Saturday, August 22, 2009

From North to South: How Norman Wells led to Leduc

I delivered this presentation to The International Commission on the History of Geological Sciences, August 11, 2009

Synopsis: In Canada’s early years, important hydrocarbon discoveries occurred almost independently of settlement. In the frontiers, of course, that pattern continues. The relationship between Norman Wells and Alberta’s post-war discovery at Leduc is one example of a pattern that turns on its head the American model of petroleum development. Remote exploration has always played a critical role in our industry’s development.

It would be easy to think of Canada’s petroleum industry as one that began in the south, grew wealthy, then began exploring and developing more remote lands. That is indeed a realistic caricature of the US industry, but in Canada the story was different. The most important oil discovery prior to Leduc actually took place just south of the Arctic Circle. In a drama worthy of the great white north, that discovery led directly to the creation of Canada’s modern petroleum industry.
By Peter McKenzie-Brown
Before I address the major topic of my presentation today, I would like to suggest an idea about the development of Canada’s petroleum industry compared to that in the United States. Simply put, the patterns of petroleum industry development in the two countries paralleled their respective patterns of settlement.

As you know, the US takes up the best temperate lands along the eastern seaboard, and there are no major barriers to settlement between New York and San Francisco. The Cordillera is a problem, but settlement in the far west was still not seriously hindered – especially after the construction of the transcontinental railways. That pattern exactly reflects the development of the US petroleum industry. In the US there are many sedimentary basins – smallish, but regularly spaced across the country. Once Colonel Drake drilled his historic well, the American petroleum industry developed with patterns of settlement.

Canada has quite a different geography. Settlement was difficult in this country because of the predominance of the Canadian Shield, which provided barriers in many ways. Trapped between the Shield and the Cordillera, the Western Canada sedimentary basin is far bigger than the many on-shore basins in the US. Because of the Shield, it is well separated from the small basins in eastern and central Canada. The Shield and our northern latitudes created what I call the coureurs du bois model of how the Canadian industry developed.

In case you don’t know the expression, coureurs du bois were fur traders who earned their livelihoods with the aid of canoe transport along our mostly northward-flowing rivers. They played a big role in the creation of Canada. For example, from remote northern locations they brought information about resource potential to our political and commercial centres.

Partly because of their efforts, our earliest hydrocarbons were found in outposts of settlement. Consider our Oil Springs discovery, for example, which was contemporaneous with Colonel Drake’s 1859 well. Based on investigation into the well-known gum beds near Black Creek, the Oil Springs discovery took place on the north shore of Lake Erie – in an area without roads, but along the transportation and trading system afforded by the Great Lakes.

Alberta’s first recorded natural gas find came in 1883 from a well at CPR siding No. 8 at Langevin, near Medicine Hat. This well was one of a series drilled at scattered points along the railway to get water for the Canadian Pacific Railway’s steam-driven locomotives. The unexpected gas flow caught fire and destroyed the drilling rig. The discovery took place as we built our first transcontinental railway – itself an effort to settle our empty prairies before the Americans did the job for us.

The Athabasca oil sands were already well known – in fact, the first recorded mention of Canada’s bitumen deposits goes back to a Hudson’s Bay Company record of June 12, 1719. Hoping to find light oil beneath the sands, in the late 19th century Ottawa undertook a drilling program to help define the region’s resources. Using a rig taken north by river, in 1893 contractor A.W. Fraser began drilling for liquid oil at Athabasca, where the oil sands had been known for centuries. In 1897 he moved the rig to Pelican Rapids, also in northern Alberta. There it struck natural gas at 250 metres. But the well blew wild, flowing huge volumes of gas for 21 years. It was not until 1918 that a crew succeeded in killing the well.

These few examples illustrate my point. Quite unlike the situation in the US, Canada’s early hydrocarbon exploration took place along transportation corridors rather than in settled areas. The country had been well explored during the fur trade era, but settlements were still few and far apart. That pattern is in evidence in the case of Norman Wells, to which I now turn my attention.

Ask any of Canada’s exploration professionals when Western Canada’s oil industry began, and you will get one of two answers. The first is the Dingman #1 discovery, which began disgorging wet gas at Turner Valley in 1914. The second is Imperial’s 1947 oil discovery at Leduc. The more thoughtful industrial historian would probably say Dingman was the critical event for the industry’s early years, while the modern era began at Leduc.

I want to suggest that another event was equally pivotal. The year was 1914. The occasion was an expedition down the Mackenzie River by a British geologist, Dr. T.O. Bosworth. There are direct links between that trip and the modern industry’s birth.

The Bosworth Expedition: Two Calgary businessmen, F.C. Lowes and J.K. Cornwall, commissioned Bosworth’s journey. They wanted to investigate the petroleum potential of northern Alberta and beyond, and to stake the most promising claims. Bosworth did not disappoint. His confidence that the north was highly prospective is apparent on almost every page of his 69-page report.

Bosworth’s own words suggest how ambitious the expedition was. “The undertaking was planned in March 1914,” he says. “In April I consulted with the officers of the Government Geological Survey and other Departments in Ottawa and gathered from them all available information; maps and literature bearing on the subject.

“At the beginning of May, I journeyed from London to Canada accompanied by three assistant geologists and surveyors, and on May 19th, the expedition set out from Edmonton to travel northwards in the Guidance of the Northern Trading Company. We returned to Edmonton September 24th.”

During that period, the Bosworth expedition covered huge distances. And according to his report, there were excellent exploration prospects in three general regions: “The Mackenzie River between Old Fort Good Hope and Fort Norman; the Tar Springs District on the Great Slave Lake; and in the Tar Sand District on the Athabasca River.”

His report offered concise, well-written geological descriptions of rocks, formations and structures. It also included chemical reports on both rocks and oil from the many seepages in the area. Some of his greatest praise came from investigations north of Norman Wells, areas which to this day have not yielded a major oil discovery. “Near Old Fort Good Hope (lat. 67 30’) in the banks of a tributary stream, the shales are well exposed ... from the fossils it is evident that the shales are of Upper Paleozoic Age and probably belong to the Upper Devonian,” he said. “This remarkable series of Bituminous Shales and Limestones, of such thickness and of such richness contains the material from which a vast amount of petroleum might be generated and might pass into an overlying porous rock. It is admirable as an oil generating formation.”

In a discussion of the evidence of good reservoir rock, Bosworth points to a nearby occurrence of “gray clay shales and shaley sandstone,” and to another of “greenish shaley sandstone containing occasional fossils – corals, chenetes and rhynconella.”

Both of the reservoir rocks Bosworth speculates upon lie above the Devonian shales. He was looking specifically for “overlying porous rock” to form the reservoir. It does not seem to have occurred to him that reefs within the shales could have served as reservoirs, even though he specifically noted the presence of Devonian corals.

Before I turn to the outcome of this expedition, which was quite important, I would like to share with you the business advice he gave his clients in the conclusion to his general report. “To avoid all competition,” he said, “I strongly advise that you form a controlling company or syndicate containing the most influential men. I recommend particularly that you arrange matters in such a way that it would be to the obvious advantage of every oil man to join you, and that you freely provide the opportunity so that the Company may include every man who wishes to venture anything in the exploitation of the oilfields of the North. By this means alone can you hope to avoid competition and the unfortunate results which must follow….”

In his report Bosworth noted that he had “investigated” the discovery at Turner Valley. Fifteen months in the drilling, the wet gas discovery came in on May 14, 1914 – just before Bosworth left Edmonton on his expedition. Within 20 years, that discovery would be recognized as “the largest oilfield in the British Empire.” Bosworth, however, was not impressed. In his view, the real potential was in the North.

Believing Turner Valley was doomed to disappoint explorers, he wrote that that “there are a number of oil companies in Western Canada who have capital in hand which must be spent on drilling wells. At this moment they are faced with failure (at Turner Valley), and might gladly turn to any region where there is a genuine reason to expect oil. Any such companies might become associated with your controlling company to the obvious advantage of all parties, on terms which can be mutually arranged...”

After further commentary, he advises his clients in these words: “You would also provide for the transportation; the necessary railroads; the pipe lines, the refineries, and, what is more important than all the rest, and which would give you complete command of the whole situation, all of the oil produced in the region would pass through your hands to be marketed by you.

“If you could succeed in promoting a great scheme on some such lines as these, no smaller rival group could hope to compete against you, and you might eventually be in the position to control the great oil fields of the North.”

One of the great ironies of these comments, of course, is that they came barely three years after the Standard Oil Trust was dismantled for just such anti-competitive practices. In addition, Bosworth completely misread the importance of Turner Valley and the petroleum potential of Alberta, so smitten was he by the North. The practical value of his advice may be seen in the fact that seven decades elapsed before oil from the Norman Wells oilfield actually began flowing to southern markets.

Now, let us push on with our story. Bosworth does not remark on the coming of World War I. However, when he and his men left the world was at peace; when he returned, Europe and the British Empire had become embroiled in that terrible war. He was probably totally unaware of those developments while in the north.

The exigencies of war postponed exploration of Bosworth’s claims. So did the Dingman discovery. The petroleum industry by this time was focused on Turner Valley field development, where standard practice was to strip naphtha from the gas stream and flare the gas itself. By 1918 an Imperial Oil subsidiary, The Northwest Company, had acquired the properties Bosworth had staked for his clients. Imperial had hired Bosworth himself as chief geologist. The company decided to drill on one of those claims.

Imperial Oil Limited’s legendary exploration geologist, Ted Link, led the drilling expedition. By train, scow and riverboat, he and his crew followed Bosworth’s route north to Fort Norman, just south of the Arctic Circle. They had taken with them the wherewithal to assemble a cable-tool drilling rig, and they soon set to work. One valuable member of the party was an ox, which supplied heavy labour during the summer. As the autumn cold began killing off the forage, he delivered steaks and stew.

Before moving on, it is worth noting that the most important early geological work at Norman Wells, including the location of the discovery well, needs to be attributed to Ted Link – not to T.O. Bosworth. In an important 1947 presentation to the AAPG, J.S. Stewart of the Geological Survey of Canada is adamant on this point.

Canol: Imperial’s first well brought in the great Norman Wells discovery, in 1920. However, there was no practical way to get the oil to market. Because demand in the Northwest Territories was marginal, Imperial had little reason to develop the field. However, later in the decade the company constructed a tiny refinery at Norman Wells to supply gasoline and other products to missions, mines, riverboats and other local customers. The company did not need many wells to meet local needs, and did little investigation of the geology of the reservoir.

That changed after Pearl Harbor. When the Americans came into the Second World War, they were extremely concerned about having secure local fuel supplies in the North, especially after Japan took control of a couple of Alaska’s Aleutian islands. They therefore worked with Canada to develop Norman Wells into a source of local oil supply for a refining and distribution complex. This was the beginning of the Canol Project. The name supposedly comes from the contraction of “Canadian” and “oil”, but I suspect the second syllable is actually “oil” with a Texas accent.

Construction crews built a 950-kilometre oil pipeline over the Mackenzie Mountains to a newly constructed refinery in Whitehorse, in the Yukon Territory. The pipeline was built over some of the most difficult terrain in the country, and much of the work had to be done in bitter cold. Crews also laid product pipelines to Skagway, Alaska. In total, they constructed 2,560 kilometres of pipeline.

By any standard those lines were terrible. The line ran on top of the ground, alongside the road, often without supports. Vulnerable to frost heaving, snowstorms and flooding, the Canol pipelines were not designed for extreme cold. They were neither installed nor handled properly, and they failed frequently. The crude oil pipeline leaked onto the permafrost. So did the product pipelines, which delivered diesel and gasoline to a fuelling station in Skagway, Alaska.

To meet the needs of the refinery, Imperial drilled more wells, and began to better understand the Norman Wells reservoir. Of particular note, the company discovered that it was a Devonian reef – of earlier vintage than the Leduc and Redwater fields soon to be discovered in Alberta, but still a Devonian reef. That turned out to be the geological key.

By the time the refinery was ready to begin operations, the company had drilled 60 productive wells out of 67 project wells in total. The test for the field came on February 16, 1944 when the pipeline began operating. As a producer of good-quality oil (39° to 41° API), the field surpassed expectations. By October 1944 Norman Wells was producing 4,600 barrels per day by natural pressure.

The extraordinary Canol project did not contribute meaningfully to the war effort. The threat to west coast shipping had disappeared and it was clear that the war would soon be won. First oil flowed through the pipeline in 1944, and the refinery operated for less than a year before being mothballed. Perhaps Canol was the greatest white elephant in petroleum history.

No one really knows how much the project cost – estimates range up to US$300 million, all paid by American taxpayers. However, for the following calculations I will use one of the conservative estimates: $134 million. Total oil production was about 1.5 million barrels. In as-spent dollars, therefore, it cost $89.33 per barrel. The Whitehorse refinery only produced 866,670 barrels of refined product. Dividing that by total project cost, you get $0.97 per litre.

Now, let’s adjust those numbers by official consumer price inflation in the United States. In today’s money, the oil would cost $982 a barrel. The refined products would cost $10.69 a litre. And that’s before taxes!

Later studies of the project’s environmental impact in Whitehorse were revealing. The Canol legacy included the creation of an environmental horror known locally as the Maxwell Tar Pit. Appalling disposal and clean-up practices during the Canol debacle had created an oily mess that was declared an environmentally contaminated site in 1998. Forty years earlier, a man had stumbled into the pit and got stuck. He later died in hospital.

Although Canol had little impact on affairs of state, it had a huge impact on oil development in Western Canada. As the result of wartime field development at Norman Wells, Imperial learned that the field’s reservoir rock was Devonian reef. Armed with this knowledge, the company’s geologists – led by Ted Link, who by this time was in charge of Imperial’s exploration efforts – rethought their approach to Western Canada.

This was an important example of thinking outside the box. Other oilmen at the time were on the hunt for big plays that looked, walked and talked like Turner Valley. They would be roughly 340 million years old. They would be thrusted anticlines of Paleozoic age in a Mississippian formation. Much fruitless drilling in the foothills sought the next Turner Valley.

Perhaps we should not give all the credit to Imperial Oil for the geological idea that there might be Devonian reefs in Alberta. In an email, my friend Clint Tippett asked whether GSC mapping of the Rockies west of Edmonton – work undertaken by Helen Belyea, Digby Maclaren and others – influenced Imperial’s thinking. Before the Leduc discovery, Charles Stelck at the University of Alberta also gave thought to the question of Devonian reefs in Alberta.

However Imperial arrived at its revolutionary idea, the importance of its decision to drill for a reef cannot be understated. That geological idea brought forth a series of great discoveries. The first came with the aid of primitive seismic technology, and it was a big one – the famous Leduc #1 discovery well. When it came in to much fanfare on February 21, 1947, Leduc laid the groundwork for one of the world’s great post-war oil booms.

There is another important connection between post-war oil development in Alberta and the Canol project. The refinery built in Whitehorse played an important role in Alberta’s industrial development. Imperial bought the mothballed refinery for one dollar, dismantled it and moved it to Strathcona, near Edmonton. There, the company reassembled it to handle production from Leduc and other post-war discoveries. That refinery laid the foundation for one of Canada’s biggest refining complexes.

As I leave this discussion, a final piece of trivia. Although Imperial is the hero of this drama, I understand that the company’s geologists mapped the Leduc reefs at a 90° angle to their actual orientation. After mapping them correctly, Texaco came to have the dominant position in the Leduc chain of reefs.

The Norman Wells story illustrates a pattern that turns on its head the American model of petroleum industry development. Briefly put, remote exploration has played a critical role in the industry’s development since the earliest years of oil and gas exploration in this country. Bosworth was wrong in important areas. However, his work greatly influenced that of his successor, Ted Link, who ultimately proved that Devonian reefs were an important key to Canada’s petroleum wealth. That change in thinking paved the way for a series of discoveries which represented the birth of the modern petroleum industry in Canada.

It would be easy to think of Canada’s petroleum industry as one that began in southern Ontario and Alberta, grew wealthy, then began exploring and developing its frontiers. But this model doesn’t fit the facts. Key discoveries and developments took place in remote regions. In the sector’s early years, important discoveries occurred almost independently of settlement, and a great deal of oil and gas development continues to take place in sparsely populated areas. In our frontiers, of course, that pattern is fully intact.

If not for the Bosworth report, Canada’s petroleum industry would have had quite a different history. Imperial Oil’s efforts were heroic – indeed the stuff of legend. Enormously frustrated with its unbroken string of 133 dry holes, Imperial planned the program that yielded Leduc as its last major wildcat play in Alberta. If Leduc had not come in, it is easy to imagine the Devonian oil fields lying fallow for many, many years. No other big players were exploring the prairies.

In the actual case, however, oilmen around the world soon became aware of this important new discovery, and they began to bring expertise and investment into the province. They created one of the first great post-war oil booms, and helped lay the foundation for one of the world’s most diverse and technically advanced petroleum industries.

In respect to its long-term impact, T.O. Bosworth’s 1914 report may have been the most influential geological document in Canadian history. I hope my brief comments today have given you reason to consider that claim.


1. T.O. Bosworth, 1914; “The Mackenzie River between Old Fort Good Hope and Fort Norman; the Tar Springs District on the Great Slave Lake; and in the Tar Sand District on the Athabasca River.”Available at the Glenbow Archives, Calgary; reference number M-8656; 69 pages.
2. J.S. Stewart, 1948; “Norman Wells Oil Field, Northwest Territories, Canada”; in Structure of Typical American Oil Fields, Volume III, pp. 86-109; original paper read before an AAPG meeting in Wichita, Kansas, on January 18, 1947.
3. Peter McKenzie-Brown, 1988; “Two Historical Documents: Notes for an Address to the Petroleum History Society”; online at
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