GableGotwals advised Boardwalk Pipelines, LP, in its acquisition of Spire Marketing Inc., a gas marketing business unit, from Spire Inc. The acquisition marks a significant step in advancing Boardwalk’s long-term growth strategy by expanding its presence across the natural gas value chain.

March 31, 2026 | GableGotwals recently advised Boardwalk Pipelines, LP, in its acquisition of Spire Marketing Inc., a gas marketing business unit, from Spire Inc. The acquisition marks a significant step in advancing Boardwalk’s long-term growth strategy by expanding its presence across the natural gas value chain, enhancing marketing capabilities and customer reach, and increasing flexibility and connectivity for customers while supporting the evolving demands of America’s energy market. Click here to read the full press release.

The transactional team consisted of Stephen W. Lake, Douglas J. May, Jeffrey D. Hassell, James M. Scears (who provided tax advice), and Bailey Barnes.

About Boardwalk Pipelines, LP

Boardwalk Pipelines, LP (“Boardwalk”) delivers reliable energy by connecting natural gas supply with the markets and communities that depend on it. Through an integrated network of interstate and intrastate pipelines and underground storage assets, Boardwalk supports energy reliability, market connectivity, and long-term value creation across the United States, including the Gulf Coast, Midwest, and Southeast. Boardwalk is committed to operating‑safely, reliably, and responsibly while evolving its capabilities to better serve customers in a dynamic and increasingly complex energy market. Learn more at bwpipelines.com.

About GableGotwals

GableGotwals® is a full-service law firm with more than 100 attorneys and 70 other business professionals in Oklahoma and Texas. We represent a diversified client base across the nation, and our connections and reach are global. Fortune 500 corporations, privately owned companies, entrepreneurs, foundations, and individuals entrust us every day with the stewardship and strategic management of their legal challenges.

November 6, 2025 | Best Lawyers®, for the 15th consecutive year, announced the “Best Law Firms” rankings. GableGotwals is ranked in the 2026 list regionally in 55 practice areas. Firms in the “Best Law Firms” list are recognized for professional excellence with consistently impressive ratings from clients and peers. Achieving a tiered ranking signals a unique combination of quality law practice and breadth of legal expertise.

GableGotwals received the following rankings:

Metropolitan Tier 1

Oklahoma City

• Administrative / Regulatory Law
• Bet-the-Company Litigation
• Commercial Litigation
• Construction Law
• Criminal Defense: White-Collar
• Energy Law
• Insurance Law
• Litigation – Banking & Finance
• Litigation – Environmental
• Litigation – Insurance
• Litigation – Real Estate
• Litigation – Securities
• Litigation – Trusts & Estates
• Oil & Gas Law
• Personal Injury Litigation – Defendants

Tulsa

• Appellate Practice
• Arbitration (NEW)
• Banking and Finance Law
• Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law
• Bet-the-Company Litigation
• Commercial Litigation
• Copyright Law
• Corporate Law
• Energy Law
• Family Law
• Gaming Law
• Health Care Law
• Insurance Law
• Land Use & Zoning Law
• Litigation – Banking & Finance
• Litigation – Bankruptcy
• Litigation – ERISA
• Litigation – Patent
• Litigation – Real Estate
• Litigation – Trusts & Estates
• Medical Malpractice Law – Defendants (NEW)
• Mergers and Acquisitions Law
• Native American Law
• Natural Resources Law
• Oil & Gas Law
• Patent Law
• Real Estate Law
• Securities / Capital Markets Law
• Technology Law
• Trademark Law
• Trust & Estates Law

Metropolitan Tier 2

Oklahoma City

• Banking and Finance Law
• Corporate Governance Law
• Corporate Law
• Government Relations Practice
• Health Care Law
• Litigation – Bankruptcy
• Litigation – ERISA
• Litigation – Mergers & Acquisitions
• Litigation – Regulatory Enforcement (SEC, Telecom, Energy)
• Product Liability Litigation – Defendants

Tulsa

• Corporate Compliance Law
• Corporate Governance Law
• Employee Benefits (ERISA) Law
• Employment Law – Management
• Labor Law – Management
• Litigation – Environmental
• Litigation – First Amendment
• Litigation – Health Care
• Litigation – Insurance
• Litigation – Labor and Employment (NEW)
• Mass Tort Litigation/Class Actions – Defendants
• Mediation (NEW)
• Privacy and Data Security Law
• Securities Regulation

Metropolitan Tier 3

Houston

• Commercial Litigation

Oklahoma City

• Native American Law

Tulsa

• Litigation – Intellectual Property

October 1, 2025 | GableGotwals is pleased to announce that Nathan H. Atkins has joined the Oklahoma City office as a Shareholder.

Nathan’s experience includes advising corporate clients regarding private market mergers & acquisitions, commercial finance, joint ventures, securities, investor relations, and general corporate governance. Prior to joining the Firm, Nathan practiced at major international law firms headquartered in New York and Silicon Valley, where he advised private equity and venture capital sponsors and investors in connection with fundraising, operational, and wide-ranging transactional matters. He has also served as in-house general counsel to a global investment firm and SEC registered investment adviser.

“We are excited to expand our transactional capabilities in Oklahoma City with the addition of Nathan,” said Nick Merkley, Managing Shareholder of GableGotwals’ Oklahoma City office. “His national practice and in-house experience offer important perspectives for our clients as they look to us not only as a legal provider but also as a strategic business advisor.”

About GableGotwals
GableGotwals® is a full-service law firm with 100 attorneys and more than 70 other business professionals in Oklahoma and Texas. We represent a diversified client base across the nation, and our connections and reach are global. Fortune 500 corporations, privately owned companies, entrepreneurs, foundations, and individuals entrust us every day with the stewardship and strategic management of their legal challenges.

September 17, 2025 | GableGotwals is pleased to announce that four experienced Associates have joined the Firm.

Caleb Evans is a litigation Associate in the Firm’s Oklahoma City office, where his practice focuses on business and commercial litigation. Prior to joining the Firm, Caleb served as a judicial law clerk to the Honorable David L. Russell of the United States District Court for the Western District of Oklahoma.

Tristan Reagan is a litigation Associate in the Firm’s Tulsa office, where he focuses on general commercial and business litigation. Prior to joining the Firm, Tristan served as a law clerk to the Honorable Susan E. Huntsman and the Honorable Jodi F. Jayne, United States Magistrate Judges for the Northern District of Oklahoma.

Bailey Tulloch is a litigation Associate in the Firm’s Tulsa office, where she focuses on commercial litigation and other business disputes in federal and state courts. Prior to joining the Firm, Bailey served as a law clerk to the Honorable David Alan Ezra of the United States District Court for the Western District of Texas. She also worked as a litigation associate at a national law firm, where she handled a wide variety of matters in state and federal courts, including breach of contract, property disputes, employment matters, white-collar investigations, collections, fiduciary litigation, and Fifth Circuit appeals.

Francesca Walentynowicz is a transactional Associate in the Firm’s Tulsa office, where her practice focuses on banking and commercial law matters. She previously worked as an associate at a Tulsa-based law firm, where she handled a wide variety of commercial law and financial services matters. She also served as a legal intern to the Honorable Gregory K. Frizzell of the United States District Court for the Northern District of Oklahoma and a legal extern with the United States Attorney’s Office for the Northern District of Oklahoma while attending The University of Tulsa College of Law.

Bailey, Caleb, Francesca, and Tristan join more than a dozen other GableGotwals attorneys who have gained valuable experience through judicial clerkships, internships, and externships in federal and state courts.

“My experience as a law clerk provided me with insight into the judicial decision-making process and sharpened my legal research and writing skills, which continues to benefit me and my clients. I am excited to welcome this group of talented young attorneys who bring similar experience to the Firm,” said Amy Fogleman, Director and Shareholder at GableGotwals.

About GableGotwals

GableGotwals® is a full-service law firm with 100 attorneys and more than 70 other business professionals in Oklahoma and Texas. We represent a diversified client base across the nation, and our connections and reach are global. Fortune 500 corporations, privately owned companies, entrepreneurs, foundations, and individuals entrust us every day with the stewardship and strategic management of their legal challenges.

June 9, 2025 | GableGotwals is pleased to announce that Jeni Stallings has joined the Tulsa office as a transactional Associate.

Jeni’s experience includes advising clients on a wide range of corporate transactions, including mergers and acquisitions, joint ventures, and other complex business arrangements involving energy, natural resources, and manufacturing. She has worked on matters related to mineral sourcing, corporate acquisitions, and project development, including coordination with American Indian tribes and tribal lands.

Prior to joining the Firm, Jeni worked at an AmLaw 200 firm and the United States Department of Justice. She served as a Law and Policy Intern in the Environmental and Natural Resources Division of the United States Department of Justice and held a fellowship in public law and policy in Washington, D.C. Her work included legislative analysis, support for land acquisition applications, and legal research under the Indian Child Welfare Act, the National Environmental Policy Act, and the Freedom of Information Act.

“We are excited to have Jeni join GableGotwals’ corporate practice. Her experience in transactional and Native American law is a great addition to the team,” said Tom Hutchison, Co-chair of the Firm’s Business Practice Group.

Jeni earned her J.D. from the University of Virginia School of Law, where she served as Notes Editor for the Virginia Environmental Law Journal. She received a B.A. from Dartmouth College and currently serves on the Dartmouth College Native American Alumni Association Board of Directors. She is a citizen of the Cherokee Nation.

She is admitted to practice in Colorado and the District of Columbia, and her admission in Oklahoma is pending.

About GableGotwals

GableGotwals® is a full-service law firm with nearly 100 attorneys and more than 70 other business professionals in Oklahoma and Texas. We represent a diversified client base across the nation, and our connections and reach are global. Fortune 500 corporations, privately owned companies, entrepreneurs, foundations, and individuals entrust us every day with the stewardship and strategic management of their legal challenges.

GableGotwals served as legal counsel for Chickasaw Community Bank in its stock purchase agreement to acquire Oklahoma Heritage Bank.

May 5, 2025 | GableGotwals is pleased to announce that Mark Nawfal has joined the Houston office as Of Counsel, where his practice will focus on mergers and acquisitions, taxation, and energy law.

Mark has more than 15 years of international legal experience advising multinational companies, private equity funds, and partnerships on a wide range of corporate and transactional matters. He represents clients in domestic and cross-border mergers and acquisitions, joint ventures, leveraged buyouts, restructurings, corporate governance, inbound and outbound tax planning, tax efficient restructuring, foreign investment matters, energy infrastructure projects, and the negotiation of complex commercial contracts. Mark also counsels clients on U.S. compliance and anti-corruption laws.

Prior to joining the Firm, Mark practiced at law firms in Houston, New York, and the Middle East.

“We are excited to welcome Mark to GableGotwals as we continue to expand our Houston office. His extensive international experience in mergers and acquisitions, taxation, compliance, and anti-corruption enhances our ability to serve clients across various industries. Mark’s addition reflects our ongoing commitment to strategically growing our presence in Texas and delivering excellent legal services to our clients,” said John Dale, CEO of GableGotwals.

Mark earned his J.D. from Northeastern University School of Law, holds an LL.M. in Global Energy from The University of Texas at Austin School of Law, and an LL.M. in Taxation with a Certificate in International Taxation from Georgetown University Law Center. He received his B.A. in Economics and International Relations from Tufts University. Mark is admitted to practice in Texas, New York, and Florida.

About GableGotwals

GableGotwals® is a full-service law firm with nearly 100 attorneys and more than 70 other business professionals in Oklahoma and Texas. We represent a diversified client base across the nation, and our connections and reach are global. Fortune 500 corporations, privately owned companies, entrepreneurs, foundations, and individuals entrust us every day with the stewardship and strategic management of their legal challenges.