Who We Are

Established in 2019 and based in San Antonio, Texas, Nueces Midstream, LLC (“Nueces”) was founded by the former executives of TexStar Midstream Logistics, BlackBrush Oil & Gas and SemGas to focus on infrastructure development in south Texas. Management has decades of experience in the development, commercialization, construction and operation of strategic midstream assets.

Our Capabilities Include

  • Crude Oil Gathering: Well head gathering, in-field terminals and multiple downstream interconnects to capture premium prices and optionality
  • Dry Gas Gathering and Transportation: In-field gathering, treating and long-haul transportation directly to end markets and consumers
  • Gas Gathering, Processing, and Treating: Low-pressure, sour gas gathering, treating, acid gas injection, compression, dehy and gas lift
  • Downstream Logistics: “Neat” crude gathering, crude and clean product storage, clean product transportation and strategic splitter operation

Nueces is backed by a substantial equity commitment from Tailwater Capital, LLC. The managing partners of Tailwater have over a ten-year investing relationship with members of the Nueces team.

Meet the Team

Founder & CEO

Wayne Ziegler

Mr. Ziegler brings a diverse industry background with over 32 years of commercial and senior leadership related experience within the energy and midstream industries.

Mr. Ziegler brings a diverse industry background with over 32 years of commercial and senior leadership related experience within the energy and midstream industries. Prior to joining Nueces, Mr. Ziegler served as Vice President of SemGas from 2010-2018 with overall responsibility for SemGroup’s US Natural Gas business. Previous to managing SemGas, Mr. Ziegler held a variety of senior leadership roles within SemGroup from 2005-2010, ranging from Vice President- Marketing & Sales to Vice President-Strategic Refining Services. Prior to SemGroup, Mr. Ziegler was previously employed by Koch Materials Co. where he held multiple commercial and senior leadership roles from 1987-2005. Mr. Ziegler received his undergraduate degree from the University of Kansas.
Founder & President

David Ash

Mr. Ash has approximately 20 years of experience in E&P and midstream leadership, commercial development, investment, finance and M&A execution.

Mr. Ash has approximately 20 years of experience in E&P and midstream leadership, commercial development, investment, finance and M&A execution. In 2011, Mr. Ash joined Nueces’ processor companies BlackBrush Oil & Gas and TexStar Midstream Services (“TexStar II”) as Chief Financial Officer. Prior to 2011, Mr. Ash was an investment and merchant banker in Houston where he focused on E&P, midstream and oilfield investments, financings and M&A transactions. Mr. Ash earned a BBA in Finance from Southern Methodist University and a Master of Business Administration from University of Texas at Austin.
Chief Operating Officer

Jasen Walshak

Mr. Walshak is primarily responsible for project execution and operational performance for the company.

Mr. Walshak is primarily responsible for project execution and operational performance for the company. Mr. Walshak brings an extensive upstream background that spans multiple technical disciplines including drilling, completion, production, pipeline and facility engineering, and resource valuation. Prior to joining Nueces, Mr. Walshak spent over 11 years at BlackBrush Oil & Gas, LP where he served in several engineering and leadership roles including 7 years as Production Manager and most recently Western Division Manager where he was responsible for overseeing multiple asset teams with E&P activities covering more than 220,000 gross operated acres located in the western Eagle Ford. Mr. Walshak graduated from the University of Texas at Austin with a Bachelor of Science degree in Petroleum Engineering.
Chief Commercial Officer

Wesley Holmes

Mr. Holmes is primarily responsible for business development and commercial activities for the company.

Mr. Holmes is primarily responsible for business development and commercial activities for the company. Mr. Holmes has a diverse industry background with over 17 years of NGL, natural gas, crude, and midstream M&A related experience. Prior to joining Nueces, Mr. Holmes served as Vice President of Commercial & Business Development for SemGroup. During his tenure at SemGroup, Mr. Holmes maintained commercial responsibility for the US Natural Gas business. From 2002 to 2013, Mr. Holmes held various commercial and business development roles at Williams, focused in the Mid-Continent, Rockies, and Gulf Coast. Mr. Holmes earned a Bachelor of Science degree in Finance from Oklahoma State University.
Director of Commercial Development

Ryan Acker

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Senior Accountant

Regina Walshak

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Office Manager

Amber Koontz

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Executive Vice President of Downstream

Michael Pesch

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Capital Partners

Tailwater Capital LLC is a highly specialized middle-market private equity firm focused exclusively on the energy industry. Tailwater has a strong history of creating solutions oriented, value-added partnerships with experienced management teams to invest growth equity across the midstream and upstream sectors.