Jeffrey MacDonald

Director/Board Member at

KrisEnergy Holdings Ltd.

Net worth: 189 245 $ as of 31/07/2026

70 year

51 connections

Energy Minerals

Industrial Services

Consumer Services

Profile

Jeffrey Saunders MacDonald was the founder of Caledonia Oil & Gas Ltd. (2003, Chief Executive Officer) and Blackwatch Petroleum Services Ltd. (1995, Chairman & Managing Director).
Mr. MacDonald is also the founder of Highland Energy Holdings Ltd. Current job includes Non-Executive Director at KrisEnergy Holdings Ltd. (2009 - present).
Former jobs include Independent Non-Executive Chairman at Afentra Plc (2021 - 2025), Chairman at Delta Energy, Non-Executive Director at Empire Oil & Gas NL (2013), Director at Remora Energy International LP, Co-Managing Director at First Reserve International Ltd. (2007 - 2009), Director at Hansa Hydrocarbons Ltd., Executive Director at KrisEnergy Ltd. (2017), and Project Manager & Engineer at Conoco, Inc. Education includes an undergraduate degree from the University of Glasgow (1978).

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
AFENTRA PLC 0.08%	13/05/2026	225,000 ( 0.08% )	189 245 $	31/07/2026

Jeffrey MacDonald active positions

Companies	Position	Start
KrisEnergy Holdings Ltd. KrisEnergy Holdings Ltd. Oil & Gas ProductionEnergy Minerals Provides oil and gas exploration services	Director/Board Member	14/04/2010

All active positions of Jeffrey MacDonald

Former positions of Jeffrey MacDonald

Companies	Position	End
AFENTRA PLC	Chairman	04/06/2025
KRISENERGY LTD.	Chief Executive Officer	24/08/2017
EMPIRE OIL & GAS NL	Director/Board Member	22/11/2013
First Reserve International Ltd. First Reserve International Ltd. Investment ManagersFinance Acts as an alternative investment manager	Director of Investments	31/12/2009
Caledonia Oil & Gas Ltd. Caledonia Oil & Gas Ltd. Contract DrillingIndustrial Services Explores and extracts oil and gas	Chief Executive Officer	01/01/2005

See the detail of Jeffrey MacDonald's experience

Training of Jeffrey MacDonald

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

See the detail of Jeffrey MacDonald's experience

Connections

1st degree connections

1st degree companies

Male

Female

Members of the board

Executives

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Linked companies

Private companies	13
Conoco, Inc. Conoco, Inc. Oil Refining/MarketingEnergy Minerals Explores, refines and sells crude oil, natural gas & related lubricants	Energy Minerals
Afentra Plc Afentra Plc Oil & Gas ProductionEnergy Minerals Engages in oil and gas exploration activities	Energy Minerals
University of Glasgow University of Glasgow Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Highland Energy Holdings Ltd Highland Energy Holdings Ltd Oil & Gas ProductionEnergy Minerals Supplies gas	Energy Minerals
Empire Oil & Gas NL Empire Oil & Gas NL Oil & Gas ProductionEnergy Minerals Engages in oil and gas exploration, development and production services	Energy Minerals
Caledonia Oil & Gas Ltd. Caledonia Oil & Gas Ltd. Contract DrillingIndustrial Services Explores and extracts oil and gas	Industrial Services
Delta Energy Delta Energy Alternative Power GenerationUtilities Generates wind power	Utilities
Remora Energy International LP Remora Energy International LP Oil & Gas ProductionEnergy Minerals Explores oil and gas	Energy Minerals
First Reserve International Ltd. First Reserve International Ltd. Investment ManagersFinance Acts as an alternative investment manager	Finance
KrisEnergy Holdings Ltd. KrisEnergy Holdings Ltd. Oil & Gas ProductionEnergy Minerals Provides oil and gas exploration services	Energy Minerals
Hansa Hydrocarbons Ltd. Hansa Hydrocarbons Ltd. Oil & Gas ProductionEnergy Minerals Provides gas exploration	Energy Minerals
Blackwatch Petroleum Services Ltd. Blackwatch Petroleum Services Ltd. Oilfield Services/EquipmentIndustrial Services Operates as a oil and gas company	Industrial Services
KrisEnergy Ltd. KrisEnergy Ltd. Oil & Gas ProductionEnergy Minerals Operates as an upstream oil and gas company	Energy Minerals