ONE Gas Executive and Leadership Team

Robert McAnnally, the Chief Executive Officer at ONE Gas, directs the overarching corporate strategy for the regulated natural gas distribution utility. McAnnally oversees the alignment of the three primary divisions—Oklahoma Natural Gas, Kansas Gas Service, and Texas Gas Service—to ensure consistent service delivery across the United States. By managing relationships with the Board and external stakeholders, the Chief Executive Officer drives long-term value creation and operational safety standards. Robert McAnnally prioritizes the expansion of the customer base, encompassing residential, commercial, and industrial sectors. This leadership role involves navigating complex regulatory environments to maintain financial health and infrastructure integrity. Through the implementation of rigorous safety protocols and capital investment programs, the Chief Executive Officer secures the company's market position. Ultimately, McAnnally fosters a culture of operational excellence that supports the reliable distribution of natural gas to millions of customers throughout the regional service footprint.

Christopher Sighinolfi, the Senior Vice President & Chief Financial Officer at ONE Gas, manages the financial health and capital allocation strategies for the regulated utility. Sighinolfi oversees treasury operations, financial planning, and investor relations to ensure the company meets its fiscal objectives across the Oklahoma, Kansas, and Texas markets. By directing the budgeting process for infrastructure maintenance and expansion, the Senior Vice President & Chief Financial Officer supports the reliable delivery of natural gas to residential and industrial customers. Christopher Sighinolfi monitors regulatory financial compliance and risk management protocols to protect shareholder interests. This leadership role involves providing the Board with accurate financial forecasting and analysis to guide strategic decision-making. Through the optimization of the capital structure and the management of debt portfolios, the Senior Vice President & Chief Financial Officer secures the necessary funding for long-term growth initiatives, ensuring the company remains a stable, high-performing entity within the energy sector.

Curtis Dinan, the President & Chief Operating Officer at ONE Gas, executes the daily operational functions of the natural gas distribution network. Dinan oversees the technical performance and maintenance of infrastructure across the Oklahoma, Kansas, and Texas service territories. By managing the logistics of gas delivery to wholesale, public authority, and retail customers, the President & Chief Operating Officer ensures consistent supply chain reliability. Curtis Dinan drives efficiency improvements in field operations and system monitoring to minimize service disruptions. This leadership role involves coordinating with engineering and safety teams to modernize distribution assets and meet rigorous industry standards. Through the oversight of regional operational performance, the President & Chief Operating Officer maintains the physical integrity of the utility network. Ultimately, Dinan supports the company's mission by ensuring that every residential, commercial, and industrial customer receives safe, uninterrupted natural gas service throughout the entire regional operational footprint.

Angela Kouplen, the Senior Vice President and Chief Human Resources Officer at ONE Gas, architects the human capital strategy necessary to support a large-scale utility workforce. Kouplen manages talent acquisition, leadership development, and organizational culture initiatives across the Oklahoma, Kansas, and Texas divisions. By aligning workforce capabilities with the technical demands of natural gas distribution, the Senior Vice President and Chief Human Resources Officer ensures the company maintains a highly skilled team capable of managing critical infrastructure. Angela Kouplen drives diversity, equity, and inclusion programs that strengthen the organizational fabric and improve employee retention. This leadership role involves collaborating with other C-suite executives to integrate human resource metrics into broader business performance goals. Through the design of competitive compensation and benefits structures, the Senior Vice President and Chief Human Resources Officer supports the operational stability of the entire utility enterprise while fostering a safe, productive work environment for all personnel.