Jonah Energy LLC was created in the spring of 2014 with the acquisition of producing assets within the Jonah Field in Sublette County, Wyoming. We are one of the largest privately-held natural gas producers in the US.

Our private investor group is led by TPG Capital LLC and includes EIG Global Energy Partners and management.

Our vision is to be the industry's most successful acquisition and development company by consistently identifying and executing attractive acquisitions, delivering exceptional operating performance, and achieving outstanding financial outcomes.

we create exceptional value for our investors and our people by acquiring oil and gas fields with unappreciated potential, then mobilizing the capital and talent necessary to fully realize that potential.

Tom Hart, Chief Executive Officer

Jonah Field was a world-class discovery, and the Jonah energy team comes to work every day with the goal of maximizing the field's productive potential.

Michael Park, Vice President of Operations

We embrace and demonstrate a PASSION for Jonah Energy and our VISION of its future.

We are a high PERFORMANCE organization, delivering on our promises and driving continuous improvement through teamwork and innovation.

We conduct ourselves with INTEGRITY in our dealings with our stakeholders and each other.

We apply COMMERCIALITY in our decisions, deploying capital in the most efficient and effective manner.

We possess a focused AMBITION to strive and succeed on a personal and professional level.

We achieve our goals in a thoughtful and disciplined manner through the EMPOWERMENT of our people.

We leverage our individual strengths through COLLABORATION with each other to produce rapid and effective decisions.

We RESPECT each other and our communities.

We are committed to building a company that is sustainable and enduring, through a culture that embraces our core values.

Rory O’Byrne, Vice President and Chief Human Resources Officer

Thomas M. Hart III

Chief Executive Officer

Bio ›

Jonah Energy - Thomas M. Hart III

L. Craig Manaugh

President and Chief Operating Officer

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Jonah Energy - L. Craig Manaugh

Patrick Welch

Vice President and Chief Financial Officer

Bio ›

Jonah Energy - Patrick Welch

C. Mark Brannum

Vice President, General Counsel and Secretary

Bio ›

Jonah Energy - C. Mark Brannum

Rory O’Byrne

Vice President and Chief Human Resources Officer

Bio ›

Jonah Energy - Rory O’Byrne

Michael Park

Vice President of Operations

Bio ›

Jonah Energy - Michael Park


Vice President of Marketing and Midstream

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Jonah Energy - BRIAN DAY

1st Anniversary Celebration - Pinedale

The Pinedale Half-Marathon - Pinedale

The Habitat for Humanity - Denver

Septembeard 2015 - Denver