The Chief Financial Officer of HF Sinclair Corporation, Atanas Atanasov, has voluntarily stepped away from his position, according to a company filing released Friday. This development follows closely behind a similar move by the company’s top executive Tim Go just one week earlier.
The oil refining company’s stock dropped 4% during pre-market trading following the announcement.
According to the filing, HF Sinclair launched an internal investigation into its disclosure practices last week.
The company revealed Friday that this internal examination started on January 26, triggered when Atanasov expressed worries that certain decisions made by Go had established a negative “tone at the top” regarding the company’s 2025 disclosure procedures.
As the investigation progressed, the board of directors developed their own concerns about specific decisions made by Atanasov, which led to his decision to request voluntary leave.
HF Sinclair announced it has wrapped up the internal investigation and determined that the executives’ actions did not establish a negative “tone at the top” concerning the 2025 disclosure procedures.
The oil company also stated that its disclosure controls and procedures continue to function properly.
Vivek Garg has been appointed to serve as temporary CFO, while Franklin Myers is currently filling the interim CEO role.
HF Sinclair indicated it plans to work out mutually acceptable departure agreements with both Go and Atanasov.
