Item 6. Selected Financial Data

CMS Energy Corporation

				2017	2016	2015	2014	2013

Operating revenue (in millions)			($)	6,583	6,399	6,456	7,179	6,566

Income from equity method investees (in millions)			($)	15	13	14	15	13

Net income (in millions)1			($)	462	553	525	479	454

Net income available to common stockholders (in millions)			($)	460	551	523	477	452

Average common shares outstanding (in thousands)				280,025	277,851	275,600	270,580	264,511

Earnings per average common share
CMS Energy	–	Basic	($)	1.64	1.99	1.90	1.76	1.71
	–	Diluted	($)	1.64	1.98	1.89	1.74	1.66

Cash provided by operations (in millions)			($)	1,705	1,629	1,640	1,481	1,448

Capital expenditures, excluding assets placed under capital lease (in millions)			($)	1,665	1,672	1,564	1,577	1,325

Total assets (in millions)			($)	23,050	21,622	20,299	19,143	17,249

Long-term debt, excluding current portion (in millions)			($)	9,123	8,640	8,400	7,974	7,060

Non-current portion of capital leases and financing obligation (in millions)			($)	91	110	118	123	138

Cash dividends declared per common share			($)	1.33	1.24	1.16	1.08	1.02

Market price of common stock at year-end			($)	47.30	41.62	36.08	34.75	26.77

Book value per common share at year-end			($)	15.77	15.23	14.21	13.33	12.98

Total employees at year-end				7,952	7,800	7,804	7,747	7,781

Electric Utility Statistics
Sales (billions of kWh)				37	38	37	38	37
Customers (in thousands)				1,826	1,805	1,803	1,793	1,793
Average sales rate per kWh			(¢)	11.98	11.63	11.39	12.04	11.52

Gas Utility Statistics
Sales and transportation deliveries (bcf)				352	358	356	373	352
Customers (in thousands)2				1,776	1,772	1,741	1,733	1,724
Average sales rate per mcf			($)	7.51	7.31	7.89	8.83	8.51

1 Includes income attributable to noncontrolling interests of $2 million in each period.

2 Excludes off-system transportation customers.

Consumers Energy Company

		2017	2016	2015	2014	2013

Operating revenue (in millions)	($)	6,222	6,064	6,165	6,800	6,321

Net income (in millions)	($)	632	616	594	567	534

Net income available to common stockholder (in millions)	($)	630	614	592	565	532

Cash provided by operations (in millions)	($)	1,715	1,681	1,794	1,354	1,375

Capital expenditures, excluding assets placed under capital lease (in millions)	($)	1,632	1,656	1,537	1,573	1,320

Total assets (in millions)	($)	21,099	19,946	18,635	17,824	16,157

Long-term debt, excluding current portion (in millions)	($)	5,561	5,253	5,183	5,131	4,557

Non-current portion of capital leases and financing obligation (in millions)	($)	91	110	118	123	138

Total preferred stock (in millions)	($)	37	37	37	37	37

Number of preferred stockholders at year-end		1,056	1,095	1,156	1,191	1,248

Total employees at year-end		7,496	7,366	7,394	7,388	7,435

Electric Utility Statistics
Sales (billions of kWh)		37	38	37	38	37
Customers (in thousands)		1,826	1,805	1,803	1,793	1,793
Average sales rate per kWh	(¢)	11.98	11.63	11.39	12.04	11.52

Gas Utility Statistics
Sales and transportation deliveries (bcf)		352	358	356	373	352
Customers (in thousands)1		1,776	1,772	1,741	1,733	1,724
Average sales rate per mcf	($)	7.51	7.31	7.89	8.83	8.51

1 Excludes off-system transportation customers.