JB
John Claude Brannan
John Claude Brannan is a lawyer in Houston, TX who works for Simpson Thacher & Bartlett LLP. Practice areas include Business, Oil, Gas and Energy Resources. Licensed in Texas since 2016. Graduated from University of Oklahoma in 2016.
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Law school
Bar admission
Office
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JB
John Claude Brannan
Simpson Thacher & Bartlett LLPHouston, TX·9 years licensed
Claim profileContact attorney
John Claude Brannan is a lawyer in Houston, TX who works for Simpson Thacher & Bartlett LLP. Practice areas include Business, Oil, Gas and Energy Resources. Licensed in Texas since 2016. Graduated from University of Oklahoma in 2016.
Law school
University of Oklahoma
Class of 2016
Bar admission
2016
State Bar of TX · No. 24101546
Office
1000 Main Street, Suite 2900
Houston, TX 77002
Disciplinary
None on record
Clean since admission
Career history
2 observed firms
Based on State Bar of Texas snapshots — each row is a firm the attorney was registered with at one of our quarterly pulls.
- Sidley Austin LLPAS OF MAY 2023Private Law Practice · Dallas, TX
- Simpson Thacher & Bartlett LLPAPR 2026 — PRESENTPrivate Law Practice · Houston, TX
Case data
Case data
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Practice & jurisdiction
Practice areas
- Business
- Oil, Gas and Energy Resources
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Last refreshed Jun 2026