In the discretion of the court, any person who is interested in the subject matter of the suit may intervene.
Tex. Nat. Res. Code § 85.246
INTERVENTION IN SUIT
Acts 1977, 65th Leg., p. 2524, ch. 871, art
Official source: Texas Constitution and Statutes. Reproduced from public-domain Texas statutes; confirm against the official source for the current text. Not legal advice.