 Nyora kupfuurira kweiyi ndima - Nhoroondo yeSilmet inodzokera ku1926 apo Swedish-Norwegian Eestimaa Õlikonsortsium ; , inodzorwa naMarcus Wallenberg, yakagadzwa kuvaka chirimwa chekubvisa mafuta muSillamäe. Nokuda kwekugadzirwa kweoiri ye shale, sangano racho rakavaka hovhoni yomugwagwa muna 1928. Zvisinei, nemhaka yeDzvinyiriro Huru, kugadzirwa kwakamiswa muna 1930 uye kwakatangazve bedzi muna 1936 nekambani yakarongwazve inonzi Baltic Oil Company. Ovheni yechipiri yakawedzerwa muna 1938. Chigadzirwa chikuru chaiva peturu. Pashure pokunge Soviet basa rakatanga muna 1940, chirimwa akanga nationalized maererano 30 May 1941 Moscow Agreement pakati Soviet Union uye Sweden. Germany yakapinda muSoviet Unionmuna 1941 uye zvivako zveindasitiri yacho zvakaparadzwa zvikuru nemauto eSoviet akanga achidzokera shure. Mukati mokubatwa kweGermany kwakatevera, chirimwa chacho chakadzorerwa ndokuiswa pasi pekambani inonzi Baltische Öl GmbH. Zvisinei, zvivako zvaro zvakawanda zvakaparadzwa muhondo. 