PIDX President

Stephanie Waters – PIDX Board Member

Chevron, Procurement/Supply Chain Enablement Manager 

Stephanie Waters serves as the Procurement/Supply Chain Enablement Manager at Chevron, where she has enabled a culture shift to focus on the end users through the use of digital concepts and agile methodologies. During her tenure at Chevron, spanning more than twenty years, she has implemented and deployed many digital change initiatives as well as served as Chair of the IT Oil and Gas Benchmark Group.

Chris Welsh - PIDX Board Member

OFS Portal, President and CEO

Chris Welsh has over 35 years of Information Technology, eCommerce, and Consulting experience and has been a key player in Oil & Gas eCommerce since 1995.  Chris has managed numerous global projects for operators, services companies, and eCommerce networks across the globe.  He was a founding member of ACT Global Consulting Ltd and has been providing strategic advice and technology architecture solutions to the Oil & Gas industry since 2000.  In March 2015, Chris became CEO and Chairman of the Board of OFS Portal LLC, a global member-based group of upstream oil and gas suppliers and service providers at the forefront of oilfield eCommerce.  Chris is also Chair of PIDX International and sits on the board of ConnectONCE.  He holds a Master of Science degree in Computing for Commerce and Industry and he is a keen rock climber and races a Ducati super-bike in his spare time.

PIDX BOD Andrew Mercer

Andrew Mercer - PIDX Board Member

BP, Vice President, Global Projects – Information Technology and Services

Andrew Mercer is currently Vice President for Information Technology and Services (IT&S) for BP’s Global Projects. In this role, Andrew is accountable for the strategy, execution, and delivery of all IT&S services to the Global Projects Organisation, in both the major projects and the global function.

Andrew has held various leadership roles in BP including Head of Architecture & Design in Business Functions, Solutions Director for the Upstream Backbone business transformation programme and Chief Architect in Procurement & Supply Chain Management.

Outside of this role Andrew is an active advocate of BP’s process management agenda serving as a member of the enterprise process governance council.

Prior to joining BP in 2006, Andrew was a member of the IT management team at GlaxoSmithKline (GSK) responsible for Corporate functions, having served previously as CIO at SmithKline Beecham Pharmaceuticals UK prior to the formation of GSK.

Andrew graduated from the University of Hertfordshire in 1985 with a BSc (Hons) degree in Computer Science.

Mary Rose Martinez - PIDX Board Member

Halliburton, Senior Director, Information Technology Architecture and Security

Mary Rose Martinez is the Senior Director of Information Technology (IT) Architecture and Security for Halliburton, and a member of Halliburton’s IT Leadership Team. In this role, she is accountable for IT enterprise architecture and technology standards, and corporate information security.

With 25 years of experience in the oil and gas industry, Mary Rose has held various leadership and strategic development roles across information technology, marketing, and software research and development. She is a graduate of Halliburton’s President’s Leadership Excellence Program, a yearlong leadership development program in which a select group of high-potential senior managers, directors, and first-time executives participates each year.

Mary Rose holds a bachelor degree in both computer science and mathematics from the University of St. Thomas, and a master of computer science degree from Rice University.


Amit Sethi – PIDX Board Member

Baker Hughes, a GE Company, Regional CIO MENAT and India 

Amit, a seasoned IT Leader, is passionate about driving high impact strategic outcomes for businesses leveraging his technology expertise, customer centricity, people leadership skills and business acumen.   

Amit is currently working as the MENAT and India region CIO for Baker Hughes GE. He additionally plays the roles of Digital Customer Experience leader and People leader for the MENAT and India IT teams. He also works in close partnership with the Regional Business CEO in defining the Digital Industrial Internet Go to Market Strategy for the BHGE business.

Amit has overall 18+ years of IT experience spanning IT Strategy and execution, P&L Leadership, Industrial Internet and ERP Consulting experience. Amit’s experience spans IT consulting and Industry IT roles in PwC (2000-2002), Computer Sciences Corporation (2002 to 2005 and 2012 to 2014) and GE (2005 to 2012 and 2014 to present).

Amit has completed his Management Education from the Indian Institute of Management, Lucknow in the year 2000 and his Degree in Electrical Engineering from V.J.T.I, Mumbai University in 1997. Amit is also a certified PMP from PMI. Amit is currently pursuing his Executive PhD from IIM Lucknow in Marketing. The research is on the impact of customer to customer collaboration in online communities on Brand Loyalty.

Amit is a graduate of the prestigious Executive Information Management Program from GE Crotonville. Amit has received multiple awards & appreciations for Leadership, Performance, Innovation and Teamwork during his stints with GE, CSC, Genpact and PwC. Some of the key awards received are the Strategic Initiatives Excellence Award from the GE O&G CEO, Diamond award from the CEO of Genpact, Employee of the Quarter Award at CSC and the award for Outstanding Performance at Genpact. Amit is a speaker at multiple Industry forums and B-Schools on various areas centered around Digital and Customer relationship management. 


Sebastian Gass – PIDX Board Member

Chevron, General Manager – Technology, Strategy & Services

Sebastian Gass is the General Manager for Chevron’s Technology, Strategy and Services division within the IT Company (ITC). In this role, Gass is responsible for Chevron’s Digital Transformation Strategy, Data Science, Enterprise Architecture, Project Management, Operational Excellence, Supplier Management, Services Definition and Business Planning groups.

He previously managed Chevron’s Data Center Infrastructure Asset which he transitioned into a hybrid cloud world via an Industry first partnership deal with Microsoft. Prior to that, Gass was the Regional IT Manager for Chevron North America Exploration and Production (CNAEP), responsible for the information technology needs of six business units focused on exploration and production of heavy oil, Unconventionals, liquefied natural gas (LNG) and deepwater. In this role, Gass was responsible for creating Chevron’s Data Science program as well as establishing Chevron’s digital platform for Unconventionals.

Prior to joining Chevron in 2007, Gass was the chief technology officer and executive vice-president at Hubwoo, a publicly-traded European company that provides comprehensive spend management and business process collaboration for goods and services. He started his career in information technology with SAP in Palo Alto, CA.

Sebastian holds a M.S. / MBA from Karlsruhe Institute of Technology in Karlsruhe Germany and a M.S. Engineering Management degree from Stanford University.

Roger Bhalla

Roger Bhalla – PIDX Board Member

ConocoPhillips, Manager of Supply Chain Services and Technology

Roger Bhalla is the Manager of Supply Chain Services and Technology for ConocoPhillips. In this role, Roger is responsible for the company’s global procurement shared services and optimizing global supply chain processes and IT systems for efficiency, effectiveness, and compliance. Much of this focus is centered around improving the Procure-to-Pay processes, eCommerce, reporting/analytics solutions, and contract management tools.

Prior to joining ConocoPhillips in 2012, Roger was the Vice President of Supply Chain Enablement at Hewlett-Packard. In this capacity, he drove a significant expansion of supply chain capability for >$250M in annual profit improvement, while standardizing business processes and consolidating IT systems. In this 15 years at HP, he held a number of leadership positions in Supply Chain, Marketing, and Business Planning. Earlier in his career, Roger was with the Ford Motor Company in Procurement, as well as with General Dynamics and Santa Clara Plastics in Engineering positions.

Roger holds an MBA in Marketing/Management and Bachelors of Science in Aerospace Engineering, both from the University of Texas (Austin). He is a Certified Supply Chain Professional (CPSC) from APICS.