Officers / Board of Directors
PAH / PAH EF President
Andrew Bermack
O: (713) 973-3951
abermack@thetroycompanies.com
Andrew Bermack currently serves as the President and Chairman of the Boards for The Pipeliners Association of Houston and The Pipeliners Association of Houston Educational Fund. This position holds the responsibilities of Chief Executive Officer of the Association and the Educational Fund and shall have general supervision of the affairs of the Association and the Educational Fund.
Andrew has 27 years in the pipeline construction business and has been involved with The Pipeliners Association of Houston since 2001. Within the Pipeliners he previously served as the Chair of the Membership Committee and has volunteered for more than twelve years at meetings and events.
Andrew grew up as a second-generation pipeliner and worked on his first pipeline in 1997. After completing that overseas assignment as a warehouseman on the island of Sumatra, Indonesia, he graduated from Colgate University with a degree in Economics and moved to Houston. There, he ascended the industry value chain working for suppliers, engineering companies, and pipeline contractors. Andrew is the Vice President of Business Development at the Troy Companies overseeing the BD & Marketing effort across Troy Construction & Troy Engineering Services.
Andrew is active in the INGAA Foundation, the Tulsa Pipeliners, the Appalachian Pipeliners, and Rocky Mountain Pipeliners.
He has been married to his wife for 20 years and has two wonderful children.
PAH / PAH EF Vice President
Rob Koenig
O: (713) 646-4411
rob.koenig@plains.com
Rob Koenig has over 30 years in the pipeline industry and has been involved with The Pipeliners Association of Houston since the early 2000’s. Within the Pipeliners, he previously served as the Co-Chair of the Sporting Clay Committee and still serves on the Committee today.
Rob began his pipeline career working as a field engineer for United Gas Pipe Line in Victoria, TX. Since then, he has worked for Koch Industries and Kinder Morgan across the Gulf Coast. Today, he is the Director of Project Management for Plains and is responsible for the development and execution of projects in both the U.S. and Canada.
Rob has been active in his local community, including coaching youth sports, serving as President of the Little League Board, and Chairman on a church committee.
Rob graduated from Texas A&M University with a Bachelor of Science in Civil Engineering. He and his wife of over 30 years have enjoyed living in the Sugar Land area raising their two children (well, young adults now). In his free time, he enjoys spending time on their family ranch property near Gonzales, Texas.
PAH / PAH EF Treasurer
James Mathis
C: (832) 794-0361
james.g.mathis@williams.com
James Mathis has worked in the pipeline industry for over 24 years and has been involved with The Pipeliners Association of Houston since 2020. He currently serves on the Website Committee and assists with Scholarship Interview day.
James began his pipeline career as an Engineer working for The Williams Companies, Inc. He has held various technical and managerial positions in Pipeline Engineering, Engineering Services, Technical Services, Pipeline Safety, Environmental Compliance, Construction & Contracting Management, and Project Management & Execution. He currently serves as Manager, Transmission & Gulf of Mexico Tactical Project Execution – South.
James graduated from Texas A&M University with a Bachelor of Science and Master of Science in Agricultural Engineering specializing in Environmental Natural Resource Engineering and is currently pursuing a Master of Business Administration from the University of Houston. He holds a Texas Professional Engineering License in Civil Engineering and has obtained the Project Management Professional Certification. James and his wife Amy have three children, Emily, Landon, and Jackson and reside in Sugar Land/Richmond area. James enjoys serving as a Deacon in his church (Sugar Creek Baptist) leading the Widow/Widowers Ministry and serving as a Middle School Connect Group Leader. In his spare time, he has been learning to play the guitar.
PAH / PAH EF Secretary
Mark Hartmann
C: (832) 289-4557
mark.hartmann@williams.com
Mark has worked for The Williams Companies for 25 years and has held a variety of Engineering, Project Management and Construction roles in that time, mainly focused on executing pipeline projects. His current role is Director of Engineering for the Project Execution organization within Williams. Mark has been involved with the Genesys Works internship program for over 10 years, serving as Williams’ company liaison as well as managing interns.
Mark graduated from the University of Texas at Austin with a Bachelor of Science in Mechanical Engineering. He is a Texas Licensed Professional Engineer and hold a PMI Project Management Professional (PMP) certification. Mark and his wife Maria have four children and reside in the Klein-Tomball area. Mark enjoys serving in men’s ministry and student mission trips at his church (Faithbridge Church, Klein TX). In his spare time (what little there is), he enjoys attending Longhorn sporting events, reading, and playing golf.
PAH / PAH EF Assistant Secretary
Shay Schoettlin
C: (832) 722-7882
sschoettlin@gie.com
From day one Shay completely immersed herself in all the industry’s organizations such as Houston GPA Midstream, Houston Association of Professional Landmen, Women’s Pipeliners Network, Oilfield Helping Hands and of course The Pipeliners Association of Houston. She has been very active with PAH attending nearly every event offered, as well as her involvement with the Pipeliners Young Professionals committee for two years, serving as Co-Chairman for 2025 and again in 2026. In addition to her involvement in industry organizations, Shay is also an active volunteer for The Houston Livestock Show & Rodeo, Directions & Assistance Committee for the past three years.
Shay is a 2016 graduate of Texas A&M University (Whoop!) where she was a member of the Gamma Phi Beta sorority. In her free time, she attends WoodsEdge Community Church in The Woodlands, can be found on the golf course, surfing on Lake Conroe, hitting the trails, or traveling with her weenie dog, Tank.
PAH Director Immediate Past President
Tim LeVrier
C: (832) 465-5827
tlevrier@michels.us
Currently Tim is the Vice President of Business Development at Michels Corporation, an international infrastructure and utility contractor specializing in pipeline, facility, mission critical, renewable energy, marine, telecommunications, water and wastewater, and heavy civil markets. Previously he worked with Equix Inc. as their Vice President of Business Development and Marketing and Mustang Engineering (now Wood.) as Director of Business Development. Tim has spent additional time in his career at Weatherford International specializing in LWD/Well Evaluation and working in-house at ExxonMobil and Occidental Petroleum. He is a graduate of Texas A&M University.
Tim has been married to his wife Lauren for 17 years, they live in Houston with their 14-year-old triplets. Tim is a native Houstonian.
PAH Director - 2nd of 2 year term
Melissa Scott
C: (832) 765-1749
melissa.a.scott@p66.com
Melissa has a Bachelor of Science in Chemical Engineering from Louisiana State University and a Master of Arts in Multicultural Studies in Business from University of Houston.
Melissa is on the Board of Directors at St. Agnes Academy and chairs the Buildings & Grounds Committee and is on the Advisory Board for the Doyenne Initiative. She volunteers at the Girls, Inc Greater Houston, West Houston Assistance Ministry, Houston Food Bank, St. Mary of the Purification Catholic Church, Catholic Extension Society, and Co-Cathedral of the Sacred Heart.
Melissa is married with two children ages 25 and 20.
PAH Director - 2nd of 2 year term
Greg Tuckwood
C: (713) 254-6202
greg.tuckwood@woodplc.com
Being a second generation pipeliner, Greg has grown up and worked internationally in Canada, Argentina, Holland, Colombia, Thailand, Algeria and the UK. Originally from Canada, Greg moved to Texas in 1980.
Greg graduated from University of Texas – San Antonio with a Bachelor of Science degree in Mechanical Engineering. Greg enjoys spending time with his amazing children (Ethan and Mia) and cooking and traveling with his beautiful wife (Ann) of over 30 years. On the weekends, you can find Greg kicking the soccer ball around wherever he can find an adult pick-up game.
PAH Director - 1st of 2 year term
David Carpenter
C: (713) 907-6434
david.carpenter@arionblue.com
David Carpenter brings over 39 years of experience in the oil and gas industry. He began his career at Wood Group in 1997 as an Assistant Right-of-Way Manager before moving into Business Development in 2001. He later served as Senior Vice President of Onshore Business Development, helping drive over $400 million in annual sales across the U.S., Canada, and South America. David is known for his expertise in key account management, mergers and acquisitions, and market expansion.
He has been a Member of The Pipeliners Association of Houston since 1999 and has previously served on the Golf Tournament Committee.
Outside of work and the PAH, he enjoys golfing, boating with his family, and traveling.
PAH Director - 1st of 2 year term
Michelle McElya Fisher
C: (979) 848-6646
mmcelya@lja.com
Michelle is an active member of Pipeliners Associations across several regions, including Houston, San Antonio, Rocky Mountain, Permian, and Tulsa. She also participates in the Houston-based Sky High for St. Jude organization and has been a dedicated life member of the Houston Livestock Show and Rodeo for 25 years.
In her professional capacity, Michelle holds the position of Director of Business Development, Energy at LJA Engineering, Inc., where she focuses on strengthening client partnerships and advancing midstream infrastructure solutions nationwide. She earned a Bachelor of Business Administration in Marketing from the University of Houston.
Outside of her professional endeavors, Michelle is an avid outdoorswoman who enjoys shooting, hunting, and fishing. She and her husband, Alton Fisher, are parents to four daughters and one son, and take great pride in their three grandchildren.
PAH EF Director - 1st of 1 year term
Max Mahan
C: (346) 287-1424
mmahan@gie.com
Max Mahan serves as the Chairman of the Directory Committee for The Pipeliners Association of Houston and has been actively involved with the Association for seven years. In 2025, he was recognized as The Pipeliners Association of Houston Volunteer of the Year in appreciation of his dedication and service to the organization.
Max is the Director of Business Development for Gulf Companies and has been with the firm for over seven years, where he supports business development and marketing efforts across engineering, survey, and inspection verticals.
A native Houstonian, Max holds a bachelor’s degree in Agricultural Leadership with a minor in Business from Texas A&M University. His background emphasizes organizational leadership, strategic communication, and practical, solutions oriented decision making.
Max has been married to his wife, Tayler, for three and a half years, and they have one son.
PAH EF Director - 2nd of 3 year term
Casey Lajaunie
C: (832) 377-9716
casey.lajaunie@enbridge.com
Casey began his professional career at CenterPoint Energy in 2001. Five years later he joined Williams where he began his pipeline career. In his 13 years at Williams, he enjoyed several different positions: design engineer, field pipeline integrity engineer, pipeline integrity supervisor, and pipeline integrity manager. In 2019, he joined Enbridge and continues to have an active role in the development of the Enbridge pipeline integrity department.
Casey graduated from Louisiana State University in 2001 with a degree in Electrical Engineering. He is a licensed P.E. in several states. Casey enjoys spending time with his wife and three children. When he isn’t at an event for one of his kids, you can find Casey running along the bayous training for his next marathon.
PAH EF Director - 1st of 3 year term
Paul Prodoehl
C: (281) 868-5482
paul@houstonpipeliners.net
Paul Prodoehl has over 33 years of natural gas pipeline industry experience. He retired in July 2024 after spending his entire professional career with Williams. At Williams he had varying responsibilities in several accounting and many commercial areas. Paul's last position was as a Manager in the Transmission and Gulf of Mexico's Commercial Technology & Analytics group. Paul's team oversaw the systems used by shippers to conduct business with Williams' FERC regulated assets. In addition to his regular duties, Paul served ten years on the Advisory Board for The Williams Companies' Political Action Committee (WILLCO PAC).
In addition to being on the Educational Fund's Board of Directors, Paul serves as the Chairman of the Association's Website Committee and Co-Chair of the Educational Fund's Scholarship Committee. He served as PAH / PAH EF President in 2024 and as PAH EF Scholarship Committee Chair. Outside of industry activities, Paul previously served on a variety of Board and Committee positions with Transtar Federal Credit Union (23 years), his Church (19 years), and the Girl Scouts of San Jacinto Council (ten years).
Paul graduated from the University of St. Thomas with a Bachelor's of Business Administration in Accounting and later earned his MBA in Finance also from the University of St. Thomas.
Paul and his wife Jonna have been married for 32 years and have two wonderful adult children.