SUPPLEMENTARY MINERAL RESERVE INFORMATION (UNAUDITED) (Tables)

12 Months Ended

Dec. 31, 2013

Supplementary Mineral Reserve Information [Abstract]

Estimated Recoverable Proven and Probable Reserves by Location

	Recoverable Proven and Probable Mineral Reserves
	Estimated at December 31, 2013
	Coppera (billion pounds)	Gold (million ounces)	Molybdenum (billion pounds)
North America	36.2	0.4	2.55
South America	37.0	1.1	0.71
Indonesia	30.0	29.8	—
Africa	8.0	—	—
Consolidatedb	111.2	31.3	3.26
Net equity interestc	88.6	28.3	2.93

a. Consolidated recoverable copper reserves included 3.3 billion pounds in leach stockpiles and 1.4 billion pounds in mill stockpiles.

b. Consolidated reserves represented estimated metal quantities after reduction for joint venture partner interests at the Morenci mine in North America and the Grasberg minerals district in Indonesia. Excluded from the table above were FCX’s estimated recoverable proven and probable reserves of 0.87 billion pounds of cobalt at Tenke and 308.5 million ounces of silver in Indonesia, South America and North America, which were determined using long-term average prices of $10 per pound for cobalt and $15 per ounce for silver.

c. Net equity interest reserves represented estimated consolidated metal quantities further reduced for noncontrolling interest ownership. Excluded from the table above were FCX’s estimated recoverable proven and probable reserves of 0.48 billion pounds of cobalt at Tenke and 252.9 million ounces of silver in Indonesia, South America and North America.

Supplementary Reserve Information at 100% Basis by Location

	Recoverable Proven and Probable Mineral Reserves
	Estimated at December 31, 2013
		Average Ore Grade Per Metric Tona					Recoverable Proven and Probable Reservesb
	Orea (million	Copper	Gold		Molybdenum		Copper (billion	Gold (million		Molybdenum (billion
	metric tons)	(%)	(grams)		(%)		pounds)	ounces)		pounds)
North America
Developed and producing:
Morenci	3,779	0.27	—		—	c	14.6	—		0.15
Bagdad	1,449	0.31	—	c	0.02		7.9	0.1		0.39
Safford	149	0.45	—		—		1.2	—		—
Sierrita	2,534	0.23	—	c	0.03		11.0	0.1		1.08
Miami	15	0.43	—		—		0.2	—		—
Chino	376	0.42	0.02		—	c	2.6	0.2		0.01
Tyrone	69	0.34	—		—		0.5	—		—
Henderson	105	—	—		0.17		—	—		0.33
Climax	189	—	—		0.16		—	—		0.61
Undeveloped:
Cobre	73	0.39	—		—		0.3	—		—
South America
Developed and producing:
Cerro Verde	4,047	0.37	—		0.01		29.4	—		0.71
El Abra	576	0.45	—		—		3.6	—		—
Candelaria	281	0.58	0.14		—		3.9	1.1		—
Ojos del Salado	8	1.00	0.23		—		0.1	—	c	—
Indonesia
Developed and producing:
Grasberg open pit	206	0.95	1.08		—		3.6	5.8		—
Deep Ore Zone	152	0.56	0.73		—		1.6	2.8		—
Big Gossan	54	2.22	0.97		—		2.5	1.1		—
Undeveloped:
Grasberg Block Cave	1,000	1.02	0.78		—		18.9	16.1		—
Kucing Liar	420	1.24	1.07		—		9.8	6.5		—
Deep Mill Level Zone	526	0.83	0.70		—		8.3	9.3		—
Africa
Developed and producing:
Tenke Fungurume	113	3.34	—		—		8.0	—		—
Total 100% basis	16,121						128.0	43.1		3.28
Consolidatedd							111.2	31.3		3.26
FCX’s equity sharee							88.6	28.3		2.93

a. Excludes material contained in stockpiles.

b. Included estimated recoverable metals contained in stockpiles.

c. Amounts not shown because of rounding.

d. Consolidated reserves represented estimated metal quantities after reduction for joint venture partner interests at the Morenci mine in North America and the Grasberg minerals district in Indonesia.

e. Net equity interest reserves represented estimated consolidated metal quantities further reduced for noncontrolling interest ownership.