Investigation results into the oil shortage case reveal evidence of a scheme involving deliberate delay tactics and oil hoarding. Initially, Energy Business Department officials have filed complaints against six refineries nationwide. No evidence has been found linking any politicians to the case.
On 19 May 2026, reports stated that yesterday (18 May) at the Royal Thai Police Headquarters, Pol. Lt. Gen. Ruttaphol Nawarat, Minister of Justice, Pol. Gen. Thatchai Pitanilabutr, Deputy Police Chief and Director of the Fuel Crime Suppression Center, the Ministry of Energy's Mr. Eknat Promphan, Pol. Lt. Col. Yutthana Praedam, Director-General of the Department of Special Investigation (DSI), along with officials from the Excise Department, Energy Business Department, and Department of Internal Trade, jointly announced the results of an investigation and legal actions against certain Section 7 oil traders who exploited the opportunity to speculate on continuously rising oil prices.
Evidence was found of a scheme involving deliberate delay tactics and oil hoarding. This caused oil shortages during the crisis period. All cases remain under investigation. On the same day, Energy Business Department officials will file complaints against six refineries nationwide.
Meanwhile, the government has established a working group to consider related offenses. So far, there is no evidence of foundational crimes such as money laundering, nor any involvement of politicians.