Management Team
Thomas F. Karam
Executive Chairman
Thomas F. Karam was appointed executive chairman of Equitrans Midstream Corporation in January 2024, having previously served as the Company’s chief executive officer and chairman of the board since July 2019. Prior to that, Karam served as president and chief executive officer of Equitrans Midstream since September 2018 and a director since November 2018. Prior to services at Equitrans Midstream, he served as senior vice president, EQT Corporation (EQT) and president, Midstream from August 2018; serving in those capacities until the separation of EQT and Equitrans Midstream in November 2018. Karam served as chief executive officer and chairman of the general partner of EQM Midstream Partners, LP (EQM) from July 2019 until Equitrans Midstream’s acquisition of 100% of the limited partner interests in EQM in June 2020, chairman, president and chief executive officer, from October 2018 to July 2019, and as president, chief executive officer and director, from August 2018 to October 2018. Additionally, he served as chairman, president and chief executive officer of EQGP Holdings LP’s (EQGP) general partner from October 2018 until Equitrans Midstream’s acquisition of 100% of the limited partner interests in EQGP in January 2019, as well as president, chief executive officer and director from August 2018 to October 2018. Karam served on EQT’s board of directors from November 2017 until the separation of EQT and Equitrans Midstream in November 2018.
Karam has been a senior executive and entrepreneur in the midstream energy sector for more than 30 years. He is the founder and served as chairman of Karbon Partners, LLC, which invests in, owns, constructs, and operates midstream energy assets, from April 2017 to August 2018. Additionally, he is the founder and previously served as chairman and chief executive officer of PennTex Midstream Partners, LLC, a publicly traded master limited partnership with operations in North Louisiana and the Permian Basin from 2014 until its sale to Energy Transfer Partners in 2016. Preceding PennTex, he was the founder, chairman and chief executive officer of Laser Midstream Partners, LLC (Laser), one of the first independent natural gas gathering systems in the northeast Marcellus Shale, from 2010 until 2012 when it was acquired by Williams Partners. Prior to Laser, Karam was the president, chief operating officer and director of Southern Union Company, where he led its successful transformation from a large local distribution company to one of the largest pipeline companies in the United States at the time.
Prior to Southern Union Company, Karam was the president and chief executive officer of Pennsylvania Enterprises and PG Energy, a natural gas utility in central and northeastern Pennsylvania until its acquisition by Southern Union Company. He began his professional career in investment banking with Legg Mason Inc. and Thomson McKinnon.
Diana M. Charletta
President and Chief Executive Officer
Diana Charletta was appointed president and chief executive officer of Equitrans Midstream Corporation in January 2024, having previously served as the Company’s president and chief operating officer since July 2019, as well as executive vice president and chief operating officer of the Company since September 2018. In April 2022, Charletta was appointed to the Equitrans Midstream Board of Directors. She also served as president, chief operating officer, and a director of the EQM General Partner since July 2019, as well as executive vice president, chief operating officer and a director of the EQM General Partner and the EQGP General Partner since October 2018. In February 2019, the EQGP General Partner became a subsidiary of EQM; and in June 2020, EQM became a wholly owned subsidiary of Equitrans Midstream.
Charletta’s career includes experience in both the production and midstream sectors of the natural gas industry. In 1992, Charletta began her energy career with Chevron, working first as a roustabout and then as an engineer. She then joined Quicksilver Resources (formerly Mercury Exploration Company) as a petroleum engineer. Charletta joined EQT Corporation in 2002 as a senior pipeline engineer and continued to move through the ranks, having held various management positions with increasing responsibility. She was promoted to manager of pipeline engineering in 2005 and became director of gas systems planning in 2008. In 2010, Charletta became vice president of gas management and transportation; she assumed the role of senior vice president of midstream operations in 2013; and was promoted to senior vice president of midstream engineering and construction in 2017. In November 2018, EQT separated its upstream and midstream businesses, and Equitrans Midstream Corporation became a standalone, publicly traded midstream company.
A Pittsburgh native, Charletta holds a Bachelor of Science degree in petroleum and natural gas engineering from West Virginia University; and she is a graduate of the Women’s Executive Leadership Program at Duquesne University. She currently sits on the Equitrans Midstream Foundation board; is a director of the Southern Gas Association (a natural gas trade association); has served on the Company’s ASPIRE (Area Students Participating In Rewarding Education) committee since 2003; and also served as a board member of the Three Rivers Youth organization.
Justin Macken
Executive Vice President, Pipeline Operations and Project Execution
Justin Macken was appointed executive vice president of pipeline operations and project execution for Equitrans Midstream Corporation in January 2024, having previously served as the Company’s senior vice president of gas systems planning and engineering since November 2018. Macken has decades of in-depth experience in the energy industry, including the implementation of strategic growth opportunities and business optimization efforts for the midstream sector.
In 2001, Macken began his energy career with Washington Gas, working in both engineering and construction support and, throughout his tenure, held numerous positions of increasing responsibility, including supervisor of system planning and manager of construction planning. In 2008, he joined EQT Corporation as manager of gas systems planning and was promoted to director and vice president of gas systems planning in 2010 and 2014, respectively. In these roles, Macken had oversight of the modeling, storage engineering, gas control, and gas management functions for the Equitrans transmission and gathering systems. Following the separation of EQT’s upstream and midstream business in November 2018, Equitrans Midstream Corporation became a standalone, publicly traded midstream company, and Macken was promoted to senior vice president of gas systems planning and engineering, with responsibility for Equitrans’ overall engineering function, as well as the Company’s water business segment.
A native of Virginia, Macken holds a Bachelor of Science degree in Mechanical Engineering from Virginia Tech and is a registered Professional Engineer and member of the American Society of Mechanical Engineers.
Kirk Oliver
Executive Vice President and Chief Financial Officer
Kirk Oliver was appointed executive vice president and chief financial officer for Equitrans Midstream Corporation in January 2024, having previously served as the Company’s senior vice president and chief financial officer since September 2018.
Oliver began his professional career as an engineer in 1981 with Motorola, Inc.; and in 1987, he made the move to the financial sector, joining Lehman Brothers as an associate working in the Global Power & Energy Group where he managed the firm’s relationships with major power and energy companies. During his 11-year tenure with Lehman, his responsibilities included various investment banking transactions, equity and debt issuances, and mergers & acquisitions advisory; he was promoted to vice president in 1991 and to senior vice president in 1994. In 1998, Oliver joined TXU Corp as vice president, treasurer, and assistant secretary where he led the successful development and execution of a strategy to restructure the company, rationalize assets, strengthen the balance sheet, and restore investor confidence. He became senior vice president of finance in 2000 and was promoted to executive vice president and chief financial officer in 2004. Oliver worked as a consultant and senior executive for Hunt Power, L.L.C. from 2006-2008; he then became senior vice president and chief financial officer for Allegheny Energy, Inc. from 2008-2011, during which time he realigned reporting segments, streamlined the investor relations disclosure reporting, and helped to implement several transactions, including the merger with FirstEnergy. Prior to joining Equitrans Midstream, he was chief financial officer for UGI Corporation where he helped the company deliver record earnings and shareholder returns.
Oliver holds a Bachelor of Science degree in Electrical Engineering from Lawrence Technological University; and a Master of Business Administration degree from the University of Chicago’s Booth (Graduate) School of Business.
Stephen M. Moore
Executive Vice President and Chief Legal Officer
Stephen Moore was appointed executive vice president and chief legal officer for Equitrans Midstream Corporation in January 2024, having previously served as the Company’s senior vice president and general counsel since April 2019. Along with his extensive leadership and managerial experience, Moore has more than 30 years of experience counseling in-house clients in a variety of business and legal environments. His specific areas of expertise include commercial transactions, with an emphasis on the midstream energy sector; securities and corporate governance matters; statutory and regulatory compliance; mergers and acquisitions; and capital markets transactions.
From 2014 until 2017, Moore was general counsel of PennTex Midstream Partners, LP, a publicly traded master limited partnership, and its privately held sponsor. PennTex constructed and operated midstream facilities in Louisiana and the Permian Basin. In a series of transactions during 2016 and 2017, the PennTex entities were acquired by Energy Transfer Partners, L.P. (ETP). Most recently, Moore served as special projects counsel to UGI Corporation, providing advice on corporate development and other strategic projects, primarily mergers and acquisitions transactions.
Moore joined Southern Union Company in 2009, serving as deputy chief legal officer of its Panhandle Energy business segment until Southern Union’s sale to ETP in 2012. Upon joining ETP, he became associate general counsel and lead lawyer for the interstate pipeline business segment; and also served as general counsel of Citrus Corp. and its subsidiary, Florida Gas Transmission Company (a joint venture of ETP and Kinder Morgan). Prior to Southern Union, Moore held senior legal positions in the law departments of public and private companies, including General Electric Capital Corporation. He began his professional career in Connecticut as a state criminal prosecutor and a commercial litigation associate for a regional law firm.
Moore holds a Bachelor of Arts degree in American Studies from Georgetown University and a Juris Doctor degree from Georgetown University Law Center.
Nate Tetlow
Senior Vice President, Commercial Services
Nate Tetlow was appointed to senior vice president, commercial services of Equitrans Midstream Corporation in January 2024, having previously served as the Company’s vice president, corporate development and investor relations since September 2018.
Possessing in-depth experience in the fields of corporate finance and investor relations, Tetlow joined EQT Corporation in 2008 as a business specialist in the treasury department and held various management positions with increased responsibility, including being instrumental in driving 16 capital market transactions, totaling approximately $14 billion. He was promoted to manager of corporate treasury in 2011 and became investor relations manager in 2012. Following two successful initial public offerings – EQM Midstream Partners, LP in 2012 and EQGP Holdings, LP in 2015 – Tetlow was promoted to investor relations director for EQM/EQGP. Following the upstream and midstream business separation in November 2018, Equitrans Midstream was launched as a standalone midstream company. Subsequently, as part of structure simplification, the EQGP General Partner became a subsidiary of EQM in February 2019 and EQM became a wholly owned subsidiary of Equitrans Midstream in June 2020.
In 2000, Tetlow began his financial career with Federated Investors, working in both corporate finance and investor relations and held numerous positions of increasing responsibility, including as assistant business controller and fixed income security analyst.
A Pennsylvania native, Tetlow holds a Bachelor of Science degree in Finance from Virginia Tech’s Pamplin College of Business and a Master of Business Administration degree from Carnegie Mellon University’s Tepper School of Business. He earned the Chartered Financial Analyst designation in 2004 and is a member of the National Investor Relations Institute and the Chartered Financial Analyst Society of Pittsburgh.