by Bruce Wells | Aug 19, 2026 | Petroleum Pioneers
The U.S. petroleum industry began in 1859 to meet demand for “Coal Oil” — the popular lamp fuel kerosene.
American oil history began in a valley along a creek in remote northwestern Pennsylvania. Today’s exploration and production industry was born on August 27, 1859, near Titusville when a well specifically drilled for oil found it.
Although crude oil had been found and bottled for medicine as early as 1814 in Ohio and in Kentucky in 1818, these had been drilled seeking brine. Drillers often used an ancient technology, the “spring pole.” Sometimes the salt wells produced small amounts of oil, an unwanted byproduct.

America’s first petroleum exploration company, the Pennsylvania Rock Oil Company of New York, incorporated in 1854. It reorganized as the Seneca Oil Company of New Haven, Connecticut, in 1858.
The advent of cable-tool drilling introduced the wooden derrick into the changing American landscape. The technology applied the same basic idea of chiseling a hole deeper into the earth.
Using steam power, a variety of heavy bits, and improved mechanical engineering skills, cable-tool drillers became more efficient (learn more Making Hole – Drilling Technology). (more…)
by Bruce Wells | Aug 14, 2026 | Petroleum Pioneers
The astute businesswoman who prospered in booming Pennsylvania and New York oilfields.
In 1899, Mary Byron Alford, the “Only Woman in the World who Owns and Operates a Dynamite Factory,” prospered in the midst of America’s first billion-dollar oilfield. Mrs. Alford’s oilfield nitro factory cooked 3,000 pounds of nitroglycerin every day.
The 85,000-acre Bradford oilfield in north-central McKean County, Pennsylvania, and south-central Cattaraugus County, New York, remains an important part of U.S. petroleum heritage. There are many reasons, including Mary Alford’s pioneering oilfield career at the turn of the century.

Penn-Brad Oil Museum Director Sherri Schulze in 2005 exhibited a laminated (though wrinkled) newspaper article from 1899. “This was done by a student many years ago,” she said. “It was a school project done by one of Mrs. Alford’s descendants.”
(more…)
by Bruce Wells | Jul 16, 2026 | Energy Education Resources
Geologist tracks down first references to petroleum.
Petroleum geologist and historian Raymond P. Sorenson spent much of his professional career writing about petroleum exploration and production. After a 30-year career with Anadarko Petroleum, in 2006 he retired to further explore his fascination with the industry’s history.
Among Sorenson’s ongoing projects is documentation of the earliest signs of oil worldwide, including references to hydrocarbons long before the 1859 first U.S. oil well drilled 69.5 feet into the Venango sands of Pennsylvania.
He has since documented the earliest signs of oil worldwide, including references to hydrocarbons long before the 1859 first U.S. oil well drilled 69.5 feet into the Venango sands of Pennsylvania.
About three centuries earlier, a Spanish expedition in the Gulf of Mexico led by Don Luis de Moscoso landed at the mouth of the Sabine River in the future state of Texas. The New World explorers in 1543 discovered Indians had for centuries utilized natural seeps to waterproof canoes, apply to abrasions, and more.

A Spanish expedition in 1543 used brigantines to explore the coast of the Gulf of Mexico.
Sorenson, retired and living in Tulsa, initially focused his research on geological surveys, reports from other exploring expeditions, and scientific journals. He then progressed to references cited by others and concentrated his efforts on North America and English language sources — the most readily available — but discovered rare sources as well.
Oil in Antiquity to Today
The petroleum geologist’s ongoing work has added more than 740 reference pages (with captured images) of his sources for the earliest signs of hydrocarbons in North America and other parts of the world.
In 2002, Sorenson shared with the American Oil & Gas Historical Society his 59-page bibliography of “Pre-Drake” publications. “For the past few years I have been engaged in a systematic study to document what was known about oil and natural gas prior to the Drake well,” he noted.

“I have an additional list of cited references that I have not yet examined of comparable size,” Sorenson added in a follow-up email to AOGHS. “The majority are in languages other than English, and I suspect that many of them will not be accessible through my library resources (or my linguistic skill set).”
A petroleum historian and consulting geologist based in Tulsa, Oklahoma, Sorenson explained in his email to AOGHS that to aid researchers, he has been using images of every page that contains relevant material, posting the full reference information at the top, and outlining the relevant portion of the text.

An 1835 reference to signs of oil and natural gas in Massachusetts prior to the first U.S. oil well in Pennsylvania. Image courtesy Ray Sorenson.
“So far I have found relevant information in more than 550 publications with over 3,500 net pages, covering at last count 31 states, five Canadian provinces, and many foreign countries on other continents,” Sorenson noted in January. “For several topics, I have created subsets. I expect to continue to build the collection.”
In addition to antiquity references, Sorenson’s research for his “Pre-Drake Literature Collections by Subject” has thus far included:
California, Canada, Central & South America, Early Geologists, Europe, Fiction, Humboldt, Industrial & Laboratory, Initial Reactions, Kentucky, Maps & Figures, Medicinal , Middle East Asia Africa, Midwest, New England, New York, Oil & Gas Wells Pre-Drake, Ohio, West Virginia, Pennsylvania, Religious, Scientific American, Shales that Burn, Southern United States, Taylor R.C., Statistics of Coal, Textbooks, Volcanoes and Earthquakes, David Wells, Annual of Scientific Discovery, and Western United States.
Although many of his discoveries were found in obscure scholarly journals, Sorenson also found petroleum references in popular 19th-century publications. For example, the April 18, 1829, issue of “Niles’ Register” reported a Kentucky salt well driller finding oil.
“We have just conversed with a gentleman from Cumberland county, who informs us that in boring through rocks for salt water, a fountain of petroleum, or volatile oil, was struck, at the depth of 180 feet,” the Baltimore publication noted on page 117.
Gigabytes of Research
A long-time member of the American Association of Petroleum Geologists (AAPG) and the Petroleum History Institute (PHI), Sorenson has made many presentations and published academic papers with both. He submitted to PHI a paper on his history of oil and natural gas production from wells prior to 1859 for the journal Oil-Industry History.
The wells were drilled seeking water or brine, but Sorenson found one that flowed an estimated 2,500 barrels of oil per day in the 1820s. Sorenson adapted many of his contributions to AAPG for its extensive Discovery Series with “First Impressions: Petroleum Geology at the Dawn of the North American Oil Industry.”
In January 2013, Sorenson’s “Historic New York Survey Set High Geologic Standards” was published in AAPG Explorer magazine, one of his many contributions to that publication.

Sorenson, who also has assisted with AOGHS articles (see Rocky Beginnings of Petroleum Geology), noted in his email that he has no plans to provide this collection in searchable form on a website but will work with anyone who is conducting similar research.
Everything in the Sorenson collection is preserved in hard copy and digital (PDF) form, adding up to 11 feet of shelf space — about 27 gigabytes of computer memory. Sorenson intends to give his full collection of research to the Drake Well Museum and Park in Titusville, at the site where Edwin L. Drake first found oil in the upper Venango sands.
Today, the Oil Region Alliance of Business, Industry and Tourism proclaims that historic part of northwestern Pennsylvania, “The Valley that Changed the World.”
For more information about Ray Sorenson’s ongoing oil history projects and resources, post a comment below.
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First U.S. Oil Well
The 19th century science of petroleum geology began with a new industry in western Pennsylvania. A well drilled in 1859 by former railroad conductor Edwin L. Drake near Titusville sought oil for refining into kerosene, a new lamp fuel at the time made from coal.

Slowed by delays in receiving funds for what locals called “Drake’s Folly” and drilling with a steam-powered cable-tool rig, it took Drake more than a year to find oil at a depth of 69.5 feet. He also made his own innovations along the way, including adding a 10-foot cast iron pipe to the borehole.
To the relief of company founder George Bissell and investors in the Seneca Oil Company of New Haven, Connecticut, Drake completed the first U.S. oil well drilled specifically for oil. The August 27, 1859, discovery came in a geologic formation that would be called the Venango sands. A few days later, a well drilled nearby became the new petroleum industry’s first dry hole.
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Recommended Reading: Trek of the Oil Finders: A History of Exploration for Petroleum (1975); The Birth of the Oil Industry (1936); The Prize: The Epic Quest for Oil, Money & Power
(2008); Myth, Legend, Reality: Edwin Laurentine Drake and the Early Oil Industry
(2009). Your Amazon purchase benefits the American Oil & Gas Historical Society. As an Amazon Associate, AOGHS earns a commission from qualifying purchases.
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The American Oil & Gas Historical Society (AOGHS) preserves U.S. petroleum history. Please support this website, subscribe to the monthly email newsletter, and help expand our historical research. Contact bawells@aoghs.org. Copyright © 2026 Bruce A. Wells.
Citation Information – Article Title: “Sorenson Oil History Project.” Authors: B.A. Wells and K.L. Wells. Website Name: American Oil & Gas Historical Society. URL: https://aoghs.org/energy-education-resources/exploring-the-earliest-signs-of-oil. Last Updated: July 27, 2026. Original Published Date: August 5, 2020.