Company lists · Data refreshed September 2026

Top 25 Oil and gas operators based in Canada

Name: Oil and gas operators based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 126 companies tracked

RevenueBase identified 126 oil and gas operators headquartered in Canada as of September 2026 and tracks 15,481 professional contacts across them, including 5,379 with verified work emails. Calgary is the largest hub.

This list covers oil and gas operators headquartered in Canada, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

126Companies

15,481Contacts tracked

5,379Verified emails

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The 25 largest oil and gas operators based in Canada

Ranked by team size

Top 25 of 126 oil and gas operators based in Canada, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to oil and gas operators: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Cenovus Energy	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	5,001-10,000	6,379 contacts →
	Indirect evidence “Cenovus Energy Inc.” Source: RevenueBase Database · checked Sep 17, 2026
2	Imperial OIL	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	5,001-10,000	4,277 contacts →
	Indirect evidence “After more than a century, Imperial continues to be an industry leader in applying technology and innovation to responsibly develop Canada’s energy resources.” Source: RevenueBase Database · checked Sep 17, 2026
3	Encana Corporation	Strong evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	1,001-5,000	1,690 contacts →
	Strong evidence “Encana is a leading North American energy producer that is focused on growing its strong portfolio of diverse resource plays producing natural gas, oil and natural gas liquids.” Source: RevenueBase Database · checked Sep 17, 2026
4	Gran Tierra Energy	Strong evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	501-1,000	785 contacts →
	Strong evidence “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.” Source: RevenueBase Database · checked Sep 17, 2026
5	Enerplus	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	201-500	323 contacts →
	Indirect evidence “Enerplus is an independent North American exploration and production company focused on developing our high-quality assets through a disciplined, returns-based capital program.” Source: RevenueBase Database · checked Sep 17, 2026
6	Techno Canada INC	Strong evidence	Edmonton, AB, CanadaHQ checked Sep 17, 2026	201-500	190 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
7	Obsidian Energy LTD	Strong evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	201-500	187 contacts →
	Strong evidence “Obsidian Energy Ltd.(TSX / NYSE American: OBE) is an intermediate-sized oil and gas producer with a well-balanced portfolio of high-quality assets producing over 37,450 boe per…” Source: RevenueBase Database · checked Sep 17, 2026
8	Tamarack Valley Energy LTD TVE	Partial evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	51-200	156 contacts →
	Partial evidence “Tamarack Valley Energy Ltd (TVE) is an oil & energy company based out of, Calgary, Alberta, Canada.” Source: RevenueBase Database · checked Sep 17, 2026
9	Canelson Drilling INC	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	501-1,000	89 contacts →
	Indirect evidence “Drilling Rig Manufacturer & Operation Solutions CanElson Drilling Inc.(“CanElson”) is a leading provider of oilfield services.” Source: RevenueBase Database · checked Sep 17, 2026
10	Simmons Edeco	Partial evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	501-1,000	81 contacts →
	Partial evidence “As a privately-owned oilfield service company SIMMONS EDECO provides oilfield services to an international customer base of major oil companies and large independent producers…” Source: RevenueBase Database · checked Sep 17, 2026
11	Apex Well Servicing INC	Indirect evidence	Slave Lake, AB, CanadaHQ checked Sep 17, 2026	51-200	80 contacts →
	Indirect evidence “Headquartered in Slave Lake, Alberta.” Source: RevenueBase Database · checked Sep 17, 2026
12	Medallion Energy Services INC	Strong evidence	Grande Prairie, AB, CanadaHQ checked Sep 17, 2026	51-200	68 contacts →
	Strong evidence “We work with oil and gas producers to meet our mutual goals of providing a product that is safe, efficient and cost effective.” Source: RevenueBase Database · checked Sep 17, 2026
13	Western Energy Services Corp	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	501-1,000	59 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
14	Petro-Canada Fuels	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 17, 2026	51-200	58 contacts →
	Strong evidence “Petro-Canada Fuels is an oil and gas company based out of 1985 Merivale Road, Ottawa, Ontario, Canada.” Source: RevenueBase Database · checked Sep 17, 2026
15	Barrel OIL Corp	Strong evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	51-200	41 contacts →
	Strong evidence “Barrel Oil Corp is a private integrated energy company engaged in exploration, production, and processing of crude oil, natural gas, and natural gas liquids.” Source: RevenueBase Database · checked Sep 17, 2026
16	Calroc Industries	Indirect evidence	Lloydminster, AB, CanadaHQ checked Sep 17, 2026	11-50	41 contacts →
	Indirect evidence “Calroc Industries Inc.” Source: RevenueBase Database · checked Sep 17, 2026
17	Astara Energy Corp	Strong evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	11-50	35 contacts →
	Strong evidence “Astara Energy is an emerging, private Junior Oil and Gas company with operations in Alberta” Source: RevenueBase Database · checked Sep 17, 2026
18	Savanna Well Servicing INC	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	201-500	35 contacts →
	Indirect evidence “Savanna Well Servicing’s Canadian division has an exceptional track record of quality service and has operated in all plays through the Western Canadian Sedimentary Basin.” Source: RevenueBase Database · checked Sep 17, 2026
19	Weaver Group Limited	Indirect evidence	Peace River, AB, CanadaHQ checked Sep 17, 2026	201-500	34 contacts →
	Indirect evidence “Weaver Group is a quality contractor specializing in Pipeline, Facility and Civil Construction, as well as Facility Maintenance and Plant Turnarounds.” Source: RevenueBase Database · checked Sep 17, 2026
20	Enerchem International INC	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	51-200	33 contacts →
	Indirect evidence “Enerchem is a Western Canadian based producer of hydrocarbon fluids which include hydrocarbon drilling and fracturing fluids, production improving solvents, specialty aviation…” Source: RevenueBase Database · checked Sep 17, 2026
21	Lydell Group INC	Indirect evidence	Drayton Valley, AB, CanadaHQ checked Sep 17, 2026	11-50	33 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
22	Eclipse E-Line Services INC	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	11-50	28 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
23	Total Energy Services INC	Strong evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	1,001-5,000	23 contacts →
	Strong evidence “Through our distinct business lines we can provide equipment and expertise for your drilling, completion, production, transportation, oil and gas process equipment and natural gas…” Source: RevenueBase Database · checked Sep 17, 2026
24	Brion Energy	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	51-200	20 contacts →
	Indirect evidence “PetroChina Canada is an integrated energy company focused on responsibly producing and delivering the energy the world needs.” Source: RevenueBase Database · checked Sep 17, 2026
25	Prostar Energy	Partial evidence	Calgary, AB, CanadaHQ checked Sep 17, 2026	51-200	17 contacts →
	Partial evidence “Proprietary service rigs combined with best-in-class safety and operational performance has allowed Prostar to demonstrate continued growth in a retracting crude oil price…” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: oil and gas operators. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names oil and gas operators.
Partial evidence: Its own public description names part of oil and gas operators, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oil and gas operators. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 126 oil and gas operators based in Canada

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Oil and gas operators based in Canada at a glance

As of Sep 17, 2026

34.7%Verified-email coverage

122.9Average contacts per company

11-50Median size (employees)

43.7%Largest-city concentration · Calgary

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 126 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among oil and gas operators, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Canada whose own description of what they do matches “oil and gas operators”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names oil and gas operators), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among oil and gas operators, and records with no verified work email. Companies headquartered outside Canada are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 5,379 across the full list. 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 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Oil and gas operators by metro

Oil and gas operators in Calgary55

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names oil and gas operators, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many oil and gas operators are there based in Canada?

RevenueBase identified 126 oil and gas operators headquartered in Canada as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Cenovus Energy, headquartered in Calgary, tops this list with the largest team on record.

Which city has the most oil and gas operators?

Calgary leads with 55 headquartered companies, followed by Edmonton (9) and Drayton Valley (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 5,379 verified decision-maker contacts tracked across these 126 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 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 Smart Search, 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.