HHEX Board of Director

Angelo Acconcia

Board Member
Angelo Acconcia serves as a Senior Managing Director in the Blackstone’s Private Equity Group. Prior to Blackstone, Mr. Acconcia worked at Morgan Stanley’s Investment Banking Division in their Global Energy and Mergers and Acquisitions departments and at the Canadian Imperial Bank of Commerce’s Investment Banking Division. Mr. Acconcia is a member of the Investment Committee for Blackstone Energy Partners II, a $4.5 billion private equity fund dedicated to the energy sector, and also serves as a director of Beacon Oil & Gas, Brix & Harvest, Gavilan Resources, Guidon Energy, Jetta Energy Permian, Primexx, LLOG, Osum Oil Sands, Royal Resources, and Vine Oil & Gas. Mr. Acconcia received an Honors degree in Business from Queen’s University in Canada, where he graduated with First Class Honors.

HHEX Board of Directors

Michael Hillebrand

Board Member
Michael Hillebrand serves as Chief Operations Officer for Huntley & Huntley, Inc, a position he has held since 1998. Prior to Huntley & Huntley, Mr. Hillebrand worked for a Manhattan-based power generation company where he was responsible for procuring over 100 Bcf of gas and 2,000 properties through the company’s acquisition and non-operated investment strategies. Mr. Hillebrand serves on the board of directors of the Pennsylvania Independent Oil and Gas Association and is a board member of Allegheny Counties Energy & Environment Committee.

HHEX Board of Directors

John Lee

Board Member
John Lee serves as an Associate in Blackstone’s Private Equity Group. Prior to Blackstone, Mr. Lee was an associate at TPG Capital where he was involved in the analysis and execution of private equity investments in a variety of sectors and was an Investment Banking Analyst at Merrill Lynch. Mr. Lee received a B.S. in Mathematical & Computational Science, a B.A. in Economics from Stanford University, and received his MBA from Harvard Business School.

HHEX Board of Directors

Keith Mangini

Board Member, Chairman
Keith Mangini serves as President and Chief Executive Officer of Huntley & Huntley, Inc., a position he has held since 1995. Mr. Mangini joined Huntley & Huntley in 1978 as a Staff Geologist and was promoted to Vice President of the Company in 1986. In 1995, he purchased Huntley & Huntley, Inc. to become its fourth-generation owner, assuming his current role as CEO and President. Mr. Mangini is a licensed geologist in Pennsylvania, a member of the American Association of Petroleum Geologists, the former president of the Pittsburgh Association of Petroleum Geologists, and Chairman of the Board of the YMCA Deer Valley.

HHEX Management Team

Eric Marsh

Board Member
Eric Marsh serves as Chief Executive Officer of Vine Resources. Prior to Vine, Mr. Marsh spent 13 years at Encana Corporation in a number of leadership roles, including Senior Vice President of Encana’s USA Division. Mr. Marsh sits on the Governor’s Task Force for the State of Wyoming Engineering Development and has served on both the University of Wyoming Foundation and the University of Wyoming Engineering Accreditation Board.


Huntley & Huntley Energy Exploration, LLC
501 Technology Drive
Suite 1200
Canonsburg, PA 15317

Main Office Phone #:  724-754-0110
Toll Free #:  1-877-808-4811
HHEX 24-Hour Contact Number:  412-357-4100
If this is an emergency, please dial 911

General Inquiries: questions@HHEnergyCo.com

Owner Inquiries: ownerrelations@HHEnergyCo.com

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