Atty. Gregory A. McKenzie

Atty. Gregory A. McKenzie

Gregory A. McKenzie is a lawyer practicing oil and gas, environmental, litigation.

Oklahoma City Oklahoma City 54 yrs experience 54 year
Call (580) 297-2504 Book Appointment

Profile Summary

About Gregory A. McKenzie at a glance

Gregory A. McKenzie is an Of Counsel based in Oklahoma City, Oklahoma, practicing at Crowe And Dunlevy. They have 54+ years of legal experience, licensed to practice since 1972. Their practice focuses on litigation, environmental, and energy. Admitted to practice in District of Columbia (1972), Vermont (1973), U.S. District Court, District of Vermont (1973), and U.S. Supreme Court (1976). Educated at George Washington University (J.D., 1972) and University of Oklahoma (B.A., 1969). Recognitions include AV Preeminent. Active member of Oklahoma County, Oklahoma (Chairman, Bench and Bar Committee, 1991) and Vermont Bar Associations. Serands clients in Oklahoma City, OK and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Gregory A. McKenzie is a lawyer practicing oil and gas, environmental, litigation
  • Gregory A. received a B.A. degree from University of Oklahoma in 1969, and has been licensed for 54 years
  • Gregory A. practices at Crowe & Dunlevy in Oklahoma City, OK

Practice Areas Explained

Gregory A. McKenzie's Areas of Practice

Each practice area below reflects the types of cases Gregory A. McKenzie handles, with a brief overview of what that area of law covers.

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Gregory A. McKenzie is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Oklahoma →

Environmental Law

Environmental attorneys for regulatory compliance, contamination, land use, and natural resource law.

Gregory A. McKenzie is one of 56,434 environmental attorneys indexed nationally. Browse environmental attorneys in Oklahoma →

Energy & Utilities Law

Energy attorneys for oil & gas, renewables, utility regulation, and energy sector transactions.

Gregory A. McKenzie is one of 36,230 energy attorneys indexed nationally. Browse energy attorneys in Oklahoma →

Jurisdictional Context

Why local counsel matters in Oklahoma

Practicing law in Oklahoma. Legal matters in Oklahoma are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Oklahoma City are typically filed in the local municipal court or the appropriate Oklahoma state district court, depending on subject matter and amount in controversy. An attorney licensed in Oklahoma brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Oklahoma courts without local counsel or pro hac vice admission.

Looking for additional Oklahoma attorneys? Browse all attorneys in Oklahoma City or all attorneys in Oklahoma.

Frequently Asked

Common questions about Gregory A. McKenzie

Where is Gregory A. McKenzie's law office located?
Gregory A. McKenzie's law practice is located in Oklahoma City, Oklahoma. The firm is Crowe And Dunlevy. You can contact the office directly through this profile page.
What practice areas does Gregory A. McKenzie handle?
Gregory A. McKenzie focuses on litigation, environmental, energy. Each practice area listed reflects experience handling cases of that type in Oklahoma.
How long has Gregory A. McKenzie practiced law?
Gregory A. McKenzie has 54+ years of legal experience and has been licensed since 1972.
Where did Gregory A. McKenzie go to law school?
Gregory A. McKenzie earned their education at (J.D., 1972); (B.A., 1969).
How can I contact Gregory A. McKenzie for a consultation?
You can contact Gregory A. McKenzie directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Gregory A. McKenzie received?
Gregory A. McKenzie's notable recognition includes: AV Preeminent.

Education

J.D.
George Washington University
- 1972
B.A.
University of Oklahoma
- 1969

Awards

AV Preeminent

Bar Admissions

District of Columbia
Admitted: 1972
Vermont
Admitted: 1973
U.S. District Court, District of Vermont
Admitted: 1973
U.S. Supreme Court
Admitted: 1976
U.S. District Court, Western District of Oklahoma
Admitted: 1982
Oklahoma
Admitted: 1982

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