JI
John S. Irwin
John S. Irwin is a lawyer in Amarillo, TX who works for Sprouse Shrader Smith PLLC. Practice areas include Oil, Gas and Energy Resources, Real Estate. Board certifications include Real Estate Law - Farm and Ranch, Oil, Gas and Mineral Law. Licensed in Texas since 1977. Graduated from Baylor University in 1977.
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Law school
Bar admission
Office
Disciplinary
JI
John S. Irwin
Sprouse Shrader Smith PLLCAmarillo, TX·49 years licensed
Claim profileContact attorney
John S. Irwin is a lawyer in Amarillo, TX who works for Sprouse Shrader Smith PLLC. Practice areas include Oil, Gas and Energy Resources, Real Estate. Board certifications include Real Estate Law - Farm and Ranch, Oil, Gas and Mineral Law. Licensed in Texas since 1977. Graduated from Baylor University in 1977.
Law school
Baylor University
Class of 1977
Bar admission
1977
State Bar of TX · No. 10426200
Office
701 S Taylor St Ste 500
Amarillo, TX 79101
Disciplinary
None on record
Clean since admission
Case data
Case data
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Practice & jurisdiction
Practice areas
- Oil, Gas and Energy Resources
- Real Estate
Courts admitted
- Texas Northern District Court
Credentials
Board certifications
Real Estate Law - Farm and Ranch
TBLS · Certified 1989
Oil, Gas and Mineral Law
TBLS · Certified 1991
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Last refreshed Jun 2026