Big Rivers Electric Executive and Leadership Team

November, 2026

Leadership Overview

Big Rivers Electric has 5 executives leading key functions including strategy, operations, financial management, and administration.

Committed to reliable power delivery, Big Rivers Electric drives regional energy stability through advanced generation and management services. This organization prioritizes sustainable infrastructure development to support long-term community growth.

Leadership Roles at Big Rivers Electric

  • President & Chief Executive Officer - Mark Bailey
  • President & Chief Executive Officer - Donald Gulley
  • Chief Financial Officer - Talina Mathews
  • Chief Operating Officer - Nathan Berry
  • Chief Administrative Officer - Michael Mizell
  • Mark Bailey - President & Chief Executive Officer

    Mark Bailey, the President & Chief Executive Officer at Big Rivers Electric, directs the overarching corporate strategy for electrical generation and management services. Bailey focuses on long-term grid reliability and the expansion of energy capacity across the regional footprint. By aligning generation assets with market demand, the President & Chief Executive Officer ensures consistent service delivery for all member cooperatives. This leadership role involves constant engagement with regulatory bodies to maintain compliance and operational excellence. Mark Bailey also oversees the integration of new energy technologies to modernize the existing infrastructure. Through rigorous oversight of capital projects, the President & Chief Executive Officer secures the financial health of the organization. Strategic planning remains a core priority, as the executive team navigates the complexities of the modern energy landscape to provide affordable and dependable power solutions for the entire service territory.

    Donald Gulley - President & Chief Executive Officer

    Donald Gulley, the President & Chief Executive Officer at Big Rivers Electric, manages the high-level stakeholder relationships and external partnerships essential for regional energy stability. Gulley concentrates on the transition toward diversified energy portfolios to meet evolving environmental standards. The President & Chief Executive Officer coordinates with the Board to define the mission and vision for future generation capabilities. By fostering a culture of safety and efficiency, the President & Chief Executive Officer drives performance improvements across all generation facilities. Donald Gulley also monitors industry trends to anticipate shifts in energy policy that impact the company's operational model. This executive leadership ensures that the organization remains competitive while fulfilling the core mandate of providing reliable electricity. Through proactive communication with community leaders, the President & Chief Executive Officer strengthens the market position of the company within the broader energy sector.
    Donald Gulley

    Talina Mathews - Chief Financial Officer

    Talina Mathews, the Chief Financial Officer at Big Rivers Electric, manages the fiscal health and capital allocation strategies for the organization. Mathews oversees the budgeting process, financial reporting, and long-term investment planning required for maintaining generation infrastructure. The Chief Financial Officer directs the treasury functions and debt management strategies to ensure liquidity for ongoing operations. By analyzing market data, the Chief Financial Officer provides the insights necessary for pricing energy services competitively. Talina Mathews also leads the risk management initiatives to protect the company against financial volatility in the energy markets. This leadership role involves close collaboration with the executive team to fund strategic growth projects. Through rigorous financial oversight, the Chief Financial Officer ensures that all capital expenditures align with the company's mission. Mathews maintains a focus on fiscal discipline, supporting the overall stability and sustainability of the organization's power generation services.

    Nathan Berry - Chief Operating Officer

    Nathan Berry, the Chief Operating Officer at Big Rivers Electric, oversees the daily technical operations of all electrical generation assets. Berry manages the maintenance schedules and performance metrics for power plants to ensure maximum uptime and efficiency. The Chief Operating Officer directs the engineering teams responsible for grid management and infrastructure upgrades. By optimizing operational workflows, the Chief Operating Officer reduces downtime and enhances the reliability of power distribution. Nathan Berry also coordinates with external contractors to execute large-scale facility improvements. This role requires constant monitoring of plant output and fuel supply chains to maintain consistent service levels. Through the implementation of advanced diagnostic tools, the Chief Operating Officer improves the longevity of critical equipment. Berry maintains a focus on operational excellence, ensuring that the technical backbone of the company supports the broader mission of providing dependable energy to the region.

    Michael Mizell - Chief Administrative Officer

    Michael Mizell, the Chief Administrative Officer at Big Rivers Electric, directs the internal support functions including human resources, corporate communications, and facility management. Mizell oversees the organizational development initiatives that align the workforce with the company's mission of providing reliable electrical services. The Chief Administrative Officer manages the internal policies and compliance frameworks that govern daily business activities. By streamlining administrative processes, the Chief Administrative Officer improves organizational efficiency and employee engagement. Michael Mizell also coordinates the corporate outreach programs to maintain positive relationships with the communities served by the company. This role involves managing the physical office environment and the digital infrastructure that supports administrative operations. Through the development of robust internal systems, the Chief Administrative Officer ensures that the company operates with transparency and accountability. Mizell focuses on building a strong corporate culture that supports the technical and financial goals of the entire organization.
    Michael Mizell

    Explore Leadership Teams in Electricity, Oil & Gas

    Frequently Asked Questions Regarding Big Rivers Electric Top Executives and Leadership Team

    Who leads Big Rivers Electric?
    Big Rivers Electric is led by Mark Bailey (President & Chief Executive Officer), along with executives such as Donald Gulley (President & Chief Executive Officer) and Talina Mathews (Chief Financial Officer).
    Who is part of Big Rivers Electric’s executive team?
    The executive team of Big Rivers Electric includes leaders such as Mark Bailey (President & Chief Executive Officer), Donald Gulley (President & Chief Executive Officer), Talina Mathews (Chief Financial Officer) and other senior executives.
    How many executives does Big Rivers Electric have?
    Big Rivers Electric has 5 executives leading key business areas.
    What roles are included in Big Rivers Electric’s leadership team?
    The leadership team of Big Rivers Electric includes roles such as President & Chief Executive Officer, President & Chief Executive Officer, Chief Financial Officer, Chief Operating Officer, Chief Administrative Officer.