Private company

Kerr-McGee

Logo: Unknown author Unknown author, Public domain, via Wikimedia Commons3

American energy company (1929–2006)

The Kerr-McGee Corporation, founded in 1929, was an American energy company involved in oil exploration, production of crude oil, natural gas, perchlorate and uranium mining and milling in various countries. On June 23, 2006, Anadarko Petroleum acquired Kerr-McGee in an all-cash transaction totalling $16.5 billion plus $2.6 billion in debt and all operations moved from their base in Oklahoma, United States. As a result of further acquisitions, most of the former Kerr-McGee is now part of Occidental Petroleum.2 It was founded by Robert S. Kerr.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1929Founded1
  • HeadquartersOklahoma1

The Kerr-McGee Corporation, founded in 1929, was an American energy company involved in oil exploration, production of crude oil, natural gas, perchlorate and uranium mining and milling in various countries. On June 23, 2006, Anadarko Petroleum acquired Kerr-McGee in an all-cash transaction totalling $16.5 billion plus $2.6 billion in debt and all operations moved from their base in Oklahoma, United States. As a result of further acquisitions, most of the former Kerr-McGee is now part of Occidental Petroleum.2

Corporate structure

Kerr-McGee is part of a group headed by Occidental Petroleum. 407 entities, 16 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • Occidental Petroleum Houston, Texas, United States
    • Anadarko Petroleum Houston, Texas, United States
      • GPM Empire, LLC Subsidiary · Delaware, United States
      • GPM Petroleum GP, LLC Subsidiary · Delaware, United States
      • GPM Petroleum LP Subsidiary · Delaware, United States
      • GPM RE LP Subsidiary · Delaware, United States
      • GPM Transportation Company LLC Subsidiary · Delaware, United States
      • Pine Belt Oil Company, LLC Subsidiary · Mississippi, United States
      • RAMCO, LLC Subsidiary · Mississippi, United States
    • Kerr-McGee Oklahoma
    • 1PointFive Asia Pte. Ltd. Subsidiary · Singapore
    • 1PointFive International G.K. Subsidiary · Japan
    • 1PointFive International, LLC Subsidiary · Delaware, United States
    • 1PointFive Magnolia Holdco, LLC Subsidiary · Delaware, United States
    • 1PointFive Magnolia Opco, LLC Subsidiary · Delaware, United States
    • 1PointFive Marketing, LLC Subsidiary · Delaware, United States
    • 1PointFive P1 Sequestration, LLC Subsidiary · Delaware, United States
    • 1PointFive P2, LLC Subsidiary · Delaware, United States
    • 1PointFive Pelican Holdco, LLC Subsidiary · Delaware, United States
    • 1PointFive Pelican Opco, LLC Subsidiary · Delaware, United States
    • 1PointFive Sequestration, LLC Subsidiary · Delaware, United States
    • 1PointFive Stratos Holdings, LLC Subsidiary · Delaware, United States
    • 1PointFive Stratos II, LLC Subsidiary · Delaware, United States
    • 1PointFive Stratos Investment, LLC Subsidiary · Delaware, United States
    • 1PointFive Stratos Marketing, LLC Subsidiary · Delaware, United States
    • 1PointFive Stratos RWTU, LLC Subsidiary · Delaware, United States
    • 1PointFive Stratos, LLC Subsidiary · Delaware, United States
    • 1PointFive USA, LLC Subsidiary · Delaware, United States
    • 1PointFive, LLC Subsidiary · Delaware, United States
    • 4374607 Nova Scotia Company Subsidiary · Nova Scotia, Canada
    • Amarok Gathering, LLC Subsidiary · Delaware, United States
    • Anadarko 20-25 Company Subsidiary · Cayman Islands
    • Anadarko 20-36 Company Subsidiary · Cayman Islands
    • and 374 more

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries listed in Exhibit 21 of annual reports filed with the SEC. Each entity in the chart links to its source.

The story

Founded by Robert S. Kerr in 1929.1

The company later known as Kerr-McGee was founded in 1929 as Anderson & Kerr Drilling Company by Oklahoma businessman-politician Robert S. Kerr and oil driller James L. Anderson. When Dean A. McGee, a former chief geologist for Phillips Petroleum, joined the firm in 1946, it changed its name to Kerr-McGee Oil Industries, Incorporated. The company initially focused mostly on off-shore oil exploration and production, being one of the first companies to use drillships in the Gulf of Mexico, and later one of the first companies to use a Spar platform in the area.

With the acquisition of the Oryx Energy Company of Dallas, Texas in 1999, Kerr-McGee gained more onshore assets, as well as significant assets in several foreign areas in Algeria and western Kazakhstan. Later acquisitions of HS Resources and Westport Resources Corp. established the base of operations in Denver, Colorado and added large resource areas throughout the Rocky Mountains.

Until 2005, Kerr-McGee had two major divisions: chemical and oil-related. On November 21, 2005, its chemical division, based in Oklahoma City, was sold as an IPO, Tronox, thereby making Oklahoma City home to the administrative side of Kerr-McGee, while exploration and production management was located in Denver and Houston. Through acquisitions, for a time Kerr-McGee marketed products under the Deep Rock, Coast, Power, and Peoples brands in addition to its own. It also marketed Blue Velvet motor oil, a multiviscosity grade with a blue dyed anti-wear additive.

On June 23, 2006, Anadarko Petroleum, based in The Woodlands, Texas, purchased Kerr-McGee in an all-cash transaction totaling $16.5 billion plus the assumption of $2.6 billion in debt. Kerr-McGee shareholders approved the offer on August 10, 2006, and Kerr-McGee ceased to exist independently. All operations with the exception of Tronox, which had been spun off in 2005, moved out of Oklahoma. Within a few years, the top positions at Anadarko had been filled by Kerr-McGee employees and many longtime Anadarko employees had left or been removed from the company, making the merger between Anadarko and Kerr-McGee a "wag the dog" transaction.

Kerr-McGee Corp. v. Navajo Tribe

Kerr-McGee v. Navajo Tribe, 471 U.S. 195 (1985), was a case in which the Supreme Court of the United States held that an Indian tribe is not required to obtain the Secretary of the Interior's approval to impose taxes on non-tribal persons or entities doing business on a reservation.

In 1978, the Navajo Tribal Council passed two tax ordinances. One was a tax of 3% on leaseholds (such as mineral rights) and one a 5% tax on business activity.

Kerr-McGee held substantial mineral rights on the Navajo Nation and filed suit in federal district court seeking an injunction to prohibit the tribe from collecting the tax. Kerr-McGee argued that any tax of non-Indians by a tribe required the Secretary of the Interior's approval, and the district court agreed, granting the injunction. The tribe appealed to the Ninth Circuit Court of Appeals. The Ninth Circuit overruled the district court, finding no federal statute or regulation required such approval. Kerr-McGee then appealed to the Supreme Court, which granted certiorari and agreed to hear the case. The court decided unanimously that the Navajo Nation had the right to tax Kerr-McGee because tribal authority to tax had already been recognized and because no federal law prohibited exercising tribal sovereignty in enacting a tax.

From Wikipedia’s article on Kerr-McGee, shared under CC BY-SA 4.0.4

Leadership

Who has led Kerr-McGee, and when. Pick a name to see everywhere that person has worked.

Products and brands

Locations

United States

Main oil and gas operations in the US were the Mid-Continent, Rocky Mountains, onshore Louisiana, and offshore in the Gulf of Mexico. Main offices were in downtown Denver and the Greenspoint area of Houston.

Corporate headquarters were in Downtown Oklahoma City. In the 1970s the company had a forest products division, and mineral mining in New Mexico, Arizona, and Idaho, and coal mining in Wyoming and Illinois. Most of the U.S operations were on land owned by the U.S. government (i.e. Bureau of Land Management, National Forest) and the Navajo Indian tribe. Kerr-McGee owned a potash operation in California from 1974 to 1990.

Mainland China

Kerr-McGee had exploration, development, and production projects in Bohai Bay, China, near Beijing. Additional exploration was planned for the South China Sea. These operations were run primarily from an office in Beijing.

Other locations

Kerr-McGee and its subsidiaries formerly operated in western Kazakhstan, western Australia, Brazil, Trinidad, Benin, the United Kingdom and several other more minor locations around the world at various times.

Read the full text

Nuclear production

Kerr-McGee was involved in several nuclear endeavors.

In 1952 Kerr-McGee bought the Navajo Uranium Mining Company, including an interest in a number of mines. It also bought an ore buying station at Shiprock, New Mexico. In 1953 it built a processing plant (called the Shiprock Mill) near the buying station. In 1963 the mines and mill were sold to the Vanadium Corporation of America.

Later a partnership with other companies was formed called the Kermac Nuclear Fuels Corporation. In 1957-58 this partnership built a uranium mill near Grants, New Mexico and Ambrosia Lake. In 1983 the mill was taken over by a new Kerr-McGee subsidiary called the Quivira Mining Corporation. Quivira was sold to Rio Algom in 1989.

Kerr-McGee purchased the Lakeview Mining Company of Lake County, Oregon in 1961. The plant was shut down in late 1960 or 1961 and sold to Atlantic Richfield in 1968.

From about 1962 to 1966, Kerr-McGee processed uranium at its oil refinery site in Cushing, Oklahoma. It received licenses in 1962 for processing uranium and thorium, and in 1963 for enriched uranium. In 1966 it stopped production. An attempt was made to move all regulated nuclear material to the company's new Cimarron facility at Crescent, Oklahoma. Cleanups were attempted in 1966, 1972, 1979–82, and the 1990s

Around 1965 Kerr-McGee started producing uranium fuel at its Cimarron Fuel Fabrication Site. This was near the Cimarron River and Crescent, Oklahoma. From 1973 to 1975 it also produced mixed Plutonium-Uranium Oxide (MOX) 'driver fuel pins' for use in the Fast Flux Test Facility at the Hanford Site in Washington State. The plant shut down in 1976.

In 1967 Kerr-McGee bought the American Potash and Chemical Company, which owned the Rare Earths Facility in West Chicago, Illinois. This facility produced thorium, radium, and uranium by acid leaching of monazite sands and other ores. It stopped work in 1973.

In 1968 the company started construction on what became the Sequoyah Fuels Corporation plant in Gore, Oklahoma. In 1970 the plant started turning yellowcake uranium into uranium hexafluoride. In 1987 it began producing depleted uranium tetrafluoride using depleted uranium hexafluoride as input. In 1988 SFC was sold to General Atomics. In late November 1993 production ceased after a valve in the processing plant stuck open and caused an uncontrolled reaction. The uncontrolled reaction resulted in a large visible cloud leaving the plant. Production ceased immediately and the plant operations never resumed.

Nuclear corporations, subsidiaries, and spinoffs

In 1956 Kerr-McGee formed the Kermac Nuclear Fuels Corporation in partnership with Anderson Development Corp and Pacific Uranium Mines Co. It was active in New Mexico.

Sometime in the 1970s, the Kerr-McGee Nuclear Corporation formed. In 1983 it split into the Quivira Mining Corporation and Sequoyah Fuels Corporation. Quivira got the Ambrosia Lake mine, while Sequoyah Fuels took over the Sequoyah plant in Gore as well as the Cimarron plant in Crescent. Sequoyah was sold to General Atomics in 1988 and Quivira was sold to Rio Algom in 1989.

The Cimarron Corporation was a subdivision that took control of the Cimarron plant in 1988. When Tronox was spun off in 2006, it got ownership of Cimarron Corporation and responsibility for the plant.

Kerr-McGee bought the American Potash and Chemical Company in 1967, including its Rare Earths Facility that processed uranium and thorium. AMPOT became Kerr-McGee Chemical Company around 1970 or 1974. In 2005 this became Tronox. Tronox became independent in 2006, a few months before Kerr-McGee was sold to Anadarko Petroleum. Tronox later went bankrupt, blaming in part the environmental liabilities inherited from KMC. In 2009 purchasers of Tronox filed a class action lawsuit against Anadarko for having allegedly misled investors.

Licenses

In the US, nuclear companies must get licenses from the Nuclear Regulatory Commission. Kerr-McGee licenses follow:

SNM-928 - Cimarron - uranium fuel fabrication

SNM-1174 - Cimarron - mixed oxide fuel (MOX) fabrication - ?-1993

STA-583 - Rare Earths Facility

SMB-664 - Cushing refinery - uranium and thorium. 1962-1966

SNM-695 - Cushing refinery - enriched uranium. 1963-1966

SNM-1999 - Cushing refinery - cleanup. 1993-2006

SUB-1010 - Sequoyah

SUA-1473 - Ambrosia Lake source materials license (currently managed by BHP)

From Wikipedia’s article on Kerr-McGee, shared under CC BY-SA 4.0.4

Timeline

  1. 2006Dissolved Dissolved1
  2. 1929Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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