Our Board

The Board is responsible for the governance of AGL. The role of the Board is to safeguard AGL’s interests and to protect and foster sustainable value creation while taking into account the reasonable interests of shareholders, employees, customers, the communities in which AGL operates and other relevant stakeholders.

Non-Executive Director since October 2016 and Chairman since 22 April 2021.

Age 66. BSc, ARSM

Current Directorships: Director of Karoon Energy Limited (commenced 1 October 2020), Non-Executive Director of Board of Aurelia Minerals Limited (commenced 13 September 2021), Council Member of the Australia PNG Business Council, Chairman of the Oil Search Foundation, Hela Provincial Health Authority, the National Football Stadium Trust in Papua New Guinea.

Former Directorships of listed companies over the past 3 years: Managing Director of Oil Search Limited from 28 October 1994 to 25 February 2020.

Experience: Peter was Managing Director of Oil Search Limited from 28 October 1994 until 25 February 2020, overseeing its development into a major Australian Securities Exchange-listed company. Peter has extensive worldwide experience in the oil and gas industry, holding various senior technical, managerial and board positions in a number of listed and government-owned bodies.

Non-Executive Director since 1 July 2020.

Age 63. BCom, BAcc, CA

Current Directorships: Director of Pacific Smiles Group Limited (commenced 18 October 2019) and Abacus Property Group Limited (commenced 1 July 2021).

Former Directorships of listed companies over the past 3 years: Nil.

Experience: Mark has over 35 years’ experience as a Finance Executive. Mark was CFO at ASX listed Scentre Group Limited from its formation in July 2014 until his retirement in April 2019. Prior to the formation of Scentre Group Limited, Mark was the Deputy Group CFO of Westfield Group for 11 years.

Mark's executive career includes acting as CFO and an Executive Director at three listed entities in Real Estate (Westfield and Scentre Group – 16 years) and Insurance and diversified Financial Services (Liberty Life, South Africa and Manulife Financial, Toronto – 20 years). Mark has extensive experience in overseeing global and local finance and IT teams.


Non-Executive Director since 1 January 2022.

Age 58. MCom, Masters in Finance

Current Directorships: Nil.

Former Directorships of listed companies over the past 3 years: Nil.

Experience: Graham has over 30 years’ experience in the international energy industry, with executive roles in the UK, South America, New Zealand and Asia. His experiences have been across the energy chain and under different political, economic and regulatory regimes. He has a strong financial background and extensive experience in strategy and business development.

During his executive career Graham has served as Group CFO at Sembcorp Industries, Singapore, CFO and COO at Contact Energy, New Zealand, and in various senior executive roles for close to two decades at BG Group, primarily in the UK and South America.

Non-Executive Director since March 2016.

Age 55. BCom, Grad Cert (Mgmt), GAICD

Current Directorships: Chair of Bendigo and Adelaide Bank Limited (Director from 5 July 2011 and Chair from 29 October 2019) and Director of Qantas Airways Limited (commenced 29 August 2013). Member of Brighton Grammar School Council.

Former Directorships of listed companies over the past 3 years: Jacqueline was a director of Australian Foundation Investment Company Ltd from 31 July 2013 until 18 January 2019.

Experience: Jacqueline enjoyed a successful executive career prior to becoming a full-time company director in 2011. Jacqueline has extensive experience in the areas of information technology, telecommunications and marketing. Jacqueline worked with Ericsson for more than 20 years in finance, marketing and sales and in leadership roles in Australia, Sweden, the UK and the Middle East including as Managing Director of Ericsson UK/Ireland, Saudi Arabia and Australia/NZ.

Managing Director and CEO (appointed 22 April 2021). Formerly a Non-Executive Director (September 2012 - April 2021) and Chairman (27 September 2017 - April 2021).

Age 64. MBA, BMET, FAus IMM

Current Directorships: Chairman of BIS Industries Limited and Member of CSIRO Energy Advisory Council. Director of the Future Battery Industry Collaborative Research Centre.

Former Directorships of listed companies over the past 3 years: Nil.

Experience: Graeme has extensive experience in establishing and operating large capital projects including in energy intensive industries. He was previously Managing Director of Broadspectrum Limited and Managing Director of Lihir Gold Limited. He has also held a number of senior executive positions in a 30 year career with the BHP Group.

Non-Executive Director since May 2019.


Current Directorships: Chair of NSW Ports and the Sydney Desalination Plant group companies. Director of The Housing Connection.

Former Directorships of listed companies over the past 3 years: Patricia was a director of APA Group from 1 January 2011 to 8 March 2019.

Experience: Patricia has 40 years’ experience in the Australian energy sector with particular focus on matters of market design, industry governance and regulatory reform. She was previously the Chair of Essential Energy, a director of Macquarie Generation and Transgrid, CEO of the Gas Market Company from 2001 to 2008 and a member of the Gas Market Leaders Group representing gas market operators from 2005 to 2010. In these roles, she was a key participant in the Council of Australian Government’s National Energy Reform, a major outcome of which was the establishment of the Australian Energy Market Operator (AEMO), of which she was a Director (2009 to 2011).

Non-Executive Director since September 2016.


Current Directorships: Chair HBF Health Limitied (commenced 4 May 2022), Chair of Zip Co Limited (commenced 1 February 2021), DDH1 Limited (commenced 8 February 2021), the Committee for Economic Development of Australia and the UWA Business School Advisory Board. Director of Keystart Loans Group

Former Directorships of listed companies over the past 3 years: Diane was a director of Wesfarmers Limited from August 2009 to 12 November 2020.

Experience: Diane has extensive Australian and international experience in banking and finance, technology, and strategic and management consulting. This includes as a former partner at McKinsey & Company, and Group Executive IT and Operations, Westpac Banking Corporation.

Non-Executive Director since 1 March 2022.

Age 52. BEc(Hons), GradDip(AppFin), GAICD

Current Directorships: Director of Essential Energy, Eco Markets Australia, Niche Environment and Heritage, Sunwater, and an advisory Board member for Centacare (a Not For Profit disability and family services provider). Ms Sullivan is also an independent member of Queensland’s Hydrogen Taskforce.

Former Directorships of listed companies over the past 3 years: Nil.

Experience: Vanessa is an experienced non-executive director and executive in the energy, low emissions, sustainability and water sectors. She has over 20 years’ commercial, financial and strategy experience working with both government and private sector organisations.  Previous roles include senior positions in energy and water market reforms and low emission project developments.  Vanessa has also held non executive director roles with Energex and the Smart Energy Council.

Our executive team

Meet our executive team.                                                               

Our commitments

Discover what we stand for as a business.                                                                                               

Our purpose & values

Read about how we bring our purpose and values to life.