John O. Shirley

John O. Shirley

Energy Law Government Relations Practice
Recognized in Best Attorney USA since 2011

About John

John Shirley practices in the area of business law, having represented public utilities before the Louisiana Public Service Commission for over twenty years. His practice consists of representing electric, gas, water and sewer utilities, motor carriers, telecommunications companies, and wind and other renewable energy companies before the Louisiana Public Service Commission. He also consults and lobbies elected public service commissioners, the Louisiana Bond Commission, executive staff and the Louisiana legislature on behalf of his clients.Prior to joining the firm, he was the founding partner of Shirley, Ezell, Guarisco & Marionneaux, LLC.

John Shirley practices in the area of business law, having represented public utilities before the Louisiana Public Service Commission for over twenty years. His practice consists of representing electric, gas, water and sewer utilities, motor carriers, telecommunications companies, and wind and other renewable energy companies before the Louisiana Public Service Commission. He also consults and lobbies elected public service commissioners, the Louisiana Bond Commission, executive staff and the Louisiana legislature on behalf of his clients.Prior to joining the firm, he was the founding partner of Shirley, Ezell, Guarisco & Marionneaux, LLC.

Prior to joining the firm, he was the founding partner of Shirley, Ezell, Guarisco & Marionneaux, LLC.

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Reviews

4.5 / 5

38 Reviews

1,059 Profile Views

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Christopher Schamberger

Jan 29, 2026

Would recommend John O. Shirley for sure to anyone in Baton Rouge needing legal help

Just wanted to say a huge thanks to John O. Shirley and the staff. They really went above and beyond for me and my family during a very difficult legal battle. We couldn't have done it without their c...

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Bradley Thompson

Jan 29, 2026

A huge weight off my shoulders thanks to the amazing work of John O. Shirley

Everyone at John O. Shirley's office in Baton Rouge was so nice and helpful. They made a tough situation a lot easier to deal with by being so patient and explaining everything clearly. I never felt l...

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Shawna Carter

Jan 29, 2026

A huge weight off my shoulders thanks to the amazing work of John O. Shirley

I wasn't sure who to call for my Energy Law problem, but I'm so glad I went with John O. Shirley. They really listened to me and understood my situation. It was such a relief to have someone so knowle...