The limits are as stated in Reg O 215.4(c)-(d). The issue is how you figure those limits based upon the definition of capital under Tit. 6 O.S. Sec. 102(8) as applied to Tit. 6 O.S. Sec. 802 since you must deduct intangible assets (if any) in determining the lending limits.
By PM, I am sending you the differences in how these are calculated for an Oklahoma bank versus a national bank.