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Hall Estill, a regional Southwestern law firm, has created a practice that draws on the knowledge of skilled attorneys while focusing on client needs. More than 130 top lawyers and legal professionals in Tulsa, Oklahoma City, Denver and Northwest Arkansas represent clients in matters at the local, national and international level.

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Outstanding Talent.
Relentless Representation.

One of the Southwest's most trusted regional law firms since 1966, Hall Estill delivers powerful results to its clients regionally, nationally and internationally. Our more than 130 attorneys represent clients from Fortune 500 corporations and medium-sized companies, to non-profit organizations, emerging businesses and individuals. Our attorneys are leaders in their respective fields and in their communities; regularly publishing and lecturing in their areas of expertise, continuing to build on the firm's reputation of excellence.

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Easement Acquisition & Eminent Domain

Environmental Services

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Easement Acquisition & Eminent Domain

Environmental Services

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Spotlight

Tulsa Attorney Kristen P. Evans named to the 2023 Benchmark Litigation 40 & Under Hot List

Benchmark’s 40 & Under Hot List recognizes the top up-and-coming litigation attorneys in the U.S. Those aged 40 or younger named to this exclusive list have proven their ability as attorneys at their respective firms.

Spotlight

Cybersecurity and Data Privacy Attorney Collin Walke for CNBC - The generative A.I. battle between companies and hackers is starting

“Cyber vulnerabilities are becoming democratized. More and more individuals have the capabilities of hackers, using things like ransomware-as-a-service and AI, and for CISOs and other cyber leaders, the rapid adoption of generative AI “changes the threat landscape tremendously,”

Spotlight

Sign Up Today! Hall Estill's Labor & Employment Team presents the 4th Annual J. Patrick Cremin HR Institute Oct. 18

Webinar covering today's most challenging Human Resources issues. Ideal for those in the HR field, in-house counsel and executives of small to large companies.

Spotlight

Randy McCarthy for Journal of Robotics, Artificial Intelligence & Law - AI Systems Versus Copyright Protection: Exactly Where Should We Draw the Lines?

In this article, the IP Attorney Randy McCarthy advocates changes to the U.S. copyright law to provide clear guidance on what can constitute training data, how copyrighted works can be used by an internal artificial intelligence (AI) system, and the extent to which AI-generated output content can be protected by copyright.

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Randy McCarthy for IP Watchdog - Synthesis versus Innovation: A Practical Guide to protecting IP When Using AI Technology

“So long as the activity taken by the AI system can be fairly characterized as synthesis rather than innovation, it should be permissible to use such a system in creating content that can thereafter be protected by copyright, trademark or patent.”

Spotlight

Attorney Blair Will for Live Now FOX - Health officials seek to downgrade marijuana

The news lit up the world of weed: U.S. health regulators are suggesting that the federal government loosen restrictions on marijuana.

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Attorney Blair Will for San Francisco Chronicle "Game changer" Biden moves to reclassify marijuana under federal law

“This will be a game changer for legalization and marijuana businesses operating across the country,” Blair Will, an attorney representing marijuana cultivators and dispensaries, said.

Spotlight

Kelly Offutt and Kate Janke for the Journal Record - Benefits of Women-Owned Business Certification Program

Certified women-owned businesses can enjoy certain benefits in Oklahoma. These benefits generally include an advantage in competing for both private and public sector contracts.

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Hall Estill Attorneys Recognized as 2024 Best Lawyers in America®, Lawyers of the Year and Ones to Watch

Six Hall Estill attorneys were selected as 2024 Best Lawyers® Lawyers of the Year, over 60 attorneys were selected for inclusion as The Best Lawyers® in America 2024, and nine Best Lawyers® Ones to Watch.

Spotlight

Tulsa Energy & Natural Resources Attorney Sarah Miller Selected to 50 Making a Difference

One of the 50 “Making a Difference” honorees will be recognized as the Journal Record's 2023 Woman of the Year

Spotlight

Patent Attorney Randy McCarthy for The Patent Lawyer -AI, IP and human agency: the real significance of Thaler

Randy McCarthy analyzes the current relationship between AI and inventor in light of available, or unavailable, IP protection for developing technologies which is being influenced by the US Constitution.

Spotlight

Cybersecurity and Data Privacy Attorney Collin Walke - A Cyber Primer: 6 Practical Lookouts for Advising Companies in the 21st Century

The future of commerce is no longer coming; it has arrived. Every single industry is driven by the internet and data, even industries like pipeline and railroad operations. In common parlance, “Data is the new oil.”

Lasting Relationships. Forged Daily.

Outstanding Talent. Relentless Representation.

Find An Attorney

Featured Practice Areas

Easement Acquisition & Eminent Domain

Environmental Services

Litigation

Easement Acquisition & Eminent Domain

Environmental Services

Litigation

Outstanding Talent.
Relentless Representation.