Marissa A. Cocciolone

Area of Emphasis

Marissa Cocciolone is an associate in the Litigation, Energy and Natural Resources, and Mobility, Transport and Safety groups of Babst Calland. Ms. Cocciolone has a broad range of litigation experience in several practice areas including complex commercial litigation and oil and gas law, and has represented clients in both state and federal courts throughout the United States. She frequently assists energy clients with matters including early lease termination, royalty disputes, preliminary injunctions, and eminent domain condemnations. Recently, she spent time working closely with the in-house litigation department of a large natural gas and pipeline transport company, where she managed internal claims as well as civil litigation through outside counsel. In addition, Ms. Cocciolone has represented businesses in a wide variety of litigation matters involving product liability, contract, warranty, and unfair trade practices disputes.


Ms. Cocciolone received her B.A. in English with a concentration in Professional Writing from Washington & Jefferson College in 2009 and received her J.D. from Duquesne University in 2012. During her time there, she received recognition for Outstanding Oral Argument in 2010, and helped resolve custody and child support matters for pro se clients through the university’s Civil and Family Justice Clinic. She also completed an externship with Chief Judge Jeffery A. Deller in the United States Bankruptcy Court for the Western District of Pennsylvania and an internship with retired Judge Gary Caruso in the Court of Common Pleas of Westmoreland County.

Memberships and Affiliations 

Admitted to the state of Pennsylvania, Ms. Cocciolone is a member of the Allegheny County and Pennsylvania Bar associations. She received a 2021 Best Lawyers®: Ones to Watch recognition from BL Rankings for Energy Law.