RING ENERGY INC

Ticker: REI CUSIP: 76680V108 Class: Common Stock

VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.'s Holding History (CIK: 0001021642)

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

Q1 2018

Shares 1,584,974 Value ($000) $22,745 Avg Close $14.54 Range $12.77 - $16.09

Q4 2017

Shares 1,668,725 Value ($000) $23,195 Avg Close $13.43 Range $11.58 - $15.13

Q3 2017

Shares 1,714,750 Value ($000) $24,847 Avg Close $12.89 Range $11.70 - $14.67

Q2 2017

Shares 383,100 Value ($000) $4,980 Avg Close $12.46 Range $10.55 - $14.14

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	1,584,974	$22,745	$14.54	$12.77 - $16.09
Q4 2017	1,668,725	$23,195	$13.43	$11.58 - $15.13
Q3 2017	1,714,750	$24,847	$12.89	$11.70 - $14.67
Q2 2017	383,100	$4,980	$12.46	$10.55 - $14.14