Tex. Utilities Code § 11.005: ENTITY, COMPETITOR, OR SUPPLIER AFFECTED IN MANNER OTHER THAN BY SETTING OF RATES.

In this title, an entity, including a utility competitor or utility supplier, is considered to be affected in a manner other than by the setting of rates for that class of customer if during a relevant calendar year the entity provides fuel, utility-related goods, utility-related products, or utility-related services to a regulated or unregulated provider of telecommunications or electric services or to an affiliate in an amount equal to the greater of $10,000 or 10 percent of the person's business.

Acts 1997, 75th Leg., ch. 166, Sec. 1, eff. Sept. 1, 1997.