Citgo is a big oil company. 
Citgo is a large company. 

Citgo is a large company in the United States. 

Citgo is a major petroleum company located in the United States. 
Citgo works through a system of refining and moving fuel. The company takes oil and turns it into products like gasoline. It then uses a network of stations to sell these fuels to people. This is often called the downstream part of the oil business. This means the company handles the final steps of getting fuel to customers. 
The roots of the company go back to the early 1900s. An oil entrepreneur named Henry Latham Doherty started the original business. In 1910, he created the Cities Service Gas Development Company in West Virginia. His company built a huge pipeline to move natural gas. This pipe was 1,000 miles long and ran from Amarillo, Texas, to Chicago. 
Many changes happened to the company over the decades. In 1935, a law forced the company to choose between utilities or oil. They chose to stay in the oil and gas business. In 1965, the company started using the Citgo brand name. 
You might recognize Citgo from the bright signs at gas stations. 
Citgo Petroleum Corporation, often known as CITGO, is a major downstream petroleum company based in the United States. 
The company's operations involve a massive technical and logistical chain. First, Citgo manages refining, which is the process of turning crude oil into specific products like gasoline or diesel. These products are then moved through a transportation network. Finally, the marketing division sells these fuels through a vast retail network of gas stations. 
The history of Citgo is a long story of growth and transformation. It traces its roots back to the early 1900s and an entrepreneur named Henry Latham Doherty. In 1910, Doherty founded the Cities Service Gas Development Company in West Virginia. He focused on supplying gas and electricity to small public utilities. To move this energy, his company developed advanced pipeline systems. One major achievement was the Natural Gas Pipeline Company of America, completed in 1931. This was the first long-distance, high-pressure natural gas transportation system in the nation. It featured a 24-inch pipeline that stretched 1,000 miles from Amarillo, Texas, to Chicago.
As the company grew, it moved deeply into the oil business. It discovered massive oil fields in Kansas and Oklahoma, including the Oklahoma City Oil Field, which is one of the largest in the world. In 1965, the company began using the CITGO brand name for its refining and retail businesses. For many years, CITGO was just a trademark used by the larger Cities Service Company. The company changed forever in 1982 during a period of intense corporate competition. After a complex takeover attempt involving Mesa Petroleum and a failed merger with Gulf Oil, Cities Service was acquired by Occidental Petroleum. In 1983, the CITGO brand and its petroleum assets were sold to the Southland Corporation, the owners of 7-Eleven.
Ownership of Citgo took a major turn toward Venezuela in the late 20th century. In 1986, fifty percent of the company was sold to Petróleos de Venezuela, S.A., also known as PDVSA. By 1990, PDVSA had acquired the remaining shares, making it the majority owner. At its peak, PDVSA controlled about 10% of the domestic oil market in the United States. This created a massive export chain, moving Venezuelan oil to American consumers. However, this connection has become a source of significant political and economic tension. 
In recent years, Citgo has been caught in the middle of a severe economic crisis in Venezuela. Following the death of President Hugo Chávez in 2013, Venezuela entered a period of economic depression and hyperinflation. To manage its debts to countries like Russia and China, Venezuela has used Citgo as collateral for loans. In 2016, Venezuela pledged 49.9% of Citgo to the Russian oil firm Rosneft to secure a $1.5 billion loan. This move caused concern in the United States regarding national security. Furthermore, in 2019, the U.S. government imposed sanctions on PDVSA. These sanctions froze assets and prevented U.S. firms from doing business with the Venezuelan state company. This forced Citgo to cut ties with its owners and place payments into a "blocked account."
The company's future remains uncertain due to ongoing legal and financial challenges. Because of the sanctions, Citgo has faced difficulties refinancing its debt. In 2020, the company borrowed money through bonds, using 50.1% of its equity as collateral. If these bonds are not repaid, institutional investors could take ownership of that equity. Additionally, in May 2024, reports emerged that executives were considering placing Citgo into Chapter 11 bankruptcy protection. This move would be intended to block the sale of certain oil assets. As legal battles and economic shifts continue, Citgo remains a central figure in the intersection of global energy, international law, and politics.
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