(215 ILCS 5/166) (from Ch. 73, par. 778)
    Sec. 166. Effect of merger or consolidation.
    (1) If the surviving or new company is a domestic company, when such merger or consolidation has been effected
    (a) the several companies parties to the agreement of merger or consolidation shall be a single company, which, in the case of a merger, shall be that company designated in the agreement of merger as the surviving company, and in the case of a consolidation, shall be the new company provided for in the agreement of consolidation;
    (b) the separate existence of all of the companies parties to the agreement of merger or consolidation, except the surviving company in the case of a merger, shall cease;
    (c) such surviving or new company shall have all of the rights, privileges, immunities and powers and shall be subject to all of the duties and liabilities granted or imposed by this Code;
    (d) such surviving or new company shall thereupon and thereafter possess all the rights, privileges, immunities, powers and franchises of a public as well as of a private nature, of each of the companies so merged or consolidated; and all property, real, personal and mixed, and all debts due on whatever account, including subscriptions to shares, assessments payable from members or policyholders, and all other choses in action and all and every other interest of, or belonging to or due to, each of the companies so merged or consolidated shall be deemed to be transferred to and vested in such surviving or new company without further act or deed; and the title to any real estate, or any interest therein, under the laws of this State vested in any of such companies shall not revert or be in any way impaired by reason of such merger or consolidation;
    (e) such surviving or new company shall thenceforth be responsible and liable for all the liabilities and obligations of each of the companies so merged or consolidated; any claim existing or action or proceeding pending by or against any of such companies may be prosecuted to judgment as if such merger or consolidation had not taken place, or such surviving or new company may be substituted in its place; neither the rights of creditors nor any liens upon the property of any of such companies shall be impaired by such merger or consolidation, but such liens shall be limited to the property upon which they were liens immediately prior to the time of such merger or consolidation, unless otherwise provided in the agreement of merger or consolidation; and
    (f) in case of a merger, the articles of incorporation of the surviving company shall be supplanted and superseded to the extent, if any, that any provision or provisions of such articles shall be restated in the agreement of merger as provided in section 158, and such articles of incorporation, shall be deemed to be thereby and to that extent amended; in case of a consolidation, the statements set forth in the agreement of consolidation as provided in section 158 shall be deemed to be articles of incorporation of the new company formed by such consolidation.
    (2) If the surviving or new company is a foreign or alien company, when such merger or consolidation has become effective in this State
    (a) the effect of the merger or consolidation shall be determined by the law of the state of incorporation or organization of such company;
    (b) the separate existence of all domestic companies parties to the plan of merger or consolidation shall cease;
    (c) all property, real, personal, and mixed, and all debts due on whatever account including subscriptions to shares, assessments payable from members or policyholders and all other choses in action and all and every other interest of or belonging to and due to each of the companies so merged or consolidated shall be taken and deemed to be transferred to and vested in such surviving or new company without further act or deed, and the title to any real estate, or any interest therein, shall not revert or be in any way impaired by reason of such merger or consolidation.
    (3) In the event of a merger or consolidation under this article, the surviving company or the consolidated company shall be considered as having the age of the oldest company which is a party to such merger or consolidation for the purpose of complying with requirements of the laws relating to age of company.
(Source: Laws 1937, p. 696.)