![Les Thomas](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Les Thomas
Chairman at
JERSEY OIL AND GAS PLC
Net worth: 200 098 $ as of 2026-05-30
Profile
Leslie James Thomas is currently the Non-Executive Chairman at Jersey Oil & Gas Plc since 2021.
He is also a Non-Executive Director at Avingtrans Plc since 2014.
Additionally, he holds positions as an Independent Director at Repsol Resources UK Ltd., a Director at Ithaca GSA Ltd., and a Director at Ithaca Energy (North Sea) Plc since 2018.
Previously, Mr. Thomas served as the President, CEO & Executive Director at Ithaca Energy (E&P) Ltd. from 2013 to 2020.
He was also the Deputy Chief Executive Officer at Production Services Network Ltd. in 2011 and 2012.
From 2013 to 2020, he held the position of Chief Executive Officer & Director at Ithaca Energy (UK) Ltd. He served as an Executive Director at John Wood Group Plc from 2004 to 2020.
Additionally, he held various director positions at Ithaca Petroleum Ltd., Ithaca Gamma Ltd., Wood Group Ltd., Ithaca Epsilon Ltd., Ithaca Alpha (N.I.) Ltd., Ithaca Minerals (North Sea) Ltd., Ithaca Energy Holdings (UK) Ltd., and Ithaca Energy Developments UK Ltd. from 2013 to 2020.
He was also the President at Marathon Oil U.K.
LLC.
Mr. Thomas completed his undergraduate and graduate degrees at Heriot-Watt University.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
AVINGTRANS PLC 0.05% | 2025-05-30 | 16,000 ( 0.05% ) | 146 657 $ | 2026-05-30 |
JERSEY OIL & GAS PLC 0.13% | 2025-12-30 | 43,000 ( 0.13% ) | 53 441 $ | 2026-05-30 |
Les Thomas active positions
| Companies | Position | Start |
|---|---|---|
| AVINGTRANS PLC | Director/Board Member | - |
| JERSEY OIL AND GAS PLC | Chairman | 2021-11-21 |
Ithaca GSA Ltd.
 Ithaca GSA Ltd. Miscellaneous Commercial ServicesCommercial Services Provides business support services | Director/Board Member | - |
Repsol Resources UK Ltd.
 Repsol Resources UK Ltd. Integrated OilEnergy Minerals Operates as an oil and gas exploration company | Director/Board Member | - |
Ithaca Energy (North Sea) Plc
 Ithaca Energy (North Sea) Plc Integrated OilEnergy Minerals Engages in extracting crude oil | Director/Board Member | 2018-04-22 |
Denholm Energy Services Ltd.
 Denholm Energy Services Ltd. Miscellaneous Commercial ServicesCommercial Services Provides energy logistics, asset maintenance and chemical cleaning services | Director/Board Member | - |
Former positions of Les Thomas
| Companies | Position | End |
|---|---|---|
Ithaca Energy (UK) Ltd.
 Ithaca Energy (UK) Ltd. Oil & Gas ProductionEnergy Minerals Engages in oil and gas exploration services | Chief Executive Officer | 2020-08-23 |
| ITHACA ENERGY INC | Chief Executive Officer | 2020-08-23 |
Ithaca Energy Developments UK Ltd.
 Ithaca Energy Developments UK Ltd. Oilfield Services/EquipmentIndustrial Services Provides development and operational services to oil and gas industry | Director/Board Member | 2020-07-31 |
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Training of Les Thomas
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
56
1st degree connections
20
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 20 |
|---|---|
John Wood Group Plc
 John Wood Group Plc Miscellaneous Commercial ServicesCommercial Services Provides technical consulting and engineering services | Commercial Services |
Ithaca Energy (E&P) Ltd.
 Ithaca Energy (E&P) Ltd. Integrated OilEnergy Minerals Provides oil and gas exploration and development services | Energy Minerals |
Ithaca Petroleum Ltd.
 Ithaca Petroleum Ltd. Contract DrillingIndustrial Services Engages in the exploration and development of oil and gas reserves | Industrial Services |
Jersey Oil & Gas Plc
 Jersey Oil & Gas Plc Oil & Gas ProductionEnergy Minerals Engages in exploration, appraisal, development and production of oil and gas | Energy Minerals |
Avingtrans Plc
 Avingtrans Plc Industrial MachineryProducer Manufacturing Provides engineering components and services | Producer Manufacturing |
Marathon Oil U.K. LLC
 Marathon Oil U.K. LLC Contract DrillingIndustrial Services Provides oil and gas exploration, production, and development services | Industrial Services |
Heriot-Watt University
 Heriot-Watt University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Production Services Network Ltd.
 Production Services Network Ltd. Oil & Gas ProductionEnergy Minerals Operates as a holding company with interest in providing brownfield production services | Energy Minerals |
Ithaca Energy (UK) Ltd.
Ithaca Energy (UK) Ltd. Oil & Gas ProductionEnergy Minerals Engages in oil and gas exploration services | Energy Minerals |
Ithaca Gamma Ltd.
 Ithaca Gamma Ltd. Oil & Gas ProductionEnergy Minerals Provides oil and gas exploration services | Energy Minerals |
Wood Group Ltd.
 Wood Group Ltd. Oil & Gas ProductionEnergy Minerals Engages in petroleum and natural gas extraction services | Energy Minerals |
Ithaca Epsilon Ltd.
 Ithaca Epsilon Ltd. Integrated OilEnergy Minerals Engages in extraction crude oil | Energy Minerals |
Denholm Energy Services Ltd.
Denholm Energy Services Ltd. Miscellaneous Commercial ServicesCommercial Services Provides energy logistics, asset maintenance and chemical cleaning services | Commercial Services |
Ithaca Alpha (N.I.) Ltd.
 Ithaca Alpha (N.I.) Ltd. Oil & Gas ProductionEnergy Minerals Owns and operates properties | Energy Minerals |
Ithaca Minerals (North Sea) Ltd.
 Ithaca Minerals (North Sea) Ltd. Miscellaneous Commercial ServicesCommercial Services Provides business support services | Commercial Services |
Repsol Resources UK Ltd.
Repsol Resources UK Ltd. Integrated OilEnergy Minerals Operates as an oil and gas exploration company | Energy Minerals |
Ithaca Energy Holdings (UK) Ltd.
 Ithaca Energy Holdings (UK) Ltd. Financial ConglomeratesFinance Provides investment services | Finance |
Ithaca GSA Ltd.
Ithaca GSA Ltd. Miscellaneous Commercial ServicesCommercial Services Provides business support services | Commercial Services |
Ithaca Energy (North Sea) Plc
Ithaca Energy (North Sea) Plc Integrated OilEnergy Minerals Engages in extracting crude oil | Energy Minerals |
Ithaca Energy Developments UK Ltd.
Ithaca Energy Developments UK Ltd. Oilfield Services/EquipmentIndustrial Services Provides development and operational services to oil and gas industry | Industrial Services |
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