& Electric Experts
Rhode Island Ave, NW
Washington, DC 20036-3116
|John & Hengerer is a
Washington, D.C. law partnership, originally founded by Douglas
F. John, Edward W. Hengerer and Peter G. Esposito on April 1,
1986. Before formation of the Firm, the three founding partners,
with their almost 60 years of energy law experience, constituted
the Energy Group of the Washington, D.C., office of McDermott,
Will & Emery. Douglas F. John, the
remaining senior partner, has had both private sector and
One or more members of the Firm are licensed to practice law in
each of the following states: District of Columbia, Maryland,
New York, and Texas.
| graduated from Brown University in 1970 and from the University of Texas Law
School in 1974. He worked for the Federal Power Commission until
1977, at which time he went into private practice, first at
Akin, Gump, Strauss, Hauer & Feld and then at McDermott, Will &
Emery, where he became a partner in 1981.
(Retired) graduated from Colgate University in 1968 and
from The George Washington University Law School in 1973. He
worked at the Federal Power Commission from 1974 through 1978,
was General Counsel of the Office of the Federal Inspector for
the Alaska Natural Gas Transportation System from 1979 to 1983,
and then joined McDermott, Will & Emery, where he became a
partner in 1984.
joined the partnership in early November 1991. Mr.
Sweeney is a 1978 graduate of the College of William and Mary
and a 1981 graduate of The George Washington University Law
School. From 1981 until 1990, he practiced with the Washington,
D.C. law firm of Grove, Jaskiewicz, Gilliam and Cobert, where he
became a partner in 1988. Mr. Sweeney’s practice is concentrated
in natural gas industry regulation, with a particular focus on
issues affecting gas producers. In February 1990, he and several
members of the Grove, Jaskiewicz firm joined the Washington,
D.C. office of Katten, Muchin & Zavis.
(Of Counsel) joined the partnership in August 1992. Mr. Clark is a
1970 honors graduate of Colgate University and a 1973 graduate
from Albany Law School of Union University. From 1973 until
1977, he worked as a trial attorney at the Federal Power
Commission, and from 1977 until 1979, as Legal Advisor to Vice
Chairman Don S. Smith, Federal Energy Regulatory Commission.
After leaving government service, Mr. Clark went into private
practice, from 1979 through 1988, at Akin, Gump, Strauss, Hauer
& Feld and, from 1988 through 1992, at Andrews & Kurth.
joined the partnership in January 1995. Mr. Smith
graduated from Vanderbilt University in 1985 and from The George
Washington University School of Law in May 1988. Before joining
the Firm as an associate in May 1990, Mr. Smith worked as an
Attorney-Advisor to Administrative Law Judges Birchman and
Lewnes at the Federal Energy Regulatory Commission (FERC).
joined the partnership in
January 2004. Mr. Rick graduated with honors from Michigan State
University in 1996 and received his law degree from The George
Washington University School of Law in 1999. Before joining the
Firm as an associate in September 1999, Mr. Rick worked for the
Firm as a law clerk.
joined the partnership in 2008. Ms. Zembruski graduated from Hofstra University in 1997 and
received her law degree from Georgetown University Law Center in 2000. She is a member of Phi Beta Kappa. During law school, Ms.
Zembruski worked as a law clerk to an administrative law judge panel at the Nuclear Regulatory Commission.
Ms. Zembruski joined the Firm as an associate in 2000.