Member Board of Directors, Spire Inc., Former Chief Legal Officer, NiSource Inc, Former CEO, Columbia Gas of Massachusetts
NiSource Inc.; Columbia Gas of Massachusetts
Boards:
Spire, Inc.
Industry:
Energy/Utilities
Member since:
2002
Membership Type:
Full
Ms. Hightman is a proven director and executive who has spent the majority of her career in the energy industry in a broad range of leadership roles as the industry evolves towards cleaner, renewable and more technologically advanced energy. She is adept at navigating public policy issues, with a focus on corporate and regulatory strategy, legal, ESG, environmental, risk management, public affairs and crisis management. After retiring from NiSource she was elected to the Board of Directors of Spire Inc. In her over three decade career she has gained extensive experience in highly regarded public companies such as NiSource, Spire, AT&T and Fifth Third Bancorp.
Public Company Board Position
In 2021, Ms. Hightman was elected to the Board of Directors of Spire Inc., the country’s fifth largest publicly traded natural gas company serving 1.7 million homes and businesses through its gas utilities in Alabama, Mississippi and Missouri. Spire’s natural gas-related businesses include Spire Marketing, Spire STL Pipeline and Spire Storage. Spire is headquartered in St. Louis, Missouri. She is a member of the Audit and Strategy Committees of the Board.
Executive Positions
From 2007 until 2021, Ms. Hightman served as Executive Vice President & Chief Legal Officer of NiSource Inc., a Fortune 500 NYSE listed energy holding company. She was one of seven executives developing and implementing the company’s long term strategic plan, running the business, managing evolving environmental and public policy issues, and overseeing risk management and compliance. She oversaw the IPO of a Master Limited Partnership of the interstate pipeline subsidiary, and its ultimate spin-off. She served as trusted strategic advisor to the Board and CEO. She was founder of a women’s leadership program, which led to an enterprise-wide DEI program.
From 2020 until its sale, Ms. Hightman also served as Chief Executive Officer & President of Columbia Gas of Massachusetts, a wholly owned subsidiary of NiSource Inc. and one of the largest gas utilities in Massachusetts operating nearly 5,000 miles of pipeline serving 325,000 customers. Ms. Hightman assumed the CEO role to oversee the response to an incident that resulted in a death, numerous injuries and significant property damage, leading to litigation, state and federal investigations, and a Department of Justice investigation. Her focus was on pipeline integrity, reliability, safety and compliance.
Ms. Hightman served as President of AT&T Illinois from 2001 to 2006, a period of accelerated technological change. Ms. Hightman executed key legislative and regulatory reforms necessitated by the evolution of telecom from wireline service to “three screens” and access to content. She drove cultural change, restored the company’s reputation, improved relationships with key stakeholders, and revived the government relations and external affairs functions.
Other Board Experience
•2013 until 2022, advisory board member Chicago region, Fifth Third Bancorp, a Fortune 500 NASDAQ listed diversified financial services company.
•2009 until 2013, Chair of the Illinois State Universities Retirement System Board, with fiduciary duty over a $14B pension system serving 200,000 members.
•2007 until 2013, Chair of the Illinois Board of Higher Education, a state oversight board responsible for all colleges and universities operating in Illinois.
Prior Executive Positions
•Partner and Energy, Telecommunications and Public Utilities Practice Group Leader of national law firm Schiff Hardin
•Staff Attorney, Energy Division, Florida Public Service Commission
•Staff Counsel, Florida Office of Public Counsel
Current Civic and Community Leadership
•Director and Vice Chair, Lincoln Presidential Foundation
Education
•B.A. Finance, University of Illinois, Champaign-Urbana (1979)
•J.D., Florida State University College of Law (1982)