As a result of this merger, the Continental Oil Company was born. The old Continental Oil company headquarters were in Denver, Colorado and the Marland headquarters were in New York City. Ponca City,Oklahoma was chosen to be the new company headquarters. The trademark of the new company became the combination of the Marland red triangle logo with the Conoco name attached. This new symbol was used by Conoco from 1929 through the middle 1970’s, when the Conoco's round capsule was adopted. Like so many other oil companies of the time, Conoco grew by expansion and the purchase of other regional companies. During the 1950’s Conoco bought Western Oil of Minneapolis, F.P. Kendall and Company (Kayo) of Chattanooga, and Douglas Oil Company of Los Angeles, California.On September 30, 1981 DuPont acquired 100 percent of Conoco's stock in a transaction worth about $7.4 billion -- the largest merger in U.S. history at the time., Conoco became a wholly owned DuPont subsidiary. On October 22, 1998, Conoco stock began trading again at the New York Stock Exchange, using a new symbol, "COC," honoring the name it had held for so many years - Continental Oil Company.
ConocoPhillips
Conoco Inc. and Phillips Petroleum Company grew and prospered, becoming leaders in the global energy industry. On August 30, 2002, they combined their complementary strengths and shared values to create ConocoPhillips as we know them today.
