Tesoro Corporation Employee Directory
Oil and GasTexas, United States1001-5000 Employees
Tesoro Corporation has about 2K employees across 3 continents, most of them in North America. By country, the largest groups are United States Of America (95%) and Italy (1%). Civil Engineering & Construction and Administrative make up 34% of the profiles with a known department. Tesoro Corporation's workforce spans 35 departments. Tesoro Corporation's workforce fell 15% between July 2025 and July 2026.