Delek US Executive and Leadership Team

May, 2026

Leadership Overview

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

Driven by operational excellence, Delek US is dedicated to providing essential petroleum products and logistics services, fueling transportation and industrial markets with a commitment to efficiency and market responsiveness.

Leadership Roles at Delek US

  • President & Chief Executive Officer - Avigal Soreq
  • Executive Vice President and 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 company's overarching strategy and operational execution. This leadership role involves guiding the integrated energy company's direction in petroleum refining and transportation services, ensuring alignment with market demands and shareholder value. Soreq oversees the strategic deployment of capital and resources across the Refining and Logistics segments, driving performance and innovation. The Chief Executive Officer's mandate includes fostering a culture of safety and efficiency within the organization, crucial for the production of gasoline, diesel, jet fuels, and other petroleum-based products. Avigal Soreq's vision shapes the company's approach to market challenges and opportunities, particularly in the dynamic energy sector. This executive guides the company's expansion and operational improvements, ensuring Delek US maintains its competitive edge in delivering vital energy solutions.
    Avigal Soreq

    Mark Hobbs - Executive Vice President and Chief Financial Officer

    Mark Hobbs, the Executive Vice President and Chief Financial Officer at Delek US, manages the company's financial operations and strategic fiscal planning. This critical role involves overseeing all aspects of financial reporting, capital allocation, and investor relations, ensuring the fiscal health of the integrated energy company. Hobbs directs the financial strategies that support Delek US's refining and logistics operations, including the management of its two refineries in Texas and Arkansas. The Chief Financial Officer's responsibilities extend to optimizing financial performance, managing risk, and securing funding for operational needs and growth initiatives. Mark Hobbs plays a key part in evaluating investment opportunities and ensuring compliance with financial regulations. This executive's financial acumen is vital for sustaining the company's market position and driving profitability in the production and distribution of petroleum products.

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

    Joseph Israel, the Executive Vice President and President, Refining & Renewables at Delek US, spearheads the company's core refining operations and its emerging renewable energy initiatives. This executive role involves direct oversight of the two refineries located in Tyler, Texas, and El Dorado, Arkansas, ensuring efficient production of gasoline, diesel, jet fuels, and other petroleum products. Israel drives strategies to optimize refinery performance, enhance product quality, and maintain stringent safety standards. The President of Refining & Renewables also guides the integration and development of renewable energy projects, aligning with the company's long-term vision. Joseph Israel's leadership is crucial for maximizing output from existing assets while exploring new avenues for sustainable energy solutions. This executive's focus ensures Delek US remains a key player in both traditional and evolving energy markets.
    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 the company's human capital strategy and organizational development. This executive role focuses on cultivating a skilled and engaged workforce essential for the company's refining and logistics operations. Eljaouhari directs initiatives related to talent acquisition, employee relations, compensation, and benefits, ensuring Delek US attracts and retains top talent. The Chief Human Resources Officer's purview includes fostering a positive and productive work environment across all operational sites, including the refineries in Texas and Arkansas. Sam Eljaouhari's strategic approach to human resources supports the company's mission of delivering petroleum products and transportation services efficiently. This leadership position is integral to maintaining operational continuity and driving employee performance.

    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 the comprehensive human resources functions supporting the company's integrated energy operations. This executive role encompasses talent management, employee engagement, and the development of HR policies that align with Delek US's strategic objectives in refining and logistics. Serff oversees initiatives aimed at fostering a robust organizational culture and ensuring a safe, productive work environment across all company sites. The Chief Human Resource Officer's responsibilities include managing employee relations, compensation structures, and workforce planning to support the production and distribution of petroleum products. Jared Serff's leadership ensures that Delek US has the necessary human capital to execute its business plan and adapt to industry changes. This executive's contribution is vital for maintaining operational excellence and employee satisfaction.
    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 (Executive Vice President and 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 (Executive Vice President and 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, Executive Vice President and 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.