joined BOK Financial in 1992 as manager of management accounting. He was named controller of management accounting in 1996 and corporate controller in 1999. He became Chief Financial Officer in 2001.

An active community supporter, Nell is a board member of the Community Service Council, YMCA of Greater Tulsa, and a trustee for The Nature Conservancy in Oklahoma. His previous community commitments include serving on the boards of the Jenks Public School Foundation and Street School in Tulsa.

Patrick E. Piper

Executive Vice President, Consumer Banking

Pat Piper is executive vice president, consumer banking services, for BOK Financial, a top 25 US-based financial services company. His responsibilities include all retail delivery and mortgage channels operating under seven brands across eight states, and encompasses the full spectrum of the business unit’s sales, strategyand operations. He is also responsible for BOK Financial’s corporate marketing division.

Piper began his career at Bank of Oklahoma more than 32 years ago in the operations area. Since that time, he has served as manager of consumer banking operations and led a number of significant technology upgrades, introduced new delivery channels and oversaw the consumer banking integration of more than 20 bank acquisitions across six states. Prior to his current position, he served as the head of consumer banking since 2008.

Piper currently serves on the executive committee of the Junior Achievement Oklahoma board of directors and has past experience serving on the Tulsa board of the American Heart Association and chairing the economic development council for Tulsa Public Schools Career and Technology Education.

Board of Directors

George B. Kaiser

Chairman