Friedrich G. Frommann’s bunkering business apparently dates from a 1928 partnership with Machunsky Mineralöle associated with Rhenania-Ossag. After the partner’s financial difficulties, Frommann took control of Shell 5 and Shell 8 on 12 May 1932 and established his own concern. It subsequently built Seeve and continued supplying bunker fuels to German shipowners.
By 2012 Gerhard was senior managing director of Friedrich G. Frommann, with Martin and Stefan managing marine fuels; Rosanoski assumes they were his sons. The website’s 2006–2007 additions, Kösterberg and Süllberg, were chartered from Vega-Reederei Friedrich Dauber and retained that manager’s colours. Rosanoski identifies Seeve and Aue as the remaining owned oil barges.
Keep the explicit scope label independent; no alias or company identity is inferred.