2210 Lakeside Dr, Orlando, FL 32803 +1 (929) 681-1835
info@tullowoilgas.com Investor Relations
About Tullow Oil and Gas

About Tullow Oil & Gas

Who We Are

A Trusted Leader in Global Energy

Tullow Oil and Gas is one of the most respected independent oil and gas exploration and production companies in the industry. Founded with the mission of discovering and developing world-class hydrocarbon resources, we have grown from a small exploration company into a significant operator with production assets, extensive licences, and deep community ties across the Americas and Europe.

Our headquarters are located at 2210 Lakeside Drive, Orlando, Florida, from where our leadership team directs a global workforce of over 1,200 professionals. We are listed on the London Stock Exchange and maintain a firm commitment to transparency, governance, and shareholder value.

Beyond oil and gas extraction, Tullow is a development partner in the regions where we operate. We create employment, build local supply chains, fund education and community programmes, and work with governments to ensure that the benefits of resource development flow to local communities.

Contact Our Team
Tullow Operations
What Drives Us

Mission, Vision & Values

Our Mission

To find, develop, and produce oil and gas responsibly, creating value for shareholders, governments, and host communities through safe, efficient, and sustainable operations.

Our Vision

To be the world’s most trusted independent oil and gas company, recognised for our technical excellence, responsible operations, and the lasting positive impact we have on the lives of people across our operating regions.

Our Promise

We promise to operate with integrity in everything we do — placing safety first, treating all people with respect, protecting the environment, and being transparent with our stakeholders at all times.

Our Core Values

Safety

The safety and wellbeing of our people, contractors, and surrounding communities is our highest priority. We operate a zero-harm culture.

Integrity

We conduct our business with honesty and transparency, upholding the highest ethical standards and complying with all applicable laws and regulations.

Responsibility

We take our environmental and social responsibilities seriously, minimising our footprint and maximising the positive impact we have on host communities.

Innovation

We embrace new technologies and ideas that improve safety, efficiency, and recovery rates, keeping Tullow at the forefront of responsible energy development.

Leadership

Board & Executive Management

Our leadership team brings together world-class expertise in oil and gas exploration, finance, operations, and governance.

David Trung Phan
David Trung Phan
Chief Executive Officer

25+ years international E&P experience. Previously held senior leadership roles at major international oil companies across the Americas, Europe, and Asia before joining Tullow.

Richard Osei-Mensah
Richard Osei-Mensah
Chief Financial Officer

20 years in energy sector finance. CPA and MBA from Wharton. Expert in capital markets, debt restructuring, and investor relations for resource companies.

Amara Diallo
Amara Diallo
Chief Operating Officer

Petroleum engineer with 18 years of offshore and onshore production operations experience. MSc from Imperial College London. Leads all asset operations across the Group’s global portfolio.

James Kwame Asante
James Kwame Asante
EVP, Exploration

Geologist and exploration strategist with 22 years focused on deepwater and unconventional basins. Led the discovery teams behind Tullow’s Gulf of Mexico and North Sea discoveries.

Our Journey

Company Milestones

1985

Company Founded

Tullow Oil and Gas established with an initial focus on oil exploration in Ireland and the United Kingdom.

1999

Americas Expansion

Strategic pivot to focus on the Gulf of Mexico and North American basins as primary exploration and production targets.

2007

Gulf of Mexico Discovery

Major deepwater field discovered in the Gulf of Mexico — one of the largest independent operator finds in the region.

2010

Deepwater Production Begins

First oil achieved at the deepwater Gulf of Mexico field, delivering significant revenue and marking a transformative milestone.

2012

North Sea Expansion

Major acquisition of producing assets in the UK North Sea, establishing a strong European production base.

2018

Permian Basin Development

Successful ramp-up of Permian Basin operations in West Texas, further strengthening the onshore production base.

2025

Sustainable Growth Strategy

Launch of updated ESG framework and net-zero commitment pathway, reinforcing our long-term sustainable development agenda.

Partnering for a Sustainable Energy Future

We are committed to responsible oil and gas development that creates long-term value for our shareholders, host governments, and the communities where we operate.