Oregon Constitution Art. VIII § 2

(a) The proceeds of all lands granted to this state for educational purposes, except the lands granted to aid in the establishment of institutions of higher education under the Acts of February 14, 1859 (11 Stat. 383) and July 2, 1862 (12 Stat. 503).

(b) All the moneys and clear proceeds of all property which may accrue to the state by escheat.

(c) The proceeds of all gifts, devises and bequests, made by any person to the state for common school purposes.

(d) The proceeds of all property granted to the state, when the purposes of such grant shall not be stated.

(e) The proceeds of the five hundred thousand acres of land to which this state is entitled under the Act of September 4, 1841 (5 Stat. 455).

(f) The five percent of the net proceeds of the sales of public lands to which this state became entitled on her admission into the union.

(g) After providing for the cost of administration and any refunds or credits authorized by law, the proceeds from any tax or excise levied on, with respect to or measured by the extraction, production, storage, use, sale, distribution or receipt of oil or natural gas and the proceeds from any tax or excise levied on the ownership of oil or natural gas. However, the rate of such taxes shall not be greater than six percent of the market value of all oil and natural gas produced or salvaged from the earth or waters of this state as and when owned or produced. This paragraph does not include proceeds from any tax or excise as described in section 3, Article IX of this Constitution.