In addition, the Sr Credit Specialist may retain a primary leadership role in the department, managing/delegating departmental workflow, proactively communicating with Relationship Managers and lower level Credit Specialists, and resolving conflicts that arise when working under limited timeframes. BOK Financial, Headquartered in Tulsa, Oklahoma, BOK Financial Corporation (NASDAQ: BOKF) is a top U.S.-based financial services holding company with operations in Oklahoma, Texas, Arizona, Arkansas, Colorado, Kansas, Missouri, Tennessee and New Mexico.