Question: How much oil reserves does the country that held hostages from the country the Soviets did not want to engage conflict with for 444 days in the late 1970s have?

full_context: Document 1: Iran: The administration continues to follow the market reform plans of the previous one and indicated that it will diversify Iran's oil-reliant economy. Iran has also developed a biotechnology, nanotechnology, and pharmaceuticals industry. However, nationalized industries such as the bonyads have often been managed badly, making them ineffective and uncompetitive with years. Currently, the government is trying to privatize these industries, and, despite successes, there are still several problems to be overcome, such as the lagging corruption in the public sector and lack of competitiveness. In 2010, Iran was ranked 69, out of 139 nations, in the Global Competitiveness Report.
Document 2: Korean War: In a series of emergency meetings that lasted from 2–5 October, Chinese leaders debated whether to send Chinese troops into Korea. There was considerable resistance among many leaders, including senior military leaders, to confronting the U.S. in Korea. Mao strongly supported intervention, and Zhou was one of the few Chinese leaders who firmly supported him. After Lin Biao politely refused Mao's offer to command Chinese forces in Korea (citing his upcoming medical treatment), Mao decided that Peng Dehuai would be the commander of the Chinese forces in Korea after Peng agreed to support Mao's position. Mao then asked Peng to speak in favor of intervention to the rest of the Chinese leaders. After Peng made the case that if U.S. troops conquered Korea and reached the Yalu they might cross it and invade China the Politburo agreed to intervene in Korea. Later, the Chinese claimed that US bombers had violated PRC national airspace on three separate occasions and attacked Chinese targets before China intervened. On 8 October 1950, Mao Zedong redesignated the PLA North East Frontier Force as the Chinese People's Volunteer Army (PVA).
Document 3: Embassy of the United States, Tehran: The Embassy of the United States of America in Tehran was the United States of America's diplomatic mission in the Imperial State of Iran. Direct bilateral diplomatic relations between the two governments were severed following the Iranian Revolution in 1979, and the subsequent seizure of the embassy in November 1979.
Document 4: Korean War: On 18 September, Stalin dispatched General H. M. Zakharov to Korea to advise Kim Il-sung to halt his offensive around the Pusan perimeter and to redeploy his forces to defend Seoul. Chinese commanders were not briefed on North Korean troop numbers or operational plans. As the overall commander of Chinese forces, Zhou Enlai suggested that the North Koreans should attempt to eliminate the enemy forces at Inchon only if they had reserves of at least 100,000 men; otherwise, he advised the North Koreans to withdraw their forces north.
Document 5: Russia in the European energy sector: The Russian Federation supplies a significant volume of fossil fuels and is the largest exporter of oil and natural gas to the European Union. In 2007, the European Union imported from Russia 185 million tonnes of crude oil, which accounted for 32.6% of total oil import, and 100.7 million tonnes of oil equivalent of natural gas, which accounted 38.7% of total gas import.
Document 6: Korean War: Although Kim's early successes had led him to predict that he would end the war by the end of August, Chinese leaders were more pessimistic. To counter a possible U.S. deployment, Zhou Enlai secured a Soviet commitment to have the Soviet Union support Chinese forces with air cover, and deployed 260,000 soldiers along the Korean border, under the command of Gao Gang. Zhou commanded Chai Chengwen to conduct a topographical survey of Korea, and directed Lei Yingfu, Zhou's military advisor in Korea, to analyze the military situation in Korea. Lei concluded that MacArthur would most likely attempt a landing at Incheon. After conferring with Mao that this would be MacArthur's most likely strategy, Zhou briefed Soviet and North Korean advisers of Lei's findings, and issued orders to Chinese army commanders deployed on the Korean border to prepare for American naval activity in the Korea Strait.
Document 7: Eric Parnes: In January 2014, the Ayyam Gallery premiered at their DIFC location in Dubai an exhibition of Eric Parnes' photographs of the remaining interiors of the Former Embassy of Iran in Washington, D.C. The building has been "long and abandoned", and still is, shuttered and inaccessible in over three decades since its closure circa 1979-1980 with the Iranian Revolution and the resulting severance of dialogue with the United States due to the Iran Hostage Crisis . Parnes' imagery showcases the remaining visual legacy of the Embassy, renowned for its active social presence in the 1960s and 1970s as an immensely popular party destination in Washington, D.C. under the leadership of then-Ambassador Ardeshir Zahedi, who was interviewed during the exhibition about Parnes stating “We have had a long friendship,” he said. “Iran and the U.S., they need each other. They may be friends; they must be friends.”. Frequent political and celebrity guests included Barbra Streisand, Elizabeth Taylor, Frank Sinatra, Sen. Edward "Ted" Kennedy, Secretary of State Henry Kissinger and Andy Warhol.Barbara Walters wrote: "The number one embassy when it came to extravagance and just plain enjoyment was the Iranian Embassy." Parnes' stylized photographs, on the other hand, now show an empty, dark building yet that still holds remarkably preserved elements of elaborate Persian mosaics and mirrored rooms amidst the general decay.
Document 8: South Korea: On June 25, 1950, North Korea invaded South Korea, sparking the Korean War, the Cold War's first major conflict, which continued until 1953. At the time, the Soviet Union had boycotted the United Nations (UN), thus forfeiting their veto rights. This allowed the UN to intervene in a civil war when it became apparent that the superior North Korean forces would unify the entire country. The Soviet Union and China backed North Korea, with the later participation of millions of Chinese troops. After an ebb and flow that saw both sides almost pushed to the brink of extinction, and massive losses among Korean civilians in both the north and the south, the war eventually reached a stalemate. The 1953 armistice, never signed by South Korea, split the peninsula along the demilitarized zone near the original demarcation line. No peace treaty was ever signed, resulting in the two countries remaining technically at war. Over 1.2 million people died during the Korean War.
Document 9: Iran: Iran has the second largest proved gas reserves in the world after Russia, with 33.6 trillion cubic metres, and third largest natural gas production in the world after Indonesia, and Russia. It also ranks fourth in oil reserves with an estimated 153,600,000,000 barrels. It is OPEC's 2nd largest oil exporter and is an energy superpower. In 2005, Iran spent US$4 billion on fuel imports, because of contraband and inefficient domestic use. Oil industry output averaged 4 million barrels per day (640,000 m3/d) in 2005, compared with the peak of six million barrels per day reached in 1974. In the early years of the 2000s (decade), industry infrastructure was increasingly inefficient because of technological lags. Few exploratory wells were drilled in 2005.
Document 10: Iran hostage crisis: The Iran hostage crisis was a diplomatic standoff between Iran and the United States of America. Fifty - two American diplomats and citizens were held hostage for 444 days from November 4, 1979, to January 20, 1981, after a group of Iranian college students belonging to the Muslim Student Followers of the Imam's Line, who supported the Iranian Revolution, took over the U.S. Embassy in Tehran. It stands as the longest hostage crisis in recorded history.
Document 11: Iran: In 2004, a large share of natural gas reserves in Iran were untapped. The addition of new hydroelectric stations and the streamlining of conventional coal and oil-fired stations increased installed capacity to 33,000 megawatts. Of that amount, about 75% was based on natural gas, 18% on oil, and 7% on hydroelectric power. In 2004, Iran opened its first wind-powered and geothermal plants, and the first solar thermal plant is to come online in 2009. Iran is the third country in the world to have developed GTL technology.
Document 12: Korean War: In April 1950, Stalin gave Kim permission to invade the South under the condition that Mao would agree to send reinforcements if they became needed. Stalin made it clear that Soviet forces would not openly engage in combat, to avoid a direct war with the Americans. Kim met with Mao in May 1950. Mao was concerned that the Americans would intervene but agreed to support the North Korean invasion. China desperately needed the economic and military aid promised by the Soviets. At that time, the Chinese were in the process of demobilizing half of the PLA's 5.6 million soldiers. However, Mao sent more ethnic Korean PLA veterans to Korea and promised to move an army closer to the Korean border. Once Mao's commitment was secured, preparations for war accelerated.
Document 13: Iran: On November 4, 1979, a group of students seized the United States Embassy and took the embassy with 52 personnel and citizens hostage, after the United States refused to return Mohammad Reza Pahlavi to Iran to face trial in the court of the new regime. Attempts by the Jimmy Carter administration to negotiate for the release of the hostages, and a failed rescue attempt, helped force Carter out of office and brought Ronald Reagan to power. On Jimmy Carter's final day in office, the last hostages were finally set free as a result of the Algiers Accords.
Document 14: Iranian Embassy siege: The Iranian Embassy siege took place from 30 April to 5 May 1980, after a group of six armed men stormed the Iranian embassy in South Kensington, London. The gunmen, members of an Iranian Arab group campaigning for Arab national sovereignty in the southern Iranian region of Khuzestan Province, took 26 people hostage -- mostly embassy staff, but also several visitors as well as a police officer who had been guarding the embassy. They demanded the release of Arab prisoners from prisons in Khuzestan and their own safe passage out of the United Kingdom. Margaret Thatcher's government quickly resolved that safe passage would not be granted, and a siege ensued. Over the following days, police negotiators secured the release of five hostages in exchange for minor concessions, such as the broadcasting of the hostage - takers' demands on British television.
Document 15: Iran: Tehran is the country's capital and largest city, as well as its leading cultural and economic center. Iran is a major regional and middle power, exerting considerable influence in international energy security and the world economy through its large reserves of fossil fuels, which include the largest natural gas supply in the world and the fourth-largest proven oil reserves. Iran's rich cultural legacy is reflected in part by its 19 UNESCO World Heritage Sites, the fourth-largest number in Asia and 12th-largest in the world.
ground_truth: 153,600,000,000 barrels
sub_queries: Who did the Soviets not want to engage in conflict? Answer: the Americans
where were 66 the Americans held hostage for 444 days in the late 1970s Answer: Iran
How much oil reserves does Iran have? Answer: 153,600,000,000 barrels