Mark Hobbs serves as Executive Vice President and Chief Financial Officer of Delek US Holdings, Inc., a leading downstream energy company focused on refining, logistics, and renewable fuels. With over 20 years of experience in the energy sector, Hobbs joined Delek in October 2018 as Vice President of Finance, where he quickly demonstrated his expertise in financial planning, analysis, and strategic initiatives. Prior to Delek, he held the role of Vice President of Financial Planning & Analysis at Sunoco LP from 2014 to 2018, overseeing budgeting, forecasting, and performance management for the company's retail and wholesale operations. Earlier in his career, Hobbs spent nearly a decade at Ernst & Young as a Senior Manager in the energy practice, advising major oil and gas clients on complex financial transactions, audits, and compliance. Promoted to CFO in February 2020, Hobbs has played a pivotal role in steering Delek through dynamic market conditions, including the COVID-19 downturn and subsequent recovery. Under his leadership, the company executed significant debt refinancing, improved liquidity, and optimized its capital structure, contributing to enhanced shareholder value and operational efficiency. Key achievements include guiding the financial aspects of strategic asset sales, such as the retail marketing business divestiture, and supporting growth initiatives like renewable diesel production expansions. His strategic oversight of treasury, tax, investor relations, and risk management has positioned Delek for sustainable long-term performance. A Certified Public Accountant, Hobbs holds a Bachelor of Science in Accounting from Texas A&M University. Known for his analytical acumen and collaborative leadership style, he remains actively involved in industry forums and continues to drive Delek's financial resilience amid evolving energy transitions.