Areas of Expertise

William K.



William K. Elias is a founding Partner of Elias Books. Bill has more than 40 years of experience practicing primarily in the areas of property taxation and state and local property tax litigation, oil and gas litigation, and commercial litigation. He has successfully represented clients before administrative boards and tribunals, federal and state trial courts, and federal and state appellate courts, including the Oklahoma Supreme Court and Oklahoma Court of Civil Appeals.

Bill is active in national and state legal organizations. Through Bill's leadership, the firm became the Oklahoma member of the American Property Tax Counsel (APTC), a national association of preeminent law firms practicing in property taxation. Bill has been a guest lecturer on oil and gas and property tax related matters at numerous seminars sponsored by the Oklahoma Bar Association, the Oklahoma Association of Tax Representatives (OATR), and the Institute for Professionals in Taxation (IPT). Bill is a past recipient of the Distinguished Service Award from the Oklahoma Mid-Continent Oil & Gas Association for outstanding service to the petroleum industry.

Bill received his Bachelor of Arts in Political Science from Oklahoma State University in 1977 and his Juris Doctor with honors from the University of Tulsa in 1981.

Areas of Expertise


1981 - Juris Doctor, University of Tulsa
1977 - Bachelor of Arts in Political Science, Oklahoma State University

Professional Admissions

1981 - Oklahoma
1981 - U.S. District Court for the Western District of Oklahoma
1985 - U.S. District Court for the Eastern District of Oklahoma
1994 - U.S. District Court for the Northern District of Oklahoma
1986 - U.S. Court of Appeals for the Tenth Circuit
1995 - U.S. Supreme Court
2013 - Arkansas

Professional Affiliations

American Property Tax Counsel
Institute for Professionals in Taxation
Mineral Lawyers Society of Oklahoma City
Oklahoma Association of Tax Representatives
Oklahoma Bar Association
Oklahoma Bar Association Tax and Mineral Law Sections
Oklahoma County Bar Association
Petroleum Alliance of Oklahoma


Best Lawyers®: Oil and Gas Law (2023)
Super Lawyers by Thomson Reuters (2006-2007)
405 Magazine Top Attorney in Tax Law (2023)

Civic Involvement and Leadership

Publications and Presentations

Delivers semi-annual legal updates for the Oklahoma Association of Tax Representatives

Regular speaker on best practices and property tax legal updates at Annual American Property Tax Counsel Seminars

Past lecturer at American Bar Association/Institute for Professionals in Taxation Ad Valorem Tax Conferences

Past lecturer at Institute for Professionals in Taxation Annual Conferences

Past lecturer at The Eugene Kuntz Conferences on Natural Resources Law and Policy

Oklahoma Courts Rule Low-Income Housing Tax Credits Shouldn't Be Treated As Property Income, National Real Estate Investor Online (July 27, 2011)

About Us

At Elias, Books, Brown & Nelson, our attorney roster is as diverse as the areas of law we practice. From recent JDs to seasoned partners, the EBB&N team has a history of success and expertise in the areas of Oil & Gas Law, Property Tax, Corporate Law, Commercial Law and Litigation.

A tradition of excellence.