Jul. 20--Tulsa-based BOK Financial Corp. posted another positive quarter as the regional banking company saw its earnings grow 11 percent over last year's second quarter.

OVERLAND PARK, Kan., Sept. 8 /PRNewswire/ -- A new agreement with Sprint is delivering upgraded data services and new wireless capabilities to BOK Financial Corp. . BOK Financial Corp. operates four bank subsidiaries - Bank of Oklahoma, N.A., Bank of Arkansas, N.A., Bank of Texas, N.A.