1912 Freeport Sulphur establishes the city of Freeport in Texas near its new sulphur mine.
1960 Freeport Sulphur confirms Dutch discovery of the Ertsberg copper and gold deposit in Indonesia.
1967 Freeport Indonesia, Incorporated, a newly formed subsidiary, drills and confirms the existence of a copper deposit known as the Ertsberg in Indonesia.
1969 McMoRan Exploration formed by Ken McWilliams (“Mc”), Jim Bob Moffett (“Mo”) and Mack Rankin (“Ran”).
1971 Freeport Sulphur changes name to Freeport Minerals Company as a result of widened activities as a diversified minerals producer.
1981 McMoRan Exploration combined McMoRan Oil & Gas with Freeport Minerals Company, with each entity becoming a subsidiary of the newly formed Freeport-McMoRan Inc. The combined company becomes a major independent oil and gas producer with interests in agricultural minerals – sulphur and phosphoric acid – and in gold, copper, silver and uranium.
1988 Grasberg copper-gold deposit discovered in Indonesia. Freeport-McMoRan Copper Co. is created and listed on the NYSE as FCX.
1991 Freeport-McMoRan Copper Co. changes name to Freeport-McMoRan Copper & Gold Inc. to reflect significant growth in gold reserves.
1995 Freeport-McMoRan Copper & Gold Inc. established as an independent public company through a spin-off from Freeport-McMoRan Inc.
1998 McMoRan Exploration Co. formed with the merger of McMoRan Oil & Gas Company and Freeport-McMoRan Sulphur Co., Inc.
2007 FCX completed the acquisition of Phelps Dodge Corporation, a fully integrated producer of copper and molybdenum with mines in North and South America, and several development projects, including Tenke Fungurume in the Democratic Republic of Congo (DRC).
2013 FCX acquires Plains Exploration & Production Company and McMoRan Exploration Co.
2014 Freeport-McMoRan Copper & Gold Inc. changes name to