by Bruce Wells | Jan 25, 2026 | Petroleum History Almanac
Offshore technologies advanced after Howard Hughes and CIA raised a lost Soviet submarine in 1970s.
Launched in 1972, the Glomar Explorer left behind two remarkable offshore exploration histories: a clandestine submarine recovery vessel and the world’s most advanced deep-water drill ship. The CIA’s former “ocean mining” ship ended a pioneering offshore petroleum career in 2015 at a Chinese scrapyard.
Considered a pioneer of modern drill ships, the Glomar Explorer was decades ahead of its time, working at extreme depths for the U.S. offshore petroleum industry. Relaunched in 1998 as an offshore technological phenomenon, the original Glomar Explorer had been constructed as a top-secret project of the Central Intelligence Agency.
Hughes Glomar Explorer, a custom-built “magnesium mining vessel” for the CIA that in 1974 recovered part of a Soviet submarine off Hawaii. Photo courtesy American Society of Mechanical Engineers.
CIA Project Azorian began soon after the U.S.S.R. ballistic missile submarine K-129 mysteriously sank somewhere in the deep Pacific Ocean northeast of Hawaii on March 8, 1968. The wreckage of the lost sub could never be found — or so it seemed.
Unknown to the Soviets, sophisticated U.S. Navy sonar technology would locate the K-129 on the seabed at a depth of 16,500 feet. But a salvage operation more than three miles deep was impossible with any known technology (see ROV – Swimming Socket Wrench).
The K-129 sinking presented the CIA with such an espionage opportunity that the agency convinced President Richard Nixon to approve a secret operation to attempt raising the vessel from the ocean floor.
Secretive billionaire Howard Hughes Jr. of Hughes Tool Company joined the mission, code-named Project Azorian (mistakenly called Project Jennifer in news media accounts).
The recovery effort would involve years of deception: deep ocean mining would be the cover story for construction of the Hughes Glomar Explorer.
Hughes “Ocean Mining”
Scientists and venture capitalists had long seen potential in ocean mining, but when Hughes appeared to take on the challenge, the world took notice. The well-publicized plan described harvesting magnesium nodules from record depths with a custom-built ship that would push engineering technology to new limits, typical of Hughes’ style. The story spread.
But from concept to launch, the Hughes Glomar Explorer had one purpose: Raise the sunken Soviet Golf-II class submarine from 1968 — and any ballistic missiles. Construction began in 1972 by Sun Shipbuilding and Drydock Company in a Delaware River facility south of Philadelphia. Hughes’ $350 million (about $261 billion in 2024) high-tech ship was ostensibly built to mine the sea floor.
On August 8, 1974, the “magnesium mining vessel” secretly raised part of the 2,000-ton K-129 through a hidden well opening in the hull and a “claw” of mechanically articulated fingers that used seawater as a hydraulic fluid. News about Project Azorian leaked within six months.
Seymour Hersh of the Los Angeles Times revealed the clandestine project on February 7, 1974. An investigative reporter, he had won the Pulitzer Prize in 1970 for exposing the My Lai massacre.
On February 7, 1974, the Los Angeles Times broke the story: “CIA Salvage Ship Brought Up Part Of Soviet Sub Lost In 1968, Failed To Raise Atom Missiles.”
The L.A. Times article by Pulitzer Prize-winning journalist Seymour Hersh ended the high-tech vessel’s spying career. The government transferred the Hughes Glomar Explorer to the Navy in 1976 for an extensive $2 million preparation for storage in dry dock. With its CIA days over, the vessel spent almost two decades mothballed at Suisun Bay, California.
Pioneer Drill Ship
London-based Global Marine had converted the CIA vessel for commercial use. The company hired Electronic Power Design of Houston, Texas, to work on the advanced electrical system. After almost 20 years in storage, the condition of equipment inside the ship surprised Electronic Power Design CEO John Janik.
“Everything was just as the CIA had left it,” Janik explained, “down to the bowls on the counter and the knives hanging in the kitchen. Even though all the systems were intact, this was by no means an ordinary ship.”
Janik noted in 2015 for The Maritime Executive that his company’s retrofit was “a tough job because the ship’s wiring was unlike anything we had ever seen before,” although preservation had been helped by nitrogen pumped into the ship’s interior for two decades.
Conversion work later included a Mobile, Alabama, shipyard adding a derrick, drilling equipment, and 11 positioning thrusters capable of a combined 35,200 horsepower. Completed in 1998 as the world’s largest drillship, Glomar Explorer began a long-term lease from the U.S. Navy to Global Marine Drilling for $1 million per year.
The advanced drilling ship spent the next 17 years working in deep-water sites around the globe, including Africa’s Nigerian delta, the Black Sea, offshore Angola, Indonesia, Malta, Singapore, and Malaysia.
Following a series of corporate mergers, Glomar Explorer became part of the largest offshore drilling contractor, the Swiss company Transocean Ltd. When it entered that company’s fleet, the ship was renamed GSF Explorer and in 2013 was re-flagged from Houston to the South Pacific’s Port Vila in Vanuatu.
The former top-secret CIA vessel Glomar Explorer began a record-setting career in 1998 as a technologically advanced deep-water drill ship. Photo courtesy American Society of Mechanical Engineers.
When GSF Explorer arrived at the Chinese shipbreaker’s yard in 2015, many offshore industry trade publications took notice of the ship’s demise after years of exceptional deep drilling service. The ship was “decades ahead of its time and the pioneer of all modern drill ships,” declared the Electronic Power Design CEO in The Maritime Executive article.
“It broke all the records for working at unimaginable depths and should be remembered as a technological phenomenon,” Janik concluded.
Soon after the former Glomar Explorer was sold for scrap, Tom Speight of the engineering firm O’Reilly, Talbot & Okun, reflected in a company post, “This is a shame, not only because of the ship’s nearly unbelievable history, but also because in 2006 the American Society of Mechanical Engineers designated this technologically remarkable ship a historic mechanical engineering landmark.”
The ASME award ceremony, which took place on July 20, 2006, in Houston, included members of the original engineering team and ship’s crew among the attendees. Past President Keith Thayer noted the important contributions the ship made to the development of mechanical engineering and innovations in offshore drilling technology.
The historic ship’s name will forever be linked to the ship’s CIA clandestine service during the Cold War. For many veteran journalists, the agency’s chronic response to inquiries, “We can neither confirm nor deny,” is still known as the “Glomar response.”
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Recommended Reading: The CIA’s Greatest Covert Operation: Inside the Daring Mission to Recover a Nuclear-Armed Soviet Sub (2012); Project Azorian: The CIA and the Raising of the K-129 (2012). 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 become an AOGHS annual supporter and help maintain this energy education website and expand historical research. For more information, contact bawells@aoghs.org. Copyright © 2026 Bruce A. Wells. All rights reserved.
Citation Information – Article Title: “Secret Offshore History of Drill Ship Glomar Explorer.” Authors: B.A. Wells and K.L. Wells. Website Name: American Oil & Gas Historical Society. URL: https://aoghs.org/oil-almanac/secret-offshore-history-of-the-glomar-explorer. Last Updated: January 25, 2026. Original Published Date: February 8, 2020.
by Bruce Wells | Dec 11, 2025 | Petroleum Technology
“Small cannons throwing a three-inch solid shot are kept at various stations throughout the region…”
Early petroleum technologies included cannons for fighting oil tank storage fires, especially in the Great Plains, where lightning strikes ignited derricks, engine houses, and tanks. Shooting a cannonball into the base of a burning storage tank allowed oil to drain into a holding pit or ditch, putting out the fire.
“Oil fires, like battles, are fought by artillery,” proclaimed the Massachusetts Institute of Technology in December 1884. Oilfield conflagrations challenged America’s petroleum industry since the first commercial well in 1859 (see First Oil Well Fire). An MIT student offered a recent, first-person account.
Especially in Midwest oilfields, lightning strikes could ignite derricks, engine houses, and rows of storage tanks. Photo courtesy Butler County History Center & Kansas Oil Museum.
“Lightning had struck the derrick, followed pipe connections into a nearby tank and ignited natural gas, which rises from freshly produced oil. Immediately following this blinding flash, the black smoke began to roll out,” the writer noted in The Tech, a student newspaper established in 1881.
The MIT article, “A Thunder Storm in the Oil Country,” described what happened next:
“Without stopping to watch the burning tank-house and derrick, we followed the oil to see where it would go. By some mischance the mouth of the ravine had been blocked up and the stream turned abruptly and spread out over the alluvial plain,” reported the article.
Oilfield operators used muzzle-loading cannons to fire solid shot at the base of burning oil tanks, draining the oil into ditches to extinguish the blaze.
“Here, on a large smooth farm, were six iron storage tanks, about 80 feet in diameter and 25 feet high, each holding 30,000 barrels of oil,” it added, noting the burning oil “spread with fearful rapidity over the level surface” before reaching an oil storage tank.
“Suddenly, with a loud explosion, the heavy plank and iron cover of the tank were thrown into the air, and thick smoke rolled out,” the writer observed.
“Already the news of the fire had been telegraphed to the central office, and all its available men and teams in the neighborhood ordered to the scene,” he added. “The tanks, now heated on the outside as well as inside, foamed and bubbled like an enormous retort, every ejection only serving to increase the heat.”
Technological innovations in Oklahoma oilfields helped improve petroleum production worldwide. The oilfield artillery exhibit at the Oklahoma Oil Museum in Seminole educated visitors until the museum closed in 2019. Photo by Bruce Wells.
The area of the fire rapidly extended to two more tanks: “These tanks, surrounded by fire, in turn boiled and foamed, and the heat, even at a distance, was so intense that the workmen could not approach near enough to dig ditches between the remaining tanks and the fire.”
Noting the arrival of “the long looked for cannon,” the reporter noted, adding, “Since the great destruction is caused by the oil becoming overheated, foaming and being projected to a distance, it is usually desirable to let it out of the tank to burn on the ground in thin layers; so small cannons throwing a three-inch solid shot are kept at various stations throughout the region for this purpose.”
The wheeled cannon was placed in position and “aimed at points below the supposed level of the oil and fired,” explained the witness. “The marksmanship at first was not very good, and as many shots glanced off the iron plates as penetrated, but after a while nearly every report was followed by an outburst.”
The oil in three storage tanks was slowly drawn down by this means, “and did not again foam over the top, and the supply to the river being thus cut off, the fire then soon died away.”
Mobil Oil in 1969 donated to Corsicana, Texas, a cannon that once stood at the Magnolia Petroleum tank farm “to shoot a hole in the bottom of the Cyprus tanks if lightning struck.”
In the end, “it was not till the sixth day from that on which we saw the first tank ignited that the columns of flame and smoke disappeared,” the 1884 MIT article concluded. “During this time 180,000 barrels of crude oil had been consumed, besides the six tanks, costing $10,000 each, destroyed.”
Postcards promoted a community’s petroleum prosperity with images of gushers and burning oil tanks. The Lima oilfield was discovered in 1885. Circa 1910 postcard published by Robbins Bros., Boston.
Visitors to Corsicana, Texas — where oil was discovered while drilling for water in 1894 (see First Texas Oil Boom) — can view an oilfield cannon donated to the city in 1969 by Mobil Oil. The marker notes:
“Fires were a major concern of oil fields. This cannon stood at the Magnolia Petroleum tank farm in Corsicana. It was used to shoot a hole in the bottom of the Cyprus tanks if lightning struck. The oil would drain into a pit around the tank to be pumped away. The cannon was donated by Mobil Oil Company in 1969.”
Another cannon can be found on exhibit in Bartlesville, Oklahoma, near the first Oklahoma oil well, drilled a decade before 1907 statehood. Exhibits at Discovery One Park include an 84-foot cable-tool derrick first erected in 1948 and replaced in 2008.
Still more oilfield artillery also can be found at the Kansas Oil Museum in Butler County. Another educates tourists in Ohio.
An oilfield cannon exhibit in Discovery One Park in Bartlesville, site of the first significant Oklahoma oilfield discovery of 1897. Photo by Bruce Wells.
The Wood County Historical Center and Museum in Bowling Green displays its “unusual fire extinguisher” among its petroleum-artifact collection. The Buckeye Pipeline Company of Norwood donated the cannon, according to the museum’s director, Kelli King.
“The cannon, cast in North Baltimore (Ohio), was used in the 1920s in Cygnet before being moved to Northwood,” Kelli reported in 2005, adding that more local history can be found in the museum’s documentary “Ohio Crude” and in its exhibit, “Wood County in Motion.”
Museums in nearby Hancock County and Allen County also have petroleum collections from the Buckeye State’s oilfields.
Modern Oilfield Firefighting
When oilfield well control expert and firefighter Paul “Red” Adair died at age 89 in 2004, he left behind a famous “Hell Fighter” legacy. The son of a blacksmith, Adair was born in 1915 in Houston and served with a U.S. Army bomb disposal unit during World War II.
Adair began his career working for Myron M. Kinley, who patented a technology for using charges of high explosives to snuff out well fires. Kinley, whose father had been an oil well shooter in California in the early 1900s, also mentored Asger “Boots” Hansen and “Coots” Mathews of Boots & Coots International Well Control and other firefighters.
Famed oilfield firefighter Paul “Red” Adair of Houston, Texas, in 1964.
In 1959, Adair founded Red Adair Company in Houston and soon developed innovative techniques for “wild well” control. His company would put out more than 2,000 well fires and blowouts worldwide — onshore and offshore.
The Texas firefighter’s skills were tested in 1991 when Adair and his company extinguished 117 oil well fires set in Kuwait by Saddam Hussein’s retreating Iraqi army. Adair was joined by other pioneering well firefighting companies, including Cudd Well Control, founded by Bobby Joe Cudd in 1977.
Russian Anti-Tank Gun
Unable to control a 2020 oil well fire in Siberia, a Russian oil company called in the army. In May, a well operated by the Irkutsk Oil Company in Russia’s Irkutsk region ignited into a geyser of flame. When Irkutsk Oil Company firefighters were unable to extinguish the blaze, the Russian Defense Ministry flew a Rapira MT-12 anti-tank gun to the well site.
The Russian army’s 100-millimeter gun repeatedly fired at the flaming wellhead, “breaking it from the well and allowing crews to seal the well,” according to a June 8, 2020, article in Popular Mechanics.
In 1966, the Soviet Union used a nuclear device to extinguish a natural gas fire — as U.S. scientists experimented with nuclear fracturing of natural gas wells (see Project Gasbuggy tests Nuclear “Fracking”).
Learn more about the earliest oilfield fires and how the petroleum industry fought them with cannons, wind-making machines (including jet engines), and nuclear bombs in Oilfield Firefighting Technologies.
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Recommended Reading: Trek of the Oil Finders: A History of Exploration for Petroleum (1975); The Prize: The Epic Quest for Oil, Money & Power (1991); 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 become an AOGHS annual supporter and help maintain this energy education website and expand historical research. For more information, contact bawells@aoghs.org. Copyright © 2025 Bruce A. Wells. All rights reserved.
Citation Information – Article Title: “Oilfield Artillery fights Fires.” Authors: B.A. Wells and K.L. Wells. Website Name: American Oil & Gas Historical Society. URL: https://aoghs.org/technology/oilfield-artillery-fights-fires. Last Updated: December 11, 2025. Original Published Date: September 1, 2005.
by Bruce Wells | Dec 3, 2025 | Petroleum Pioneers
New Mexico wildcatter discovers high-grade uranium after decades of drilling dry holes.
Stella Dysart spent almost 30 years unsuccessfully searching for oil in New Mexico. In 1955, a radioactive uranium sample from one of her “dusters” made her a very wealthy woman.
In the end, it was the uranium — not petroleum — that made Dysart her fortune. The sometimes desperate promoter of oil drilling ventures in New Mexico for more than 30 years, she once served time for fraud. But in 1955, Mrs. Dysart learned she owned the world’s richest deposit of high-grade uranium ore.
LIFE magazine featured Stella Dysart in 1955 after she made a fortune from finding uranium but failed in her oil ventures.
Born in 1878 in Slater, Missouri, Dysart moved to New Mexico, where she got into the petroleum and real estate business in 1923. She ultimately acquired a reported 150,000 acres in the remote Ambrosia Lake area 100 miles west of Albuquerque, on the southern edge of the oil-rich San Juan Basin.
Dysart established the New Mexico Oil Properties Association and the Dysart Oil Company. The ventures and other investment schemes would leave her broke, according to John Masters and Paul Grescoe in their 2002 book, Secret Riches: Adventures of an Unreformed Oilman.
The authors describe Dysart as a woman who drilled dry holes, peddled worthless parcels of land to thousands of dirt-poor investors, and went to jail for one of her crooked deals.
Dysart subdivided her properties and subdivided again — selling one-eighth acre leases and oil royalties as small as one-six thousandth to investors. She drilled nothing but dry holes for years. Then it got worse.
Before finding uranium, Stella Dysart served 15 months for the unauthorized selling of New Mexico oil leases. In 1941, she promoted her Dysart No. 1 Federal well, above, which was never completed.
A 1937 Workmen’s Compensation Act judgment against Dysart’s New Mexico Oil Properties Association bankrupted the company, compelling sale of its equipment, “sold as it now lies on the ground near Ambrosia Lake.”
Two years later, it got worse again. Dysart and five Dysart Oil Company co-defendants were charged with 60 counts of conspiracy, grand theft, and violation of the Corporate Securities Act in 1939. All were convicted, and all did time. Dysart served 15 months in the county jail before being released on probation in March 1941.
Uranium Riches
By 1952, 74-year-old Dysart was $25,000 in debt when she met uranium prospector Louis Lothman, a young Texan just two years out of college with a geology degree.
When Lothman examined cuttings from a Dysart dry hole in McKinley County in 1955, he got impressive Geiger counter readings. The drilling of several more test wells confirmed the results. Dysart owned the world’s richest deposit of high-grade uranium ore.
Uranium production in the San Juan Basin, 1948-1975 courtesy New Mexico Geological Survey.
The uranium discovery launched an intensive exploration effort that led to the development of multi-million-ton deposits in the Ambrosia Lake area, according to William L. Chenoweth of the U.S. Energy Research and Development Administration.
“The San Juan Basin of northwest New Mexico has been the source of more uranium production than any other area in the United States,” he noted in a New Mexico Geological Survey 1977 report, “Uranium in the San Juan Basin.”
Dysart was 78 years old when the December 10, 1955, LIFE magazine featured her picture, captioned: “Wealthy landowner, Mrs. Stella Dysart, stands before abandoned oil rig which she set up on her property in a long vain search for oil. Now uranium is being mined there and Mrs. Dysart, swathed in mink, gets a plump royalty.”
Praised for her success, and memories of fraudulent petroleum deals long forgotten, Dysart died in 1966 in Albuquerque at age 88. As Secret Riches author John Masters explained, “there must be a little more to her story, but as someone said of Truth — ‘it lies hidden in a crooked well.’”
More New Mexico petroleum history can be found in Farmington, including the exhibit “From Dinosaurs to Drill Bits” at the Farmington Museum. Learn about the giant Hobbs oilfield of the late 1920s in New Mexico Oil Discovery.
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Recommended Reading: Stella Dysart of Ambrosia Lake: Courage, Fortitude and Uranium in New Mexico
(1959); Secret Riches: Adventures of an Unreformed Oilman (2004). 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 become an AOGHS annual supporter and help maintain this energy education website and expand historical research. For more information, contact bawells@aoghs.org. Copyright © 2025 Bruce A. Wells. All rights reserved.
Citation Information – Article Title: Legend of “Mrs. Dysart’s Uranium Well.” Authors: B.A. Wells and K.L. Wells. Website Name: American Oil & Gas Historical Society. URL: https://aoghs.org/petroleum-pioneers/uranium. Last Updated: December 3, 2025. Original Published Date: April 29, 2013.
