Industry Sectors
- Upstream
- Midstream
- Downstream
- Renewables
Principal Areas of Practice
- Strategy Execution & Process Improvement
- Low Carbon Solutions
- ETRM System Implementation
- Business Process Design
- Supply Chain Optimization
- CRM Strategy
Professional Experience
Sam Stewart is a Dallas-based Managing Director in Opportune LLP’s Process & Technology practice. He specializes in translating commercial strategy into executable systems and process transformations across physical and financial trading environments. Sam leads enterprise ETRM implementations, operating model redesigns, and system replacements that align trading, risk, accounting, and logistics functions.
With experience spanning traditional fuels, renewables, and transportation, he has delivered full-lifecycle ETRM programs, from strategy and business case development through go-live and stabilization. Sam is known for converting high-level recommendations into practical, execution-ready solutions by aligning people, process, and technology to drive measurable operational and financial outcomes.
Sam began his career at Opportune in 2017 and holds a degree in Supply Chain Management & Mathematics from the University of Oklahoma.
Representative Projects
- Supply & Trading Strategy: Supports enterprise trading transformations, operating model design, and ETRM initiatives to enable asset-backed trading, derivatives capability, and scalable risk governance.
- ETRM System Design and Planning: Leads ETRM implementations and legacy system replacements, designing front-to-back trading processes across deal capture, risk configuration, scheduling, logistics, inventory, and invoicing.
- Renewables & Low Carbon Advisory: Guides obligated parties through complex regulatory requirements, designing forecasting, reconciliation, and attribute tracking frameworks that enhance credit optimization, position visibility, obligation planning, and audit readiness.
- M&A Readiness: Advises clients through acquisitions and divestitures, assessing people, process, and technology integration to reduce transition risk and accelerate value capture.
- Process Improvement: Identifies critical gaps and failure points stemming from poor system implementations or low business adoption, improving workflows and integrations while restoring system integrity to unlock intended business value.