RING ENERGY INC

Ticker: REI CUSIP: 76680V108 Class: Common Stock

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's Holding History (CIK: 0001644956)

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

Q1 2016

Shares 158,784 Value ($000) $802 Avg Close $4.97 Range $4.00 - $7.22

Q4 2015

Shares 900,128 Value ($000) $6,346 Avg Close $9.51 Range $6.57 - $11.53

Q3 2015

Shares 916,628 Value ($000) $9,047 Avg Close $9.56 Range $7.62 - $11.54

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2016	158,784	$802	$4.97	$4.00 - $7.22
Q4 2015	900,128	$6,346	$9.51	$6.57 - $11.53
Q3 2015	916,628	$9,047	$9.56	$7.62 - $11.54