HALLIBURTON CO

Ticker: HAL CUSIP: 406216101 Class: COM

CHECK CAPITAL MANAGEMENT INC/CA's Holding History (CIK: 0001032814)

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

Q3 2018
Shares 6,251 Value ($000) $253 Avg Close $35.57 Range $30.83 - $40.38
Q2 2018
Shares 6,251 Value ($000) $282 Avg Close $42.64 Range $38.13 - $46.97
Q1 2018
Shares 9,328 Value ($000) $438 Avg Close $42.09 Range $37.81 - $49.30
Q4 2017
Shares 6,851 Value ($000) $335 Avg Close $37.45 Range $34.55 - $41.99
Q3 2017
Shares 6,851 Value ($000) $315 Avg Close $35.43 Range $32.25 - $39.18
Q2 2017
Shares 7,051 Value ($000) $301 Avg Close $38.67 Range $34.93 - $43.12
Q1 2017
Shares 7,451 Value ($000) $367 Avg Close $45.14 Range $39.97 - $49.28
Q4 2016
Shares 8,451 Value ($000) $457 Avg Close $41.70 Range $36.96 - $47.01
Q3 2016
Shares 8,751 Value ($000) $393 Avg Close $36.37 Range $33.52 - $39.02
Q2 2016
Shares 8,917 Value ($000) $404 Avg Close $34.14 Range $27.56 - $38.85
Q1 2016
Shares 8,751 Value ($000) $313 Avg Close $26.95 Range $22.78 - $30.44
Q4 2015
Shares 11,751 Value ($000) $400 Avg Close $30.98 Range $27.31 - $33.86
Q3 2015
Shares 12,151 Value ($000) $430 Avg Close $32.17 Range $25.25 - $35.69
Q2 2015
Shares 12,451 Value ($000) $536 Avg Close $37.52 Range $34.67 - $40.82
Q1 2015
Shares 12,351 Value ($000) $542 Avg Close $33.81 Range $30.18 - $36.38
Q4 2014
Shares 10,951 Value ($000) $431 Avg Close $39.28 Range $30.13 - $52.31
Q3 2014
Shares 6,751 Value ($000) $436 Avg Close $55.20 Range $50.84 - $59.79
Q2 2014
Shares 6,751 Value ($000) $479 Avg Close $51.48 Range $45.85 - $57.32
Q1 2014
Shares 6,751 Value ($000) $398 Avg Close $42.79 Range $38.10 - $48.14
Q4 2013
Shares 6,751 Value ($000) $343 Avg Close $41.29 Range $38.30 - $45.11
Q3 2013
Shares 6,751 Value ($000) $325 Avg Close $37.32 Range $33.32 - $40.31
Q2 2013
Shares 6,751 Value ($000) $282 Avg Close $33.21 Range $29.18 - $36.31
Q1 2013
Shares 6,751 Value ($000) $273 Avg Close $31.52 Range $27.75 - $34.78
Q4 2012
Shares 6,651 Value ($000) $231 Avg Close — Range —