Business/Financial Results (Form 8-K)

[NEWS RELEASE LETTERHEAD OF CROSS TIMBERS ROYALTY TRUST APPEARS HERE]

CROSS TIMBERS ROYALTY TRUST

DECLARES MAY CASH DISTRIBUTION

Dallas, Texas, May 18, 2026 - Argent Trust Company, as Trustee of the Cross Timbers Royalty Trust (the "Trust") (NYSE: CRT), today declared a cash distribution to the holders of its units of beneficial interest of $0.029624 per unit, payable on June 12, 2026, to unitholders of record on May 29, 2026. The following table shows underlying oil and gas sales and average prices attributable to the current month and prior month distributions.

Excess Costs

XTO Energy has advised the Trustee that $3,000 of excess costs were recovered on properties underlying the Texas Working Interest net profits interests. However, after the partial recovery, there were no remaining proceeds from the properties underlying the Texas Working Interest net profits interests to be included in this month's distribution. Underlying cumulative excess costs remaining on the Texas Working Interest net profits interests total $5,893,000, including accrued interest of $1,626,000.

XTO Energy has advised the Trustee that $52,000 of excess costs were recovered on properties underlying the Oklahoma Working Interest net profits interests. However, after the partial recovery, there were no remaining proceeds from the properties underlying the Oklahoma Working Interest net profits interests to be included in this month's distribution. Underlying cumulative excess costs remaining on the Oklahoma Working Interest net profits interests total $972,000, including accrued interest of $19,000.

For more information on the Trust, including the annual tax information, distribution amounts, and historical press releases, please visit our website at www.crt-crosstimbers.com.

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