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Marshall Lang is president of Sequent Energy Management. Prior to his appointment, Marshall was senior vice president of marketing. Marshall brings 30 years of diversified experience including both regulated and non-regulated areas of the energy industry. During his career, Marshall has held a number of start-up and key leadership positions. Marshall joined Sequent Energy Management in 2002.

Marshall began his natural gas career at Columbia Pipeline Group. While there, and at other Columbia companies, he led a number of business units, primarily in sales, marketing and customer service. He also held marketing and sales positions at Coastal Gas Marketing Company in Newport News, Va.