Mark W. Helderman

Mark W. Helderman

DirectoratOneok Inc /New/· In proxies 2023–2025

Mark W. Helderman sits on 7 public boards.

Experience

  1. Oneok Inc /New/Public company · 3 yr
    • Director2023 – Present · 3 yrNo stock prices for these years
  2. Republic Airways Holdings, Inc.Public company · 9 yr
    • Director2017 – Present · 9 yrNo stock prices for these years
  3. Valero Energy Partners LPPublic company · 13 yr
    • Director2013 – Present · 13 yrNo stock prices for these years
  4. MarkWest Energy Partners, L.P.Public company · 15 yr
    • Director2011 – Present · 15 yrNo stock prices for these years
  5. Valero Energy Corp.Public company
    • Director? – PresentNo stock prices for these years
  6. Valero Energy Partners GP LLCPublic company
    • Director? – PresentNo stock prices for these years
  7. Bristow Group Inc.Public company · 7 yr
    • Director2012 – 2019 · 7 yrNo stock prices for these years
  8. Oiltanking Partners, L.P.Public company · 3 yr
    • Director2011 – 2014 · 3 yrNo stock prices for these years

Roles come from the proxy statements of each company.

Activity

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