Our Team

  • William Keith Maxwell III

    Chief Executive Officer

    Keith Maxwell, Founder & CEO

    Keith founded Spark Energy in 1999, and grew the company from a small regional retail gas company to a large nationally recognized electricity and gas retail operation. Prior to Spark Energy, Keith was a founding partner in Wickford Energy in 1994, a large oil and gas producer services company. Wickford was sold to Black Hills Utilities in 1997. Prior to Wickford Energy, Keith was a partner in Polaris Pipeline formed in 1988, a medium size natural gas producer services and midstream company sold to TECO Pipeline in 1994. Keith has a long history of organic value creation in the energy industry. A native of Houston, Texas, Keith earned a Bachelor's Degree in Economics from the University of Texas at Austin in 1987.

    Keith has an uncommon ability to identify opportunities and build businesses from the ground up to capitalize on those opportunities. That unique ability was formally recognized in 2010 when Keith was named Ernst & Young Entrepreneur of the Year in the Energy, Chemicals and Mining category.

    Keith and his family are very active in giving time and money to Special Olympics, Child Advocates, Salvation Army, Star of Hope and Helping a Hero.

  • Nathan Kroeker



    Nathan Kroeker, appointed President of Spark Energy in April 2012, is responsible for overseeing the day-to-day operations and help shape the overall strategy of the company. Nathan is a 15-year industry veteran with diverse experience in public accounting, M&A, and both retail and wholesale energy.

    Nathan first joined the company in July 2010 as Executive Vice President and Chief Financial Officer of Spark Energy Ventures. Prior to Spark, Nathan held senior finance and leadership roles with Macquarie and Direct Energy. He began his career in public accounting, including both audit and M&A advisory functions.

    Nathan holds a Bachelor of Commerce (honors) degree from the University of Manitoba, and has both a CPA (Texas) as well as a CA(Canada). He is a board member for Young Life, a non-denominational community youth outreach program, and was formerly a board member for the Texas Diversity Council, where he received the Diversity First Award.

  • Allison Wall

    Chief Operating Officer

    Ali Wall

    As Chief Operating Officer, Allison is responsible for overseeing Spark Energy’s company operations which include IT, Billing & Transactions and Customer Care.

    Prior to joining Spark Energy in January 2013, Allison served as Executive Vice President and Chief Operating Officer at StarTex Power. Allison has extensive professional experience in retail energy company operations, including information technology, marketing, regulatory compliance, customer interaction centers, and billing and transaction management.

    Allison holds an MBA in Finance and Information Systems from Tulane University, a master's degree from The University of North Carolina at Chapel Hill, and a bachelor's degree from Clarkson University in New York.

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