In Re Pioneer Natural Resources USA, Inc. v. the State of Texas

CourtTexas Court of Appeals, 11th District (Eastland)
DecidedJune 18, 2026
Docket11-26-00131-CV
StatusPublished

This text of In Re Pioneer Natural Resources USA, Inc. v. the State of Texas (In Re Pioneer Natural Resources USA, Inc. v. the State of Texas) is published on Counsel Stack Legal Research, covering Texas Court of Appeals, 11th District (Eastland) primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
In Re Pioneer Natural Resources USA, Inc. v. the State of Texas, (Tex. Ct. App. 2026).

Opinion

Opinion filed June 18, 2026

In The

Eleventh Court of Appeals __________

No. 11-26-00131-CV __________

IN RE PIONEER NATURAL RESOURCES USA, INC.

Original Mandamus Proceeding

OPINION This original proceeding involves the question of whether a defendant’s counsel should be disqualified for his discussions, outside of formal discovery, with a plaintiff’s former in-house counsel and potential witness regarding matters beyond the scope of an existing trial court order that narrowly waived the attorney-client privilege. Relator, Pioneer Natural Resources USA, Inc. (Pioneer), an oil and gas company, filed this original petition for writ of mandamus asserting that Respondent, the Honorable R. Shane Seaton, presiding judge of the 118th District Court of Martin County, clearly abused his discretion by denying Pioneer’s motion to disqualify counsel for Real Parties in Interest, John Paul Merritt; Pony Oil LLC; Pony Oil Operating, LLC; and AXE Energy LLC (Defendants). Pioneer requests that we order Judge Seaton to grant its motion to disqualify. Because we afford great deference to the trial court’s ability to judge the witnesses’ credibility and make appropriate findings of fact, we conclude that the trial court did not clearly abuse its discretion in ruling as it did, and we deny Pioneer’s petition for writ of mandamus. I. Factual and Procedural Background Pioneer sued Defendants for tortious interference, alleging that Defendants acquired “top leases,”1 which interfered with Pioneer’s plan to conduct a horizontal drilling program in Midland and Martin Counties. Pioneer alleged that Defendants’ actions clouded title to its oil and gas interests and caused the delay and cancellation of planned horizontal drilling operations. Pioneer is seeking $534 million in damages in the lawsuit below. 2 After receiving discovery, Defendants believed that Pioneer’s damage model was manufactured strictly for litigation purposes, and they filed several motions, seeking sanctions, to compel discovery, and a dismissal. Approximately one month later, Defendants’ counsel, Robert Vartabedian, arranged to have lunch with Jefferson Rees, Pioneer’s former in-house counsel, who had left the company a year earlier. They alluded to the pending litigation but did not discuss it substantively.

1 “Basically, a top lease is a subsequent oil and gas lease which covers one or more mineral interests that are subject to a valid, subsisting prior lease.” See TRO-X, L.P. v. Anadarko Petroleum Corp., 548 S.W.3d 458, 462 (Tex. 2018) (quoting BP Am. Prod. Co. v. Laddex, Ltd., 513 S.W.3d 476, 478 n.1 (Tex. 2017)). Although the supreme court’s “basic explanation of what a top lease is [does] not expressly say so, commentators accept that a top lease becomes effective as to those mineral interests subject to a bottom lease only upon termination of the bottom lease.” Id. (first quoting Norman J. Hyne, Dictionary of Petroleum Exploration, Drilling & Production 530 (1991) (“[A top lease is an] oil and gas lease on acreage that currently has a valid lease called the bottom lease. When the bottom lease expires, the top lease becomes effective.”); then quoting 8 Howard R. Williams & Charles J. Meyers, Oil and Gas Law: Manual of Oil and Gas Terms 1081 (LexisNexis Matthew Bender 2017) (“[A] lease granted by a landowner during the existence of a recorded mineral lease which is to become effective if and when the existing lease expires or is terminated.”); and then quoting 1 Ernest E. Smith & Jacqueline Lang Weaver, Texas Law of Oil and Gas § 4.5[F] (2d ed. 2015) (“By their nature, top leases delay the new lessee’s rights until the termination of an existing lease.”)). 2 We express no opinion as to the merits of Pioneer’s petition nor the Defendants’ answers and affirmative defenses thereto. 2 Following a hearing on Defendants’ motions, the trial court granted in part their motion to compel discovery, and found that “Pioneer ha[d] waived attorney-client and work product privileges through offensive use” as to the following: a. The narrow topic of the creating and editing of Pioneer’s Rig Schedule (known as PXD049565) and specifically related communications; [and] b. The narrow topic of the decision-making process to add or remove W/2 of Section 3 wells from Pioneer’s Rig Schedule. The trial court ordered Pioneer to produce responsive discovery concerning these issues. The trial court also ordered Pioneer to produce a witness for deposition, while clarifying that the waiver of privilege for the deposition would “be limited to the basics (who, what, where, when, why[,] and how) of creating and editing [Pioneer’s Rig Schedule] ONLY.” The trial court has yet to rule on Defendants’ motion for sanctions based on Pioneer’s alleged perjury and discovery abuse. Approximately four months later, Vartabedian called Rees and discussed the deposition testimony of Pioneer’s in-house counsel, Barry Thomas. According to Vartabedian, the two discussed the trial court’s ordered privilege waiver and Thomas’s deposition testimony regarding the drilling scheduling decisions, which Rees purportedly contradicted. Vartabedian told Rees to review the order and consider if he was willing to testify regarding information within the waiver. A few days later, the two spoke by phone again; according to Vartabedian, they discussed securing independent counsel for Rees as well as Rees’s role in Pioneer’s drilling scheduling decisions. Eleven days later, Vartabedian called Rees but this time he recorded the conversation. The two again discussed Pioneer’s drilling scheduling decisions. Over two months later, but shortly after Rees had secured independent counsel, Defendants produced a redacted version of the recorded conversation to Pioneer and filed the entire recording with the trial court. 3 Pioneer proceeded to file a motion seeking to disqualify Vartabedian and his firm from representing Defendants and for sanctions, contending that they procured information from Rees that went beyond the trial court’s limited waiver and delayed producing the discoverable recorded conversation. The trial court conducted a two- day evidentiary hearing on the motion, during which Rees and Vartabedian testified. The trial court listened to the recorded conversation and reviewed evidence related to the conversations. The trial court also permitted Rees to testify in camera for approximately thirty minutes, without Defendants’ counsel present. Following the hearing, the trial court entered an order granting Pioneer’s motion in part and denying the motion in part. The trial court ordered that no use or mention be made of the recorded conversation or “any alleged conversations with Rees.” It found that much of the conversation “was confidential information . . . that was believed to substantiate what Vartabedian had suspicions of since the beginning of this case (i.e. ‘Pioneer is faking an injury’).” It further found that Rees later disclaimed this information “as incorrect or exaggerated due to his lack of memory or lack of involvement.” The trial court stated that “[t]ailored sanctions can adequately mitigate any prejudice.” The trial court ordered Defendants to turn over any documents relating to conversations with Rees, prohibited Rees from being deposed, and awarded Pioneer attorney’s fees and costs “limited to the costs of briefing/hearing this emergency Motion.” The trial court denied Pioneer’s request for continued abatement, disqualification, and discipline. The trial court issued the following findings of fact and conclusions of law: 1. The Court should apply the analysis from In re Meador, 968 S.W.2d 346 (Tex.

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Bluebook (online)
In Re Pioneer Natural Resources USA, Inc. v. the State of Texas, Counsel Stack Legal Research, https://law.counselstack.com/opinion/in-re-pioneer-natural-resources-usa-inc-v-the-state-of-texas-txctapp11-2026.