Oil and gas

10 Chevron procurement leaders

These ten professionals have held director-level or higher procurement and supply chain management roles at Chevron, and most of them still hold Chevron roles. A reader can learn how Chevron sources and contracts for services and materials and how its supply chain teams manage suppliers.

10 professionals1 companiesData retrieved September 28, 2026

Professionals to explore

01—10
  1. Brice Debnam

    LinkedIn

    Experience: General Manager Supply Chain, Australia · Chevron

    General Manager Supply Chain, Australia at Chevron since August 2024, where the profile says he leads the teams responsible for category management, procurement, materials management, logistics, site services and major capital project supply chain for Chevron's LNG assets in Australia. He was also General Manager Supply Chain, Gulf of Mexico (2022–2024), General Manager Supply Chain, Tengizchevroil (Kazakhstan) (2020–2022) and General Manager Supply Chain, Mid-Continent Business Unit (2019–2020).

  2. Douglas Dent

    LinkedIn

    Experience: General Manager, SCM Strategic Capabilities · Chevron

    General Manager, SCM Strategic Capabilities at Chevron since August 2025; the profile describes in-depth knowledge of category management, supplier management and strategic sourcing, and experience in contract strategy development and execution. The profile also lists Strategic Procurement & Contracts Manager (from 2015) and Category Management COE Manager (from 2018) among his Chevron roles.

  3. Greg Tibbles

    LinkedIn

    Experience: GM Procurement, Downstream Technology & Services · Chevron

    Former GM Procurement, Downstream Technology & Services at Chevron (2010–2013), a role the profile tags at director level. The profile also lists GM, Supply Chain Management in Lagos (2008–2010), where he managed upstream supply chain activities for the Nigeria/Mid-Africa business unit, and shows him as retired from Chevron since 2013.

  4. Helmut Porkert

    LinkedIn

    Experience: Chief Procurement Officer · Chevron

    Former Chief Procurement Officer at Chevron (1999–2005), a role the profile describes as directing the company's global strategic procurement, sourcing, supplier management and supply chain management activities for all materials and services worldwide. The profile also lists Sr. Vice President at Bayer Corp (1980–1997).

  5. Jingfei Guo

    LinkedIn

    Experience: Chief Supply Chain Officer · Chevron

    Chief Supply Chain Officer at Chevron since August 2024, where the profile describes leading the global SCM function, which stewards Chevron's third-party spend on services and materials. Other Chevron roles include General Manager, Upstream SCM (2018–2024), General Manager, Supply Chain Management, Southern Africa Strategic Business Unit (2015–2018) and Procurement Manager, Manufacturing (2013–2015).

  6. Kevin Ruffcorn

    LinkedIn

    Experience: Asia South General Manager for Supply Chain Management · Chevron

    Asia South General Manager for Supply Chain Management at Chevron since May 2015, where the profile says he is responsible for all procurement, contracting, category management and logistics for the Asia South region. His other Chevron roles include Supply Chain Manager Kitimat Liquefied Natural Gas (2013–2015), Americas Products Procurement Manager (2011–2013) and Contracts Manager Procurement Operations Manager (2007–2011).

  7. Lauren Payne

    LinkedIn

    Experience: Director of purchasing · Chevron

    Director of purchasing at Chevron, a current role that the profile lists in the operations department at director level. The profile gives no start date for the role and lists no other positions, so the source shows only this title, its level and department, and a location in Adelaide, South Australia.

  8. Liem Do

    LinkedIn

    Experience: General Manager Americas Strategic Procurement and Contracting · Chevron

    General Manager Americas Strategic Procurement and Contracting at Chevron since October 2025, a role the profile places in Chevron Downstream, Midstream, Chemicals. Other Chevron roles include Manufacturing Supply Chain Manager (2022–2025) and Procurement Supply Chain Manager - Chevron Technical Center (2020–2022).

  9. Steven Thibodeaux

    LinkedIn

    Experience: General Manager, Category Management Global Drilling & Completions · Chevron

    Former General Manager, Category Management Global Drilling & Completions at Chevron (2005–2008), and General Manager, Upstream Supply Chain Management there since 2015. His other Chevron roles include General Manager, Supply Chain Management (2012–2015) and Global Procurement & Logistics Manager (2000–2005); the profile describes leading international supply chain management within Chevron's global upstream organization.

  10. Tim McCarthy

    LinkedIn

    Experience: Director, Upstream Supply Chain · Chevron

    Director, Upstream Supply Chain at Chevron since September 2024, a role the profile tags at director level. His other Chevron roles include General Manager, Australia Business Unit (ABU), Supply Chain Management (2020–2026), General Manager, Project Resources Company (Major Capital Projects), Supply Chain Management (2015–2020) and General Manager, Asia South Business Unit (ASBU), Supply Chain Management (2012–2015).

Choose the right perspective

Match the person's scope to your question, since upstream, downstream and regional supply chain groups buy different categories under different contract models. Check whether the relevant role is current or former, because procurement structures and policies may have changed since an earlier role.

Questions to take into the conversation

  1. 01How does Chevron decide which categories are managed globally and which are sourced by business units?
  2. 02What does a new supplier need to show to qualify for and win Chevron contracts?
  3. 03How are supplier performance and third-party spend reviewed with business leaders?

About this directory

This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot and may describe past or present roles. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.

Request a correction or removal

Other perspectives in Oil and gas