Supertest Petroleum Limited was a Canadian petroleum company that operated from 1923 to 1973. Its head office was in
London, Ontario
London (pronounced ) is a city in southwestern Ontario, Canada, along the Quebec City–Windsor Corridor. The city had a population of 422,324 according to the 2021 Canadian census. London is at the confluence of the Thames River, approximate ...
. It marketed itself as "Canada's All-Canadian Company", and was acquired by
BP Canada
BP Canada was a Canadian petroleum company and subsidiary of BP, British Petroleum that operated between 1955 and 1992. The name refers to a group of companies that engaged in various segments of the petroleum industry lifecycle. BP entered the Ca ...
in 1971.
History
John Gordon Thompson (1894-1982), an operator of automobile service centres and manufacturer of tire repair and gasoline pumps, formed London Automotive Service Ltd. with James D. Good on 13 March 1923. They purchased the assets of the Energy Oil Company for $10,000. Energy Oil Company owned a run-down gas station on Dundas St. E. in London, Ontario, a bulk storage plant in London, and two fuel delivery tank trucks. Thompson was elected president and Good was named vice-president and secretary/treasurer. They adopted "Supertest" as the trademark name of their gasoline.
On 23 May 1923, Supertest opened it first gasoline station at 362 Dundas Street E. Gas sold for 31 cents/gallon), and the station sold
Mobil
Mobil is a petroleum brand owned and operated by American oil and gas corporation ExxonMobil. The brand was formerly owned and operated by an oil and gas corporation of the same name, which itself merged with Exxon to form ExxonMobil in 1999.
...
oil lubricants. The new company was not a refiner and sourced its gasoline and oil from
Imperial Oil
Imperial Oil Limited (French: ''Compagnie Pétrolière Impériale Ltée'') is a Canadian petroleum company. It is Canada's second-biggest integrated oil company. It is majority owned by American oil company ExxonMobil with around 69.6 percent ...
Ltd.
In 1924, Supertest opened subsidiary companies in
Hamilton Hamilton may refer to:
People
* Hamilton (name), a common British surname and occasional given name, usually of Scottish origin, including a list of persons with the surname
** The Duke of Hamilton, the premier peer of Scotland
** Lord Hamilt ...
and
Ottawa
Ottawa (, ; Canadian French: ) is the capital city of Canada. It is located at the confluence of the Ottawa River and the Rideau River in the southern portion of the province of Ontario. Ottawa borders Gatineau, Quebec, and forms the core ...
.
On 17 December 1925, Supertest Petroleum Corporation, Limited was incorporated. A subsidiary was formed in
St. Thomas, Ontario
St. Thomas is a city in southwestern Ontario, Canada. It gained its city charter on March 4, 1881. The city is also the seat for Elgin County, although it is independent of the county.
At the time of the 2021 Census, the population of the city wa ...
. Bulk distributing plants were opened in
Glencoe,
Wingham and
Seaforth, Ontario
Seaforth (2021 population: 2,673) is a Southern Ontario community in the municipality of Huron East, in Huron County, Ontario, Canada.
History
Originally known as ''Four Corners'' and ''Steene's Corners'' after an early settler, much of the a ...
.
In 1926, Supertest bought the Ensign Oil Company of Montreal, opened a bulk distributing plant at
Port Robinson, Ontario, and amalgamated all of the subsidiaries companies into one major company known as "Supertest Petroleum Corporation Limited". Supertest registered the trademark "Hi Compression" for its new gasoline.
In 1928, a tank ship, the M.S. ''Supertest'', was put into operation. It made deliveries to Kingston, Ottawa and Montreal until it was sold shortly after World War II.
In 1932, Supertest registered the trademark "Wonder Gasoline".
From 1928 to 1936, the company opened new divisions and established bulk plants throughout Ontario and Quebec. By 1936, Supertest owned and operated 342 stations with over 800 dealers in Ontario and Quebec and over 5,000 consumer accounts. The company had over 100 trucks and 60 automobiles, and employed over 500 people.

In 1944, the company sponsored the first "Supertest Stake Races" harness horse race. In 1945, it began publishing ''The Maple Leaf'', a company magazine.
In 1950 James D. Good, Vice President of Supertest Oil, died. His home on the southwest corner of Waterloo Street and Epworth Avenue eventually became the music school at the
University of Western Ontario
The University of Western Ontario (UWO), also known as Western University or Western, is a Public university, public research university in London, Ontario, London, Ontario, Canada. The main campus is located on of land, surrounded by resident ...
.
In the mid-1950s, Supertest Petroleum opened an exploration office in
Calgary, Alberta. By 1971, Supertest was producing about 3,000 barrels per day, or about 10% of the sales of its gas stations
In 1966, Supertest sponsored the first Canadian tournament for the
Ladies Professional Golf Association
The word ''lady'' is a term for a girl or woman, with various connotations. Once used to describe only women of a high social class or status, the equivalent of lord, now it may refer to any adult woman, as gentleman can be used for men. Infor ...
, the
Supertest Ladies Open
The Supertest Ladies Open was a golf tournament on the LPGA Tour from 1966 to 1969. It was played in Ontario, Canada at the Sunningdale Golf Club in London from 1966 to 1967 and at the Bayview Golf & Country Club in Thornhill from 1968 to 1969. I ...
, at the Sunningdale Golf Club in London. Fifty of the world's top women golfers competed for the Supertest Trophy.
In 1971, Supertest was sold to
British Petroleum Canada (BP). The familiar Supertest maple leaf logo was modified to incorporate the BP shield and to drop the "All-Canadian" slogan. By the end of 1973, the Supertest logo and name had been phased out by BP Canada. In 1983, BP Canada was purchased by
Petro-Canada
Petro-Canada is a retail and wholesale marketing brand subsidiary of Suncor Energy. Until 1991, it was a federal Crown corporation (a state-owned enterprise). In August 2009, Petro-Canada merged with Suncor Energy, with Suncor shareholders rece ...
, which was then owned by the Government of Canada. Petro-Canada continued to use the Supertest name in their line of transmission oil lubricants through the year 2000; products since renamed to PRODURO.
References
{{Reflist
External links
*
1968 Annual Report: Supertest Petroleum Corporation, Limited' - from
McGill University
McGill University (french: link=no, Université McGill) is an English-language public research university located in Montreal, Quebec, Canada. Founded in 1821 by royal charter granted by King George IV,Frost, Stanley Brice. ''McGill Universit ...
Library
Automotive fuel retailers
Defunct companies of Ontario
Defunct oil companies
Gas stations in Canada
Oil companies of Canada
Non-renewable resource companies established in 1923
1923 establishments in Ontario
1973 disestablishments in Ontario
Canadian companies established in 1923
Defunct oil and gas companies of Canada