Exxon Mobil — mandamus denied and trial-court stay lifted

Case
In re Exxon Mobil Corporation
Court
Texas First Court of Appeals
Judge
Adams (Greg Abbott, 2020); Rivas-Molloy (elected 2020)
Date Decided
July 16, 2026
Docket No.
01-25-01099-CV
Topics
Mandamus; Summary Judgment; Appellate Procedure
Source
Read the full opinion

Background

Exxon Mobil Corporation sought mandamus relief in an underlying lawsuit filed by Dax McGuiness. The case, Dax McGuiness v. Exxon Mobil Corporation, is pending in the 281st District Court of Harris County before Judge Christine Weems.

Exxon asked the First Court of Appeals to direct the trial court to grant its motion for summary judgment. The appellate court had previously stayed the trial-court proceedings by an order dated January 5, 2026.

The Court’s Holding

In a per curiam memorandum opinion, the First Court of Appeals denied Exxon’s petition for a writ of mandamus under Texas Rule of Appellate Procedure 52.8(a). The court did not discuss the merits of the summary-judgment motion or provide additional reasoning for denying relief.

The court also dismissed all pending motions as moot and withdrew its January 5, 2026 order staying the trial-court proceedings. The underlying litigation may therefore proceed in the district court.

Key Takeaways

  • Exxon did not obtain an appellate order requiring the trial court to grant summary judgment.
  • The memorandum opinion states no substantive basis for the denial beyond citing Texas Rule of Appellate Procedure 52.8(a).
  • The appellate stay was withdrawn, and all pending motions in the mandamus proceeding were dismissed as moot.

Why It Matters

The ruling leaves the trial court’s handling of Exxon’s summary-judgment motion undisturbed and ends the temporary appellate stay. Because the court offered no merits analysis, the opinion provides little broader guidance on summary-judgment or mandamus standards beyond its case-specific disposition.

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