John is a summa cum laude graduate of the University of Miami with a Bachelor of Business Administration and a high honors graduate of the University of Texas School of Law. While in law school, John served as the editor-in-chief of the Texas Law Review and he received the honors of a member in the UT Chancellors and the Order of the Coif. He served as a judicial law clerk for Ninth Circuit Court of Appeals Judge Joseph Sneed in 1983-84 and for District of Massachusetts Judge Robert Keeton in 1984-85. John Dzienkowski began his teaching career at Tulane Law School in New Orleans and he joined the Texas faculty in 1988. John was a visiting professor at the George Washington University School of Law in 1992-93 and at Cornell Law School in 1995. In Spring 2002, John visited the University of Florida Levin College of Law as the Hurst Eminent Visiting Scholar, and in Fall 2002, he visited the University of Alabama School of Law as the Francis Hare Visiting Chair in Tort Law.
John Dzienkowski teaches and writes in the areas of professional responsibility of lawyers, real property, international energy transactions, and oil and gas taxation. He is widely regarded as one of the most dynamic and effective speakers on topics of professional responsibility and he has delivered almost one hundred ethics presentations to in-house corporate departments, large and small law firms, state bar continuing legal education programs, and law faculties throughout this country. In 2005, John received the Texas Exes Faculty Teaching Award for excellence in teaching. He is a four-term member of the drafting committee of the Multistate Professional Responsibility Examination.
In the area of professional responsibility of lawyers, John has authored leading articles on topics relating to conflicts of interest in lawyering: "Positional Conflicts of Interest" (71 Texas Law Review 457), "Lawyers as Intermediaries" (1992 Illinois Law Review 741), "Multidisciplinary Practice of Law" (69 Fordham Law Review 83) (with Bob Peroni), and "Lawyer Equity Investments in Clients" (81 Texas Law Review 405) (with Bob Peroni). He is the editor of the leading statutory supplement on PROFESSIONAL RESPONSIBILITY: STANDARDS, RULES, AND STATUTES and a co-author of a casebook on PROFESSIONAL RESPONSIBILITY OF LAWYERS (1988 and 2002) (with John Sutton). In 2005, John joined Ronald Rotunda as a co-author of Legal Ethics: A Lawyer's Deskbook on Professional Responsibility (2005). In the area of natural resources, John is a founding co-author of the first commercially produced casebooks on NATURAL RESOURCES TAXATION (1988) and INTERNATIONAL PETROLEUM TRANSACTIONS (1993 and 2000). He is also a co-author of a leading treatise on oil and gas law and taxation, HEMINGWAY'S OIL AND GAS LAW AND TAXATION (2004). John is also the co-chair of a bi-annual UT Program on Oil and Gas Taxation co-sponsored with the Internal Revenue Service. John Dzienkowski, along with John Steele and Bradley Wendel, have co-founded www.legalethicsforum.com, a leading blog on issues related to legal ethics.