Douglas Wall

Director/Board Member at

Select Energy Services LLC

Net worth: 3 M $ as of 30/06/2026

73 year

46 connections

Industrial Services

Energy Minerals

Consumer Services

Profile

Douglas James Wall is currently Director at Select Energy Services LLC.
Former roles include President & Chief Executive Officer at Patterson-UTI Energy, Inc. from 2007 to 2012, President & Chief Executive Officer at Western Rock Bit Co Ltd from 1991 to 1997, Director at Ameresco Select, Inc., Director at Fugro NV from 2014 to 2021, Director at SES Holdings LLC from 2012 to 2014, Independent Director at Select Water Solutions, Inc. from 2016 to 2026, Director at Seventy Seven Energy, Inc. from 2016 to 2017, President at Baker Oil Tools, Inc. from 2003 to 2005, President at Hughes Christensen Co. from 1997 to 2003, and Group President-Completions & Production at Baker Hughes Co. from 2005 to 2007.
Education includes an MBA from the University of Alberta and undergraduate studies at the University of Calgary.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
SELECT WATER SOLUTIONS, INC. CLASS A 0.1%	10/03/2026	128,058 ( 0.1% )	3 M $	30/06/2026

Douglas Wall active positions

Companies	Position	Start
Select Energy Services LLC Select Energy Services LLC Oilfield Services/EquipmentIndustrial Services Operates as an oil and gas company	Director/Board Member	-

All active positions of Douglas Wall

Former positions of Douglas Wall

Companies	Position	End
SELECT WATER SOLUTIONS, INC.	Director/Board Member	07/05/2026
FUGRO N.V.	Director/Board Member	22/04/2021
SEVENTY SEVEN ENERGY INC	Director/Board Member	20/04/2017
SES Holdings LLC SES Holdings LLC Oilfield Services/EquipmentIndustrial Services Operates as a holding company with interest in providing oil and gas services	Director/Board Member	01/12/2014
PATTERSON-UTI ENERGY, INC.	Chief Executive Officer	30/09/2012

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Training of Douglas Wall

Experiences
Positions held

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Private companies

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Connections

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Linked companies

Private companies	13
Patterson-UTI Energy, Inc. Patterson-UTI Energy, Inc. Oil & Gas ProductionEnergy Minerals Provides pressure pumping and onshore contract drilling services & manufactures and distributes drilling equipment	Energy Minerals
Ameresco Select, Inc. Ameresco Select, Inc. Engineering & ConstructionIndustrial Services Provides engineering, installation and maintenance services	Industrial Services
Fugro NV Fugro NV Engineering & ConstructionIndustrial Services Provides geo data, geo technical, survey and geoscience services	Industrial Services
Western Rock Bit Co Ltd Western Rock Bit Co Ltd Oilfield Services/EquipmentIndustrial Services Distributes drilling bits in Canada	Industrial Services
University of Alberta University of Alberta Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
University of Calgary University of Calgary Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Baker Oil Tools, Inc. Baker Oil Tools, Inc. Contract DrillingIndustrial Services Producing tools necessary for the drilling, maintenance, and upkeep of oil products/machinery.	Industrial Services
Hughes Christensen Co. Hughes Christensen Co. Oilfield Services/EquipmentIndustrial Services Manufactures diamond drill and tricone bits for the oil & gas industries	Industrial Services
Select Energy Services LLC Select Energy Services LLC Oilfield Services/EquipmentIndustrial Services Operates as an oil and gas company	Industrial Services
SES Holdings LLC SES Holdings LLC Oilfield Services/EquipmentIndustrial Services Operates as a holding company with interest in providing oil and gas services	Industrial Services
Seventy Seven Energy, Inc. Seventy Seven Energy, Inc. Oilfield Services/EquipmentIndustrial Services Engages in providing drilling, pressure pumping, oilfield rental tools and trucking	Industrial Services
Baker Hughes Co. Baker Hughes Co. Contract DrillingIndustrial Services Engages in oilfield services, manufacturing of turbo machinery and oilfield equipment & provides digital solutions	Industrial Services
Select Water Solutions, Inc. Select Water Solutions, Inc. Oil & Gas ProductionEnergy Minerals Provides water management and automation services to oil & gas producers	Energy Minerals