Company lists · Data refreshed September 2026
Top 22 Offshore oil and gas companies based in Canada
RevenueBase identified 46 company matches for offshore oil and gas companies associated with Canada as of September 2026 and tracks 2,323 professional contacts across them, including 660 with verified work emails. Calgary is the largest hub.
This list covers company matches for offshore 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 15, 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.
The 22 largest offshore oil and gas companies based in Canada
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 785 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 15, 2026 · View company records in RevenueBase | |||||
| 2 | 194 contacts → | ||||
Exact match “Atlantic Towing is a leading provider of Offshore Supply, Port and Coastal marine services, operating in the North Atlantic, South Atlantic, Arctic and Pacific Coastal regions, as…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 3 | 156 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 15, 2026 · View company records in RevenueBase | |||||
| 4 | 155 contacts → | ||||
Exact match “International Petroleum Corp.(IPC) is an international oil and gas exploration and production company with a high quality portfolio of assets located in Canada, Europe and South…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 5 | 131 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 6 | 61 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 7 | 58 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 15, 2026 · View company records in RevenueBase | |||||
| 8 | 55 contacts → | ||||
Exact match “Siem Offshore manages a harsh-weather fleet of offshore support vessels servicing major offshore energy companies.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 9 | 35 contacts → | ||||
Exact match “CGX is a publicly traded (TSX-V|OYL) Canadian oil and gas exploration company that holds an interest in the Corentyne block in the Guyana Basin; a proven petroleum basin with over…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 10 | 29 contacts → | ||||
Exact match “COOEC is now one of the largest EPCI contractors for the offshore oil and gas industry in North America.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 11 | 17 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 12 | 16 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 13 | 16 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 14 | 13 contacts → | ||||
Exact match “Exploration & Production” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 15 | 13 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 15, 2026 · View company records in RevenueBase | |||||
| 16 | 10 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 17 | 10 contacts → | ||||
Exact match “Seabase Newfoundland Limited - Where Expectations Meet Excellence.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 18 | 9 contacts → | ||||
Exact match “Nabors Drilling Limited is a company based out of 551 Industrial Rd, Brooks, AB, Canada.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 19 | 4 contacts → | ||||
Exact match “Record Resources (http://recordgoldcorp.com) is a Canadian lithium and gold exploration company.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 20 | 3 contacts → | ||||
Exact match “BROSTAR was founded to provide various Oil and Gas services, ranging from Subsea Engineering, Subsea Inspection, Offshore Vessel to Procurements, Rovs and Diving services within…” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 21 | 3 contacts → | ||||
Exact match “Bounty Developments Ltd is an oil & energy company.” Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
| 22 | 2 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 15, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “offshore oil and gas companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 22 of 46 offshore oil and gas companies based in Canada
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Offshore oil and gas companies based in Canada at a glance
As of Sep 15, 2026Companies by employee count
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 46 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 “offshore 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 660 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 15, 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 “offshore oil and gas companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many offshore oil and gas companies are there based in Canada?
RevenueBase identified 46 company matches for offshore 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 offshore oil and gas companies?
Calgary leads with 25 company records, followed by Vancouver (4) and St. Johns (3).
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 660 professional contacts with verified work emails tracked across these 46 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 15, 2026.
Ready to reach these companies? Verified emails and direct dials for all 46 offshore oil and gas companies based in Canada. Start with a free account, no credit card.
Download this list →Related lists
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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.
More company lists
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Company intelligence · public preview
Top 22 offshore oil and gas companies based in Canada
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 46 matching company records for offshore oil and gas companies based in Canada, with 2,323 tracked contacts and 660 verified work emails.
This public preview shows 22 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 15, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 22 offshore oil and gas companies based in Canada
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Gran Tierra Energygrantierra.comHQ: Calgary, AB, CanadaReported employees: 501-1,000 | Calgary, AB, Canada | 501-1,000 | Exact match | 785 contacts → |
“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 description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Atlantic Towingatlantictowing.comHQ: Saint John, NB, CanadaReported employees: 501-1,000 | Saint John, NB, Canada | 501-1,000 | Exact match | 194 contacts → |
“Atlantic Towing is a leading provider of Offshore Supply, Port and Coastal marine services, operating in the North Atlantic, South Atlantic, Arctic and Pacific Coastal regions, as…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Tamarack Valley Energy LTD TVEtamarackvalley.caHQ: Calgary, AB, CanadaReported employees: 51-200 | Calgary, AB, Canada | 51-200 | Exact match | 156 contacts → |
“Tamarack Valley Energy Ltd (TVE) is an oil & energy company based out of, Calgary, Alberta, Canada.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | International Petroleum Corpinternational-petroleum.com HQ: Vancouver, BC, CanadaReported employees: 51-200 | Vancouver, BC, Canada | 51-200 | Exact match | 155 contacts → |
“International Petroleum Corp.(IPC) is an international oil and gas exploration and production company with a high quality portfolio of assets located in Canada, Europe and South…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Valeura Energy INCvaleuraenergy.comHQ: Calgary, AB, CanadaReported employees: 51-200 | Calgary, AB, Canada | 51-200 | Exact match | 131 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 6 | Oando Energy Resources INCoandoenergyresources.com HQ: Calgary, AB, CanadaReported employees: 51-200 | Calgary, AB, Canada | 51-200 | Exact match | 61 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 7 | Petro-Canada Fuelspetro-canada.ca HQ: Ottawa, ON, CanadaReported employees: 51-200 | Ottawa, ON, Canada | 51-200 | Exact match | 58 contacts → |
“Petro-Canada Fuels is an oil and gas company based out of 1985 Merivale Road, Ottawa, Ontario, Canada.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Siem Offshore Canadasiemoffshore.com HQ: Dartmouth, NS, CanadaReported employees: 51-200 | Dartmouth, NS, Canada | 51-200 | Exact match | 55 contacts → |
“Siem Offshore manages a harsh-weather fleet of offshore support vessels servicing major offshore energy companies.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | CGX Energy INCcgxenergy.com HQ: Toronto, ON, CanadaReported employees: 51-200 | Toronto, ON, Canada | 51-200 | Exact match | 35 contacts → |
“CGX is a publicly traded (TSX-V|OYL) Canadian oil and gas exploration company that holds an interest in the Corentyne block in the Guyana Basin; a proven petroleum basin with over…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Cooec Canadacooec.startdate.caHQ: Clagary, AB, CanadaReported employees: 51-200 | Clagary, AB, Canada | 51-200 | Exact match | 29 contacts → |
“COOEC is now one of the largest EPCI contractors for the offshore oil and gas industry in North America.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Prostar Energyprostarwell.com HQ: Calgary, AB, CanadaReported employees: 51-200 | Calgary, AB, Canada | 51-200 | Exact match | 17 contacts → |
“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…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Westbrick Energy LTDwestbrick.caHQ: Calgary, AB, CanadaReported employees: 11-50 | Calgary, AB, Canada | 11-50 | Exact match | 16 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Headwater Explorationheadwaterexp.com HQ: Calgary, AB, CanadaReported employees: 11-50 | Calgary, AB, Canada | 11-50 | Exact match | 16 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 |  Western Basin Energy Corporationwestern-basin.comHQ: Calgary, AB, CanadaReported employees: 11-50 | Calgary, AB, Canada | 11-50 | Exact match | 13 contacts → |
“Exploration & Production” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Barnwell Of Canada, Limitedbocl.caHQ: Calgary, AB, CanadaReported employees: 11-50 | Calgary, AB, Canada | 11-50 | Exact match | 13 contacts → |
“Barnwell Of Canada, Limited is an Oil & Gas Company based in the City of Calgary, Alberta, Canada.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Tangle Creek Energy LTDtanglecreekenergy.comHQ: Calgary, AB, CanadaReported employees: 11-50 | Calgary, AB, Canada | 11-50 | Exact match | 10 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 |  Seabase Newfoundland Limitedseabasenl.comHQ: St. John's, NL, CanadaReported employees: 201-500 | St. John's, NL, Canada | 201-500 | Exact match | 10 contacts → |
“Seabase Newfoundland Limited - Where Expectations Meet Excellence.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Nabors Drilling Limitedpsypr.com HQ: Brooks, AB, CanadaReported employees: 11-50 | Brooks, AB, Canada | 11-50 | Exact match | 9 contacts → |
“Nabors Drilling Limited is a company based out of 551 Industrial Rd, Brooks, AB, Canada.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Record Resources INCrecordgoldcorp.com HQ: Montreal, QC, CanadaReported employees: 1-10 | Montreal, QC, Canada | 1-10 | Exact match | 4 contacts → |
“Record Resources (http://recordgoldcorp.com) is a Canadian lithium and gold exploration company.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Brostar International LTDbrostar.ca HQ: Surrey, BC, CanadaReported employees: 51-200 | Surrey, BC, Canada | 51-200 | Exact match | 3 contacts → |
“BROSTAR was founded to provide various Oil and Gas services, ranging from Subsea Engineering, Subsea Inspection, Offshore Vessel to Procurements, Rovs and Diving services within…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Bounty Developments LTDbountydev.com HQ: Calgary, AB, CanadaReported employees: 11-50 | Calgary, AB, Canada | 11-50 | Exact match | 3 contacts → |
“Bounty Developments Ltd is an oil & energy company.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Grove Contract Operating LTDgcoltd.ca HQ: Strathmore, AB, CanadaReported employees: 11-50 | Strathmore, AB, Canada | 11-50 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 22 of 46 company matches
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Offshore oil and gas companies: dataset insights
September 15, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
46 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 46 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 15, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for offshore oil and gas companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many offshore oil and gas companies did RevenueBase find based in Canada?
The saved snapshot records 46 matching company records, 2,323 tracked contacts and 660 verified emails. The public preview displays 22 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 15, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Offshore oil and gas companies by geography
- Offshore oil and gas companies based in Australia
- Offshore oil and gas companies based in Brazil
- Offshore oil and gas companies based in Egypt
- Offshore oil and gas companies based in India
- Offshore oil and gas companies based in Indonesia
- Offshore oil and gas companies based in Malaysia
- Offshore oil and gas companies based in Mexico
- Offshore oil and gas companies based in the Netherlands
- Offshore oil and gas companies based in Nigeria
- Offshore oil and gas companies based in Norway
- Offshore oil and gas companies based in Singapore
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Cite this list
RevenueBase Data Team. Top 22 offshore oil and gas companies based in Canada. Snapshot: September 15, 2026. https://revenuebase.ai/companies/offshore-oil-and-gas-companies/canada.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Offshore oil and gas companies based in Australia
- Offshore oil and gas companies based in Brazil
- Offshore oil and gas companies based in Egypt
- Offshore oil and gas companies based in India
- Offshore oil and gas companies based in Indonesia
- Offshore oil and gas companies based in Malaysia
Company intelligence · public preview
Top 22 offshore oil and gas companies based in Canada
RevenueBase records 46 matching company records for offshore oil and gas companies based in Canada, with 2,323 tracked contacts and 660 verified work emails.
This public preview shows 22 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 15, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 22 offshore oil and gas companies based in Canada
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Gran Tierra Energygrantierra.com HQ: Calgary, AB, CanadaReported employees: 501-1,000 | Calgary, AB, Canada | 501-1,000 | Exact match | 785 contacts → |
“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 description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Atlantic Towingatlantictowing.com HQ: Saint John, NB, CanadaReported employees: 501-1,000 | Saint John, NB, Canada | 501-1,000 | Exact match | 194 contacts → |
“Atlantic Towing is a leading provider of Offshore Supply, Port and Coastal marine services, operating in the North Atlantic, South Atlantic, Arctic and Pacific Coastal regions, as…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Tamarack Valley Energy LTD TVEtamarackvalley.ca HQ: Calgary, AB, CanadaReported employees: 51-200 | Calgary, AB, Canada | 51-200 | Exact match | 156 contacts → |
“Tamarack Valley Energy Ltd (TVE) is an oil & energy company based out of, Calgary, Alberta, Canada.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | International Petroleum Corpinternational-petroleum.com HQ: Vancouver, BC, CanadaReported employees: 51-200 | Vancouver, BC, Canada | 51-200 | Exact match | 155 contacts → |
“International Petroleum Corp.(IPC) is an international oil and gas exploration and production company with a high quality portfolio of assets located in Canada, Europe and South…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Valeura Energy INCvaleuraenergy.com HQ: Calgary, AB, CanadaReported employees: 51-200 | Calgary, AB, Canada | 51-200 | Exact match | 131 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 6 | Oando Energy Resources INCoandoenergyresources.com HQ: Calgary, AB, CanadaReported employees: 51-200 | Calgary, AB, Canada | 51-200 | Exact match | 61 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 7 | Petro-Canada Fuelspetro-canada.ca HQ: Ottawa, ON, CanadaReported employees: 51-200 | Ottawa, ON, Canada | 51-200 | Exact match | 58 contacts → |
“Petro-Canada Fuels is an oil and gas company based out of 1985 Merivale Road, Ottawa, Ontario, Canada.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Siem Offshore Canadasiemoffshore.com HQ: Dartmouth, NS, CanadaReported employees: 51-200 | Dartmouth, NS, Canada | 51-200 | Exact match | 55 contacts → |
“Siem Offshore manages a harsh-weather fleet of offshore support vessels servicing major offshore energy companies.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | CGX Energy INCcgxenergy.com HQ: Toronto, ON, CanadaReported employees: 51-200 | Toronto, ON, Canada | 51-200 | Exact match | 35 contacts → |
“CGX is a publicly traded (TSX-V|OYL) Canadian oil and gas exploration company that holds an interest in the Corentyne block in the Guyana Basin; a proven petroleum basin with over…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Cooec Canadacooec.startdate.ca HQ: Clagary, AB, CanadaReported employees: 51-200 | Clagary, AB, Canada | 51-200 | Exact match | 29 contacts → |
“COOEC is now one of the largest EPCI contractors for the offshore oil and gas industry in North America.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Prostar Energyprostarwell.com HQ: Calgary, AB, CanadaReported employees: 51-200 | Calgary, AB, Canada | 51-200 | Exact match | 17 contacts → |
“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…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Westbrick Energy LTDwestbrick.ca HQ: Calgary, AB, CanadaReported employees: 11-50 | Calgary, AB, Canada | 11-50 | Exact match | 16 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Headwater Explorationheadwaterexp.com HQ: Calgary, AB, CanadaReported employees: 11-50 | Calgary, AB, Canada | 11-50 | Exact match | 16 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 | Western Basin Energy Corporationwestern-basin.com HQ: Calgary, AB, CanadaReported employees: 11-50 | Calgary, AB, Canada | 11-50 | Exact match | 13 contacts → |
“Exploration & Production” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Barnwell Of Canada, Limitedbocl.ca HQ: Calgary, AB, CanadaReported employees: 11-50 | Calgary, AB, Canada | 11-50 | Exact match | 13 contacts → |
“Barnwell Of Canada, Limited is an Oil & Gas Company based in the City of Calgary, Alberta, Canada.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Tangle Creek Energy LTDtanglecreekenergy.com HQ: Calgary, AB, CanadaReported employees: 11-50 | Calgary, AB, Canada | 11-50 | Exact match | 10 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 | Seabase Newfoundland Limitedseabasenl.com HQ: St. John's, NL, CanadaReported employees: 201-500 | St. John's, NL, Canada | 201-500 | Exact match | 10 contacts → |
“Seabase Newfoundland Limited - Where Expectations Meet Excellence.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Nabors Drilling Limitedpsypr.com HQ: Brooks, AB, CanadaReported employees: 11-50 | Brooks, AB, Canada | 11-50 | Exact match | 9 contacts → |
“Nabors Drilling Limited is a company based out of 551 Industrial Rd, Brooks, AB, Canada.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Record Resources INCrecordgoldcorp.com HQ: Montreal, QC, CanadaReported employees: 1-10 | Montreal, QC, Canada | 1-10 | Exact match | 4 contacts → |
“Record Resources (http://recordgoldcorp.com) is a Canadian lithium and gold exploration company.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Brostar International LTDbrostar.ca HQ: Surrey, BC, CanadaReported employees: 51-200 | Surrey, BC, Canada | 51-200 | Exact match | 3 contacts → |
“BROSTAR was founded to provide various Oil and Gas services, ranging from Subsea Engineering, Subsea Inspection, Offshore Vessel to Procurements, Rovs and Diving services within…” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Bounty Developments LTDbountydev.com HQ: Calgary, AB, CanadaReported employees: 11-50 | Calgary, AB, Canada | 11-50 | Exact match | 3 contacts → |
“Bounty Developments Ltd is an oil & energy company.” Recorded description excerpt · September 15, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Grove Contract Operating LTDgcoltd.ca HQ: Strathmore, AB, CanadaReported employees: 11-50 | Strathmore, AB, Canada | 11-50 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 22 of 46 company matches
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Offshore oil and gas companies: dataset insights
September 15, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
46 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 46 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 15, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for offshore oil and gas companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many offshore oil and gas companies did RevenueBase find based in Canada?
The saved snapshot records 46 matching company records, 2,323 tracked contacts and 660 verified emails. The public preview displays 22 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 15, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 22 offshore oil and gas companies based in Canada. Snapshot: September 15, 2026. https://revenuebase.ai/companies/offshore-oil-and-gas-companies/canada.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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