Greg Matlock - EY Americas Oil & Gas and Chemicals Tax Leader; EY Americas Metals & Mining Tax Leader | EY - Canada

Greg Matlock - EY Americas Oil & Gas and Chemicals Tax Leader; EY Americas Metals & Mining Tax Leader | EY - Canada EY Logo Insights Transformation Realized™ Long-term value Sustainability Trust Technology Purpose Services Strategy by EY-Parthenon Economic Advisory Strategy Consulting Corporate Strategy Transaction Strategy and Execution Commercial Strategy Turnaround and Restructuring Consulting Industry Strategy Current insolvency assignments Consulting Customer Experience by EY Studio+ Cybersecurity consulting services Data and decision intelligence Risk consulting services - Our latest thinking Supply chain and operations Technology leaders’ agenda People Advisory Services Change management and experience services HR Transformation Services Integrated workforce mobility Learning and development consulting Recognition and reward advisory Workforce analytics Transactions and Corporate Finance by EY-Parthenon Strategy by EY-Parthenon Corporate Finance Divestment Strategy M&A Advisory M&A Integration M&A AI-powered Technology Capital Allocation Strategy Assurance Services Audit Climate change and sustainability services Financial accounting advisory services Forensic and Integrity Services Private client audit experience IFRS Technology Risk Tax Tax planning Tax function operations Tax policy and controversy Global trade Global tax reform Tax compliance Transaction tax Tax accounting Tax services: Designed for private Law Labor and employment law Tax controversy services Legal operations Corporate and commercial law Integrated workforce mobility Technology EY.ai – a Unifying Platform Tax technology M&A AI-powered Technology Technology transformation - Our latest thinking Alliances Managed Services Tax Managed Services EY Private EY Private client experience Family enterprise IPO Entrepreneurship Sustainability Climate change and sustainability services Sustainable finance Supply chain transformation Climate and decarbonization Environment, Health and Safety (EHS) Services Industries Industrials & Mobility Aerospace and defense Automotive Chemicals and advanced materials Future mobility Industrial products Transportation Consumer Products: creating new relationships with customers Consumer Products: creating new relationships with customers Transforming Retail Future consumer index Energy & Resources Metals & Mining Oil & Gas and Chemicals Power & utilities sector | Insights, trends & services Financial services Banking & Capital Markets Insurance Wealth & Asset Management Sustainable finance Fintech and ecosystems Government & Public Sector Data and technology Human services Infrastructure Government & Public Sector Modern Government Academy Public sector modernization Private equity Private equity value creation services Exit readiness PE deal origination Digital in private equity Health Life Sciences Health Real estate, Hospitality & Construction Technology, media & entertainment, and telecommunications Technology, media & entertainment, and telecommunications Careers What you can do here Careers in Assurance Careers in Consulting Careers in EY-Parthenon Strategy, Transactions, Corporate Finance Careers in Tax Careers in People Advisory Services Careers in Financial Services Careers in Core Business Services Careers in Global Delivery Services What it's like to work here Diversity, equity and inclusiveness Personalized career development Flexibility and mobility People stories How to join us How we hire Interview tips What we look for Alumni – Stay part of something special Job search Experienced professionals Students and entry-level Contract opportunities Talent community About us Our purpose Our people Our values Newsroom Locations Connect with us Corporate responsibility Insights\r\n"}}" id="rich-text-844c6f069013" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> Insights Read more Read less Asking the better questions that unlock new answers to the working world's most complex issue.

\r\n"}}" id="rich-text-30152efaea50" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> Asking the better questions that unlock new answers to the working world's most complex issue.

Read more Read less Explore See more

\r\n"}}" id="rich-text-274cad65b231" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> See more

Read more Read less See more

\r\n"}}" id="rich-text-69766e08b76d" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> See more

Read more Read less Spotlight\r\n"}}" id="rich-text-498a668f2b52" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> Spotlight Read more Read less Trade and tariffs

\r\nAI insights

\r\nCEO agenda

\r\nCFO agenda

\r\nEY Center for Board Matters

\r\nPodcasts

\r\nWebcasts

\r\nCase studies

\r\nOperations leaders

\r\nTechnology leaders

\r\nTax leaders’ agenda

\r\n"}}" id="rich-text-f20f961e122e" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> Trade and tariffs

AI insights

CEO agenda

CFO agenda

EY Center for Board Matters

Podcasts

Webcasts

Case studies

Operations leaders

Technology leaders

Tax leaders’ agenda

Read more Read less Services\r\n"}}" id="rich-text-9b58eeb31991" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> Services Read more Read less EY helps clients create long-term value for all stakeholders. Enabled by data and technology, our services and solutions provide trust through assurance and help clients transform, grow and operate.

\r\n"}}" id="rich-text-d54bd7a8e411" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> EY helps clients create long-term value for all stakeholders. Enabled by data and technology, our services and solutions provide trust through assurance and help clients transform, grow and operate.

Read more Read less Explore See more

\r\n"}}" id="rich-text-f94c195e3720" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> See more

Read more Read less Spotlight\r\n"}}" id="rich-text-e538f8c85aaa" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> Spotlight Read more Read less EY.ai - A unifying platform

\r\nStrategy, transaction and transformation consulting

\r\nTechnology transformation

\r\nTax function operations

\r\nClimate change and sustainability services

\r\nEY Nexus: business transformation platform
\r\n

\r\n"}}" id="rich-text-4f30c3d89108" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> EY.ai - A unifying platform

Strategy, transaction and transformation consulting

Technology transformation

Tax function operations

Climate change and sustainability services

EY Nexus: business transformation platform

Read more Read less Industries\r\n"}}" id="rich-text-d10f03f2a35e" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> Industries Read more Read less Discover how EY insights and services are helping to reframe the future of your industry.
\r\n

\r\n"}}" id="rich-text-8acc0216a927" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> Discover how EY insights and services are helping to reframe the future of your industry.

Read more Read less Explore See more

\r\n"}}" id="rich-text-40051e080ab7" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> See more

Read more Read less Case studies\r\n"}}" id="rich-text-89fa1eb11697" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> Case studies Read more Read less

Banking & Capital Markets

How technology is reducing trade finance risk and compliance costs

23 Jan 2024EY Canada

Energy resources

How EY Compliance IQ modernized commercial compliance for Trans Mountain

07 Oct 2025EY Canada

AI

How EY is unlocking the next iteration of GenAI advancement with EYQ

24 Feb 2025EY Canada

See all

\r\n"}}" id="rich-text-8cc9ec63d21c" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> See all

Read more Read less Careers\r\n"}}" id="rich-text-d279583fcb94" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> Careers Read more Read less We bring together extraordinary people, like you, to build a better working world.

\r\n"}}" id="rich-text-c18fb6528af8" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> We bring together extraordinary people, like you, to build a better working world.

Read more Read less Explore See more

\r\n"}}" id="rich-text-f851c469df1c" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> See more

Read more Read less Spotlight\r\n"}}" id="rich-text-3a363a987196" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> Spotlight Read more Read less Experienced professionals

\r\nEY-Parthenon careers

\r\nStudent and entry level programs

\r\nTalent community

\r\n"}}" id="rich-text-f8f9cc8eb69c" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> Experienced professionals

EY-Parthenon careers

Student and entry level programs

Talent community

Read more Read less About us\r\n"}}" id="rich-text-cf8b20f5b02a" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> About us Read more Read less At EY, our purpose is building a better working world. The insights and services we provide help to create long-term value for clients, people and society, and to build trust in the capital markets.

\r\n"}}" id="rich-text-52778032a4f6" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> At EY, our purpose is building a better working world. The insights and services we provide help to create long-term value for clients, people and society, and to build trust in the capital markets.

Read more Read less Explore See more

\r\n"}}" id="rich-text-9f7f68448a0a" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> See more

Read more Read less Top news\r\n"}}" id="rich-text-5ea8ce409717" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> Top news Read more Read less

Press release

Impact Report 2025 highlights EY Canada’s AI transformation and sustainability across operations

04 Dec 2025Jenna Ng Liet Hing

Press release

Isaac Langleben and Jacqueline Prehogan are Canada’s EY Entrepreneur Of The Year® 2025

27 Nov 2025Jenna Ng Liet Hing

Press release

EY Canada wins 2025 Canada (SI) Partner of the Year

12 Nov 2025Jenna Ng Liet Hing

Search search

close search See all results for ' '

No results have been found

Topics

See All

General

See All

People

See All

Recent Searches

Trending

Beyond compliance: elevating safety standards in underground mining Explore how mining leaders can elevate underground safety standards, linking EHS programs to profitability and operational excellence. 12 Dec 2025 Mining & Metals Reinforce loyalty program safeguards, stay ahead of cyber threats Cyber criminals are targeting loyalty programs. Retailers must act now to close security gaps. Download report. 08 Dec 2025 Consumer Products What makes today’s climate leaders tomorrow’s business leaders? The 2025 EY Global Climate Action Barometer highlights how proactive climate action can present a valuable strategic opportunity for companies. Read now. 06 Nov 2025 Climate change and sustainability services My EY My EY Select your location

Local sites “

As the energy mix continues to evolve, understanding the tax implications of investments can help match capital providers with development projects and enable the energy footprint of the future.

Greg Matlock

EY Americas Oil & Gas and Chemicals Tax Leader; EY Americas Metals & Mining Tax Leader

Tax-focused energy leader with legal and transactions background. Experience across oil and gas, mining and metals, power and utilities, renewables and more.

Send e-mail to Greg Matlock Open LinkedIn profile of Greg Matlock Areas of focus Energy and resources Power & Utilities Tax Tax function operations Office Houston, TX, United States Based in Houston, Greg serves as Americas Tax Leader for the Oil & Gas and Chemicals as well as the Metals & Mining sectors. He helps energy companies evaluate and capitalize on complex challenges and opportunities across their tax and finance function.

With a background in law and strategy and transactions, Greg’s focus is on supporting companies to improve the sustainability and efficiency of operations through investments. He has advised clients on projects that include carbon capture use and sequestration, hydrogen, geothermal, renewable natural gas, wind, solar, and metal and metal-related investments. He also helps capital providers and funds evaluate and structure their energy investments.

Greg has a Bachelor’s degree in Finance from Michigan State University, a Master’s in Taxation Law from the New York University School of Law and a Juris Doctor qualification from Western Michigan University’s Thomas M. Cooley Law School. He writes and speaks regularly on energy tax and transactions for industry publications and conferences.

How Greg is shaping the future with confidence “Energy companies face increasingly complex issues in their tax and finance functions. As well as rising resource, cost and risk pressures, they must navigate fast-changing regulatory, social and market forces in a more volatile world.

I’m proud to support EY clients through these challenges by bringing clarity to complex issues and helping them leverage tax and finance opportunities to create value today and into the future.”

Read more Read less

Greg's latest thinking

Switch to previous page Switch to next page

Contact Greg Send e-mail to Greg Matlock Open LinkedIn profile of Greg Matlock EY logo \r\nConnect with us
\r\n\r\nOur locations\r\nMy EY\r\nSite map\r\nLegal and privacy\r\nAccessibility\r\n\r\n"}}" id="rich-text-58e84fbb4c35" data-up-is="rich-text" data-up-translation-read-more="Read more" data-up-translation-read-less="Read less" data-up-translation-aria-label-read-more="Read more button, press enter to activate, or use Up arrow key to learn more about this content" data-up-translation-aria-label-read-less="Read less button, press enter to activate, or use Up arrow key to learn more about this content" class="up-rich-text cmp-text" data-up-analytics="rich-text"> Connect with us
Our locationsMy EYSite mapLegal and privacyAccessibility Read more Read less Open LinkedIn profile Open Youtube profile EY refers to the global organization, and may refer to one or more, of the member firms of Ernst & Young Global Limited, each of which is a separate legal entity. Ernst & Young Global Limited, a UK company limited by guarantee, does not provide services to clients.

\r\n"}}" class="cmp-text"> EY refers to the global organization, and may refer to one or more, of the member firms of Ernst & Young Global Limited, each of which is a separate legal entity. Ernst & Young Global Limited, a UK company limited by guarantee, does not provide services to clients.

Welcome to EY ca (en) You are visiting EY ca (en) ca en