How it started
History
Wingas was established in 1993 by BASF subsidiary Wintershall and Gazprom. Since 25 October 2007, Wintershall owned 50% plus one share, while Gazprom's stock is 50% less one share. In December 2013, Wintershall and Gazprom agreed an assets swap which made Wingas a wholly owned subsidiary of Gazprom. BASF and Gazprom completed the swap of assets by September 30, 2015.
From Wikipedia’s article on SEFE Energy, shared under CC BY-SA 4.0.2