Tyler M. Abadie, P.E.

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Tyler Abadie is the Founder and CEO of ABADIE, with a career spanning engineering, operations, energy development, project leadership, and federal stakeholder engagement. He has led the growth of ABADIE into a development, execution, and advisory platform supporting more than $13 billion in capital projects, $3.25 billion in transactions, and 150+ midstream and deepwater port projects worldwide, and is a multi-state licensed Professional Engineer, patent author, and published industry expert.

Hollis Gibbs, P.E., PMP

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Hollis Gibbs is the COO of ABADIE and a licensed Professional Engineer and Project Management Professional with 15+ years of experience in project development, engineering, construction, commissioning, and operations across crude oil pipelines, terminals, offshore infrastructure, and major industrial facilities. His experience includes leadership roles with ExxonMobil and ABADIE, where he has managed multidisciplinary capital projects, regulatory and environmental coordination, project controls, contractor execution, pipeline integrity programs, and day-to-day company operations.

David Allison

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David Allison has 20 years of experience across the energy value chain, from upstream production through downstream refining and marketing. Prior to joining ABADIE, he held senior commercial roles with privately held midstream companies operating across the West Coast and Gulf Coast. His expertise includes commercial operations, project origination, acquisitions and divestitures, joint ventures, and regulatory strategy, with a track record of structuring commercial arrangements that align stakeholder interests and create value.

Hailey R. Abadie

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Hailey Abadie is the Chief Administrative Officer at ABADIE, with more than a decade of experience in operations and human resources across start-ups and established companies. She began her career in Environmental Health and Safety at Versabar, before helping build ABADIE’s business and HR functions. Hailey brings international expertise after holding both operational and HR roles in the United States and the United Kingdom, working with leadership to strengthen business processes, develop practical policies, and support employees. 

Pete White

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Pete White has over 35 years of global experience spanning exploration, appraisal, concept development, pre-FID planning, commercial structuring, portfolio management, to major project construction and execution. Track record of delivering complex onshore and offshore developments in US, Gulf of America, Guyana, Angola, Venezuela, Russia and the North Sea. Expertise includes technical-commercial integration, major project governance, economic modelling, governmental / NOC engagement and cross-functional leadership.

Stephen Mehn

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Stephen Mehn is a project, reliability, and governance leader with more than 15 years of experience spanning international rig construction, Gulf Coast industrial projects, chemical manufacturing, maintenance, capital projects, and global asset reliability. He has led global governance systems involving project execution, cost and risk management, Management of Change, reliability programs, performance reporting, and cross-functional accountability, building on earlier experience with Dow, Monsanto, JT Thorpe, and M-I SWACO.

Robert Writt, P.E., MBA

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Robert Writt is a senior offshore project executive and licensed Professional Engineer with nearly 30 years of experience developing and executing complex deepwater oil and gas projects, including subsea systems, FPSOs, FLNG, pipelines, brownfield developments, and large non-operated ventures. His leadership experience spans Apache, Oil Search, Cobalt, BHP Billiton, Shell, and FMC Technologies, with responsibility for multibillion-dollar projects, project assurance and governance, value engineering, contracting, cost and schedule management, stakeholder engagement, and progression from concept selection through FEED, FID, execution, and operations

Mauricio Gumucio

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Mauricio Gumucio is a global energy commercial and finance executive with approximately 30 years of experience in business development, M&A, joint ventures, project finance, strategic planning, and complex commercial negotiations. His career includes leadership roles with Santos, Promethean Energy, Cobalt International Energy, Talisman Energy, and BP, where he has managed major oil and gas investments, capital programs, asset transactions, crude transportation and marketing strategies, and partner governance across the United States and international markets.

Brian Buisson, P.E.

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Brian Buisson is a licensed Professional Engineer and Vice President of Engineering at ABADIE with extensive experience in LNG facilities, crude export terminals, pipeline hydraulics and surge analysis, mechanical systems, and in-line inspection/pigging applications. His background also includes engineering leadership for major crude oil, LNG, CO₂ EOR facilities, regasification, multidisciplinary project teams, marine mechanical systems, and complex energy infrastructure design.

Brian Reilly

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Brian Reilly is VP of Environmental & Permitting, with more than 30 years of leadership experience in natural resource damage assessment, oil-spill response, environmental impact assessment, coastal restoration, and natural-resource management. He has led major international marine studies and emergency-response programs, including large-scale Deepwater Horizon NRDA activities, while supporting oil and gas projects, pipeline corridors, industrial developments, and coastal infrastructure.

Andrew Amacker, P.E.

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Andrew Amacker is an offshore engineering and project management professional with 20+ years of experience supporting complex Gulf of Mexico and international energy developments, including subsea tie-backs, offshore production facilities, FPSOs, FEED/FEL studies, process systems, permitting, commissioning, and brownfield modifications. He was integral in building ABADIE's engineering divisions in 2019, relying on extensive leadership managing multidisciplinary offshore projects from early engineering and design through procurement, installation, commissioning, and project execution.

Eddie Hughes, PhD.

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Dr. Edmund Hughes is a senior lead marine scientist with more than 25 years of offshore experience leading environmental surveys, permitting support, and vessel-based field programs for energy and infrastructure projects worldwide. His expertise includes offshore survey design and execution, ROV and acoustic programs, environmental impact assessments, marine monitoring, and oil-spill/NRDA response across the Gulf, Africa, Mediterranean, Caribbean, and South America.

Taylor T. Honigman

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Taylor Honigman is a lead environmental scientist with Gulf Coast experience supporting wetland delineations, jurisdictional determinations, threatened and endangered species surveys, coastal permitting, restoration monitoring, and NEPA environmental assessments. Her experience also includes emergency spill response, environmental planning, and GIS-based spatial analysis and mapping

Patrick W. Clark, CDR (ret.)

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Patrick Clark is a senior maritime safety, security, and regulatory professional with more than 30 years of experience in U.S. Coast Guard operations, federal rulemaking, offshore energy regulation, maritime security, incident management, and international maritime affairs. For the past 11 years, he has served as a Senior Specialist with the U.S. Coast Guard’s Deepwater Ports Team, providing subject-matter expertise on deepwater port development, Outer Continental Shelf activities, offshore vessel and facility requirements, safety and environmental compliance, and complex federal regulatory matters.

Mark Reitch

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