for Cocono. In the end, Seagram and Mobil lost out in the Conoco bidding war. In exchange for its stake in Conoco Inc, Seagram became a 24.3% owner of DuPont. By 1995, Seagram was DuPont's largest single shareholder with four seats on the board of directors. In 1998, DuPont sold 30% of Conoco, and in 1999, DuPont sold the remaining 70% stake it holds in Conoco Inc. When the independent Conoco went public in October 1998, under a retooled name, Continental Oil Company, it resulted in the largest IPO in history. In 2001, Conoco announced it has agreed to buy Gulf Canada for C$6.7 billion ($4.3 billion). Conoco merged with Phillips Petroleum in 2002 to form ConocoPhillips. Corporate headquarters Before the merger, Conoco had its headquarters in what is now the current ConocoPhillips headquarters in the Energy Corridor of Houston; the complex was formerly known as the Conoco Center. The headquarters of Conoco moved to Houston, in 1949. In 1965, the headquarters moved to Manhattan, New York City. In 1972, the headquarters moved to Stamford, Connecticut; in Stamford Conoco occupied space in the three story High Ridge Park complex. In 1982, DuPont announced that Conoco's headquarters would move from Stamford to Wilmington, Delaware. The move occurred in 1982. Edward G. Jefferson, the chairperson of DuPont, said that the headquarters relocation was to bring the head workforces of DuPont and Conoco together. DuPont also announced that it was closing the Conoco offices in Stamford; the lease in the Stamford complex was originally scheduled to expire in 1992. Conoco-Iran deal In 1995, Conoco Inc. was awarded a contract by Iran to develop a huge offshore oilfield in the Persian Gulf. It was the first energy agreement involving Iran and the United States since Washington severed relations with Tehran in 1980. The contract was signed after three years of negotiations. However, the company dropped the plan after the White House announced that President Bill Clinton would issue a directive blocking all such transactions on grounds of national security. Museum The official Conoco museum was completed in 2007 and is located in Ponca City, Oklahoma. Conoco brand Along with sister brands, Phillips 66, and 76, "Conoco" (properly pronounced CON-oco, not Co-NO-co or CO-noco), is a major American brand of oil and gas station that has been owned by Phillips 66 since 2012 and was originally the brand used by its originator, Conoco Inc., from