Vincent T. Cubbage — Chief Executive Officer and Chairman of the Board of Directors . Mr. Cubbage has served as our Chief Executive Officer and as a Director since February 2021 and will serve as our Chairman of the Board of Directors following the completion of this offering. Since July 2020, Mr. Cubbage has served as Chief Executive Officer, President and as a director of Tortoise Acquisition II, and as Chairman of the Tortoise Acquisition II Board since the completion of its initial public offering in September 2020. Mr. Cubbage served as Chief Executive Officer, President and as a director of Tortoise Acquisition I from November 2018, and as Chairman of the Tortoise Acquisition I Board from the completion of its initial public offering in March 2019, to the completion of its initial business combination with Hyliion on October 1, 2020, and he continues to serve on the board of directors of Hyliion Holdings Corp. He has served as Managing Director — Private Energy of Tortoise Capital Advisors, L.L.C. since January 2019. Mr. Cubbage served as the Chief Executive Officer and a member of the Board of Managers of Lightfoot Capital Partners GP LLC, the general partner of Lightfoot Capital Partners, LP, since it was formed in 2006. He served as Chief Executive Officer, Director and Chairman of the Board of Arc Logistics GP LLC, the general partner of Arc Logistics Partners LP (NYSE: ARCX), formerly a publicly-traded partnership engaged in the midstream business, from October 2013 to the date of its sale in December 2017. From 2007 to 2011, Mr. Cubbage also served on the board of managers of the general partner of International Resources Partners, LP, a private partnership founded by Lightfoot Capital that was engaged in the mining of natural resources. Prior to founding Lightfoot Capital, Mr. Cubbage was a Senior Managing Director and Head of the Midstream sector in the Investment Banking Division of Banc of America Securities from 1998 to 2006. Before joining Banc of America Securities, Mr. Cubbage was a Vice President at Salomon Smith Barney in the Global Energy and Power Group where he worked from 1994 to 1998. Mr. Cubbage received an M.B.A. from the American Graduate School of International Management and a B.A. from Eastern Washington University.

We believe Mr. Cubbage’s extensive knowledge of the energy industry, as well as his substantial business, leadership and management experience, including serving on the board of directors of a publicly traded partnership, brings important and valuable skills to our board of directors.

Stephen Pang — President, Chief Financial Officer and Director . Mr. Pang has served as our President and Chief Financial Officer and as a Director since February 2021. Mr. Pang has served as a director of Tortoise Acquisition II since the completion of its initial public offering in September 2020 and has served as the Chief Financial Officer of Tortoise Acquisition II since July 2020. Mr. Pang served as a director of Tortoise Acquisition I from the completion of its initial public offering in March 2019, and as Chief Financial Officer of Tortoise Acquisition I since January 2020, to the completion of its initial business combination on October 1, 2020, and he continues to serve on the board of directors of Hyliion Holdings Corp. Mr. Pang is a Managing Director and Portfolio Manager at Tortoise, and is responsible for Tortoise’s public and private direct investments across its energy strategies. Prior to joining Tortoise in 2014, Mr. Pang was a director in Credit Suisse Securities (USA) LLC’s Equity Capital Markets Group. Before joining Credit Suisse Securities (USA) LLC in 2012, he spent eight years in Citigroup Global Markets Inc.’s Investment Banking Division, where he focused on equity underwriting and corporate finance in the energy sector. Mr. Pang received a B.S. in Business Administration from the University of Richmond and is a CFA charterholder.

We believe Mr. Pang’s extensive background in capital markets, finance and investing in the energy industry brings important and valuable skills to our board of directors.

Steven C. Schnitzer — Vice President, General Counsel and Secretary . Mr. Schnitzer has served as our Vice President, General Counsel and Secretary since February 2021. Mr. Schnitzer has served as Vice President, General Counsel and Secretary of Tortoise Acquisition II since the completion of its initial public offering in September 2020. Mr. Schnitzer served as Vice President, General Counsel and Secretary of Tortoise Acquisition I from the completion of its initial public offering in March 2019 to the completion of its initial business combination on October 1, 2020, and has served as Director and Private Energy — General Counsel of Tortoise Capital Advisors, L.L.C. since January 2019. Mr. Schnitzer served as Senior Vice President, General Counsel and Secretary of Lightfoot Capital Partners GP LLC, the general partner of Lightfoot Capital Partners, LP, from February 2014 through its wind-up in December 2019, and served as Senior Vice President, General Counsel and Secretary of Arc Logistics GP LLC, the general partner of Arc Logistics Partners LP (NYSE: ARCX), formerly a publicly traded partnership, from February 2014 until its sale in December 2017. Prior to joining Lightfoot Capital Partners GP LLC, Mr. Schnitzer practiced law with the firm of Katten Muchin Rosenman LLP, where he served as the Chair of the Corporate Group of the firm’s Washington, DC office from 2001 to January 2014 and specialized in corporate law, including mergers and acquisitions, corporate finance and securities matters. Prior to joining Katten Muchin Rosenman LLP, Mr. Schnitzer was an Associate from 1994 and a Partner from 1997 to 2000 in the Corporate Group of Crowell & Moring LLP in Washington, DC. Prior to joining Crowell & Moring LLP, Mr. Schnitzer was an Associate from 1988 to 1994 in the Corporate Finance Department of Debevoise & Plimpton LLP in New York City. Mr. Schnitzer received a Bachelor of Arts from the University of Maryland and a Juris Doctor degree from Touro College Jacob D. Fuchsberg Law Center, where he graduated cum laude and served as Editor-in-Chief of the law review.

Darrell Brock, Jr. — Vice President, Business Development . Mr. Brock has served as our Vice President of Business Development since February 2021. Mr. Brock has served as Vice President of Business Development of Tortoise Acquisition II since the completion of its initial public offering in September 2020. Mr. Brock served as Vice President of Business Development of Tortoise Acquisition I from the completion of its initial public offering in March 2019 to the completion of its initial business combination on October 1, 2020, and has served as Director — Private Energy of Tortoise Capital Advisors, L.L.C. since January 2019. Mr. Brock served as a Vice President of Lightfoot Capital Partners GP LLC and as Vice President of Business Development of Arc Logistics GP LLC, the general partner of Arc Logistics Partners LP (NYSE: ARCX), formerly a publicly traded partnership engaged in the midstream business, from July 2014 until the sale of Arc Logistics Partners LP in December 2017. From 2010 to June 2014, Mr. Brock served as a consultant to Arc Logistics GP LLC and Lightfoot Capital Partners GP LLC. Prior to joining Arc Logistics GP LLC, Mr. Brock was a Managing Partner at The Cumberland Group from 2009 to 2014. From 2007 to 2009, Mr. Brock was President and Chief Executive Officer of the midstream company DTX Oil, LLC. Mr. Brock served as Commissioner of the Kentucky Governor’s Office of Development from 2003 to 2005, where he oversaw state infrastructure and development, and also served as Senior Policy Advisor to the Governor. Mr. Brock received a B.B.A. in Accounting and an M.B.A. from Eastern Kentucky University.

Evan Zimmer — Vice President, Finance . Mr. Zimmer has served as our Vice President of Finance since February 2021. Mr. Zimmer has served as Vice President of Finance of Tortoise Acquisition II since the completion of its initial public offering in September 2020, and as an employee of Tortoise Capital Advisors, L.L.C. since January 2019 and supported the business combination activities of Tortoise Acquisition I. From April 2015 until February 2018, Mr. Zimmer served as an Associate of Lightfoot Capital Partners GP LLC, the general partner of Lightfoot Capital Partners, LP. Prior to joining Lightfoot Capital Partners GP LLC, Mr. Zimmer served as a Consultant in the Corporate Finance group at FTI Consulting, Inc. Mr. Zimmer received a Bachelor of Science degree in Business Administration from Bucknell University.