Board of Directors

Bahram Akradi has served as a director of NOG since July 2017 and as Chairman of the Board since January 2018. 

Mr. Akradi founded Life Time Group Holdings, Inc. (NYSE: LTH) in 1992 and has been a director since its inception.  He was elected Chief Executive Officer and Chairman of the Board of Directors in May 1996. Mr. Akradi has over 30 years of experience in healthy way of life initiatives.

From 1984 to 1989, he led U.S. Swim & Fitness Corporation as its Co-Founder and Executive Vice President. Mr. Akradi was a founder of the Health and Fitness Industry Leadership Council. 

Nicholas O’Grady has served as Chief Executive Officer at NOG since January 2020 and was named to its Board of Directors in 2024. Mr. O’Grady joined the company in June 2018, previously serving as Chief Financial Officer. He also held the title of President from September 2019 until his promotion to CEO. Mr. O’Grady leads the team in all aspects of the business, including acquisitions, investments, financial management and business strategy. Over his tenure, the company has executed acquisitions and related financings over 6 billion dollars.

Prior to joining NOG, Mr. O’Grady had nearly two decades of energy-related finance experience, both as an investment banker and as a principal investor. Mr. O’Grady began his career in the Natural Resources investment banking group at Bank of America. Later, moving to the asset management business, he worked at firms such as Highbridge Capital Management. Immediately prior to joining the company, Mr. O’Grady worked at Hudson Bay Capital Management, where he focused on energy-related equities, public credit, and private and direct investments.

Since 2025, Mr. O’Grady has served on the Board of Directors of the American Exploration & Production Council, or AXPC, as the only Non-Operating Upstream E&P CEO on the Council.

In 2026, Mr. O’Grady was named a finalist for the EY Entrepreneur of the Year Heartland award, which recognizes business leaders across Minnesota, Iowa, Kansas, Missouri, and Nebraska for exceptional ingenuity and corporate growth. He is also active in the community through volunteer youth coaching and service on several local nonprofit committees.

 Mr. O’Grady holds Bachelor of Arts degrees in History and Economics from Bowdoin College in Brunswick, Maine.

Lisa Bromiley has served as a director of NOG since September 2007 and is a member of the Audit Committee.

She has served as Chief Financial Officer of Fortify Energy, an oil and gas acquisition and production company, since May 2022. From October 2021 to May 2022, she served as Executive Vice President and Chief Financial Officer of North Shore Steel, a metals manufacturer and distributor. Prior to that, she served as Chief Financial Officer of Aviva Metals, Inc., a multinational metals manufacturer and distributor, from June 2019 to October 2021, and as Chief Financial Officer of BioUrja Group, a privately-held global commodity trading company, in 2018 and 2019. From 2014 to 2018, Ms. Bromiley co-founded and served as Chief Financial Officer of P3 Petroleum, LLC, an independent oil and gas exploration and production company.

Ms. Bromiley has also served as Chief Financial Officer of two public companies, Flotek Industries, Inc. (NYSE: FTK) and Platinum Energy Resources, Inc. Earlier in her career, she worked in the energy audit practice of PricewaterhouseCoopers LLP and held roles at two Fortune 500 companies.

Ms. Bromiley is a Certified Public Accountant and holds a B.B.A. and a Master of Accountancy from the University of Texas.

Michael Frantz has served as a director of Northern since August 2016 and is a member of NOG's Executive, Acquisition and Governance, Nominating and ESG Committees.

He has served as Vice President, Investments of TRT Holdings, Inc., a diversified private holding company based in Dallas, Texas, since February 2010, where he leads the investment team responsible for sourcing, due diligence, and managing new investment opportunities. At TRT Holdings, Mr. Frantz has led or played a material role in public and private investments ranging from $10 million to $1.2 billion across multiple industries, including minority stakes and merger and acquisition transactions. He brings institutional knowledge of the oil and gas industry to the board through TRT Holdings' ownership of Tana Exploration and other oil and gas activities.

Prior to joining TRT Holdings, Mr. Frantz was an Analyst with J.P. Morgan Asset Management from July 2008 to February 2010.

Mr. Frantz currently serves on the Advisory Board of Dos Rios Partners. He holds a B.A. in Business Administration, with a concentration in Finance and Accounting, and a Master of Professional Accounting, both from the University of Texas at Austin, McCombs School of Business.

William (Bill) Kimble has served as a director of Northern since July 2022 and is the Chair of NOG's Audit Committee.

He was with KPMG, one of the largest audit, tax, and advisory services firms in the world, or its predecessor firm, from 1986 until his retirement in 2015. From 2009 until his retirement, Mr. Kimble served as Office Managing Partner for the Atlanta office and Managing Partner – Southeastern United States, and was also responsible for moderating KPMG's Audit Committee Institute and Audit Committee Chair Sessions. During his tenure, he held numerous senior leadership positions, including Global Chairman of Industrial Markets, and served as KPMG's Energy Sector Leader for ten years and executive director of KPMG's Global Energy Institute.

Mr. Kimble currently serves on the boards of directors of both Liberty Energy Inc. and DCP Midstream GP, LLC.

Mr. Kimble holds a Bachelor of Accounting and Business Administration from Southern Methodist University in Dallas, Texas.

Stuart Lasher has served as a director of Northern since March 2020 and is the Chair of NOG's Compensation Committee.

He is the Founder, Chairman, and Chief Executive Officer of Quantum Capital Partners, Inc., a private investment firm based in Tampa, Florida, formed in 1998, which invests capital and provides expertise to businesses across various industries.

From September 2010 to July 2012, Mr. Lasher served as Chairman and Chief Executive Officer of Lifestyle Family Fitness, a fitness chain with 55 locations. In 1990, he co-founded and served as Chairman and Chief Executive Officer of National Business Solutions, Inc. (NBS), a professional employer organization based in St. Petersburg, Florida; following NBS's acquisition by Paychex, Inc. in August 1996, Mr. Lasher remained as Chief Executive Officer of the Paychex PEO division until June 1997. He began his professional career in public accounting with KPMG Peat Marwick.

Mr. Lasher currently serves on the board of directors of Life Time Group Holdings, Inc. (NYSE: LTH). He holds a degree in Finance and Accounting from Florida State University and is a Certified Public Accountant in the State of Florida.

Jennifer Pomerantz has served on Northern's board of directors since December 2021 and as Vice Chair of the Board since June 2026. She is Chair of NOG's Governance, Nominating and ESG Committee and Chair of the Acquisition Committee.

She has served as Managing Partner of Ellipsis Holdings, a family office, since 2022. Prior to that, she served as Chairman and Chief Executive Officer of American Natural, a lifestyle brand of convenience stores and fuel logistics solutions, from 2011 to 2021. Before founding that business, she launched and served as a Portfolio Manager for global natural resources strategies at Citadel Asset Management's Surveyor Capital and J.P. Morgan's Highbridge Capital Management. Ms. Pomerantz began her career in investment banking, covering power and energy for Bank of America.

Ms. Pomerantz currently serves on the advisory board of the Energy Policy Institute at the University of Chicago (EPIC), which is at the forefront of global research on climate, pollution, and their impact on the global energy challenge. She also serves on the advisory board of Plutus Capital Partners, a private credit fund, and on the board of directors of Life Time Group Holdings, Inc. (NYSE: LTH).