Tallgrass Executive and Leadership Team

Crystal Heter, the Chief Executive Officer at Tallgrass, directs the overarching corporate strategy and operational execution for the company's midstream energy assets. Heter's leadership focuses on driving growth through strategic acquisitions and development initiatives across North America. Overseeing all business segments, the Chief Executive Officer ensures alignment with market demands and stakeholder expectations. This executive role involves navigating complex regulatory environments and optimizing asset performance to maximize value. By fostering innovation in operational efficiency, Crystal Heter directly impacts the company's market position and financial health. Ultimately, Heter secures long-term sustainability and expansion for Tallgrass's energy infrastructure.

Matthew Sheehy, the President & Chief Executive Officer at Tallgrass, spearheads the company's strategic vision and operational management of its extensive midstream energy infrastructure. Sheehy's mandate includes driving expansion initiatives and ensuring the efficient deployment of capital across North American markets. Leading all functional areas, the President & Chief Executive Officer guarantees that operational activities directly support the company's growth objectives and commitment to reliable energy delivery. This critical position involves cultivating key industry relationships and steering the organization through dynamic market conditions. Through strategic oversight, Matthew Sheehy enhances Tallgrass's competitive advantage and market leadership. Ultimately, Sheehy solidifies the company's role as a vital energy services provider.

David Dehaemers, the President & Chief Executive Officer, Amp at Tallgrass, commands the strategic direction and operational oversight for the company's Amp segment. Dehaemers's focus centers on developing and expanding specialized midstream energy assets, ensuring robust performance and market responsiveness. Directing all activities within the Amp division, the President & Chief Executive Officer, Amp drives initiatives that enhance service offerings and operational capabilities. This leadership role requires deep expertise in energy infrastructure development and a keen understanding of market dynamics. By optimizing resource allocation and fostering strategic partnerships, David Dehaemers strengthens Tallgrass's position in key energy markets. Ultimately, Dehaemers ensures the Amp segment's contribution to the company's overall success and growth.

Gary Watkins, the Executive Vice President & Chief Financial Officer at Tallgrass, directs the company's financial strategy, capital management, and fiscal operations. Watkins's oversight extends to financial planning, risk management, and investor relations, ensuring robust financial health for Tallgrass's North American midstream assets. Leading the finance division, the Executive Vice President & Chief Financial Officer manages all aspects of budgeting, forecasting, and financial reporting to support strategic decision-making. This crucial executive function involves optimizing capital structure, securing funding for growth initiatives, and maintaining strong relationships with financial institutions. By implementing rigorous financial controls and driving fiscal discipline, Gary Watkins enhances Tallgrass's profitability and long-term economic stability. Ultimately, Watkins ensures the company's financial integrity and capacity for sustained expansion.

Allison Nelson, the Senior Vice President and Segment President, CO2 Business Development and Origination at Tallgrass, leads the strategic expansion and commercial activities for the company's CO2 business segment. Nelson's responsibilities include identifying new opportunities, forging key partnerships, and originating business development initiatives across North America. Directing all origination and business development efforts within the CO2 segment, the Senior Vice President and Segment President, CO2 Business Development and Origination ensures the growth and profitability of this critical area. This executive position requires extensive market knowledge and a proven ability to secure new commercial agreements. By cultivating strategic relationships and driving innovative origination strategies, Allison Nelson strengthens Tallgrass's market presence in the CO2 sector. Ultimately, Nelson maximizes the value and reach of the company's CO2 infrastructure and services.

Doug Johnson, the President, Crude Oil Transport at Tallgrass, directs the operational strategy and management of the company's crude oil transportation assets. Johnson's leadership focuses on ensuring the safe, reliable, and efficient movement of crude oil across Tallgrass's extensive North American network. Overseeing all aspects of crude oil logistics, the President, Crude Oil Transport guarantees that transportation services meet the highest industry standards and client demands. This executive role involves managing complex logistical operations, optimizing pipeline utilization, and ensuring compliance with all regulatory requirements. By driving operational excellence and strategic network enhancements, Doug Johnson supports Tallgrass's critical role in the energy supply chain. Ultimately, Johnson ensures the integrity and effectiveness of the company's crude oil transportation services.

Kyle Quackenbush, the President, Segment Liquids (Crude Oil & Co2) at Tallgrass, oversees the strategic direction and operational performance of the company's crude oil and CO2 liquids segments. Quackenbush's leadership focuses on maximizing the efficiency and profitability of these critical midstream assets across North America. Leading both the crude oil and CO2 liquids operations, the President, Segment Liquids (Crude Oil & Co2) ensures integrated management and synergistic growth opportunities. This executive role involves driving market strategies, managing complex infrastructure, and ensuring regulatory compliance for both segments. By optimizing asset utilization and fostering innovation in liquids transportation and handling, Kyle Quackenbush enhances Tallgrass's market leadership. Ultimately, Quackenbush ensures the reliable delivery of essential energy products and services through these key business segments.

Brian Broyles, the Senior Vice President - Chief Information Officer at Tallgrass, architects and executes the company's comprehensive information technology strategy. Broyles's responsibilities encompass overseeing all digital infrastructure, cybersecurity measures, and technology innovation to support Tallgrass's midstream operations across North America. Leading the IT department, the Senior Vice President - Chief Information Officer ensures the seamless integration of advanced technological solutions that enhance operational efficiency and data security. This pivotal role involves managing IT resources, driving digital transformation, and safeguarding critical company data against evolving threats. Through strategic technology investments, Brian Broyles empowers Tallgrass with robust digital capabilities. Ultimately, Broyles ensures that technology serves as a key enabler of the company's business objectives and operational resilience.

Brooke Vandygriff, the Senior Vice President, Capital Project Development and Chief of Staff at Tallgrass, drives the strategic planning and execution of major capital projects across the company's midstream energy portfolio. Vandygriff also serves as Chief of Staff, providing critical support to executive leadership and ensuring operational alignment throughout Tallgrass's North American operations. Overseeing project lifecycles from conception to completion, the Senior Vice President, Capital Project Development and Chief of Staff guarantees that projects meet stringent safety, environmental, and financial targets. This dual role demands exceptional project management skills and a deep understanding of corporate strategy and operational integration. By meticulously managing project development and facilitating executive coordination, Brooke Vandygriff enhances Tallgrass's capacity for growth and operational excellence. Ultimately, Vandygriff ensures the successful delivery of key infrastructure investments and supports the company's strategic initiatives.

Joey Mahmoud, the Executive Vice President & Chief People Officer at Tallgrass, leads the company's human capital strategy and organizational development initiatives. Mahmoud's purview includes talent acquisition, employee engagement, compensation and benefits, and fostering a positive corporate culture across Tallgrass's North American operations. Directing all people-related functions, the Executive Vice President & Chief People Officer ensures that Tallgrass attracts, develops, and retains top talent to support its strategic objectives. This vital executive position involves shaping the employee experience, implementing effective HR policies, and driving initiatives that promote diversity and inclusion. By cultivating a high-performance workforce and championing employee well-being, Joey Mahmoud significantly contributes to Tallgrass's operational success and long-term sustainability. Ultimately, Mahmoud ensures that the company's people are its greatest asset.