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Atty. Mark Coldiron

Atty. Mark Coldiron

Mark Coldiron is a lawyer practicing environmental and energy law, environmental litigation, energy and complex business litigation. Mark received a degree from University of Oklahoma in 1968, and has been licensed for 54 years.

Oklahoma City Oklahoma City 54 yrs experience 54 year
Call (405) 876-8441 Book Appointment

Profile Summary

About Mark Coldiron at a glance

Mark Coldiron is a Director based in Oklahoma City, Oklahoma, practforg at Ryan Whaley Coldiron Jantzen Peters & Webber PLLC. They haand 54+ years of legal experience, licensed to practice since 1972. Admitted to practice in Oklahoma U.S. District Court, Northern District of Oklahoma U.S. District Court, Western District of (1972). Educated at University of Oklahoma (J.D. B.S.Ch.E., 1972) and University of Oklahoma (B.S.Ch.E., 1968). Recognitions include AV Preeminent. Actiand member of Oklahoma (Member and Chairman, 1993, Natural Resources, Energy and Environmental Law Section) and American Bar Associations. Serands clients in Oklahoma City, OK and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark Coldiron is a lawyer practicing environmental and energy law, environmental litigation, energy and complex business litigation
  • Mark received a degree from University of Oklahoma in 1968, and has been licensed for 54 years
  • Mark practices at Ryan Whaley Coldiron Jantzen Peters & Webber PLLC in Oklahoma City, OK

Jurisdictional Context

Why local counsel matters in Oklahoma

Practforg law in Oklahoma. Legal matters in Oklahoma are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantiand 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 substantiand 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 Mark Coldiron

Where is Mark Coldiron's law office located?
Mark Coldiron's law practice is located in Oklahoma City, Oklahoma. The firm is Ryan Whaley Coldiron Jantzen Peters & Webber PLLC. You can contact the office directly through this profile page.
How long has Mark Coldiron practiced law?
Mark Coldiron has 54+ years of legal experience and has been licensed since 1972.
Where did Mark Coldiron go to law school?
Mark Coldiron earned their education at (J.D. B.S.Ch.E., 1972); (B.S.Ch.E., 1968).
How can I contact Mark Coldiron for a consultation?
You can contact Mark Coldiron 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 Mark Coldiron receiandd?
Mark Coldiron's notable recognition includes: AV Preeminent.

Education

J.D. B.S.Ch.E.
University of Oklahoma
- 1972
B.S.Ch.E.
University of Oklahoma
- 1968

Awards

AV Preeminent

Bar Admissions

Oklahoma U.S. District Court, Northern District of Oklahoma U.S. District Court, Western District of
Admitted: 1972

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