Sidney L. Tassin is the founder and President of Carta Energy LLC, a firm that originates private institutional investments in the energy field. Mr. Tassin has over 30 years of experience in the energy industry as both an operating executive and private equity investor.
From 1996 through late-2006, Mr. Tassin was the President and a founding partner of Energy Spectrum Capital LP (ESC), responsible for the overall implementation of ESC’s midstream private equity investment program. ESC managed five private equity investment funds with aggregate capital commitments of over $1 billion. Through these private equity funds, Energy Spectrum invested in 24 portfolio companies in the midstream, oilfield service, and renewable sectors of the energy industry.
Prior to co-founding Energy Spectrum, Mr. Tassin held executive financial positions with MESA Inc. (the oil and gas company founded by T. Boone Pickens) and its predecessor companies from 1980 to 1994, including serving as chief financial officer from 1988 to 1994. Throughout this period, Mr. Tassin led a wide range of investment, acquisition, financing and recapitalization transactions. Prior to joining MESA Inc., Mr. Tassin was with Arthur Andersen & Co. in Houston, Texas from 1977 to 1980. He worked in the audit division, specializing in energy companies. Mr. Tassin received a Bachelor of Business Administration degree from Northeast Louisiana University in 1977.