According to the Public Ministry of São Paulo, the target group of Operation Fluxo Oculto adulterated fuels with solvent
Gaeco (Special Action Group to Combat Organized Crime) and the Federal Revenue Service launched operation Fluxo Oculto, an offshoot of Carbono Oculto, this Thursday (May 28, 2026). The action also includes: ANP (National Agency for Petroleum, Natural Gas and Biofuels), São Paulo State Finance Department, State Attorney General’s Office, Military Police and Civil Police.
55 search and seizure warrants are being executed in SP, RJ, MG and PR.
According to , the objective of the new operation is “advance in dismantling the fraud, evasion and money laundering scheme in the fuel sector by seizing evidence of illicit activities and identifying other possible participants. The main focuses in this operation are 6 more fintechs discovered and the adulteration of fuel using naphtha (solvent)”.
“After the launch of the Carbono Oculto operation, 6 more fintechs were discovered that acted as parallel banks for the criminal organization. They made up a powerful financial nucleus, being used for internal financial compensations between various distributors and gas stations, financial compensations between companies and investment funds managed by the criminal organization, payments to employees and payments for expenses and personal investments of the main operators”reported the MPSP.
The MPSP stated that it denounced the organization involved with the diversion of petrochemical naphtha to terminals and gas stations. “Those accused used relatives, people in socially vulnerable situations and even prisoners to form legal entities that allegedly acquired solvents, in practice diverted to Greater São Paulo”these.
According to the investigation, the money obtained from the scheme was sent to investment funds, which are some of the targets of this Thursday’s action (May 28), in addition to two resource administrators and two managers. The 4 funds investigated have an estimated assets of R$205 million.