Tallgrass Executive and Leadership Team

Crystal Heter, the Chief Executive Officer at Tallgrass, directs the overarching strategic vision for the organization. Heter manages the acquisition and development of midstream energy assets, ensuring alignment with long-term corporate objectives. By overseeing the integration of complex infrastructure projects, the Chief Executive Officer maintains operational efficiency across the North American portfolio. This leadership role involves constant collaboration with the Board to drive financial performance and market expansion. Crystal Heter prioritizes the optimization of energy transport systems to meet evolving industry demands. Through rigorous oversight of asset management, the Chief Executive Officer secures the competitive position of the company. Heter fosters a culture of safety and reliability, ensuring that all midstream operations adhere to the highest standards of performance. Ultimately, the Chief Executive Officer drives the long-term value creation for all stakeholders involved in the energy infrastructure business.

David Dehaemers, the President & Chief Executive Officer, Amp at Tallgrass, leads the specialized initiatives focused on the Amp division. Dehaemers architects the growth strategy for these specific energy assets, ensuring that the division contributes effectively to the broader corporate mission. By managing the development of midstream infrastructure, the President & Chief Executive Officer, Amp ensures that technical capabilities remain at the forefront of the industry. This role requires close coordination with other executive leaders to synchronize project timelines and resource allocation. David Dehaemers drives innovation in asset utilization, focusing on maximizing throughput and operational uptime. Through the implementation of advanced engineering standards, the President & Chief Executive Officer, Amp enhances the reliability of the energy network. Dehaemers oversees the execution of complex projects, ensuring that every initiative supports the overarching goal of providing essential energy services across the North American market.

Matt Sheehy, the President & Chief Executive Officer at Tallgrass, manages the day-to-day operational execution of the company. Sheehy directs the expansion of midstream energy assets, focusing on the development of new pipelines and storage facilities. By overseeing the technical teams, the President & Chief Executive Officer ensures that all infrastructure projects meet rigorous safety and environmental standards. This leadership role involves navigating complex regulatory landscapes to facilitate the growth of the energy network. Matt Sheehy drives the implementation of efficient operational processes, reducing costs while increasing service reliability. Through strategic planning, the President & Chief Executive Officer aligns the company with emerging market trends in the energy sector. Sheehy coordinates with the executive team to ensure that capital investments yield high returns. Ultimately, the President & Chief Executive Officer maintains the operational integrity of the entire midstream portfolio, supporting the energy needs of North American customers.

Kyle Quackenbush, the President, Segment Liquids (Crude Oil & Co2) at Tallgrass, manages the operations and commercial strategy for the liquids business unit. Quackenbush directs the transport and storage of crude oil and carbon dioxide, ensuring that these critical energy streams move efficiently across the North American network. By overseeing the segment performance, the President, Segment Liquids (Crude Oil & Co2) identifies opportunities for market expansion and asset optimization. This role involves managing relationships with key customers and ensuring that service delivery meets contractual obligations. Kyle Quackenbush drives the development of infrastructure projects specifically tailored to the needs of the liquids market. Through the analysis of market data, the President, Segment Liquids (Crude Oil & Co2) adjusts operational strategies to maximize profitability. Quackenbush coordinates with the broader executive team to ensure that the liquids segment remains a core pillar of the company's energy services portfolio.

Brooke Vandygriff, the Senior Vice President, Capital Project Development and Chief of Staff at Tallgrass, oversees the planning and execution of major infrastructure investments. Vandygriff directs the capital project lifecycle, from initial design to final commissioning, ensuring that all developments align with the strategic goals of the company. As Chief of Staff, the Senior Vice President, Capital Project Development and Chief of Staff manages internal communications and coordinates executive priorities to streamline decision-making. This role involves balancing project budgets with technical requirements to ensure the successful delivery of energy assets. Brooke Vandygriff drives the integration of new technologies into existing systems, enhancing the overall efficiency of the midstream network. Through meticulous project management, the Senior Vice President, Capital Project Development and Chief of Staff mitigates risks associated with large-scale construction. Vandygriff ensures that all capital projects support the long-term growth and operational stability of the organization.

Joey Mahmoud, the Executive Vice President & Chief People Officer at Tallgrass, leads the human capital strategy and organizational development initiatives. Mahmoud directs the recruitment, retention, and professional growth programs that support the workforce behind the midstream energy operations. By overseeing the alignment of talent with corporate objectives, the Executive Vice President & Chief People Officer ensures that the company maintains a high-performance culture. This role involves designing compensation and benefits structures that attract top industry experts. Joey Mahmoud drives the implementation of training programs focused on safety and technical proficiency, which are critical for the energy sector. Through the management of internal communications and employee engagement, the Executive Vice President & Chief People Officer fosters a collaborative environment. Mahmoud works closely with other executives to ensure that the organizational structure supports the operational scale of the company. Ultimately, the Executive Vice President & Chief People Officer secures the human resources necessary for sustained success.