A former chief executive of Pertamina Patra Niaga, Riva Siahaan, was sentenced to nine years in prison on Thursday, February 26, 2026, by a Jakarta court following a conviction for corruption related to the mismanagement of crude oil and refinery products at Indonesia’s state-owned energy company, PT Pertamina Persero.
The panel of judges found Siahaan guilty of engaging in corrupt practices in conjunction with Maya Kusmaya, former Director of Marketing and Trading at Pertamina Patra Niaga, and Edward Corne, former VP of Trading Operations at the same company. Kusmaya received a nine-year sentence and a fine of one billion Indonesian Rupiah, with a subsidiary of 190 days imprisonment, while Corne was sentenced to ten years imprisonment and the same fine.
According to the court, Siahaan and Kusmaya granted preferential treatment to several foreign companies. The case centers around the illegal blending of fuel products, marking one of the largest corruption scandals to hit Indonesia’s energy sector in recent years. The total financial loss to the state is estimated at $17 billion.
The prosecution had initially sought a 14-year prison sentence for Siahaan, but the court ultimately imposed a lighter penalty. The verdict followed a trial that examined the governance and oversight within the state-owned enterprise.
The court’s decision comes after a period of scrutiny surrounding corruption within Pertamina, a vital component of the Indonesian economy. The case has intensified calls for greater transparency and accountability in the management of state assets.
