Steven Sterin

Steven M.
Sterin was the founder of G&S Energy Holdings LLC, founded in 2021, where the title held was President from 2021 to 2022.
Mr. Sterin is also the founder of G.S.
Energy LLC..
Mr. Sterin currently serves as Chief Financial Officer & Director at Tesoro Refining & Marketing Co. LLC; Independent Director at Kosmos Energy Ltd. since 2019; Chief Financial Officer, Director & VP at Tesoro Logistics GP LLC since 2014; Chief Financial Officer, Director & EVP at Western Refining Logistics GP LLC since 2017; Independent Director at Qnity Electronics, Inc. starting 2025; Chief Financial Officer at Western Refining, Inc. since 2017; and President & Chief Financial Officer at Harvest Rockies Operating LLC.
Former positions include Finance Director & Controller at Celanese Chemicals, Inc. from 2003 to 2005; CFO, Director & Vice President at QEP Midstream Partners LP; Director-Tax & Treasury at Reichhold Investments BV; President, Chief Financial Officer & Director at Andeavor Logistics LP from 2017 to 2018; Director-Tax & Treasury at Reichhold LLC 2; Director at Andeavor Logistics GP LLC from 2014 to 2018; Independent Director at DuPont de Nemours, Inc. from 2019 to 2025; Chief Financial Officer & Executive Vice President at Andeavor LLC from 2016 to 2018; Principal Accounting Officer, VP & Controller at Celanese Holdings LLC from 2005 to 2014; Chief Financial Officer & Senior Vice President at Celanese Corp.
from 2007 to 2014; Tax Consultant at Pricewaterhouse LLP; Chief Financial Officer & Vice President at QEP Midstream Partners GP LLC from 2014 to 2015; and Global Treasurer & Vice President-Finance at Reichhold LLC 2 in 2003.
Education includes undergraduate and graduate degrees from The University of Texas at Austin, both conferred in 1995.