WESTLAKE CHEM CORP

Ticker: WLK CUSIP: 960413102 Class: Common Stock

TORTOISE CAPITAL ADVISORS, L.L.C.'s Holding History (CIK: 0001280965)

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

Q2 2019

Shares 21 Value ($000) $1 Avg Close $59.69 Range $51.40 - $69.93

Q1 2019

Shares 21 Value ($000) $1 Avg Close $64.77 Range $57.75 - $72.34

Q4 2018

Shares 21 Value ($000) $1 Avg Close $64.35 Range $53.36 - $76.44

Q3 2018

Shares 21 Value ($000) $2 Avg Close $86.83 Range $72.82 - $100.10

Q2 2018

Shares 25,417 Value ($000) $2,736 Avg Close $99.34 Range $90.39 - $110.06

Q1 2018

Shares 36,247 Value ($000) $4,029 Avg Close $98.39 Range $86.89 - $107.41

Q4 2017

Shares 34,505 Value ($000) $3,676 Avg Close $81.78 Range $72.56 - $95.02

Q3 2017

Shares 1,360 Value ($000) $113 Avg Close $64.66 Range $57.52 - $74.59

Q2 2017

Shares 21 Value ($000) $1 Avg Close $55.73 Range $52.23 - $59.49

Q1 2017

Shares 21 Value ($000) $1 Avg Close $55.38 Range $49.25 - $59.68

Q4 2016

Shares 7,764 Value ($000) $435 Avg Close $47.64 Range $42.61 - $53.78

Q3 2016

Shares 14,937 Value ($000) $799 Avg Close $41.92 Range $34.93 - $47.03

Q2 2016

Shares 15,327 Value ($000) $658 Avg Close $39.55 Range $34.26 - $45.64

Q1 2016

Shares 23,133 Value ($000) $1,071 Avg Close $39.11 Range $34.33 - $46.52

Q4 2015

Shares 35,424 Value ($000) $1,924 Avg Close $49.75 Range $44.01 - $54.52

Q3 2015

Shares 26,495 Value ($000) $1,375 Avg Close $49.96 Range $42.26 - $59.13

Q2 2015

Shares 25,797 Value ($000) $1,769 Avg Close $62.10 Range $58.06 - $67.58

Q1 2015

Shares 25,676 Value ($000) $1,847 Avg Close $54.56 Range $46.07 - $62.01

Q4 2014

Shares 23,790 Value ($000) $1,453 Avg Close $57.80 Range $45.45 - $73.16

Q3 2014

Shares 35,411 Value ($000) $3,066 Avg Close $76.69 Range $70.51 - $83.52

Q2 2014

Shares 17,570 Value ($000) $1,472 Avg Close $63.36 Range $52.18 - $72.01

Q1 2014

Shares 2,262 Value ($000) $150 Avg Close $53.68 Range $48.11 - $58.70

Q4 2013

Shares 1,030 Value ($000) $126 Avg Close $47.34 Range $43.59 - $51.55

Q3 2013

Shares 36 Value ($000) $4 Avg Close $42.90 Range $40.28 - $45.40

Q2 2013

Shares 36 Value ($000) $3 Avg Close $37.72 Range $32.17 - $41.82

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2019	21	$1	$59.69	$51.40 - $69.93
Q1 2019	21	$1	$64.77	$57.75 - $72.34
Q4 2018	21	$1	$64.35	$53.36 - $76.44
Q3 2018	21	$2	$86.83	$72.82 - $100.10
Q2 2018	25,417	$2,736	$99.34	$90.39 - $110.06
Q1 2018	36,247	$4,029	$98.39	$86.89 - $107.41
Q4 2017	34,505	$3,676	$81.78	$72.56 - $95.02
Q3 2017	1,360	$113	$64.66	$57.52 - $74.59
Q2 2017	21	$1	$55.73	$52.23 - $59.49
Q1 2017	21	$1	$55.38	$49.25 - $59.68
Q4 2016	7,764	$435	$47.64	$42.61 - $53.78
Q3 2016	14,937	$799	$41.92	$34.93 - $47.03
Q2 2016	15,327	$658	$39.55	$34.26 - $45.64
Q1 2016	23,133	$1,071	$39.11	$34.33 - $46.52
Q4 2015	35,424	$1,924	$49.75	$44.01 - $54.52
Q3 2015	26,495	$1,375	$49.96	$42.26 - $59.13
Q2 2015	25,797	$1,769	$62.10	$58.06 - $67.58
Q1 2015	25,676	$1,847	$54.56	$46.07 - $62.01
Q4 2014	23,790	$1,453	$57.80	$45.45 - $73.16
Q3 2014	35,411	$3,066	$76.69	$70.51 - $83.52
Q2 2014	17,570	$1,472	$63.36	$52.18 - $72.01
Q1 2014	2,262	$150	$53.68	$48.11 - $58.70
Q4 2013	1,030	$126	$47.34	$43.59 - $51.55
Q3 2013	36	$4	$42.90	$40.28 - $45.40
Q2 2013	36	$3	$37.72	$32.17 - $41.82