MCKESSON CORP

Ticker: MCK CUSIP: 58155Q103 Class: COM

WEXFORD CAPITAL LP's Holding History (CIK: 0001048462)

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

Q3 2015

Shares 55,157 Value ($000) $10,206 Avg Close $195.59 Range $147.68 - $218.48

Q3 2014

Shares 16,550 Value ($000) $3,222 Avg Close $176.84 Range $170.49 - $183.89

Q2 2014

Shares 20,500 Value ($000) $3,817 Avg Close $163.23 Range $149.40 - $176.12

Q1 2014

Shares 23,000 Value ($000) $4,061 Avg Close $160.13 Range $146.04 - $172.44

Q4 2013

Shares 5,000 Value ($000) $807 Avg Close $140.55 Range $117.83 - $152.56

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2015	55,157	$10,206	$195.59	$147.68 - $218.48
Q3 2014	16,550	$3,222	$176.84	$170.49 - $183.89
Q2 2014	20,500	$3,817	$163.23	$149.40 - $176.12
Q1 2014	23,000	$4,061	$160.13	$146.04 - $172.44
Q4 2013	5,000	$807	$140.55	$117.83 - $152.56