MAMMOTH ENERGY SVCS INC

Ticker: TUSK CUSIP: 56155L108 Class: COM

NEW YORK STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0000314969)

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

Q1 2019

Shares 1,100 Value ($000) $18 Avg Close $21.35 Range $16.27 - $24.62

Q4 2018

Shares 1,100 Value ($000) $20 Avg Close $24.57 Range $16.81 - $30.61

Q2 2018

Shares 700 Value ($000) $24 Avg Close $35.13 Range $28.34 - $42.30

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2019	1,100	$18	$21.35	$16.27 - $24.62
Q4 2018	1,100	$20	$24.57	$16.81 - $30.61
Q2 2018	700	$24	$35.13	$28.34 - $42.30