Schedule 1 – Summary of Proved Oil Reserves Based on Average Prices for 2009 – 2012


	Total			Total – by product						United States			Canada						Malaysia			United Kingdom			Republic of the Congo
(Millions of barrels)	All Products			Oil			Synthetic Oil			Oil			Oil			Synthetic Oil			Oil			Oil			Oil
Proved developed and undeveloped oil reserves:
December 31, 2009		313.4			183.9			129.5			26.4			27.8			129.5			110.1			11.7			7.9
Revisions of previous estimates		22.5			18.0			4.5			3.5			5.4			4.5			4.4			0.4			4.3
Improved recovery		5.8			5.8			0.0			0.0			1.0			0.0			4.8			0.0			0.0
Extensions and discoveries		12.6			12.6			0.0			4.1			5.0			0.0			3.5			0.0			0.0
Production		(46.3	)		(41.5	)		(4.8	)		(7.4	)		(6.4	)		(4.8	)		(24.4	)		(1.2	)		(2.1	)

December 31, 2010		308.0			178.8			129.2			26.6			32.8			129.2			98.4			10.9			10.1
Revisions of previous estimates		21.2			16.0			5.2			2.4			3.1			5.2			8.4			8.1			(6.0	)
Improved recovery		14.2			14.2			0.0			0.0			0.0			0.0			10.7			3.5			0.0
Extensions and discoveries		43.9			43.9			0.0			32.6			6.7			0.0			4.6			0.0			0.0
Production		(37.6	)		(32.7	)		(4.9	)		(6.3	)		(6.0	)		(4.9	)		(17.7	)		(0.9	)		(1.8	)

December 31, 2011		349.7			220.2			129.5			55.3			36.6			129.5			104.4			21.6			2.3
Revisions of previous estimates		2.6			7.9			(5.3	)		13.0			(3.4	)		(5.3	)		(0.4	)		0.3			(1.6	)
Improved recovery		7.2			7.2			0.0			0.0			0.0			0.0			7.2			0.0			0.0
Extensions and discoveries		84.0			84.0			0.0			77.3			2.9			0.0			3.8			0.0			0.0
Purchases of properties		12.5			12.5			0.0			6.5			6.0			0.0			0.0			0.0			0.0
Production		(41.2	)		(36.1	)		(5.1	)		(9.5	)		(5.3	)		(5.1	)		(19.3	)		(1.3	)		(0.7	)

December 31, 2012		414.8			295.7			119.1			142.6			36.8			119.1			95.7			20.6			0.0

Proved developed oil reserves:
December 31, 2009		270.0			150.3			119.7			18.3			26.2			119.7			90.0			11.7			4.1
December 31, 2010		248.3			129.2			119.1			15.8			28.6			119.1			66.5			10.9			7.4
December 31, 2011		238.5			118.0			120.5			20.8			32.6			120.5			57.2			5.1			2.3
December 31, 2012		267.7			148.6			119.1			48.0			29.5			119.1			67.0			4.1			0.0
Proved undeveloped oil reserves:
December 31, 2009		43.4			33.6			9.8			8.1			1.6			9.8			20.1			0.0			3.8
December 31, 2010		59.7			49.6			10.1			10.8			4.2			10.1			31.9			0.0			2.7
December 31, 2011		111.2			102.2			9.0			34.5			4.0			9.0			47.2			16.5			0.0
December 31, 2012		147.1			147.1			0.0			94.6			7.3			0.0			28.7			16.5			0.0

Note:

All oil reserves included in the table above are from consolidated subsidiaries and proportionately consolidated joint ventures. The Company has no proved oil reserves attributable to investees accounted for by the equity method.

2012 Comments for Proved Oil Reserves Changes

Revisions of previous estimates – A positive proved oil reserves revision in 2012 in the U.S. were due to improved well performance in the Eagle Ford Shale and at the Medusa field in the Gulf of Mexico. Downward revisions for conventional oil in Canada related to a lower recovery assessment for certain heavy oil wells in the Seal area. Negative proved oil revisions for synthetic oil in Canada related to an entitlement change based on recent spending projections that increased royalties estimated to be paid to the government. Negative proved oil revisions in Republic of the Congo arose due to a combination of poor well performance on existing wells, a well that went off production in 2012, and generally uneconomic remaining future production due to the most recent oil recovery projections.

Improved recovery – The improved recovery in 2012 in Malaysia was essentially caused by better waterflood response in certain Kikeh field reservoir sands.

Extensions and discoveries – The U.S. proved oil reserves added in 2012 were primarily in the Eagle Ford Shale and were based on use of reliable technology to recognize additional offset undeveloped locations with 80 acre downspacing in certain areas of the play. The oil reserves added in Canada mostly related to additional development drilling off the East Coast at Hibernia and Terra Nova. Malaysia reserves increases primarily arose due to current year development drilling at fields offshore Sarawak.

Purchases of properties – Proved oil reserves added from property acquisitions in 2012 were associated with interests added at the Front Runner and Thunder Hawk fields in the U.S. Gulf of Mexico and in the Seal heavy oil area of Western Canada.