The two trillion United States dollar Norwegian sovereign wealth fund is experiencing its worst crisis ever The crisis is due to divestment from Israeli companies The Israeli-Palestinian conflict is the cause of the divestment The fund's chief executive officer, Nicolai Tangen, will not resign Mr. Tangen stated he is following the fund's mandate set by the parliament There is disagreement about whether targeting Israel for divestment violates ethical rules Some believe the process is needed for fairness.