SCHLUMBERGER LTD

Ticker: SLB CUSIP: 806857108 Class: COM STK

Yorktown Management & Research Co Inc's Holding History (CIK: 0001313559)

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

Q4 2018

Shares 9,000 Value ($000) $325 Avg Close $40.20 Range $28.75 - $51.73

Q3 2018

Shares 9,000 Value ($000) $548 Avg Close $52.03 Range $48.16 - $56.13

Q2 2018

Shares 15,600 Value ($000) $1,046 Avg Close $55.08 Range $49.65 - $60.38

Q1 2018

Shares 25,600 Value ($000) $1,658 Avg Close $55.74 Range $50.17 - $63.87

Q4 2017

Shares 22,600 Value ($000) $1,523 Avg Close $51.22 Range $48.13 - $54.87

Q3 2017

Shares 13,000 Value ($000) $907 Avg Close $51.87 Range $48.95 - $55.22

Q2 2017

Shares 13,000 Value ($000) $856 Avg Close $55.82 Range $50.94 - $62.85

Q1 2017

Shares 15,800 Value ($000) $1,234 Avg Close $63.35 Range $59.16 - $67.83

Q4 2016

Shares 15,800 Value ($000) $1,326 Avg Close $63.04 Range $59.05 - $67.18

Q1 2016

Shares 16,500 Value ($000) $375 Avg Close $53.13 Range $44.84 - $57.72

Q4 2015

Shares 11,700 Value ($000) $816 Avg Close $56.10 Range $49.76 - $61.62

Q3 2015

Shares 11,700 Value ($000) $807 Avg Close $58.92 Range $50.51 - $64.38

Q2 2015

Shares 11,700 Value ($000) $1,008 Avg Close $66.77 Range $61.74 - $70.26

Q1 2015

Shares 11,700 Value ($000) $976 Avg Close $61.34 Range $55.51 - $65.73

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	9,000	$325	$40.20	$28.75 - $51.73
Q3 2018	9,000	$548	$52.03	$48.16 - $56.13
Q2 2018	15,600	$1,046	$55.08	$49.65 - $60.38
Q1 2018	25,600	$1,658	$55.74	$50.17 - $63.87
Q4 2017	22,600	$1,523	$51.22	$48.13 - $54.87
Q3 2017	13,000	$907	$51.87	$48.95 - $55.22
Q2 2017	13,000	$856	$55.82	$50.94 - $62.85
Q1 2017	15,800	$1,234	$63.35	$59.16 - $67.83
Q4 2016	15,800	$1,326	$63.04	$59.05 - $67.18
Q1 2016	16,500	$375	$53.13	$44.84 - $57.72
Q4 2015	11,700	$816	$56.10	$49.76 - $61.62
Q3 2015	11,700	$807	$58.92	$50.51 - $64.38
Q2 2015	11,700	$1,008	$66.77	$61.74 - $70.26
Q1 2015	11,700	$976	$61.34	$55.51 - $65.73