Shannon E. O'Neil

4.4 (34 reviews )

Washington District of Columbia United States

Energy Law

Recognized in Ones to Watch since 2024

202-973-4200 Website

About Shannon

Shannon E. O'Neil is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law.Shannon E., who practices law in Washington, District of Columbia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Shannon E. is held by other top lawyers in the same geographic and legal practice area.

Shannon E. O'Neil is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law.

Shannon E., who practices law in Washington, District of Columbia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Shannon E. is held by other top lawyers in the same geographic and legal practice area.

Practice Areas

Energy Law

Education

The University of North Carolina at Chapel Hill

Awards & Recognition

Recognized: Energy Law

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Reviews

4.4 / 5

34 Reviews

1,033 Profile Views

Bruce Mraz-Treutel

Feb 02, 2026

A very good experience overall with the entire team at Shannon E. O'Neil's legal practice

I appreciate how Shannon E. O'Neil handled my case. No fluff, just straight to the point and very effective representation for my Energy Law matter. They are obviously very experienced and know how to...

Tyrone Schmitt

Feb 02, 2026

Professional service and clear communication provided by Shannon E. O'Neil in Washington

I've worked with a few lawyers in Washington over the years, but Shannon E. O'Neil stands out for their honesty and thoroughness. They were clear about the process and kept me updated at all times. I...

Gary Altenwerth

Feb 02, 2026

Five stars for the incredible team at Shannon E. O'Neil in Washington - they are amazing

Shannon E. O'Neil is fantastic and very professional. Don't hesitate to hire them if you're in District of Columbia and need help. They really know their stuff and will go the extra mile to make sure...

Yvette Hermann

Feb 02, 2026

Absolutely Great! I couldn't be happier with the service from Shannon E. O'Neil

If you need a Energy Law lawyer, Shannon E. O'Neil is the one to call. Great job and very responsive team. They kept me in the loop and always had time to explain the details of my case. I felt like I...