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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
​
CNRL, Horizon Oil Sands
Site-based process engineering,
tailings pilot — Fort McMurray
​
University of Alberta
M.Sc. research — bitumen
physical properties & partial upgrading
2023–
2025
2022
2020–
2021

CREDENTIALS & BACKGROUND
Education
M.Sc. Chemical Engineering
University of Alberta
Insurance
E&O Insurance
Active coverage
Incorporated
DTPS Ltd.
Alberta, 2025
GET IN TOUCH
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