by Bruce Wells | Feb 21, 2025 | Petroleum Technology
Wells on manmade islands save “America’s Sinking City.”
Reversing an earlier ban, voters in Long Beach, California, in 1962 approved petroleum exploration in their harbor. Five major oil companies formed a company called THUMS and built four artificial islands to produce the oil.
California’s headline-making 1921 oil discovery at Signal Hill launched a drilling boom that transformed the quiet residential area. So many derricks sprouted it became known as “Porcupine Hill.”
Island Grissom, one of the four THUMS islands at Long Beach, California, was named after NASA astronaut Col. Virgil “Gus” Grissom, who died in 1967 in the Apollo spacecraft fire. Photo courtesy U.S. Department of Energy.
With many homeowners aspiring to become drillers and oilfield speculators, much of Signal Hill’s land was sold and subdivided in real estate lots of a size described as “big enough to raise chickens.”
Derricks were so close to one cemetery that graves “generated royalty checks to next-of-kin when oil was drawn from beneath family plots,” noted one historian. Neighboring Long Beach joined the drilling boom.
By 1923, oil production reached more than one-quarter million barrels of oil per day. When Long Beach instituted a per-barrel oil tax, Signal Hill residents voted to incorporate in 1924.
At the time, “the law of capture” for petroleum production ensured the formerly scenic landscape would be transformed. Competing exploration and production companies crowded around newly completed wells and chased any signs of oil to the Pacific Ocean.
The islands are among the most innovative oilfield designs in the world. Circa 1965 illustration courtesy Oxy Petroleum.
By the early 1930s, the massive Wilmington oilfield extended through Long Beach as reservoir management concerns remained in the future. Naturally produced California oil seeps had led to many discoveries south of the 1892 Los Angeles City field.
Onshore and offshore tax revenues generated by production of more than one billion barrels of oil and one trillion cubic feet of natural gas helped underwrite much of the Los Angeles area’s economic growth. But not without consequences.
Long Beach: A Sinking City
The U.S. Army Corps of Engineers reported, “Subsidence, the sinking of the ground surface, is typically caused by extracting fluids from the subsurface.”
Petroleum reserves brought drilling booms to southern California. By 1923, oil production reached more than one-quarter million barrels of oil per day from Signal Hill, seen in the distance in this detail from a panorama from the Library of Congress.
Californians had a lot of experience dealing with groundwater induced subsidence and the building damage it caused, but by 1951, Long Beach was sinking at the alarming rate of about two feet each year.
Earth scientists noted that between 1928 and 1965, the community sank almost 30 feet. TIME magazine call the bustling port “America’s Sinking City.”
After decades of prospering from petroleum production, the city prohibited “offshore area” drilling to slow the subsidence as the community looked for a solution.
On February 27, 1962, Long Beach voters approved “controlled exploration and exploitation of the oil and gas reserves” underlying their harbor. The city’s charter had prohibited such drilling since a 1956 referendum. Advancements in oilfield technologies enabled Long Beach to stay afloat.
Directional drilling and water injection opened another 6,500 acres of the Wilmington field — and saved the sinking city.
THUMS: Texaco, Humble, Union, Mobil and Shell
Five oil companies formed a Long Beach company called THUMS: Texaco (now Chevron), Humble (now ExxonMobil), Union Oil (now Chevron), Mobil (now ExxonMobil) and Shell Oil Company. They built four artificial islands at a cost of $22 million in 1965 (more than $200 in 2024 dollars).
The islands — named in 1967 Grissom, White, Chaffee, and Freemen in honor of lost NASA astronauts would include 42 acres for about 1,000 active wells producing 46,000 barrels of oil and 9 million cubic feet of natural gas a day.
The prospering but “sinking city” of Long Beach would solve its subsidence problem with four islands and advanced drilling and production technologies. Photo by Roger Coar, 1959, courtesy Long Beach Historical Society.
To counter subsidence, five 1,750-horsepower motors on White Island drive water injection pumps to offset extracted petroleum, sustain reservoir pressures, and extend oil recovery. The challenge was once described as “a massive Rubik’s Cube of oil pockets, fault blocks, fluid pressures and piping systems.”
Meanwhile, all of this happens amidst the scenic boating and tourist waters in Long Beach Harbor.
The California Resources Corporation operates the offshore part on the islands of the Wilmington field, the fourth-largest U.S. oilfield, according to the Los Angeles Association of Professional Landmen, whose members toured the facilities in November 2017.
Producing in Plain Sight
“Most interestingly, the islands were designed to blend in with the surrounding coastal environment,” explained LAAPL Education Chair Blake W.E. Barton of Signal Hill Petroleum. “The drilling rigs and other above-ground equipment are camouflaged and sound-proofed with faux skyscraper skins and waterfalls.”
Most people simply do not realize the islands are petroleum production facilities. From the shore, the man-made islands appear occupied by upscale condos and lush vegetation. Many of the creative disguises came courtesy of Joseph Linesch, a pioneering designer who helped landscape Disneyland.
The THUMs islands required exceptional designs, and “the people who were involved at the time were very creative visionaries,” said Frank Komin, executive vice president for southern operations of the California Resources Corporation (CRC), owner of the islands.
About 80 percent of the company’s properties would overlie the Wilmington oilfield, according to CRC, noting that from 2003 to 2018, CRC operations generated over $5.2 billion in revenues, taxes and fees for the City of Long Beach and the state.
THUMS Island White, named for Col. Edward White II, the first American to walk in space, who died in 1967 along with NASA astronauts “Gus” Grissom and Roger B. Chaffee. A fourth island was named for NASA test pilot Ted Freeman, who in 1963 was the first fatality among the astronauts. Photo courtesy UCLA Library.
“Even today, those islands are viewed as one of the most innovative oil field designs in the world,” CRC executive Komin declared in a 2015 Long Beach Business Journal article. “The islands have grown to become icons in which the City of Long Beach takes a great deal of pride.”
The Journal explained that 640,000 tons of boulders, some as large as five tons, were mined and placed to build up the perimeters of the islands. “Concrete facades constructed for aesthetic purposes also divert industrial noise away from nearby residents,” the article added. For more noise abatement, electricity has provided nearly all the power for the islands.
The THUMS aesthetic integration of 175-foot derricks and production structures has been described by the Los Angeles Times as, “part Disney, part Jetsons, part Swiss Family Robinson.”
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Recommended Reading: An Ocean of Oil: A Century of Political Struggle over Petroleum Off the California Coast (1998); Black Gold in California: The Story of California Petroleum Industry 
(2016); Early California Oil: A Photographic History, 1865-1940
(1985). Your Amazon purchases benefit 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: “THUMS – California’s Hidden Oil Islands.” Authors: B.A. Wells and K.L. Wells. Website Name: American Oil & Gas Historical Society. URL: https://aoghs.org/technology/thums-california-hidden-oil-islands. Last Updated: February 25, 2025. Original Published Date: March 8, 2018.
by Bruce Wells | Feb 20, 2025 | Petroleum Technology
Inventing technologies for protecting oil and natural gas wells and the environment.
Erle P. Halliburton in March 1921 received a U.S. patent for his improved method for cementing oil wells, helping to bring greater production and environmental safety to America’s burgeoning oilfields.
When Halliburton patented his “Method and Means for Cementing Oil Wells,” the 29-year-old inventor changed how oil and natural gas wells were completed. His contribution to oilfield production technology was just beginning.
One of Erle P. Halliburton’s younger brothers, George Halliburton, posed in a Ford Model T around 1929. “George, my grandfather, and several of E.P.’s brothers were employed with the company for many years,” noted Cole Halliburton, Halliburton Operating Company president, in 2020. An early Halliburton self-propelled truck with pumps for cementing wells can be seen in background. Photo courtesy Timothy Johnson.
Halliburton was 27 years old in 1919 when he founded his oilfield equipment and service company headquartered in Duncan, Oklahoma. His New Method Oil Well Cementing Company would receive many patents on its way to becoming today’s Halliburton.
Halliburton moved to Duncan and its nearby Healdton oilfield after working in the booming fields of Burkburnett, Texas.
“It is well known to those skilled in the art of oil well drilling that one of the greatest obstacles to successful development of oil-bearing sands has been the encountering of liquid mud water and the like during and after the process of drilling the wells,” Halliburton noted in his June 1920 U.S. patent application. (more…)
by Bruce Wells | Jan 11, 2025 | Petroleum Technology
Oilfield production technologies began in Pennsylvania with an economical way to pump multiple wells.
In the earliest days of the petroleum industry, which began with an 1859 oil discovery in Pennsylvania, production technologies used steam power and a walking beam pump system that evolved into ways for economically producing oil from multiple wells.
Just as drilling technologies evolved from spring poles to steam-powered cable tools to modern rotary rigs, oilfield production also improved.
This image of a circa 1909 double eccentric power wheel manufactured by the Titusville (Pennsylvania) Iron Works is just one example of what can be discovered online at public domain resources. Photo courtesy Library of Congress Prints and Photographs Collections.
In the early days of the industry, oil production technology used steam power and a wooden walking beam. A steam engine at each well raised and lowered one end of the beam. An oil production technique perfected in Pennsylvania used central power for pumping low-production wells to economically recover oil.
Library of Congress Collection
A Library of Congress (LOC) photograph from 1909 shows a “double eccentric power wheel,” part of an innovative centralized power system. The oilfield technology from a South Penn Oil Company (the future Pennzoil) lease between the towns of Warren and Bradford, Pennsylvania.
The LOC photograph preserves the oilfield technology that used the two wheels’ elliptical rotation for simultaneously pumping multiple oil wells. The wheels’ elliptical rotation simultaneously pumped eleven remote wells. This central pump unit operated in the Morris Run oilfield, discovered in 1883. It was manufactured at the Titusville Iron Works.
Many oilfield history resources can be found in the Library of Congress Digital Collections and the related images of petroleum history photography. The development of centralized pumping systems — eccentric wheels and jerk lines — often are preserved in high-resolution files.
The Morris Run field produced oil from two shallow “pay sands,” both at depths of less than 1,400 feet. It was part of a series of other early important discoveries.
Late 18th-century Oil Well Supply Company illustration of pumping system using rods, cables, and an eccentric wheel.
In 1881, the Bradford field alone accounted for 83 percent of all the oil produced in the United States (see Mrs. Alford’s Nitro Factory). Today, new technologies are producing natural gas from a deeper formation, the Marcellus Shale.
Although production from some early shallow Pennsylvania wells declined to only about half a barrel of oil a day, some continued pumping into 1960.
Central Power Units
As the number of oil wells grew in the early days of America’s petroleum industry, simple water-well pumping technologies began to be replaced with advanced, steam-driven walking beam pump systems.
At first, each well had an engine house where a steam engine raised and lowered one end of a sturdy wooden beam, which pivoted on the cable-tool well’s “Samson Post.” The walking beam’s other end cranked a long string of sucker rods up and down to pump oil to the surface.
America’s oilfield technologies advanced in 1875 with this “Improvement In Means For Pumping Wells” invented in Pennsylvania.
Recognizing that pumping multiple wells with a single steam engine would boost efficiency, on April 20, 1875, Albert Nickerson and Levi Streeter of Venango County, Pennsylvania, patented their “Improvement in Means for Pumping Wells.”
Their system was the forerunner of wooden or iron rod jerk line systems for centrally powered oil production. This technology, eventually replaced by counter-balanced pumping units, will operate well into the 20th century – and remain an icon of early oilfield production.
“By an examination of the drawing it will be seen that the walking beam to well No. 1 is lifting or raising fluid from the well. Well No. 3 is also lifting, while at the same time wells 2 and 4 are moving in an opposite direction, or plunging, and vice versa,” the inventors explained in their patent application (No. 162,406).
“Heretofore it has been necessary to have a separate engine for each well, although often several such engines are supplied with steam from the same boiler,” they noted. “The object of our invention is to enable the pumping of two or more wells with one engine.”
By it the walking beams of the different wells are made to move in different directions at the same time, thereby counterbalancing each other, and equalizing the strain upon the engine.
An Allegheny National Forest Oil Heritage Series illustration of an oilfield “jack plant” in McKean County, Pennsylvania.
Steam initially drove many of these central power units, but others were converted to burn natural gas or casing-head gas at the wellhead – often using single-cylinder horizontal engines. Examples of the engines, popularly called “one lungers” by oilfield workers, have been collected and restored (see Coolspring Power Museum).
Many widely used techniques of drilling and pumping oil were developed in an effort to recover the high-quality “Pennsylvania Grade” oil. Image courtesy Library of Congress.
The heavy and powerful engine — started by kicking down on one of the iron spokes — transferred power to rotate an “eccentric wheel,” which alternately pushed and pulled on a system of rods linked to pump jacks at distant oil wells.
“Transmitting power hundreds of yards, over and around obstacles, etc., to numerous pump jacks required an ingenious system of reciprocating rods or cables called Central Power and jerker lines,” explains documentation from an Allegheny National Forest Oil Heritage Series illustration of an oilfield “jack plant” in McKean County, Pennsylvania. The long rod lines were also called shackle lines or jack lines.
A single engine with eccentric wheel connecting rod lines could economically pump oil using Oil Well Supply Company’s “Simplex Pumping Jacks.”
Around 1913, with electricity not readily available, the Simplex Pumping Jack became a popular offering from Oil Well Supply Company of Oil City, Pennsylvania. The simple and effective technology could often be found at the very end of long jerk lines.
A central power unit could connect and run several of these dispersed Simplex pumps. Those equipped with a double eccentric wheel could power twice as many.
Roger Riddle, a local resident and field guide for the West Virginia Oil & Gas Museum in Parkersburg, was raised around central power units and recalls the rhythmic clanking of rod lines.
Riddle has guided visitors through dense nearby woods where remnants of the elaborate systems rust. The heavy equipment once “pumped with just these steel rods, just dangling through the woods,” he says. “You could hear them banging along – it was really something to see those work. The cost of pumping wells was pretty cheap.”
The heyday of central power units passed when electrification arrived, nonetheless, a few such systems remain in use today. Learn more about the evolution of petroleum production methods in All Pumped Up – Oilfield Technology.
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Recommended Reading: Drilling Technology in Nontechnical Language
(2012); Trek of the Oil Finders: A History of Exploration for Petroleum (1975). Your Amazon purchase benefits the American Oil & Gas Historical Society. As an Amazon Associate, AOGHS earns a commission from qualifying purchases.
_______________________
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: “Eccentric Wheels and Jerk Lines.” Authors: B.A. Wells and K.L. Wells. Website Name: American Oil & Gas Historical Society. URL: https://aoghs.org/technology/jerk-lines-eccentric-wheels. Last Updated: January 10, 2025. Original Published Date: November 20, 2017.
