Context: Through most of Shell's early history, the Shell Oil Company business in the United States was substantially independent with its stock being traded on the NYSE and with little direct involvement from the group's central offices in the running of the American business. However, in 1984, Royal Dutch Shell made a bid to purchase those shares of Shell Oil Company it did not own (around 30%) and despite opposition from some minority shareholders, which led to a court case, Shell completed the buyout for a sum of $5.7 billion.

Question: Shell Oil Company's United States business throughout its early history is described as what?
Answer: substantially independent

Question: On which exchange was Shell Oil Company's U.S. stock historically traded?
Answer: the NYSE

Question: Shell Oil Company historically had little direct involvement from what entity in the running of its American businesses?
Answer: the group's central offices

Question: In what year did Royal Dutch Shell make a bid to purchase approximately 30% of Shell Oil Company's shares?
Answer: 1984

Question: What did Royal Dutch Shell's bid to purchase Shell Oil Company's shares lead to?
Answer: a court case

Question: Shell's early history involved a lot of involvement from what?
Answer: Unanswerable

Question: What percentage of the Shell Oil Company did Royal Dutch Shell own in 1984?
Answer: Unanswerable

Question: How much did the court case cost?
Answer: Unanswerable

Question: When did Royal Dutch Shell try to sell its shares?
Answer: Unanswerable

Question: Who approved of the Royal Dutch shell buyout?
Answer: Unanswerable