo aan wax laga qaban karin ee loo yaqaan force majeure. 