No trust company shall declare or pay any dividend to an amount greater than its net undivided profits then on hand, deducting therefrom:
After providing for the deductions set forth, the board of directors of a trust company may, at any regular meeting, declare a dividend out of so much of the net undivided profits of the trust company as they judge expedient. Interest unpaid, although due or accrued, shall not be included in the calculation of net undivided profits.
Okla. Stat. tit. 6, § 409