Overview
Dan Mullen, chair of Steptoe's Energy group, counsels clients on energy and commodities enforcement matters and government investigations and litigation, and assists clients with the development of energy regulatory compliance programs. Dan focuses on defending clients in investigations by the Federal Energy Regulatory Commission (FERC) and US Commodity Futures Trading Commission (CFTC).
Prior to joining Steptoe, Dan served as a Division of Investigations Branch Chief within the Office of Enforcement at FERC. In this position, he helped develop FERC's current enforcement regime and oversaw and conducted investigations and litigations against companies participating in the wholesale electricity and natural gas markets. Dan focused on investigations concerning energy market manipulation, reliability and violations of FERC-jurisdictional statutes, regulations and tariffs.
Dan is a frequent speaker at industry conferences, presenting on issues related to energy and commodity enforcement defense.
- District of Columbia
- New York
- New Jersey
- Hon. Allyne R. Ross, US District Court, Eastern District of New York, 1996-1997
- Hon. John R. Bartels, US District Court, Eastern District of New York, 1995-1996
- J.D., Benjamin N. Cardozo School of Law, 1994
- B.A., Tufts University, 1990
Areas of Work
Speaking Engagements
- "Energy Markets Anti-Manipulation Rules," Guest Lecturer, Energy Market Organization Course, Jones Graduate School of Business, Rice University, November 13, 2023
- "What’s New at FERC?," FIA Forum, September 14, 2023
- "Getting Candid About Candor," FIA Webinar April, 19, 2023
- "Energy Markets: Overlap and Distinctions Between CFTC and FERC Regulation and Enforcement," FIA Webinar, February 10, 2022
News & Publications
Client Alerts
November 27, 2023
Press Releases
August 22, 2023
Press Releases
Steptoe Receives 25 Practice, 72 Individual Mentions in Chambers USA 2023
June 1, 2023
Press Releases
Steptoe Receives 16 Practice, 40 Individual Mentions in Chambers Global 2023
February 21, 2023
Press Releases
January 19, 2023
Client Alerts
FERC Proposes NOPR on Backstop Siting Authority
December 19, 2022
Client Alerts
FERC May Face Uphill Battle for Top Enforcement Priorities in 2023
November 29, 2022
By: Daniel A. Mullen, Karen Bruni, Michelle Castaline, Thomas Donadio
Client Alerts
Fifth Circuit Says Nay to SEC ALJs: Implications for FERC
June 8, 2022
By: Daniel A. Mullen
Resources
Client Alerts
Trump Administration Pursues Restrictions to Secure US Electricity Grid
May 11, 2020
By: Jeffrey G. Weiss, Daniel A. Mullen, Wendy Wysong, Ali Burney, Jacob Nelson (International Trade Assistant)
Financial Services Group Advisory
Forecasting the CFTC's 2020 Agenda
January 23, 2020
By: Stacie R. Hartman, Micah S. Green, Daniel A. Mullen, Michael V. Dunn, Richard Shilts
Events
Webinars
January 14, 2021
Speakers: Elizabeth Hurley Burks, N. Hunter Johnston, Daniel A. Mullen
Webinars
Forecasting the CFTC's 2020 Agenda
March 3, 2020
Speakers: Micah S. Green, Stacie R. Hartman, Daniel A. Mullen
Noteworthy
- Best Lawyers in America, Energy Law (2020-2022)
- Chambers Global, Energy: Oil & Gas - Regulatory & Litigation, US (2022-2024)
- Chambers Global, Energy: Electricity - Regulatory & Litigation, US (2024)
- Chambers USA, Energy: Oil & Gas - Regulatory & Litigation, Nationwide (2015-2019, 2022-2023)
- Legal 500 US, Energy: Regulatory and Litigation (2015-2016, 2019)
Previous Employment
- Division of Investigations Branch Chief, Federal Energy Regulatory Commission, Office of Enforcement (2008-2013)
Professional Affiliations
- FIA
- Energy Bar Association
- Infrastructure and Regulated Industries Section, American Bar Association