Atty. John Clare Heymann

Atty. John Clare Heymann

Mr. John Clare Heymann is a lawyer practicing oil and gas law, natural resources, environmental and natural resources.

Corpus Christi Corpus Christi 37 yrs experience 37 year
Call (361) 292-1453 Book Appointment

Profile Summary

About John Clare Heymann at a glance

John Clare Heymann is a Managing Partner based in Corpus Christi, Texas, practicing at Upton, Mickits & Heymann, L.L.P.. They have 37+ years of legal experience, licensed to practice since 1989. Their practice focuses on environmental and energy. Admitted to practice in Texas (1989), U.S. District Court, Southern District of Texas (1989), and U.S. Court of Appeals, Fifth Circuit (1989). Educated at University of Texas at Austin (J.D., 1988) and University of Texas at Austin (B.B.A., 1974). Recognitions include AV Preeminent. Active member of Corpus Christi and American. Serands clients in Corpus Christi, TX and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. John Clare Heymann is a lawyer practicing oil and gas law, natural resources, environmental and natural resources
  • John received a B.B.A. degree from University of Texas at Austin in 1974, and has been licensed for 37 years
  • John practices at Upton, Mickits & Heymann, L.L.P. in Corpus Christi, TX

Practice Areas Explained

John Clare Heymann's Areas of Practice

Each practice area below reflects the types of cases John Clare Heymann handles, with a brief overview of what that area of law covers.

Environmental Law

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

John Clare Heymann is one of 56,434 environmental attorneys indexed nationally. Browse environmental attorneys in Texas →

Energy & Utilities Law

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

John Clare Heymann is one of 36,230 energy attorneys indexed nationally. Browse energy attorneys in Texas →

Jurisdictional Context

Why local counsel matters in Texas

Practicing law in Texas. Legal matters in Texas are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Corpus Christi are typically filed in the local municipal court or the appropriate Texas state district court, depending on subject matter and amount in controversy. An attorney licensed in Texas 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 Texas courts without local counsel or pro hac vice admission.

Looking for additional Texas attorneys? Browse all attorneys in Corpus Christi or all attorneys in Texas.

Frequently Asked

Common questions about John Clare Heymann

Where is John Clare Heymann's law office located?
John Clare Heymann's law practice is located in Corpus Christi, Texas. The firm is Upton, Mickits & Heymann, L.L.P.. You can contact the office directly through this profile page.
What practice areas does John Clare Heymann handle?
John Clare Heymann focuses on environmental, energy. Each practice area listed reflects experience handling cases of that type in Texas.
How long has John Clare Heymann practiced law?
John Clare Heymann has 37+ years of legal experience and has been licensed since 1989.
Where did John Clare Heymann go to law school?
John Clare Heymann earned their education at (J.D., 1988); (B.B.A., 1974).
How can I contact John Clare Heymann for a consultation?
You can contact John Clare Heymann 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 John Clare Heymann received?
John Clare Heymann's notable recognition includes: AV Preeminent.

Education

J.D.
University of Texas at Austin
- 1988
B.B.A.
University of Texas at Austin
- 1974

Awards

AV Preeminent

Bar Admissions

Texas
Admitted: 1989
U.S. District Court, Southern District of Texas
Admitted: 1989
U.S. Court of Appeals, Fifth Circuit
Admitted: 1989

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