Guillermo Sierra

Guillermo Sierra

Guillermo is our Vice President—Energy Transition. Mr. Sierra has served as Vice President, Strategic Initiatives—Energy Transition at Nabors since April 2021. Mr. Sierra has served as the Vice President—Energy Transition of NETC I since April 2021. Mr. Sierra has extensive experience in energy, infrastructure, venture investments, energy technology and climate technology, logistics, capital markets and M&A given his work on over 60 transactions with a combined value of over $200 billion over the last approximately 17 years through various advisory and corporate strategy roles. Most recently, Mr. Sierra was a Partner at Blackline Partners from August 2019 to December 2020, serving as Executive Vice President, Head of Strategy for Blackline Midstream from August 2019 to March 2020 and in the same position for Blackline Cold Storage from March 2020 to November 2020. Mr. Sierra was not employed from December 2020 to April 2021. Prior to that, Mr. Sierra served as Managing Director, Head of North America Midstream Advisory at Macquarie Capital from September 2016 to December 2018 before taking a sabbatical from December 2018 to August 2019. Mr. Sierra’s earlier experiences include positions at Credit Suisse (Director, Head of MLP/Midstream M&A), USD Group LLC & USD Partners (VP, Chief Strategy Officer and Head of M&A), Evercore Partners (Vice President — Energy M&A), and Barclays Capital (as a member of the Global Natural Resources Group). Mr. Sierra is currently a Senior Advisor to the Chief Executive Officer, and board observer on the board of directors, of Sage Geosystems Inc., and is also a board observer on the board of directors of Quaise, Inc., Hephae Energy Technology and UCAP Power, Inc.