The May 17-18 protest action led by the United Negros Drivers and Operators Center (UNDOC) was launched to dramatize opposition to the extraordinary discrepancy between the prices of petroleum products in Negros Occidental and other areas.
Pinamunuan ng United Negros Drivers and Operators Center (UNDOC) ang kilos-protesta na inilunsad nila para mariing ipadama ang kanilang reklamo sa di pangkaraniwang pagkakaiba sa presyo ng mga produktong petrolyo sa Negros Occidental.