Ronald Tenpas > Vinson & Elkins LLP > Washington DC, United States > Lawyer Profile
Vinson & Elkins LLP Offices
2200 PENNSYLVANIA AVENUE NW
SUITE 500 WEST
WASHINGTON, DC 20037-1701
DISTRICT OF COLUMBIA
United States
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Ronald Tenpas
Work Department
Environmental & Natural Resources
Position
Partner
Career
Ron Tenpas is one of the country’s preeminent environmental litigators. A former Assistant Attorney General (AAG) for the Environment and Natural Resources Division of the U.S. Department of Justice, Ron represents clients in civil and criminal investigations related to alleged environmental violations, imports and other matters. He also represents companies and trade associations in commenting on proposed regulations and in litigation challenging new regulatory provisions.
In counseling clients, Ron draws upon 12 years of experience in the Justice Department. As AAG, a title he held from 2007 until 2009, he managed a 700-person division that included 400 lawyers. He oversaw civil and criminal litigation arising under more than 150 environmental and natural resources laws.
In addition, as AAG Ron defended the government when the government was sued in connection with its own use of natural resources. Ron also advised Cabinet and White House officials on policy and litigation risks associated with the environmental laws. Under Ron’s watch, the Justice Department secured what was at the time the largest criminal penalty under the Clean Air Act.
Before he was appointed AAG, Ron served as an Associate Deputy Attorney General, as the U.S. Attorney in the Southern District of Illinois, and as an Assistant U.S. Attorney in the District of Maryland and the Middle District of Florida. He investigated and tried white-collar matters related to healthcare fraud and public corruption.
A Rhodes Scholar and editor-in-chief of the Virginia Law Review, Ron served as a clerk to Chief Justice William H. Rehnquist of the U.S. Supreme Court.
Lawyer Rankings
United States > Environment > Environment: litigation
Vinson & Elkins LLP offers clients broad expertise in the environmental and natural resources arena and handles crisis management, the defense of high-stakes government investigations, and litigation against regulatory authorities relating to the contention of new regulations. It is active in the manufacturing, oil and gas, and mining industries, and has considerable experience in water, air and contamination cases, as well as those relating to endangered species. The team is led by Ronald Tenpas in Washington DC, with Tenpas recommended for civil and criminal investigations; Austin’s Eric Groten is a key name for CAA issues and defending enforcement actions. Larry Nettles has retired.
United States > Environment > Environment: regulatory
The environmental and natural resources team at Vinson & Elkins LLP is active in the oil and gas, and mining industries, among others and has a strong track record in high-stakes government investigations and enforcement matters, permitting, and litigation when things go wrong. The team is led by Washington DC’s Ronald Tenpas, a key name for in civil and criminal investigations and CAA matters. Matthew Dobbins, also in Houston, handles litigation, regulation and transactional issues, with particular expertise of carbon capture and sequestration (CCS) projects and renewable fuels. Larry Nettles has retired.
Lawyer Rankings
- Environment: litigation United States > Environment
- Environment: regulatory United States > Environment
Top Tier Firm Rankings
- Government > Government relations
- Energy > Energy regulation: oil and gas
- Energy > Energy transactions: oil and gas
- Energy > Renewable/alternative power
- M&A/corporate and commercial > Shareholder activism
Firm Rankings
- Finance > Capital markets: high-yield debt offerings
- Energy > Energy litigation: oil and gas
- Government > Government contracts
- Finance > Project finance
- Transport > Aviation and air travel: finance
- Finance > Capital markets: debt offerings
- Finance > Capital markets: equity offerings
- Antitrust > Cartel
- Real estate > Construction (including construction litigation)
- Labor and employment > Employee benefits, executive compensation and retirement plans: transactional
- Energy > Energy regulation: electric power
- Environment > Environment: litigation
- Environment > Environment: regulatory
- Environment > Environment: transactional
- Tax > International tax
- Antitrust > Merger control
- Real estate > Real estate investment trusts (REITs)
- Dispute resolution > Securities litigation: defense
- Tax > US taxes: non-contentious
- Antitrust > Civil litigation/class actions: defense
- Energy > Energy transactions: electric power
- Dispute resolution > International arbitration
- Dispute resolution > M&A litigation: defense
- M&A/corporate and commercial > Private equity buyouts: large deals ($500m+)
- Real estate > Real estate
- Finance > Restructuring (including bankruptcy): corporate
- Industry focus > Sport
- Tax > US taxes: contentious
- Dispute resolution > General commercial disputes
- M&A/corporate and commercial > M&A: large deals ($1bn+)
- Dispute resolution > Leading trial lawyers
- Dispute resolution > Appellate: courts of appeals / Appellate: supreme courts (states and federal)
- Finance > Commercial lending
- Dispute resolution > Corporate investigations and white-collar criminal defense
- Real estate > Land use/zoning