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near Devon, Alberta, T0C, Canada

Formally Recognized: 2007/01/19

Atlantic No. 3 Wild Well Site, near Devon (December 2005); Alberta Culture and Community Spirit, Historic Resources Management Branch, 2005
View of bald patches in the seeded field
Atlantic No. 3 Wild Well Site, near Devon (December 2005); Alberta Culture and Community Spirit, Historic Resources Management Branch, 2005
View from northwest corner of site, looking east
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Other Name(s)

Atlantic 1948 No. 3

Links and documents

Construction Date(s)

Listed on the Canadian Register: 2007/04/18

Statement of Significance

Description of Historic Place

The Atlantic No. 3 Wild Well Site is a 23.1 hectare parcel of land composed of dormant fields seeded to grass located two kilometres southeast of the Town of Devon. The scars of Alberta's greatest oilfield disaster are still evident in the bald patches in the seeded field. The site maintains its historic relation with the nearby Leduc No. 1 Discovery Well and adjacent farm lands.

Heritage Value

The heritage value of the Atlantic No. 3 Wild Well Site lies in its identity as the location of Alberta's most dramatic oilfield disaster. This disaster garnered worldwide interest and led to subsequent investment in the province's petroleum industry. It also resulted in enhanced regulatory standards and the development of new safety technology and well-control training.

1947 and 1948 were banner years for the oil and gas industry in Alberta. The blowing-in of Imperial Oil Well No. 1 (also known as Leduc No. 1) near Devon sparked interest in the province as a source of oil. Several other significant strikes established Alberta as Canada's leading petroleum producer. On January 15, 1948 drilling proved successful at tycoon Frank MacMahon's Atlantic No. 3 well, situated within sight of Leduc No. 1. Oil gushed out of the ground to a height of 150 feet. It was pressured by an estimated 15 million cubic feet per day flow. Such enormous pressure, unregulated by blow-out precautions, led on March 15 to the fracturing of the surrounding area. Natural gas and oil began to escape over a wide radius, causing serious concern and the implementation of emergency measures. On May 15, 1948 the Petroleum and Gas Conservation Board, through an Order-in-Council, took control of the well. Between March and September, over a million barrels of oil were recovered from Atlantic No. 3.

The well ran wild until September 6, when a spark from an unknown source ignited a massive conflagration. Flames leapt more than one hundred feet in the air and billows of acrid smoke could be seen for more than one hundred miles, while the whole atmosphere around most of Alberta was perceptibly darkened. Through the intervention of famous well control specialists Myron Kinley and Red Adair, the blaze was quelled by November, 1948. Major news services reported the story worldwide, and film footage from the Atlantic No. 3 Wild Well Site blaze was featured on the Movietone News in theatres. To the delight of industry leaders, this publicity conveyed the news of Alberta's extensive petroleum resources to the world market and brought international money into Alberta to finance the rapidly expanding oil industry.

After the disaster at the Atlantic No. 3 Wild Well Site, enhanced regulatory standards were mandated and initiated by the petroleum industry in Alberta. The Petroleum and Gas Conservation Board, administered by the Government of Alberta, required that the standards for blow-out prevention be upgraded and that surface casing requirements be sufficient to withstand extremely high pressures. Since the disaster, limited crop development has taken place on the Atlantic No. 3 Wild Well Site. Environmental studies have been undertaken to assess and quantify the effects of the disaster on the area's soil, and have gleaned important information for subsequent rehabilitation of other areas impacted by petroleum-related accidents. The site continues to yield scientific information.

Source: Alberta Culture and Community Spirit, Historic Resources Management Branch (File: Des. 2165)

Character-Defining Elements

The character-defining elements of the Atlantic No. 3 Wild Well Site include such elements pertaining to the relevant historic event as:
- the relative vacancy of the whole site, in particular the area surrounding the bore hole;
- the dormant surrounding fields seeded to grass;
- the unobstructed view planes from the site, especially to the west, toward the site of Leduc No. 1.




Recognition Authority

Province of Alberta

Recognition Statute

Historical Resources Act

Recognition Type

Provincial Historic Resource

Recognition Date


Historical Information

Significant Date(s)

1948/01/15 to 1948/01/15
1948/09/06 to 1948/09/06
1948/03/15 to 1948/03/15

Theme - Category and Type

Developing Economies
Technology and Engineering
Expressing Intellectual and Cultural Life
Developing Economies
Extraction and Production

Function - Category and Type


Historic or Interpretive Site


Natural Resource Extraction Facility or Site

Architect / Designer




Additional Information

Location of Supporting Documentation

Alberta Culture and Community Spirit, Historic Resources Management Branch, Old St. Stephen's College, 8820 - 112 Street, Edmonton, AB T6G 2P8 (File: Des. 2165)

Cross-Reference to Collection

Fed/Prov/Terr Identifier




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