Mark Plaumann

Mark Plaumann

Director/Board Member at DIAMONDBACK ENERGY, INC.

Net worth: 3 M $ as of 31/05/2026

70 year
Finance
Energy Minerals
Electronic Technology

Profile

Mr. Mark L.
Plaumann is an Independent Director at Mammoth Energy Services, Inc., an Independent Director at Diamondback Energy, Inc., an Independent Director at Rhino GP LLC, a Managing Member at Greyhawke Capital Advisors LLC and a Manager at Whisper Manager LLC.
He is on the Board of Directors at Mammoth Energy Services, Inc., Diamondback Energy, Inc., Rhino GP LLC, Diamondback E&P LLC and UCF Foundation, Inc. Mr. Plaumann was previously employed as an Independent Director by Rhino Resource Partners LP, an Independent Director by Republic Airways Holdings, Inc. (Old), a Senior Vice President by Wexford Capital LP, a Managing Director by Alvarez & Marsal, Inc., a President by American Healthcare Management, Inc., a Senior Manager by Ernst & Young LLP, and an Owner by Evwest LLC.
He also served on the board at ICX Corp., FLIR Detection, Inc., Elcotel, Inc., CellMetrix, Inc., GalleryPlayer, Inc. and Oilfield Management Services LLC.
He received his undergraduate degree from the University of Central Florida and an MBA from the University of Central Florida.

Known holdings in public companies

CompanyDateNumber of sharesValuationValuation date
09/06/2026 13,437 ( 0% ) 3 M $ 31/05/2026

Mark Plaumann active positions

CompaniesPositionStart
DIAMONDBACK ENERGY, INC. Director/Board Member 01/10/2012
MAMMOTH ENERGY SERVICES, INC. Director/Board Member 11/06/2025
Director/Board Member 04/10/2010
Director/Board Member -
Director/Board Member -
Whisper Manager LLC
Corporate Officer/Principal -
Founder 01/03/1998

Former positions of Mark Plaumann

CompaniesPositionEnd
REPUBLIC AIRWAYS HOLDINGS INC. Director/Board Member 01/04/2017
RHINO RESOURCE PARTNERS L.P. Director/Board Member 17/03/2016
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See the detail of Mark Plaumann's experience

Training of Mark Plaumann

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

Connections

72

1st degree connections

21

1st degree companies

Male

Female

Members of the board

Executives

Linked companies

Private companies21

Health Services

Electronic Technology

Health Technology

Finance

Commercial Services

Transportation

Consumer Durables

Energy Minerals

Energy Minerals

Electronic Technology

Finance

Consumer Services

Finance

Consumer Services

Distribution Services

Industrial Services

Commercial Services

Energy Minerals

Whisper Manager LLC

Industrial Services

Distribution Services