The stabilization process is a form of partial distillation which sweetens "sour" crude oil (removes the hydrogen sulfide) and reduces vapor pressure, thereby making the crude oil safe for shipment in tankers. Stabilizers maximize production of valuable hydrocarbon liquids, while making the liquids safe for storage and transport, as well as reduce the atmospheric emissions of volatile hydrocarbons. Stabilizer plants are used to reduce the volatility of stored crude oil and condensate.

Soon after the attack U.S. Secretary of State Mike Pompeo went into full 'blame Iran' mode:

Secretary Pompeo @SecPompeo - 21:59 UTC · Sep 14, 2019
Tehran is behind nearly 100 attacks on Saudi Arabia while Rouhani and Zarif pretend to engage in diplomacy. Amid all the calls for de-escalation, Iran has now launched an unprecedented attack on the world's energy supply. There is no evidence the attacks came from Yemen.
We call on all nations to publicly and unequivocally condemn Iran's attacks. The United States will work with our partners and allies to ensure that energy markets remain well supplied and Iran is held accountable for its aggression