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Mexican oil expropriation

Mexican oil expropriation is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Mexican oil expropriation rather than just read about it. In short: The Mexican oil expropriation (Spanish: expropiación petrolera en México) was the nationalization of all petroleum reserves, facilities, and foreign oil companies in Mexico on March 18, 1938. In accordance with Article 27 of the Constitution of 1917, President Lázaro Cárdenas declared that all mineral and oil reserves found within Mexico belong to the nation.

Mexican oil expropriation — main illustration
Mexican oil expropriation — illustration

Key takeaways

  • Mexican oil expropriation belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Mexican oil expropriation to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Mexican oil expropriation from memory before moving on to harder problems.

Reference excerpt

The Mexican oil expropriation (Spanish: expropiación petrolera en México) was the nationalization of all petroleum reserves, facilities, and foreign oil companies in Mexico on March 18, 1938. In accordance with Article 27 of the Constitution of 1917, President Lázaro Cárdenas declared that all mineral and oil reserves found within Mexico belong to the nation. The Mexican government established a state-owned petroleum company, Petróleos Mexicanos, or PEMEX. For a short period, this measure caused an international boycott of Mexican products in the following years, especially by the United States, the United Kingdom, and the Netherlands, as well as large foreign oil companies who had expertise refining Mexican oil. However, with the outbreak of World War II and the alliance between Mexico and the Allies, the disputes with private companies over compensation were resolved. The anniversary, March 18, is now a Mexican civic holiday.

Background

On August 16, 1935, the Petroleum Workers Union of Mexico (Sindicato de Trabajadores Petroleros de la República Mexicana) was formed and one of the first actions was the writing of a lengthy draft contract transmitted to the petroleum companies demanding a 40-hour working week, a full salary paid in the event of sickness, and the payment of 65 million pesos towards benefits and wages. The foreign oil companies refused to sign the agreement, and counter offered with a payment of 14 million pesos toward wages and benefits. On November 3, 1937, the union demanded that the companies sign the collective agreement and six months later, on May 17, 1938, the union summoned a strike in case their demands were not met. On May 28 the strike became effective throughout the country. The petroleum workers' struggle was well regarded by the President and the population despite problems caused by the petroleum shortage. Due to these problems, the union accepted a lift of the strike on June 9, 1938, after the president urged them to present their case before the General Arbitration and Conciliation Board (Junta General de Conciliación y Arbitraje). In July, as instructed by the arbitration board, a commission of financial experts was formed that investigated the petroleum companies' finances, concluding that their profits easily permitted them to cover the demands of the workers. The report stated that just one company (El Aguila) had received annual profits of over 55 million pesos. The arbitration board concluded that the oil companies should pay 26 million pesos for wages and benefits to the workers. The companies, however, insisted the demands would cripple production and bankrupt them, and refused to pay. The president once again intervened to mediate between the parties, and met with oil company representatives at the National Palace on September 2. In this meeting, one of the El Aguila representatives took issue with the description of it being a foreign company, and stated that El Aguila was a Mexican company. In response, Jesus Silva Herzog (present in the meeting) responded with a financial newspaper from London that cited a report from the Royal Dutch Shell of 1928: "Our Mexican subsidiary, Oil Company El Aguila, has obtained good returns during the last fiscal cycle." It was also explained that El Aguila de Mexico would set the price of an oil barrel at 1.96 when sold to The Eagle Shipping company. This price was below the market value of US$3.19 per barrel. This way profits would be hidden to the Mexican treasury, and taxes were saved.

However, on December 8, 1937 the companies had hired other unemployed workers and had not responded to the arbitration board. On December 18, the board gave a verdict in favor of the union by means of a "laudo" (binding judgment in arbitration) which demanded that the companies fulfill the requirements of the petitions and pay 26 million pesos in lost salaries. The petroleum companies initiated a lawsuit on January 2, 1938, before the Mexican Supreme Court to protect their property from the labor union and arbitration board, which denied the request. Consequently, the foreign companies rebelled against the imposed contract, and the maximum Judicial Authority responded by rendering a decision on March 1, 1938, giving the companies until March 7 to pay the 26 million pesos penalty. In 1935, all companies in the business of extraction, processing, and exporting of oil in Mexico were foreign companies with foreign capital. These companies attempted to block the creation of labor unions and used legal and illegal tactics to do so. However, the creation of individual unions within each company was made possible, but work conditions differed from one another. On December 27, 1935, the Sindicato Único de Trabajadores Petroleros was created, despite the legal opposition in the states of Tamaulipas and Veracruz. On January 29, 1936, this union joined the Comité de Defensa Proletaria ("Committee of Proletarian Defense") which would become in February the Confederation of Mexican Workers (CTM), which would celebrated its first convention on July 20, in which it was proposed a project of general contracts for each oil company and it was decided on a strike to push towards an agreement. Lázaro Cárdenas intervened between the union and the oil companies in order to force an agreement on the contract. The strike was delayed for six months, but the companies never agreed to the contract and on May 28, 1936, the strike took place. The entire country was paralyzed for 12 days, with consumers unable to buy gasoline. Cárdenas convinced the union to end the strike until a decision by the companies could be made. However, the companies declared themselves unable to meet the demands because of financial problems. Cárdenas ordered an investigation and on August 3, and the findings were that the Mexican oil industry produced higher returns than the U.S. oil industry.

… excerpt ends here. Continue reading the full article.

Illustrations

Mexican oil expropriation: Fountain of Mexican Petroleum (Monument), in the Paseo de la Reforma and Anillo Periférico, Mexico City
Fountain of Mexican Petroleum (Monument), in the Paseo de la Reforma and Anillo Periférico, Mexico City
Mexican oil expropriation illustration
Mexican oil expropriation: Venustiano Carranza, President of Mexico, on the recommendations of the 
Petroleum Technical Commission, promoted the restitution of the wealth of the subsoil to the nation, which had been yielded during the Porfiriato to the  
land owners by issuing the issuance of the Code of Minería of 1894 and the law oil company of 1901, both regulations were contrary to Spanish legislative system inherited since colonial times, that had remained in force in Mexico.
Venustiano Carranza, President of Mexico, on the recommendations of the Petroleum Technical Commission, promoted the restitution of the wealth of the subsoil to the nation, which had been yielded during the Porfiriato to the land owners by issuing the issuance of the Code of Minería of 1894 and the law oil company of 1901, both regulations were contrary to Spanish legislative system inherited since colonial times, that had remained in force in Mexico.
Mexican oil expropriation: Lázaro Cárdenas del Río, president of Mexico from 1934 to 1940, implemented a nationalist policy, interceded during the conflict between workers and companies repeatedly, on March 18, 1938, through a speech directed by radio to the nation, released the expropriatory decree.
Lázaro Cárdenas del Río, president of Mexico from 1934 to 1940, implemented a nationalist policy, interceded during the conflict between workers and companies repeatedly, on March 18, 1938, through a speech directed by radio to the nation, released the expropriatory decree.

Worked examples

Example 1 — a first encounter with Mexican oil expropriation

Start with the simplest possible case. Write down what Mexican oil expropriation claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Mexican oil expropriation before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Mexican oil expropriation ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Mexican oil expropriation

In research
Mexican oil expropriation appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Mexican oil expropriation in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Mexican oil expropriation is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1938 in Mexico, Economic history of Mexico, Fiestas Patrias (Mexico), so understanding it makes those chapters shorter.
In everyday life
Look for Mexican oil expropriation outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Mexican oil expropriation in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Mexican oil expropriation means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Mexican oil expropriation out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Mexican oil expropriation in simple terms?

The Mexican oil expropriation (Spanish: expropiación petrolera en México) was the nationalization of all petroleum reserves, facilities, and foreign oil companies in Mexico on March 18, 1938. In accordance with Article 27 of the Constitution of 1917, President Lázaro Cárdenas declared that all mine…

Why does Mexican oil expropriation matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Mexican oil expropriation?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Mexican oil expropriation.

Tags

  • 1938 in Mexico
  • Economic history of Mexico
  • Fiestas Patrias (Mexico)
  • Good Neighbor policy
  • Nationalization of oil
  • Petroleum industry in Mexico

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