Delek US Executive and Leadership Team

July, 2026

Leadership Overview

Delek US has 5 executives leading key functions including strategy, finance, human resources, and refining operations.

Driven by operational excellence, Delek US is dedicated to powering the nation's energy needs through advanced refining and sustainable fuel solutions, impacting supply chains across the United States.

Leadership Roles at Delek US

  • President & Chief Executive Officer - Avigal Soreq
  • Chief Financial Officer - Mark Hobbs
  • Executive Vice President and President, Refining & Renewables - Joseph Israel
  • Executive Vice President & Chief Human Resources Officer - Sam Eljaouhari
  • Executive VP, Human Resources & Chief Human Resource Officer - Jared Serff
  • Avigal Soreq - President & Chief Executive Officer

    Avigal Soreq, the President & Chief Executive Officer at Delek US, directs the overarching corporate strategy and operational execution for the downstream energy company. Overseeing all business segments, Soreq ensures the integration of refining, asphalt production, renewable fuels, and logistics operations to maximize efficiency and market responsiveness. This leadership role involves guiding the company's expansion into renewable energy sources while maintaining robust traditional fuel supply chains. By fostering innovation and strategic partnerships, Avigal Soreq drives the company's financial performance and long-term growth objectives. The Chief Executive Officer's mandate includes navigating complex market dynamics and regulatory landscapes to secure Delek US's position as a leading energy provider across the United States.
    Avigal Soreq

    Mark Hobbs - Chief Financial Officer

    Mark Hobbs, the Chief Financial Officer at Delek US, manages all financial operations and strategic financial planning for the integrated downstream energy company. Overseeing treasury, accounting, and investor relations, Hobbs ensures robust financial health and transparent reporting across all business units, including petroleum refining, asphalt production, and renewable fuels. This critical role involves securing capital for expansion projects and optimizing the company's balance sheet to support its extensive midstream infrastructure assets. By analyzing market trends and financial performance, Mark Hobbs provides essential insights to guide executive decision-making and drive shareholder value. The Chief Financial Officer's responsibilities extend to managing risk and ensuring compliance with financial regulations, supporting Delek US's mission to maintain stable energy distribution.

    Joseph Israel - Executive Vice President and President, Refining & Renewables

    Joseph Israel, the Executive Vice President and President, Refining & Renewables at Delek US, spearheads the strategic direction and operational oversight of the company's core refining and emerging renewable fuels divisions. Overseeing refinery operations and the development of sustainable energy solutions, Israel ensures efficient processing of crude oil and production of high-quality fuels and asphalt. This executive position is pivotal in driving Delek US's transition towards a more sustainable energy portfolio while maintaining the integrity of its existing supply chains. By optimizing production processes and investing in new technologies, Joseph Israel enhances the company's competitive edge and market leadership. The President of Refining & Renewables' focus includes ensuring safety, environmental compliance, and maximizing profitability across these critical business segments.
    Joseph Israel

    Sam Eljaouhari - Executive Vice President & Chief Human Resources Officer

    Sam Eljaouhari, the Executive Vice President & Chief Human Resources Officer at Delek US, leads all human capital strategies and organizational development initiatives for the energy company. Overseeing talent acquisition, employee relations, and compensation programs, Eljaouhari ensures a skilled and motivated workforce across refining, asphalt, and logistics operations. This position is vital for cultivating a strong corporate culture that supports Delek US's commitment to safety and operational excellence. By developing comprehensive HR policies and programs, Sam Eljaouhari enhances employee engagement and retention, directly impacting the company's ability to execute its complex energy distribution and production strategies. The Chief Human Resources Officer's focus includes fostering diversity and inclusion, aligning human resources with the company's evolving business objectives.

    Jared Serff - Executive VP, Human Resources & Chief Human Resource Officer

    Jared Serff, the Executive VP, Human Resources & Chief Human Resource Officer at Delek US, directs strategic human resources functions supporting the company's extensive downstream energy operations. Overseeing workforce planning, talent management, and employee development, Serff ensures Delek US maintains a high-performing team across its refining, asphalt, and logistics segments. This leadership capacity is crucial for aligning HR initiatives with the company's growth in renewable fuels and its robust midstream infrastructure. By implementing effective HR policies and fostering a positive work environment, Jared Serff contributes significantly to operational continuity and employee satisfaction. The Chief Human Resource Officer's role involves championing employee well-being and ensuring compliance with labor laws, reinforcing Delek US's commitment to its people and its mission.
    Jared Serff

    Frequently Asked Questions Regarding Delek US Top Executives and Leadership Team

    Who leads Delek US?
    Delek US is led by Avigal Soreq (President & Chief Executive Officer), along with executives such as Mark Hobbs (Chief Financial Officer) and Joseph Israel (Executive Vice President and President, Refining & Renewables).
    Who is part of Delek US’s executive team?
    The executive team of Delek US includes leaders such as Avigal Soreq (President & Chief Executive Officer), Mark Hobbs (Chief Financial Officer), Joseph Israel (Executive Vice President and President, Refining & Renewables) and other senior executives.
    How many executives does Delek US have?
    Delek US has 5 executives leading key business areas.
    What roles are included in Delek US’s leadership team?
    The leadership team of Delek US includes roles such as President & Chief Executive Officer, Chief Financial Officer, Executive Vice President and President, Refining & Renewables, Executive Vice President & Chief Human Resources Officer, Executive VP, Human Resources & Chief Human Resource Officer.