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John C. Schwambach
John C. Schwambach is a lawyer in Houston, TX who works for Pierce & O'Neill, LLP. Practice areas include Appellate: Civil, Litigation: Commercial, Oil, Gas and Energy Resources. Court admissions include Fifth Circuit Court of Appeals, Texas Southern District/Bankruptcy Court. Licensed in Texas since 1991. Graduated from University of Texas in 1991.
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JS
John C. Schwambach
Pierce & O'Neill, LLPHouston, TX·34 years licensed
Claim profileContact attorney
John C. Schwambach is a lawyer in Houston, TX who works for Pierce & O'Neill, LLP. Practice areas include Appellate: Civil, Litigation: Commercial, Oil, Gas and Energy Resources. Court admissions include Fifth Circuit Court of Appeals, Texas Southern District/Bankruptcy Court. Licensed in Texas since 1991. Graduated from University of Texas in 1991.
Law school
University of Texas
Class of 1991
Bar admission
1991
State Bar of TX · #17858450
Office
4203 Montrose Blvd
Houston, TX 77006
Disciplinary
None on record
Clean since admission
Case data
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Practice, courts & credentials
Practice areas3 listed
Appellate: CivilLitigation: CommercialOil, Gas and Energy Resources
Courts admitted3 total
Fifth Circuit Court of Appeals
Texas Southern District/Bankruptcy Court
Texas Western District Court
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Last refreshed Aug 2026