ROBBIEYN MAYHEW
Denver,CO
Summary
Midstream Operations Specialist with expertise in pipeline scheduling, system balancing, and emergency operations. Demonstrated success in stabilizing pipeline conditions and ensuring system reliability during critical events, including ruptures and peak demand scenarios. Proficient Energy Analyst skilled in data analysis and forecasting, providing actionable insights to enhance decision-making. Strong project management and communication skills have led to effective cost-saving initiatives in previous roles.
Overview
15
15
years of professional experience
Work History
Senior Gas Scheduling Analyst
XCEL ENERGY
01.2021 - Current
- Support Gas Control with accurate nominations, flow monitoring, and operational decision-making.
- Serve as primary operational contact for NSP customers, ensuring reliable service and resolving volume issues.
- Perform regulatory/government reporting with 100% accuracy.
- Lead imbalance reconciliation to prevent financial exposure.
- Respond to OFO events and communicate system constraints.
- Partner with Measurement to validate meter data across NSP and PSCo.
- Develop SOPs, workflows, and operational guides.
HR Team Lead
SANDIA NATIONAL LABORATORIES
01.2021 - 12.2021
- Led 12 employees supporting onboarding, HRIS, and benefits for 15,000+ staff.
- Delivered 401(k) and pension education.
- Ensured accuracy in benefits enrollment and HRIS management.
Energy Analyst
PNM RESOURCES
01.2020 - 12.2021
- Performed settlements, confirmations, and reconciliations for CAISO, MRTU, EIM, bilateral deals, and gas transport.
- Managed AP/AR and GL workflows for wholesale power.
- Supported audits with compliant documentation.
- Used analytics to resolve discrepancies.
Energy Scheduler / Gas Supply Operations
PUGET SOUND ENERGY
01.2018 - 12.2020
- Managed scheduling across 7 major pipelines, reduced documentation errors by 50%+, saved $100K+.
- Critical contributor during a major pipeline rupture; supported rerouting and load management.
- Scheduled gas across the Canadian border with regulatory precision.
- Improved efficiency 35% and cut expenditures 20% through daily check-ins.
- SME for COG marketers and traders; ensured accurate CT plant burns and heat-rate calculations.
- Maintained reliability during OFOs and constraint events.
- Created training documentation as the sole remaining scheduler.
- Earned the PSE Silver Employee Award.
Associate Business Support Analyst
PUGET SOUND ENERGY
01.2014 - 12.2018
- Produced 650+ conservation lighting grants in 6 months.
- Automated workflows and reduced process delays.
- Liaison between engineering, contractors, and leadership.
Records Analyst / Account Executive II
SQUARE ONE DISTRIBUTION
01.2011 - 12.2014
- Managed AP/AR for 280+ accounts.
- Revamped invoicing for 500+ accounts totaling $2.8M monthly.
- Coordinated international logistics and monthly audits.
Education
Bachelor of Arts - Organizational Management of Business, Lean Process
Whitworth University
Spokane, WASkills
- Midstream Operations
- Regulatory reporting
- Data validation
- Problem solving
- Workflow optimization
- Team leadership
- Deadline management
- Cross-functional coordination
- Pipeline Scheduling
- System Reliability
- OFO Response
- Linepack Monitoring
- Gas Control Support
- Cross-Border Transport
- Emergency Event Support
- CT Plant Burns
- Flow Optimization
- Imbalance Resolution
Awards
- Puget Sound Energy - Silver Employee Award
- Marine Corps - Key Spouse Coordinator
Timeline
Senior Gas Scheduling Analyst
XCEL ENERGY
01.2021 - Current
HR Team Lead
SANDIA NATIONAL LABORATORIES
01.2021 - 12.2021
Energy Analyst
PNM RESOURCES
01.2020 - 12.2021
Energy Scheduler / Gas Supply Operations
PUGET SOUND ENERGY
01.2018 - 12.2020
Associate Business Support Analyst
PUGET SOUND ENERGY
01.2014 - 12.2018
Records Analyst / Account Executive II
SQUARE ONE DISTRIBUTION
01.2011 - 12.2014
Bachelor of Arts - Organizational Management of Business, Lean Process
Whitworth University