Santos Executive and Leadership Team

July, 2026

Leadership Overview

Santos has 7 executives leading key functions including strategy, finance, operations, and revenue.

Driven by a commitment to sustainable energy, Santos focuses on delivering essential energy solutions while prioritizing environmental responsibility and community engagement.

Leadership Roles at Santos

  • Managing Director & Chief Executive Officer - Kevin Gallagher
  • Managing Director & Chief Executive Officer - Ross Adler
  • Chief Financial Officer - Lachlan Harris
  • Chief Operating Officer, & Png Upstream (Australia) - Brett Darley
  • Permit Coordinator and Chief Revenue Officer - Dumal Yuke
  • Chief Revenue Officer, Kumul Marine Terminal - George Chimi
  • Executive VP, Marketing & Trading - Philip Byrne
  • Kevin Gallagher - Managing Director & Chief Executive Officer

    Kevin Gallagher, the Managing Director & Chief Executive Officer at Santos, directs the company's overall strategic vision and operational execution. Gallagher oversees the integration of all business units, ensuring alignment with long-term growth objectives and shareholder value creation. This leadership position involves steering Santos through the dynamic energy landscape, focusing on efficient resource development and sustainable practices across its Australian operations. Gallagher's mandate includes driving innovation in exploration and production, enhancing operational efficiencies, and maintaining robust stakeholder relationships. The Chief Executive Officer's responsibilities extend to championing the company's commitment to safety, environmental performance, and community partnerships, particularly within the onshore oil and gas sector. Kevin Gallagher ensures the company capitalizes on opportunities in the evolving energy market, solidifying Santos' position as a key energy provider.

    Ross Adler - Managing Director & Chief Executive Officer

    Ross Adler, the Managing Director & Chief Executive Officer at Santos, guides the company's strategic direction and operational oversight. Adler is responsible for the comprehensive management of Santos' business, focusing on maximizing shareholder returns and ensuring sustainable energy production. This executive role involves leading all facets of the company's operations, from exploration and development to production and marketing of oil and gas resources. Adler's leadership emphasizes operational excellence, risk management, and fostering a culture of safety and environmental stewardship. The Chief Executive Officer's purview includes navigating regulatory environments and strengthening relationships with key stakeholders across the energy sector. Ross Adler drives the company's commitment to delivering reliable energy solutions while pursuing strategic growth initiatives.

    Lachlan Harris - Chief Financial Officer

    Lachlan Harris, the Chief Financial Officer at Santos, manages the company's financial strategy and fiscal operations. Harris oversees all aspects of financial planning, reporting, and capital allocation, ensuring the company's financial health and stability. This critical role involves managing investor relations, securing financing for projects, and optimizing the company's capital structure to support growth initiatives. The Chief Financial Officer's responsibilities include rigorous financial analysis, risk assessment, and implementing robust internal controls to safeguard company assets. Lachlan Harris plays a key part in evaluating investment opportunities and driving financial performance across Santos' onshore oil and gas assets. Harris ensures compliance with financial regulations and provides strategic financial guidance to the executive team.
    Lachlan Harris

    Brett Darley - Chief Operating Officer, & Png Upstream (Australia)

    Brett Darley, the Chief Operating Officer, & Png Upstream (Australia) at Santos, directs the operational execution of upstream activities within Australia. Darley oversees the day-to-day management of exploration, development, and production operations, ensuring efficiency, safety, and environmental compliance. This leadership position involves managing complex projects, optimizing resource extraction, and maintaining high standards of operational performance across all Australian assets. The Chief Operating Officer's responsibilities include leading field operations, managing supply chains, and implementing technological advancements to enhance productivity. Brett Darley ensures that the upstream operations in PNG and Australia meet production targets and contribute effectively to the company's overall business strategy. Darley's focus is on driving operational excellence and sustainable resource management.
    Brett Darley

    Dumal Yuke - Permit Coordinator and Chief Revenue Officer

    Dumal Yuke, the Permit Coordinator and Chief Revenue Officer at Santos, drives revenue generation and manages critical permitting processes. Yuke oversees strategies to maximize income streams from the company's energy assets, focusing on market opportunities and sales performance. This dual role involves ensuring efficient acquisition and management of necessary permits for operational activities, thereby facilitating smooth project execution. The Chief Revenue Officer's responsibilities include developing and implementing sales plans, managing customer relationships, and identifying new revenue streams within the energy sector. Dumal Yuke ensures that operational permits are secured in a timely manner, directly supporting the company's revenue-generating activities and overall business objectives. Yuke's leadership contributes to both the financial success and the operational continuity of Santos.

    George Chimi - Chief Revenue Officer, Kumul Marine Terminal

    George Chimi, the Chief Revenue Officer, Kumul Marine Terminal at Santos, spearheads revenue generation specifically for the Kumul Marine Terminal operations. Chimi is responsible for developing and executing strategies to maximize the terminal's income, focusing on optimizing throughput, service offerings, and market positioning. This role involves managing commercial agreements, identifying new business opportunities, and ensuring the terminal meets its financial targets. The Chief Revenue Officer's purview includes overseeing sales, marketing, and business development efforts related to the terminal's services. George Chimi works to enhance the terminal's profitability and its contribution to Santos' overall revenue streams. Chimi's leadership ensures the Kumul Marine Terminal operates efficiently and effectively, driving value for the company.

    Philip Byrne - Executive VP, Marketing & Trading

    Philip Byrne, the Executive VP, Marketing & Trading at Santos, leads the company's marketing and trading functions for its energy products. Byrne is responsible for developing and executing strategies to optimize the sale and trading of oil and gas commodities, ensuring competitive market positioning and maximum revenue realization. This executive role involves managing market analysis, identifying trading opportunities, and overseeing the logistics of product delivery. The Executive VP's responsibilities include building and maintaining strong relationships with customers and trading partners across the energy sector. Philip Byrne drives the commercial success of Santos' products by effectively navigating global energy markets and implementing robust trading practices. Byrne ensures the company's marketing efforts align with production capabilities and strategic objectives.

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    Frequently Asked Questions Regarding Santos Top Executives and Leadership Team

    Who leads Santos?
    Santos is led by Kevin Gallagher (Managing Director & Chief Executive Officer), along with executives such as Ross Adler (Managing Director & Chief Executive Officer) and Lachlan Harris (Chief Financial Officer).
    Who is part of Santos’s executive team?
    The executive team of Santos includes leaders such as Kevin Gallagher (Managing Director & Chief Executive Officer), Ross Adler (Managing Director & Chief Executive Officer), Lachlan Harris (Chief Financial Officer) and other senior executives.
    How many executives does Santos have?
    Santos has 7 executives leading key business areas.
    What roles are included in Santos’s leadership team?
    The leadership team of Santos includes roles such as Managing Director & Chief Executive Officer, Managing Director & Chief Executive Officer, Chief Financial Officer, Chief Operating Officer, & Png Upstream (Australia), Permit Coordinator and Chief Revenue Officer.