Company lists · Data refreshed September 2026

Top 18 Upstream oil and gas companies based in Canada

RevenueBase identified 38 company matches for upstream oil and gas companies associated with Canada as of September 2026 and tracks 1,601 professional contacts across them, including 438 with verified work emails. Calgary is the largest hub.

This list covers company matches for upstream oil and gas companies associated with Canada, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 19, 2026 How this list was built
38Companies
1,601Contacts tracked
438Verified emails
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The 18 largest upstream oil and gas companies based in Canada

Ranked by team size
Top 18 of 38 company matches for upstream oil and gas companies based in Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchCalgary, AB, CanadaHQ recorded Sep 19, 2026501-1,000785 contacts →

Exact match

“Gran Tierra Energy Inc, together with its subsidiaries, is a company focused on oil and gas exploration and production in Azerbaijan, Canada, Colombia and Ecuador.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchEdmonton, AB, CanadaHQ recorded Sep 19, 2026201-500190 contacts →

Exact match

“Techno Canada Inc.(TCI), a company incorporated in Alberta, provides a diverse range of high quality oil field services across the Oil & Gas upstream value chain to a global…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchCalgary, AB, CanadaHQ recorded Sep 19, 202651-200156 contacts →

Exact match

“Tamarack Valley Energy Ltd (TVE) is an oil & energy company based out of, Calgary, Alberta, Canada.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchCalgary, AB, CanadaHQ recorded Sep 19, 202651-200131 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchOttawa, ON, CanadaHQ recorded Sep 19, 202651-20058 contacts →

Exact match

“Petro-Canada Fuels is an oil and gas company based out of 1985 Merivale Road, Ottawa, Ontario, Canada.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchCalgary, AB, CanadaHQ recorded Sep 19, 202651-20041 contacts →

Exact match

“Barrel Oil Corp is a private integrated energy company engaged in exploration, production, and processing of crude oil, natural gas, and natural gas liquids.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchCalgary, AB, CanadaHQ recorded Sep 19, 202651-20033 contacts →

Exact match

“Enerchem is a Western Canadian based producer of hydrocarbon fluids which include hydrocarbon drilling and fracturing fluids, production improving solvents, specialty aviation…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchCalgary, AB, CanadaHQ recorded Sep 19, 202611-5016 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchCalgary, AB, CanadaHQ recorded Sep 19, 202611-5013 contacts →

Exact match

“Exploration & Production”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchCalgary, AB, CanadaHQ recorded Sep 19, 202611-5013 contacts →

Exact match

“Barnwell Of Canada, Limited is an Oil & Gas Company based in the City of Calgary, Alberta, Canada.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchCalgary, AB, CanadaHQ recorded Sep 19, 202611-5010 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchCalgary, AB, CanadaHQ recorded Sep 19, 202611-508 contacts →

Exact match

“Gear Energy is a public oil and gas E&P company with heavy oil exposure in East Central Alberta and West Central Saskatchewan, and light oil exposure in Central Alberta.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchCalgary, AB, CanadaHQ recorded Sep 19, 202611-507 contacts →

Exact match

“Welcome to NL Fisher Drilling & Supervision We are NL Fisher, a team of highly experienced engineers, superintendents, technologists and operational experts.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchSundre, AB, CanadaHQ recorded Sep 19, 202611-503 contacts →

Exact match

“Wellworks Energy Services Inc.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchCalgary, AB, CanadaHQ recorded Sep 19, 202611-503 contacts →

Exact match

“Bounty Developments Ltd is an oil & energy company.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchClairmont, AB, CanadaHQ recorded Sep 19, 20261-103 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchStrathmore, AB, CanadaHQ recorded Sep 19, 202611-502 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchCalgary, AB, CanadaHQ recorded Sep 19, 20261-102 contacts →

Exact match

“Old Hill Oils is an upstream oil and gas company focusing on the Western Canadian Basin.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 18 of 38 upstream oil and gas companies based in Canada

See the full list, filter by size, metro and specialty, and access 438 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Upstream oil and gas companies based in Canada at a glance

As of Sep 19, 2026
27.4%Verified-email coverage
42.1Average contacts per company
11-50Median size (employees)
71.1%Largest-city concentration · Calgary
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
13
11-50
13
51-200
8
201-500
2
501-1,000
1
5,001-10,000
1

Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 38 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Canada whose business descriptions match “upstream oil and gas companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 438 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 19, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “upstream oil and gas companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many upstream oil and gas companies are there based in Canada?

RevenueBase identified 38 company matches for upstream oil and gas companies associated with Canada as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Gran Tierra Energy tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most upstream oil and gas companies?

Calgary leads with 27 company records, followed by Edmonton (2) and Clairmont (1).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 438 professional contacts with verified work emails tracked across these 38 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.