ONE Gas Executive and Leadership Team

May, 2026

Leadership Overview

ONE Gas has 5 executives leading key functions including strategy, finance, operations, human resources, and information technology.

Driven by a commitment to reliable energy delivery, ONE Gas focuses on providing essential natural gas distribution services across Oklahoma, Kansas, and Texas, supporting residential, commercial, and industrial customers with a philosophy centered on safety and customer satisfaction.

Leadership Roles at ONE Gas

  • Chief Executive Officer - Robert McAnnally
  • Chief Financial Officer - Christopher Sighinolfi
  • President & Chief Operating Officer - Curtis Dinan
  • Senior Vice President and Chief Human Resources Officer - Angela Kouplen
  • Senior VP, Administration & Chief Information Officer - Mark Bender
  • Robert McAnnally - Chief Executive Officer

    Robert McAnnally, the Chief Executive Officer at ONE Gas, directs the company's overall strategic vision and operational execution. McAnnally guides the enterprise through its regulated natural gas distribution operations across Oklahoma, Kansas, and Texas, ensuring alignment with market demands and regulatory frameworks. This leadership role involves fostering a culture of safety and efficiency across all divisions, including Oklahoma Natural Gas, Kansas Gas Service, and Texas Gas Service. McAnnally's oversight extends to critical decisions impacting customer service for residential, commercial, and industrial clients. By championing innovation in energy delivery, Robert McAnnally drives the company's long-term growth and market position within the energy sector, ensuring sustainable operations and stakeholder value.

    Christopher Sighinolfi - Chief Financial Officer

    Christopher Sighinolfi, the Chief Financial Officer at ONE Gas, manages the company's financial health and strategic fiscal planning. Sighinolfi oversees all financial operations, including budgeting, forecasting, and capital allocation across the Oklahoma Natural Gas, Kansas Gas Service, and Texas Gas Service divisions. This executive is responsible for ensuring robust financial controls and reporting, vital for a regulated utility operating in multiple states. Sighinolfi's expertise supports investment strategies and drives financial performance, crucial for serving residential, commercial, and industrial customers. By optimizing financial resources, Christopher Sighinolfi directly contributes to the company's stability and its capacity for future expansion and infrastructure development, reinforcing ONE Gas's position in the energy market.

    Curtis Dinan - President & Chief Operating Officer

    Curtis Dinan, the President & Chief Operating Officer at ONE Gas, executes the company's day-to-day operational strategies and oversees service delivery. Dinan directs the integrated operations of Oklahoma Natural Gas, Kansas Gas Service, and Texas Gas Service, ensuring efficient and reliable natural gas distribution to a diverse customer base. This leadership position involves managing infrastructure maintenance, safety protocols, and emergency response across the company's service territories. Dinan's focus on operational excellence supports the delivery of essential energy services to residential, commercial, and industrial clients. By driving operational efficiency and service quality, Curtis Dinan plays a pivotal role in maintaining customer satisfaction and the company's reputation for dependable energy provision.
    Curtis Dinan

    Angela Kouplen - Senior Vice President and Chief Human Resources Officer

    Angela Kouplen, the Senior Vice President and Chief Human Resources Officer at ONE Gas, leads all human capital strategies and organizational development initiatives. Kouplen is responsible for talent acquisition, employee relations, compensation, and benefits across the company's three operating divisions: Oklahoma Natural Gas, Kansas Gas Service, and Texas Gas Service. This executive role focuses on cultivating a skilled and engaged workforce essential for delivering reliable natural gas services to residential, commercial, and industrial customers. Kouplen's strategic direction ensures that ONE Gas attracts and retains top talent, fostering a positive work environment that supports operational goals. By prioritizing employee development and well-being, Angela Kouplen strengthens the company's foundation and its ability to meet evolving market demands.

    Mark Bender - Senior VP, Administration & Chief Information Officer

    Mark Bender, the Senior VP, Administration & Chief Information Officer at ONE Gas, directs the company's administrative functions and information technology infrastructure. Bender oversees the strategic implementation and management of technology solutions that support ONE Gas's operations across Oklahoma, Kansas, and Texas, ensuring data integrity and system security. This dual role involves optimizing administrative processes to enhance efficiency and managing the technological backbone for serving residential, commercial, and industrial customers. Bender's leadership ensures that IT systems are robust, scalable, and aligned with the company's business objectives, facilitating seamless energy distribution. By integrating administrative efficiency with advanced technology, Mark Bender drives operational effectiveness and supports the company's overall strategic initiatives.
    Mark Bender

    Explore Leadership Teams in Electricity, Oil & Gas

    Frequently Asked Questions Regarding ONE Gas Top Executives and Leadership Team

    Who leads ONE Gas?
    ONE Gas is led by Robert McAnnally (Chief Executive Officer), along with executives such as Christopher Sighinolfi (Chief Financial Officer) and Curtis Dinan (President & Chief Operating Officer).
    Who is part of ONE Gas’s executive team?
    The executive team of ONE Gas includes leaders such as Robert McAnnally (Chief Executive Officer), Christopher Sighinolfi (Chief Financial Officer), Curtis Dinan (President & Chief Operating Officer) and other senior executives.
    How many executives does ONE Gas have?
    ONE Gas has 5 executives leading key business areas.
    What roles are included in ONE Gas’s leadership team?
    The leadership team of ONE Gas includes roles such as Chief Executive Officer, Chief Financial Officer, President & Chief Operating Officer, Senior Vice President and Chief Human Resources Officer, Senior VP, Administration & Chief Information Officer.