Texas Natural Resources Code - NAT RES § 161.173. Investment of Money in Fund

(1) direct security repurchase agreements and reverse security repurchase agreements made with state or national banks that have main offices or branch offices in this state or with primary dealers as approved by the Federal Reserve System;

(2) direct obligations of or obligations the principal and interest of which are guaranteed by the United States;

(3) direct obligations of or obligations guaranteed by the Federal Home Loan Banks, the Federal National Mortgage Association, the Federal Farm Credit System, the Student Loan Marketing Association, the Federal Home Loan Mortgage Corporation, or a successor organization to one of those organizations;

(4) bankers' acceptances that:

(5) commercial paper that:

(6) contracts written by the board in which the board grants the purchaser the right to purchase securities in the board's marketable securities portfolio at a specified price over a specified period and for which the board is paid a fee and specifically prohibits naked-option or uncovered option trading;

(7) obligations of a state or an agency, county, city, or other political subdivision of a state, including revenue bonds issued under Chapter 164, and mutual funds composed of these obligations;

(8) an investment instrument, obligation, or other evidence of indebtedness the payment of which is directly or indirectly guaranteed by the full faith and credit of the United States;

(9) an investment, account, depository receipt, or deposit that is fully:

(10) a collateralized mortgage obligation fully secured by securities or mortgages issued or guaranteed by the Government National Mortgage Association (GNMA) or any entity described by Subdivision (3) of this subsection;

(11) a security or evidence of indebtedness issued by the Farm Credit System Financial Assistance Corporation, the Private Export Funding Corporation, or the Export-Import Bank;  and

(12) any other investment authorized for investment of state funds by the comptroller under Section 404.024, Government Code.

(1) “Direct security repurchase agreement” means an agreement under which the board buys, holds for a specified time, and then sells back any of the following securities, obligations, or participation certificates:

(2) “Market value” means the fair and reasonable prevailing price at which a security is being sold on the open market at the time of the appraisement of the security by the board.

(3) “Reverse security repurchase agreement” means an agreement under which the board sells and after a specified time buys back any of the securities, obligations, or participation certificates listed in Paragraphs (A) through (D) of Subdivision (1) of this subsection.