Charles R. Vanorsdale

Charles R. Vanorsdale recently retired from Saudi Aramco, where he had been a senior petroleum engineering consultant in the upstream development strategy and reserves department. In his 15 years at Aramco in Dhahran, he ensured compliance with PRMS guidelines in the annual reserves reporting process and was a key player in Aramco’s 2019 initial public offering. Prior to Aramco, he had been brought onboard at El Paso Corporation to bring their coalbed methane reserves in compliance with the US Securities and Exchange Commission rules. Vanorsdale has been focused on reserves assessment and guidelines since 1980 when he joined an international consulting firm. His career has spanned over 40 years, starting with Getty Oil Company in the late 1970s. He served on the SPE Oil & Gas Reserves Committee from 2017 to 2021 and on numerous other SPE committees since 1989. A registered professional engineer in the states of Texas and Oklahoma, he holds a BS in petroleum engineering and a master’s of engineering management degree, both from the University of Tulsa.