The central emblem is an O for Onstad. NJK associates it with Nils, while the FOTW account names Haakon. The flag was shared across the Swedish companies and apparently the Norwegian operation. Sources differ over blue edging around the hexagonal panel: all Kungsoil sources show it, but some Onstad sources omit it. The cap badge places the break in the blue band and the panel nearer the hoist. K266 has equal white and blue bands; other sources make the blue band narrower, perhaps only slightly. Rosanoski leaves open whether such differences intentionally distinguished the companies.
Keep the explicit scope label independent; no alias or company identity is inferred.