Property Plant And Equipment

12 Months Ended

Dec. 31, 2017

PROPERTY, PLANT AND EQUIPMENT.

PROPERTY, PLANT AND EQUIPMENT

18. PROPERTY, PLANT AND EQUIPMENT

($ millions)		Oil and Gas Properties		Plant and Equipment		Total
Cost
At December 31, 2015		32 635		61 077		93 712
	Additions	1 428		5 142		6 570
	Transfers from exploration and evaluation	65		—		65
	Acquisitions (notes 7 and 8)	1 678		9 128		10 806
	Changes in decommissioning and restoration	(68	)	21		(47	)
	Disposals and derecognition	(166	)	(803	)	(969	)
	Foreign exchange adjustments	(1 431	)	(121	)	(1 552	)
	Reclassified to assets held for sale (notes 36 and 37)	—		(907	)	(907	)
At December 31, 2016		34 141		73 537		107 678
	Additions	1 235		5 875		7 110
	Acquisitions (note 35)	25		310		335
	Changes in decommissioning and restoration	821		22		843
	Disposals and derecognition	—		(884	)	(884	)
	Foreign exchange adjustments	(13	)	(256	)	(269	)
	Reclassified from assets held for sale (note 37)	—		35		35
At December 31, 2017		36 209		78 639		114 848
Accumulated provision
At December 31, 2015		(14 442	)	(18 119	)	(32 561	)
	Depreciation and depletion	(2 598	)	(3 133	)	(5 731	)
	Disposals and derecognition	—		645		645
	Foreign exchange adjustments	978		55		1 033
	Reclassified to assets held for sale (notes 36 and 37)	—		195		195
At December 31, 2016		(16 062	)	(20 357	)	(36 419	)
	Depreciation and depletion	(1 916	)	(3 514	)	(5 430	)
	Disposals and derecognition	—		368		368
	Foreign exchange adjustments	3		126		129
	Reclassified from assets held for sale (note 37)	—		(3	)	(3	)
At December 31, 2017		(17 975	)	(23 380	)	(41 355	)
Net property, plant and equipment
	December 31, 2016	18 079		53 180		71 259
	December 31, 2017	18 234		55 259		73 493

	Dec 31, 2017				Dec 31, 2016
($ millions)	Cost	Accumulated Provision		Net Book Value	Cost	Accumulated Provision		Net Book Value
Oil Sands	79 625	(22 664	)	56 961	73 882	(19 341	)	54 541
Exploration and Production	21 007	(12 990	)	8 017	20 058	(12 020	)	8 038
Refining and Marketing	13 137	(4 906	)	8 231	12 741	(4 363	)	8 378
Corporate, Energy Trading and Eliminations	1 079	(795	)	284	997	(695	)	302
	114 848	(41 355	)	73 493	107 678	(36 419	)	71 259

At December 31, 2017, the balance of assets under construction and not subject to depreciation or depletion was $15.9 billion (December 31, 2016 – $16.0 billion).

At December 31, 2017, Property, Plant and Equipment included finance leases with a net book value of $1.4 billion (December 31, 2016 – $1.2 billion).