by Bruce Wells | Jan 17, 2025 | Petroleum Pioneers
When a Fort Worth independent producer completed a remote wildcat well in East Texas on January 26,1931, the well revealed the true extent of an oilfield discovered months earlier and many miles away.
As the Great Depression worsened and East Texas farmers struggled to survive, W.A. “Monty” Moncrief and two partners drilled the Lathrop No. 1 well in Gregg County. When completed in 1931, their well produced 320 barrels of oil per hour from a depth of 3,587 feet.
Far from what earlier were thought to be two oilfield discoveries — this third well producing 7,680 barrels a day revealed a “Black Giant.”
A circa 1960 photograph of W.A. “Monty” Moncrief and his son “Tex” in Fort Worth’s Moncrief Building.
Moncrief, who had worked for Marland Oil Company in Fort Worth after returning from World War I, drilled in an region (and a depth) where few geologists thought petroleum production a possibility. He and fellow independent operators John Ferrell and Eddie Showers thought otherwise.
The third East Texas well was completed 25 miles north of Rusk County’s already famous October 1930 Daisy Bradford No. 3 well drilled by Columbus Marion “Dad” Joiner northwest of Henderson (and southeast New London, site of a tragic 1937 school explosion).
Moncrief’s oil discovery came 15 miles north of the Lou Della Crim No. 1 well, drilled three days after Christmas, on “Mama” Crim’s farm about nine miles from the Joiner well. At first, the distances between these “wildcat” discoveries convinced geologists, petroleum engineers (and experts at the large oil companies) the wells were small, separate oilfields. They were wrong.
Three Wells, One Giant Oilfield
To the delight of other independent producers and many small, struggling farmers, Moncrief’s Lathrop discovery showed that the three wells were part of a single petroleum-producing field. Further development and a forest of steel derricks revealed the northernmost extension of the 130,000-acre East Texas oilfield.
The history of the petroleum industry’s gigantic oilfield has been preserved at the East Texas Oil Museum, which opened at Kilgore College in 1980. Joe White, the museum’s founding director, created exhibit spaces for the “authentic recreation of the oil discoveries and production in the early 1930s in the largest oilfield inside U.S. boundaries.”
After more than half a century of major discoveries, William Alvin “Monty” Moncrief died in 1986. His legacy has extended beyond his good fortune in East Texas.
The family exploration business established by Moncrief in 1929 would be led by sons W.A. “Tex” Moncrief Jr. and C.B. “Charlie” Moncrief, who grew up in the exploration business. In 2010, Forbes reported that 94-year-old “Tex” made “perhaps the biggest find of his life” by discovering an offshore field of about six trillion cubic feet of gas.
Moncrief Philanthropy
Hospitals in communities near the senior Moncrief’s nationwide discoveries, including a giant oilfield in Jay, Florida, revealed in 1970, and another in Louisiana, have benefited from his drilling acumen.
The 130,000-acre East Texas oilfield became the largest in the contiguous United States in 1930.
Moncrief and his wife established the William A. and Elizabeth B. Moncrief Foundation and the Moncrief Radiation Center in Fort Worth, as well as the Moncrief Annex of the All Saints Hospital. Buildings in their honor have been erected at Texas Christian University, All Saints School, and Fort Worth Country Day School.
Dr. Daniel Podolsky in 2013 presented W.A. “Tex” Moncrief Jr. with a framed image of the new Moncrief Cancer Institute at the Fort Worth facility’s dedication ceremony.
Supported throughout the 1960s and 1970s by the Moncrief family, Fort Worth’s original Cancer Center, known as the Radiation Center, was founded in 1958 as one of the nation’s first community radiation facilities.
In 2013, the $22 million Moncrief Cancer Institute was dedicated during a ceremony attended by “Tex” Moncrief Jr. “One man’s vision for a place that would make life better for cancer survivors is now a reality in Fort Worth,” noted one reporter at the dedication of the 3.4-acre facility at 400 W. Magnolia Avenue.
Small investments from hopeful Texas farmers will bring historic results — and make Kilgore, Longview and Tyler boom towns during the Great Depression. Kilgore today celebrates its petroleum heritage.
Early Days in Oklahoma
Born in Sulphur Springs, Texas, on August 25, 1895, Moncrief grew up in Checotah, Oklahoma, where his family moved when he was five. Checotah was the town where Moncrief attended high school, taking typing and shorthand — and excelling to the point that he became a court reporter in Eufaula, Oklahoma.
To get an education, Moncrief saved $150 to enroll at the University of Oklahoma at Norman, where he worked in the registrar’s office. He became “Monty” after his initiation into the Sigma Chi fraternity.
During World War I, Moncrief volunteered and joined the U.S. Cavalry. He was sent to officer training camp in Little Rock, Arkansas, where he met, and six months later married, Mary Elizabeth Bright on May 28, 1918. Sent to France, Moncrief saw no combat thanks to the Armistice being signed before his battalion reached the front.
After the war, Moncrief returned to Oklahoma where he found work at Marland Oil, first in its accounting department and later in its land office. When Marland opened offices in Fort Worth in the late 1920s, Moncrief was promoted to vice president for the new division.
In 1929, Moncrief would strike out on his own as an independent operator. He teamed up with John Ferrell and Eddie Showers, and they bought leases where they ultimately drilled the successful F.K. Lathrop No. 1 well.
C.M. “Dad” Joiner’s partner, the 300-pound self-taught geologist A.D. “Doc” Lloyd, had predicted the field would be four to ten miles wide and 50 to 50 miles long, according to Moncrief, interviewed in 1985 for Wildcatter: A Story of Texas Oil.
“Of course, everyone at the time thought he was nuts, including me,” the Texas wildcatter added. Also interviewed, museum founder Joe White said Lloyd’s assessment predicted the Woodbine sands at a depth of 3,550 — about two thousand of feet shallower than major oil company geologists believed.
Moncrief’s Lathrop January 1931 wildcat well, which produced from the Woodbine formation at a depth of 3,587 feet, proved the oilfield stretched 42 miles long and up to eight miles wide — the largest in the lower-48 states.
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Recommended Reading: The Black Giant: A History of the East Texas Oil Field and Oil Industry Skulduggery & Trivia
(2003); Early Texas Oil: A Photographic History, 1866-1936
(2000). 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 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: “Moncrief makes East Texas History.” Authors: B.A. and K.L. Wells. Website Name: American Oil & Gas Historical Society. URL: https://aoghs.org/petroleum-pioneers/moncrief-oil. Last Updated: January 17, 2025. Original Published Date: January 25, 2015.
by Bruce Wells | Jan 16, 2025 | Petroleum Products
When Phillips Petroleum scientists invented a new plastic in the early 1950s, getting it from lab to market proved difficult. Enter Wham-O.
Research scientists in Bartlesville, Oklahoma, in 1951 discovered how to make a durable, high-density polyethylene, and the marketing executives at their oil and natural gas company named it Marlex. But Phillips Petroleum sales reps searched in vain for buyers of the new plastic until the Wham-O toy company found it ideal for making hoops and flying platters.
Prompted by a post World War II boom in demand for plastics, Phillips Petroleum Company invested $50 million to bring its own miracle product — Marlex — to market in 1954. With a high melting point and tensile strength, the synthetic polymer would stand out from the company’s thousands of patents.
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by Bruce Wells | Jan 14, 2025 | Petroleum Products
“New Perfection” kerosene stoves once competed with coal and wood-burning stoves in rural kitchens.
In the early 1900s, a foundry in Cleveland, Ohio, began manufacturing and selling an alternative to coal or wood-burning cast iron stoves. Thanks to a marketing partnership with Standard Oil Company, millions of rural kitchens would cook with kerosene-burning stoves.
America’s energy future changed after 1859 when a new “coal oil” (kerosene) was refined from petroleum purposefully extracted from wells drilled near Oil Creek, Pennsylvania.
A Cleveland foundry president in 1901 approached John D. Rockefeller about a new, kerosene-fueled alternative to cast iron home stoves like this one.
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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.
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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: “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.
