Magnolia Petroleum Company

Magnolia Petroleum Company

Company type	Subsidiary (after 1925)
Industry	Oil and gas
Founded	April 24, 1911 (1911-04-24) in Texas, United States
Founder	John H. Sealy
Defunct	1959 (1959)
Fate	Fully integrated into Socony-Vacuum's Mobil division (later Mobil Oil Corporation)
Headquarters	Texas , United States
Area served	United States (notably Texas)
Key people	John H. Sealy (founder)
Products	Petroleum products, including Mobilgas and Mobiloil
Parent	Standard Oil of New York (Socony), later Socony-Vacuum Oil Company

The Magnolia Petroleum Company was a Texas-based oil enterprise established in the early 1900s. Founded in 1911 by John H. Sealy, it eventually became a wholly owned subsidiary of Standard Oil of New York, maintaining this status until its full integration in 1959.

History

On April 24, 1911, John H. Sealy founded the company, naming it in honor of his aunt, Magnolia Sealy. Following the 1901 Spindletop gusher, Magnolia Petroleum expanded its portfolio by acquiring Navarro Oil (previously known as the J. S. Cullinan Company) and Security Oil, along with a refinery located in the East Texas Oil Field. The firm also unified multiple operators within the Corsicana oil fields. In December 1925, Socony acquired nearly all Magnolia stock through an exchange but continued to run it as an affiliate until the 1931 merger with Vacuum Oil Company, which created the "Socony-Vacuum Oil Company."

Magnolia functioned as a subsidiary under Socony-Vacuum. By 1959, it was fully absorbed into Socony-Vacuum’s Mobil division, which later rebranded as 'Socony Mobil' and subsequently Mobil Oil Corporation. The 1999 merger between Mobil and Exxon resulted in ExxonMobil, one of the world’s largest oil corporations. Holders of Magnolia preferred stock received ExxonMobil shares, elevating the Sealy family to prominent shareholder status.

This acquisition played a crucial role in transforming the Corsicana and Beaumont areas into major refinery centers globally.

Initially identified by a magnolia blossom logo, Magnolia transitioned to using Vacuum’s iconic ‘Flying Red Horse’ (red Pegasus) emblem after the 1931 merger and marketed products under the Mobil brand names such as Mobilgas and Mobiloil.

In 1924, Magnolia established Beaumont's first radio station, KFDM ("Kall For Dependable Magnolene"), which was leased and eventually sold to broadcasting firms by 1937.

A separate entity named Magnolia Petroleum has been operating out of Oklahoma since 2008.

See also

• Magnolia Hotel (initially known as the "Magnolia Petroleum Building")
• Magnolia Service Station
• ExxonMobil Beaumont Refinery