Board of Directors

Board of Directors


Michael J. Wieland, President & CEO, Laredo Energy

Michael J. Wieland has more than 20 years experience in the oil and gas industry and energy financial services sector, including serving as Chief Financial Officer and Senior Vice President of Corporate Development for Stonegate Production Company and as Vice President of Corporate Development and Finance at Carrizo Oil & Gas. Prior to that he was a Director for Barclays Energy Investment Banking team after holding several positions at Banc of America Securities and Deutsche Bank Securities. Mr. Wieland holds a BS in Chemical Engineering from the University of Texas and an MBA from Rice University.


Christopher Abbate, Partner, Riverstone

Christopher Abbate is a Partner at Riverstone and Co-head of Riverstone Credit Partners, focused on credit and capital markets activities. Since joining Riverstone, Christopher has overseen over $3bn in debt investments in the energy sector made by both Riverstone’s dedicated credit fund and its traditional private equity funds. Prior to joining Riverstone in 2014, Christopher was a managing director and head of energy leveraged finance at Citigroup and prior to that, head of US Leveraged Finance Origination at UBS Investment Bank. Over his time at Citi and UBS, Christopher worked on over 250 leveraged finance transactions as a bookrunner or lead arranger, including over 100 transactions as the lead bookrunner.  In addition, Christopher is actively involved in an advisory capacity with all of Riverstone’s portfolio companies with respect to capital structure and access to the capital markets.


David Burgstahler, Managing Partner and Co-CEO, Avista Capital Partners

David Burgstahler is the Managing Partner and Co-Chief Executive Officer of Avista Capital Partners. Prior to co-founding Avista Capital Partners in 2005, Mr. Burgstahler was a Partner of DLJ Merchant Banking Partners and Head of Healthcare. Mr. Burgstahler was at DLJ Investment Banking from 1995 to 1997 and DLJMB from 1997 to 2005. Prior to joining DLJ, he worked at McDonnell Douglas (now Boeing) from 1987 to 1990 and Andersen Consulting (now Accenture) from 1991 to 1993. Mr. Burgstahler currently serves as a Director of Inform Diagnostics, Kramer Laboratories, Osmotica Holdings, United BioSource Corporation, WideOpenWest (NYSE: WOW) and other private boards. He previously served on the boards of AngioDynamics (Nasdaq: ANGO), Armored AutoGroup, BioReliance, ConvaTec Group, Focus Diagnostics, INC Research Holdings (Nasdaq: INCR), Lantheus Holdings (Nasdaq: LNTH), MPI Research, Inc., Strategic Partners, Visant and Warner Chilcott (Nasdaq: WCRX). Mr. Burgstahler is also a Trustee of the Trinity School in New York City. Mr. Burgstahler received a B.S. in Aerospace Engineering from the University of Kansas and an MBA from Harvard Business School.


Guy Hoffman, Partner, Chambers Energy Management

Guy Hoffman is a Partner of Chambers Energy Management and also serves on the firm’s investment committee.  In addition to these roles, Mr. Hoffman participates directly in deal sourcing, due diligence, negotiations and ongoing monitoring of investments.  Mr. Hoffman has extensive energy and corporate finance experience including investing, corporate development, financial and strategic consulting, and mergers and acquisition activity.  Mr. Hoffman was employed by Lehman Brothers from 2003 to 2008, where he was an investment manager for the Lehman Energy Fund. Prior to his time with the Lehman Energy Fund, Mr. Hoffman served as Vice President of Corporate Development for American Plumbing & Mechanical, Inc. from 1999 to 2003 and as a Director in Enron’s Capital Management Group from 1997 to 1998.  Prior to Enron, Mr. Hoffman served as a Senior Manager at Deloitte & Touche LLP. Mr. Hoffman holds a B.B.A. in Accounting, cum laude, from Texas A&M University and an M.A. in Biblical Studies from Dallas Theological Seminary.


Daniel Levan, Director, BlackRock Global Credit Platform

Daniel Levan is a Director in BlackRock’s Global Credit Platform (Tennenbaum Capital Partners prior to the acquisition) with a focus on special situation investments. Among his other sector responsibilities, Mr. Levan also leads coverage of the Energy Sector and has invested across energy cycles, the value chain and served as a board member in many of the fund’s energy investments. Mr. Levan has over 12 years’ experience and a strong record of success in special situations investing across the capital structure (equity and debt), in both public and private markets. Mr. Levan has led numerous creditor committees in corporate restructurings in North America, Europe, Asia and Latin America and sat on the Board of Directors of several companies. Prior to his current role, Mr. Levan was a Portfolio Manager at Jamison Capital Partners, a pure energy commodity fund where he was responsible for launching and leading the firm’s special situation strategy. Prior to Jamison Capital Partners, Mr. Levan spent over 6 years at Fortress Investment Group on the Drawbridge Special Opportunities Fund investing in the US, Latin America and Asian markets. He started at Goldman Sachs in the Special Situations Group after finishing his studies at the Wharton School at the University of Pennsylvania.