Mark C. Williams

Mark Williams advises and represents energy companies and their investors in Federal energy industry corporate, financial, securities, and transactional regulatory matters before the Federal Energy Regulatory Commission (FERC).  He acts for private equity fund managers, generating company fleets, lenders, sovereign and other governmental investors, and project developers, as transaction-specific or as regular portfolio counsel.

Mark has represented investors in transactions involving over 44,000 MW of electric generation capacity and more than 29,000 miles of natural gas pipelines. He has played a critical role in protecting regulatory exemptions for renewable and high-efficiency qualifying facilities. Mark has also guided buyers and sellers of generating assets and interests through regulatory strategy and formal application processes. Over the past decade, he has consistently maintained one or more M&A applications before FERC, where he has successfully defended clients, including private equity and insurance investors, in high-profile cases such as FERC's 2003–2004 Enron proceedings, leading to the public exoneration of his clients.

In addition to his work in private practice, Mark served as the sole attorney in the Division of Corporate Applications at FERC. There, he advised on mergers, divestitures, financings, and independent power projects, leading over 100 commission orders on regulatory matters. Mark also spearheaded FERC's review of generation facility sales, utility restructuring transactions, and Regional Transmission Organization (RTO) proposals, including the acquisition of a U.S. utility by a foreign entity.