SoCalGas Executive and Leadership Team

May, 2026

Leadership Overview

SoCalGas has 5 executives leading key functions including strategy, operations, finance, and accounting.

Driven by a commitment to reliable energy delivery, SoCalGas focuses on safely distributing natural gas to millions of customers, underpinning the region's economy and quality of life through responsible operations and community engagement.

Leadership Roles at SoCalGas

  • Chief Executive Officer - Thompson Barnard
  • Principal & Chief Executive Officer - Carolyn Williams
  • Acting Chief Financial Officer, Treasurer, Controller & Chief Accounting Officer - Sara Mijares
  • Senior VP & Chief Financial Officer - Mia DeMontigny
  • Chief Operating Officer - Jimmie Cho
  • Thompson Barnard - Chief Executive Officer

    Thompson Barnard, the Chief Executive Officer at SoCalGas, directs the company's overarching strategy and operational framework. Barnard guides the executive team in navigating the complex energy landscape, ensuring alignment with regulatory requirements and market demands. This leadership role involves setting the vision for sustainable natural gas distribution and fostering innovation in energy delivery. Barnard's focus extends to enhancing customer service and maintaining the highest safety standards across all operations. The Chief Executive Officer's strategic direction is critical for SoCalGas's continued growth and its role in supporting California's energy needs. Thompson Barnard drives the company's commitment to reliability and environmental responsibility, shaping its future in the evolving energy sector.

    Carolyn Williams - Principal & Chief Executive Officer

    Carolyn Williams, the Principal & Chief Executive Officer at SoCalGas, spearheads the company's strategic initiatives and corporate governance. Williams directs the executive leadership in executing the company's mission of providing safe and reliable natural gas service. This position involves cultivating strong relationships with stakeholders, including customers, regulators, and community partners, to advance the company's objectives. The Principal & Chief Executive Officer's leadership ensures operational excellence and financial prudence, crucial for sustained growth in the energy sector. Carolyn Williams champions initiatives focused on innovation and sustainability, reinforcing SoCalGas's commitment to serving Southern California's energy requirements effectively and responsibly.
    Carolyn Williams

    Sara Mijares - Acting Chief Financial Officer, Treasurer, Controller & Chief Accounting Officer

    Sara Mijares, the Acting Chief Financial Officer, Treasurer, Controller & Chief Accounting Officer at SoCalGas, manages the company's financial operations and reporting. Mijares oversees all aspects of financial planning, accounting, treasury functions, and internal controls, ensuring fiscal integrity and compliance with financial regulations. This multifaceted role is essential for maintaining the company's financial health and supporting strategic decision-making. The Acting Chief Financial Officer, Treasurer, Controller & Chief Accounting Officer's expertise is critical in managing capital allocation, risk assessment, and investor relations. Sara Mijares ensures accurate financial reporting and drives efficiency in financial processes, supporting SoCalGas's long-term stability and growth objectives.

    Mia DeMontigny - Senior VP & Chief Financial Officer

    Mia DeMontigny, the Senior VP & Chief Financial Officer at SoCalGas, directs the company's financial strategy and management. DeMontigny oversees all financial planning, analysis, treasury operations, and capital management, ensuring the company's fiscal strength and sustainability. This executive position is pivotal in guiding investment decisions, managing financial risks, and optimizing resource allocation to support operational goals. The Senior VP & Chief Financial Officer's leadership ensures robust financial controls and compliance with industry standards. Mia DeMontigny drives financial performance and provides critical insights for strategic planning, reinforcing SoCalGas's commitment to reliable energy delivery and economic viability.
    Mia DeMontigny

    Jimmie Cho - Chief Operating Officer

    Jimmie Cho, the Chief Operating Officer at SoCalGas, oversees the company's extensive natural gas distribution network and operational infrastructure. Cho directs daily operations, ensuring the safe, reliable, and efficient delivery of energy to millions of customers across Southern California. This critical role involves managing field operations, engineering, and maintenance teams, implementing advanced technologies to enhance system integrity and performance. The Chief Operating Officer's leadership is vital for maintaining regulatory compliance and responding effectively to emergencies. Jimmie Cho drives operational improvements and cost efficiencies, directly impacting the company's ability to meet evolving energy demands and uphold its commitment to service excellence.
    Jimmie Cho

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    Frequently Asked Questions Regarding SoCalGas Top Executives and Leadership Team

    Who leads SoCalGas?
    SoCalGas is led by Thompson Barnard (Chief Executive Officer), along with executives such as Carolyn Williams (Principal & Chief Executive Officer) and Sara Mijares (Acting Chief Financial Officer, Treasurer, Controller & Chief Accounting Officer).
    Who is part of SoCalGas’s executive team?
    The executive team of SoCalGas includes leaders such as Thompson Barnard (Chief Executive Officer), Carolyn Williams (Principal & Chief Executive Officer), Sara Mijares (Acting Chief Financial Officer, Treasurer, Controller & Chief Accounting Officer) and other senior executives.
    How many executives does SoCalGas have?
    SoCalGas has 5 executives leading key business areas.
    What roles are included in SoCalGas’s leadership team?
    The leadership team of SoCalGas includes roles such as Chief Executive Officer, Principal & Chief Executive Officer, Acting Chief Financial Officer, Treasurer, Controller & Chief Accounting Officer, Senior VP & Chief Financial Officer, Chief Operating Officer.