Jonathan Casselberry is a seasoned finance leader with over ten years of experience in driving strategic financial decisions within the energy sector. Currently serving as the Senior Director of Corporate Planning at ONEOK, they focus on financial planning, analysis, and enterprise transformation. Previously, Jonathan held key roles at Phillips 66, including Director of Investment Appraisal and Director of Enterprise Planning, where they spearheaded initiatives that significantly improved forecasting processes and supported sustainable operational changes. Jonathan earned a BA in Economics from Covenant College and an MBA from Rice Business, and they are passionate about leveraging data and analytics to facilitate energy transition and sustainable solutions.
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