- 19 66
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1966
Founded as oil & gas firm in Tulsa with 3 attorneys, including Walter Hall
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1967
John Estill and James Hardwick join firm
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1968
Thomas Gable and Thomas Golden join firm
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Early 1970s
Firm begins expansion of legal services into other practice areas
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1974
Fred Nelson joins firm
Until the mid 1970s, Walter Hall serves as sole attorney responsible for firm management. In 1976, the firm elects its first Board of Directors and Managing Partner.
- 19 76
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1977
Washington, D.C. office opens
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Early 1980s
Firm has more than 20 attorneys
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Mid 1980s
The firm changes its name for the last time to Hall, Estill, Hardwick, Gable, Golden & Nelson, P.C.
- 19 86
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1987
Oklahoma City office opens
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1989
Acquisition of Watson McKenzie law firm in Oklahoma City
- 19 96
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1997
Fayetteville, Arkansas office opens
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2003
Firm has 85 attorneys firm wide
- 20 06
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2006
Acquisition of Nichols Wolfe law firm in Tulsa
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2010
Expands Intellectual Property practice in Oklahoma City with addition of 5 attorneys
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2010
Acquisition of Cooper Newsome law firm in Tulsa
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2015
Bentonville, Arkansas office opens
- 20 16
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2016
Denver and Portland offices open
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2016
Firm celebrates 50 year anniversary
- 20 17
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2017
Firm has over 130 attorneys firm wide
- 20 18
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2018
Completes Acquisition of Newton, O'Connor & Ketchum
- 20 20
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2020
Hall Estill Tulsa Attorney confirmed as U.S. District Judge for the Northern, Eastern and Western Districts of Oklahoma
- 20 21
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2021
Hall Estill Tulsa Attorney appointed Oklahoma State Attorney General
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2021
Hall Estill Tulsa breaks ground on new offices in Tulsa’s Blue Dome district
