Dennis Ellis, Energy Attorney in Cheyenne, Wyoming
Over 26 years of legal practice · focused on Energy, Environmental, and General
Anadarko Petroleum Corp.
Cheyenne, WY
Practicing energy in Cheyenne since 2000.
- 26+
- Years practicing
- 2
- Bar admissions
Practices in
Are you Dennis Ellis?
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Quick answer
Dennis Ellis is an anadarko petroleum corp. based in Cheyenne, WY. The practice focuses on Energy, Environmental, and General. Dennis has over 26 years of legal experience.
- Based in
- Cheyenne, WY
- Experience
- over 26 years
- Known for
- Energy · Environmental · General
- Handles Energy, Environmental, and General matters from Cheyenne, WY.
- Over 26 years of practice as a licensed attorney.
About Dennis Ellis: Dennis Ellis is an anadarko petroleum corp. based in Cheyenne, WY. The practice focuses on Energy, Environmental, and General. Dennis has over 26 years of legal experience.
Areas of practice
Dennis's practice areas in Cheyenne
Dennis concentrates on energy, environmental, and general. Each area below outlines the kind of case Dennis handles, typical outcomes to expect, and how the intake process starts.
Energy
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Environmental
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General
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Energy cases in Cheyenne, Wyoming
Dennis takes energy matters in Cheyenne, Wyoming. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Dennis agrees to represent you.
Environmental cases in Cheyenne, Wyoming
Dennis takes environmental matters in Cheyenne, Wyoming. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Dennis agrees to represent you.
General cases in Cheyenne, Wyoming
Dennis takes general matters in Cheyenne, Wyoming. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Dennis agrees to represent you.
Biography
Dennis Ellis, energy attorney serving Cheyenne
Dennis Ellis is an anadarko petroleum corp. based in Cheyenne, WY. The practice focuses on Energy, Environmental, and General. Dennis has over 26 years of legal experience. Dennis works from Cheyenne, Wyoming and takes on energy matters across the region.
Mr. Dennis Ellis is a lawyer practicing energy, environmental law, public land law. Dennis received a B.A. degree from University of Wyoming in 1996, and has been licensed for 26 years. Dennis practices in Cheyenne, WY.
Dennis's approach to energy cases
Mr. Dennis Ellis is a lawyer practicing energy, environmental law, public land law. Dennis received a B.A. degree from University of Wyoming in 1996, and has been licensed for 26 years. Dennis practices in Cheyenne, WY.
The kind of cases Dennis takes
Dennis reviews new inquiries case-by-case for energy, environmental, and general matters in Cheyenne and the surrounding Wyoming area.
Credentials
Credentials — where Dennis studied and practices
University of Wyoming
J.D. · 2000
University of Wyoming
B.A. · 1996
Jurisdictions
Dennis's state bar admissions
Colorado
2001 · ACTIVE
Wyoming
2000 · ACTIVE
Dennis studied at J.D. in University of Wyoming and B.A. in University of Wyoming.
Law school and academic background
Dennis completed J.D. in University of Wyoming and B.A. in University of Wyoming. Formal legal training is one signal of substantive knowledge — the day-to-day practice Dennis runs in Wyoming is where that training gets applied to real client questions.
Locations
Office locations for Dennis Ellis in Cheyenne, Wyoming
Dennis's primary office is at Cheyenne, WY, 82003-0454. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of Dennis Ellis
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Schedule your consultationHiring guide
How to hire Dennis Ellis — what to expect in your first consultation
Working with a new energy attorney should feel structured. Here's how the first two conversations with Dennis usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Dennis charges for the initial consult. That fee is credited toward representation if you retain Dennis's office.
What to bring to your first meeting
Bring any documents you already have — police reports, medical records, filed pleadings, correspondence from an insurer, a copy of the contract at issue. If you're not sure, err on the side of bringing everything; Dennis will tell you what matters and what doesn't.
Questions to ask a energy attorney in Cheyenne, Wyoming
A short list to run through before you commit: How many energy matters have you handled in the last year? What's your fee structure? Who else in the office will work on this? What's your realistic estimate of timeline and range of outcomes? How do I reach you between meetings?
Fees & payment
Fees, payment methods, and consultation options for Dennis
Dennis discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in energy practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every energy matter is priced differently. Simple document review might be a flat fee. Injury litigation is often contingency. Complex commercial disputes usually run hourly with a retainer. Dennis confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Dennis's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many energy practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Dennis Ellis
How much does it cost to hire Dennis for a energy case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Dennis walks through the likely range during the consult so there are no surprises.
Does Dennis offer a free consultation?
Dennis charges for the initial consult; that fee is credited toward representation if you retain Dennis's office. Some energy attorneys offer free consults — check Dennis's current terms during booking.
How long do energy cases in Wyoming typically take?
Simple energy matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. Dennis gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Dennis take my case if I'm outside Cheyenne?
Dennis is licensed in Wyoming. Matters governed by Wyoming law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Dennis will tell you if the case is a fit or refer you to someone closer to your court.
What should I bring to my first meeting with Dennis?
Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. Dennis will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Dennis accepting new energy clients right now?
Dennis's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Energy attorneys serving Cheyenne, Casper and Jackson in Wyoming
Dennis handles energy matters throughout Wyoming. Each city below is a direct link into the search page for verified energy attorneys in that community.
More counsel
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If Dennis's intake is full or the fit isn't right, these energy attorneys in Cheyenne handle similar matters. Every profile below is verified and open to consultations.





