WILLIAMS COS INC

Ticker: WMB CUSIP: 969457100 Class: COM

FIRST NATIONAL BANK SIOUX FALLS's Holding History (CIK: 0001085041)

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

Q3 2016

Shares 1,211 Value ($000) $37 Avg Close $16.23 Range $12.01 - $19.31

Q1 2016

Shares 870 Value ($000) $14 Avg Close $9.91 Range $5.84 - $15.24

Q4 2015

Shares 870 Value ($000) $22 Avg Close $19.57 Range $11.96 - $24.82

Q3 2015

Shares 870 Value ($000) $32 Avg Close $27.42 Range $19.32 - $32.32

Q2 2015

Shares 870 Value ($000) $50 Avg Close $28.07 Range $25.45 - $33.76

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2016	1,211	$37	$16.23	$12.01 - $19.31
Q1 2016	870	$14	$9.91	$5.84 - $15.24
Q4 2015	870	$22	$19.57	$11.96 - $24.82
Q3 2015	870	$32	$27.42	$19.32 - $32.32
Q2 2015	870	$50	$28.07	$25.45 - $33.76