The table below presents our estimated minimum fuel, purchased power, and other commitments for fuel at September 30, 2017. Ameren’s and Ameren Illinois’ purchased power commitments include the Ameren Illinois agreements entered into as part of the IPA-administered power procurement process. Included in the Other column are minimum purchase commitments under contracts for equipment, design and construction, and meter reading services, among other agreements, at September 30, 2017.



	Coal		Natural Gas^(a)		Nuclear Fuel		Purchased Power^(b)(c)		Methane Gas		Other		Total
Ameren:^(d)
2017	$	162	$	65	$	19	$	59	$	1	$	33	$	339
2018	453		200		67		170		4		57		951
2019	356		148		27		63		4		39		637
2020	79		94		39		13		5		39		269
2021	27		36		45		2		5		26		141
Thereafter	—		47		58		20		64		123		312
Total	$	1,077	$	590	$	255	$	327	$	83	$	317	$	2,649
Ameren Missouri:
2017	$	162	$	14	$	19	$	—	$	1	$	20	$	216
2018	453		42		67		—		4		44		610
2019	356		34		27		—		4		25		446
2020	79		26		39		—		5		25		174
2021	27		13		45		—		5		26		116
Thereafter	—		22		58		—		64		100		244
Total	$	1,077	$	151	$	255	$	—	$	83	$	240	$	1,806
Ameren Illinois:
2017	$	—	$	51	$	—	$	59	$	—	$	13	$	123
2018	—		158		—		170		—		13		341
2019	—		114		—		63		—		14		191
2020	—		68		—		13		—		14		95
2021	—		23		—		2		—		—		25
Thereafter	—		25		—		20		—		—		45
Total	$	—	$	439	$	—	$	327	$	—	$	54	$	820


(a)	Includes amounts for generation and for distribution.


(b)	The purchased power amounts for Ameren and Ameren Illinois exclude agreements for renewable energy credits through 2032 with various renewable energy suppliers due to the contingent nature of the payment amounts.


(c)	The purchased power amounts for Ameren and Ameren Missouri exclude a 102-megawatt power purchase agreement with a wind farm operator, which expires in 2024, due to the contingent nature of the payment amounts.


(d)	Includes amounts for Ameren registrant and nonregistrant subsidiaries.