CMS ENERGY CORP

Ticker: CMS CUSIP: 125896100 Class: COM

CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT's Holding History (CIK: 0001329375)

Note: Option positions (PUT/CALL) are excluded.

Q1 2014

Shares 26,540 Value ($000) $777 Avg Close $19.34 Range $18.00 - $20.62

Q4 2013

Shares 36,170 Value ($000) $968 Avg Close $18.61 Range $17.74 - $19.44

Q3 2013

Shares 24,000 Value ($000) $632 Avg Close $18.61 Range $17.69 - $19.67

Q2 2013

Shares 10,400 Value ($000) $283 Avg Close $19.06 Range $17.54 - $20.42

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2014	26,540	$777	$19.34	$18.00 - $20.62
Q4 2013	36,170	$968	$18.61	$17.74 - $19.44
Q3 2013	24,000	$632	$18.61	$17.69 - $19.67
Q2 2013	10,400	$283	$19.06	$17.54 - $20.42