Bryan Shinn

Michael L. Winkler

EVP & COO

Donald A. Merril

EVP & CFO

Alan Schultz

EVP And CFO

Derek Ussery

President - Oil & Gas

Stacy Russell

Executive Vice President, General Counsel And Corporate Secretary At U.s. Silica

Mohammed Shareef

Vice President And Chief Information Officer

Grant Nintzel Pe

Director Of Engineering

Jeffrey McCurdy

Ba/qa Manager, Information Technology

John Hayes

Sr. IT Manager, Applications

Geoff Boucher

Vice President, Global Sales

Scott Conroy

Director Of Operations

J. Mike Stice

Director