Statoil selected Wingårdh's striking slanted, elliptical tower over rival proposals by three Norwegian firms - Helen & Hard, Snøhetta and Space Group (which teamed up with Foster + Partners). Dutch architects OMA were also in the running.
Wingårdh's proposal, named "E = mc²", won over its rivals on largely practical considerations with Statoil praising its "highly area-efficient building shape".
"In our view this project provides us with the best land utilization, best economy and the best architectural and functional solutions," Arne Sigve Nylund, executive vice president of development, and location manager in Stavanger said.
A closer look at the new design: