Charles Leykum

Chief Executive Officer at

CSL Capital Management LLC

Net worth: 2 M $ as of 2026-05-30

48 year

80 connections

Industrial Services

Finance

Consumer Services

Profile

Charles Syl Leykum is the founder of United Oilfield Services Sp zoo, founded in 2011.
Mr. Leykum is the founder of CSL Capital Management LLC, founded in 2008, serving as Managing Partner.
Mr. Leykum is the founder of Ranger Services LLC, founded in 2014, serving as Director.
Current jobs include Chairman & Chief Executive Officer at Talon Capital Corp.
starting in 2025, Chairman at Independence Oilfield Chemicals LLC, Chairman at BJ Services, Inc. since 2017, Director at Mission Well Services LLC, Director at Ranger Energy Services LLC since 2014, and Director at Raptor Lift Solutions LLC.
Former jobs include Chairman at PyraMax Ceramics LLC, Director at Niko Resources Ltd., Independent Director at Ranger Energy Services, Inc. from 2017 to 2024, Independent Director at Sentinel Energy Services, Inc. from 2017 to 2023, Portfolio Manager at Soros Fund Management LLC from 2004 to 2007, and Analyst at Goldman Sachs & Co. LLC from 1999 to 2002.
Education includes undergraduate degree from The Trustees of Columbia University in The City of New York in 1999, undergraduate degree from Harvard University, and MBA from Harvard Business School in 2004.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
RANGER ENERGY SERVICES, INC. CLASS A 0.45%	2025-05-29	106,005 ( 0.45% )	2 M $	2026-05-30

Charles Leykum active positions

Companies	Position	Start
CSL Capital Management LLC CSL Capital Management LLC Investment ManagersFinance CSL Capital invests companies in the United States. The firm focuses on companies operating in the fields of energy services, equipment and technology. It provides financing for growth stage capital requirements with an investment size ranging from USD 10 to 100 million.	Chief Executive Officer	2008-05-31
Ranger Energy Services LLC Ranger Energy Services LLC Contract DrillingIndustrial Services Provides oilfield services	Director/Board Member	2013-12-31
BJ Services, Inc. BJ Services, Inc. Oilfield Services/EquipmentIndustrial Services Provides hydraulic fracturing and cementing services	Chairman	2017-05-31
Independence Oilfield Chemicals LLC Independence Oilfield Chemicals LLC Construction MaterialsNon-Energy Minerals Specializes in stimulation of chemical and cementing solutions	Chairman	-
Mission Well Services LLC Mission Well Services LLC Oilfield Services/EquipmentIndustrial Services Provides hydraulic fracturing and coiled tubing services to oil and gas exploration industry	Director/Board Member	-
Ranger Services LLC Ranger Services LLC Finance/Rental/LeasingFinance Engages in residential mortgage lending and real estate settlement services	Founder	2013-12-31
Raptor Lift Solutions LLC Raptor Lift Solutions LLC Industrial MachineryProducer Manufacturing Operates as a oilfield services company that provides artificial lift technologies and services	Director/Board Member	-

All active positions of Charles Leykum

Former positions of Charles Leykum

Companies	Position	End
RANGER ENERGY SERVICES, INC.	Director/Board Member	2024-10-31
SENTINEL ENERGY SERVICES INC	Director/Board Member	2022-12-31
░░░░ ░░░░░░░░░ ░░░░	░░░░░░░░░░░░░░ ░░░░░░	░░░░░░░░░░
░░░░░ ░░░░ ░░░░░░░░░░ ░░░	░░░░░░░░░ ░░░░░░░░░░░░░░░░░	░░░░░░░░░░
░░░░░░░ ░░░░░ ░░░░░ ░░░ ░░░	░░░░░░░░░ ░░░░░░░░░░░░░░░░░	░░░░░░░░░░

See the detail of Charles Leykum's experience

Training of Charles Leykum

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

See the detail of Charles Leykum's experience

Connections

1st degree connections

1st degree companies

Male

Female

Members of the board

Executives

See the personal network

Linked companies

Private companies	17
Soros Fund Management LLC Soros Fund Management LLC Investment ManagersFinance SFM aims to protect and grow Open Society’s resources. The firm invests globally in a wide range of strategies and asset classes, including public equities, fixed income, commodities, foreign exchange, alternative assets and private equity.	Finance
Niko Resources Ltd. Niko Resources Ltd. Oil & Gas ProductionEnergy Minerals Engages in the exploration, development and production of oil and natural gas	Energy Minerals
The Trustees of Columbia University in The City of New York The Trustees of Columbia University in The City of New York Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Harvard University Harvard University Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Goldman Sachs & Co. LLC Goldman Sachs & Co. LLC Investment Banks/BrokersFinance Provides brokerage services	Finance
CSL Capital Management LLC CSL Capital Management LLC Investment ManagersFinance CSL Capital invests companies in the United States. The firm focuses on companies operating in the fields of energy services, equipment and technology. It provides financing for growth stage capital requirements with an investment size ranging from USD 10 to 100 million.	Finance
PyraMax Ceramics LLC PyraMax Ceramics LLC Oilfield Services/EquipmentIndustrial Services Produces ceramic granules used in the oil and gas industry	Industrial Services
United Oilfield Services Sp zoo United Oilfield Services Sp zoo Contract DrillingIndustrial Services Provides seismic, drilling and well completion services in oil and gas exploration and production	Industrial Services
Mission Well Services LLC Mission Well Services LLC Oilfield Services/EquipmentIndustrial Services Provides hydraulic fracturing and coiled tubing services to oil and gas exploration industry	Industrial Services
Harvard Business School Harvard Business School Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Independence Oilfield Chemicals LLC Independence Oilfield Chemicals LLC Construction MaterialsNon-Energy Minerals Specializes in stimulation of chemical and cementing solutions	Non-Energy Minerals
Ranger Energy Services LLC Ranger Energy Services LLC Contract DrillingIndustrial Services Provides oilfield services	Industrial Services
Ranger Energy Services, Inc. Ranger Energy Services, Inc. Oilfield Services/EquipmentIndustrial Services Provides well site services to the oil and gas industry	Industrial Services
BJ Services, Inc. BJ Services, Inc. Oilfield Services/EquipmentIndustrial Services Provides hydraulic fracturing and cementing services	Industrial Services
Sentinel Energy Services, Inc. Sentinel Energy Services, Inc. Finance/Rental/LeasingFinance Operates as a special purpose company	Finance
Ranger Services LLC Ranger Services LLC Finance/Rental/LeasingFinance Engages in residential mortgage lending and real estate settlement services	Finance
Raptor Lift Solutions LLC Raptor Lift Solutions LLC Industrial MachineryProducer Manufacturing Operates as a oilfield services company that provides artificial lift technologies and services	Producer Manufacturing