Daniel A. Mullen

Steptoe & Johnson LLP

Daniel Mullen counsels clients on energy and commodities enforcement matters and government investigations and litigation, and assists clients with the development of energy regulatory compliance programs. He focuses on defending clients in investigations by the Federal Energy Regulatory Commission (FERC) and US Commodity Futures Trading Commission (CFTC).

His focus was on investigations concerning energy market manipulation, reliability and other 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.

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 existing enforcement regime and oversaw and conducted investigations and litigation against companies participating in the wholesale electricity and natural gas markets.

Bar & Court Admissions:

  • 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


Rate : $$$

What types of cases Attorney Daniel A. Mullen & Steptoe & Johnson LLP can handle?
Steptoe & Johnson LLP can handle cases related to laws concerning Financial Services, Energy Utilities & Environmental. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is Steptoe & Johnson LLP located?
Steptoe & Johnson LLP is located at 1330 Connecticut Ave NW, Washington, DC 20036, USA. You can reach out to Steptoe & Johnson LLP using their phone line 202 429 8004. You can also check their website steptoe.com.
How much would it cost to hire Steptoe & Johnson LLP?
Daniel A. Mullen lawyer charges are specific to each case. However, they work with contingency fees and its ranges from $$ to $$$. They also provide free consultation [and no obligation quotes] if you are interested to hire.
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Steptoe & Johnson LLP
1330 Connecticut Ave NW, Washington, DC 20036, USA
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