XOM Exxon Mobil Corporation

ExxonMobil Announces Tom Walters to Retire, Neil Duffin to be President of ExxonMobil Production Company; Liam Mallon to be President of ExxonMobil Development Company

Tom Walters, president, ExxonMobil Production Company, has announced his intention to retire after more than 38 years of service.

Neil Duffin, currently president of ExxonMobil Development Company, has been appointed by the Exxon Mobil Corporation (NYSE:XOM) board of directors to be president of ExxonMobil Production Company and elected to be a vice president of the corporation.

Liam Mallon, currently executive vice president of ExxonMobil Development Company, has been elected president of ExxonMobil Development Company by its board of directors. All changes are effective Jan. 1.

Walters joined Exxon USA in 1978 in Los Angeles and has held a variety of technical and managerial positions in production, operations, development and global services. In 1999, he was appointed vice president for Africa for ExxonMobil Development Company and in 2002, vice president, United States, for ExxonMobil Production Company.

He was appointed president, ExxonMobil Global Services Company in 2005 prior to becoming executive vice president of ExxonMobil Development Company in 2007. He became president of ExxonMobil Gas & Power Marketing Company in 2009 and was appointed to his current role as president of ExxonMobil Production Company in 2013.

Walters was born in Hammond, Indiana, and is a graduate of Vanderbilt University with a bachelor’s degree in mechanical engineering and from Texas A&M University with a master’s degree in ocean engineering.

Duffin joined Mobil in 1979 in Aberdeen, Scotland, and has held a variety of managerial positions in production, operations and development.

In 1992, he was named producing advisor for Europe and Africa based in Fairfax, Virginia. In 1995, he moved to Aberdeen, Scotland, as operations and northern North Sea manager, and in 1998, he was named senior vice president, Mobil Oil Indonesia, with responsibility for exploration and producing operations throughout the country.

Duffin became vice president, ExxonMobil Development Company for Russia/Caspian Sea and the Middle East in 1999. He became vice president of ExxonMobil Production Company for Africa in 2004. He became executive vice president of ExxonMobil Development Company in 2006 and was elected as president of ExxonMobil Development Company in 2007.

Duffin was born in St. Andrews, Scotland. He is a graduate of Heriot Watt University, Edinburgh, UK, with a bachelor’s degree in mechanical engineering.

Mallon joined Mobil in 1990 in Aberdeen, Scotland, and held a variety of progressively senior positions before he became operations manager in Nigeria in 1998. He moved to Australia in the same capacity in 2000, and in 2003 relocated to Houston where he was planning manager for ExxonMobil Production Company.

In 2004, Mallon was appointed president of ExxonMobil Canada, and in 2006 he was appointed director and chairman of ExxonMobil subsidiaries in Malaysia. He was made vice president of engineering for ExxonMobil Production Company in 2009 and vice president for Africa in 2012. He was appointed to his current position as executive vice president of ExxonMobil Development Company in 2014.

Mallon was born in Drogheda, Ireland, and is a graduate of Trinity College in Dublin with a bachelor’s degree in mechanical engineering and from Heriot Watt in Edinburgh with a master’s in petroleum engineering.

About ExxonMobil

ExxonMobil, the largest publicly traded international oil and gas company, uses technology and innovation to help meet the world’s growing energy needs. ExxonMobil holds an industry-leading inventory of resources and is one of the world’s largest integrated refiners, marketers of petroleum products and chemical manufacturers. For more information, visit www.exxonmobil.com or follow us on Twitter www.twitter.com/exxonmobil.

EN
02/12/2016

Underlying

To request access to management, click here to engage with our
partner Phoenix-IR's CorporateAccessNetwork.com

Reports on Exxon Mobil Corporation

Exxon Mobil Corp: 1 director

A director at Exxon Mobil Corp sold 3,230 shares at 149.175USD and the significance rating of the trade was 55/100. Is that information sufficient for you to make an investment decision? This report gives details of those trades and adds context and analysis to them such that you can judge whether these trading decisions are ones worth following. Included in the report is a detailed share price chart which plots discretionary trades by all the company's directors over the last two years clearl...

Stephane Foucaud
  • Stephane Foucaud

AUCTUS ON FRIDAY - 16.01.2026

AUCTUS PUBLICATIONS ________________________________________ Condor Energies (CDR CN)C; Target price of C$5.60 per share: Uzbekistan production boost: two new wells onstream in February – The first horizontal well is now onstream. Only the shallower interval has been tested to date, delivering 3.6 mmcf/d. The full ~1 km lateral — including the zones with the strongest gas‑show responses — has not yet been accessed. A larger‑diameter coiled‑tubing unit than is currently available is required to d...

Stephane Foucaud
  • Stephane Foucaud

AUCTUS ON FRIDAY - 07/11/2025

AUCTUS PUBLICATIONS ________________________________________ ADX Energy (ADX AU)C; Target price of A$0.30 per share: Busy 1H26 – 3Q25 WI sales averaged 251 boe/d, in line with expectations. The company held ~A$4 mm in cash at the end of September, also in line with forecasts. A busy operational period is anticipated in 1H26. Flow testing at Welchau is scheduled to recommence in January, starting with fluid sampling and pressure measurements in the already perforated Reifling formation—the shallo...

Stephane Foucaud
  • Stephane Foucaud

AUCTUS ON FRIDAY - 03/10/2025

AUCTUS PUBLICATIONS ________________________________________ Arrow Exploration (AXL LN/CN)C; Target price of £0.40 per share: Dry hole at Mateguafa Oeste but three more prospects to drill – The Mateguafa Oeste was water wet. Our ReNAV for the well was £0.09 per share. We did not carry any production from this prospect in our cash flow forecast. The rig will now move to Mateguafa Attic where the Mateguafa 5 vertical well will be drilled in November. This is a low risk well that is a step out to M...

Exxon Mobil Corporation: Key facts and statistics - LTM June 2025

A summary company profile, detailing Exxon Mobil Corporation’s business operations and financial highlights.

ResearchPool Subscriptions

Get the most out of your insights

Get in touch