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ABOUT DTPS LTD.

Projects-side experience,
applied for your

commercial success.

DTPS Ltd. provides strategic analysis and commercial insight for companies servicing Alberta's oil sands sector.

FOUNDER

Diana Tulegen

Independent Oil Sands Business Consultant  ·  M.Sc. Chemical Engineering

Diana’s advice draws on her owner-side project management and execution experience with major Alberta oil sands operators. She has been directly accountable for managing front-end project planning, commercial risk identification, capital funding and execution planning for brownfield upstream assets.

She has managed capital and operational projects valued up to $60 million across mine, extraction and tailings environments — working between Calgary project offices and field sites at Kearl and Cold Lake. Her disciplined approach to project development and sequencing has supported execution readiness, schedule improvement and cost performance.

During this time, Diana worked with over 20 contractor and vendor companies, selecting EPCs, engineering firms and construction companies for FEED, detailed engineering and execution. She negotiated equipment procurement scopes and evaluated software solutions for project teams. Diana now uses her operator-side experience to help service companies translate owner strategies into clear business targets.

Experience

Imperial Oil / ExxonMobil

Calgary-based project management with site presence at Kearl & Cold Lake — brownfield portfolios $200K–$60M

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CNRL, Horizon Oil Sands
Site-based process engineering,

tailings pilot — Fort McMurray

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University of Alberta

M.Sc. research — bitumen

physical properties & partial upgrading

2023–

2025

 

 


 

2022

 

 


2020–

2021

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CREDENTIALS & BACKGROUND

Education

M.Sc. Chemical Engineering
University of Alberta

Insurance

E&O Insurance
Active coverage

Incorporated

DTPS Ltd.
Alberta, 2025

Available for engagements across Alberta.

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GET IN TOUCH

 

DTPS Ltd. provides commercial and strategic consulting services. Services do not constitute the practice of engineering as defined under the Engineering and Geoscience Professions Act (Alberta).

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© 2026 DTPS Ltd. All rights reserved.

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