Operating Engineers Construction Industry and Miscellaneous Pension Fund v. Pioneer Natural Resources Company, C.A. No. 2024-0101-SEM

Pioneer Natural Resources, a Delaware corporation, agreed to be acquired by ExxonMobil in a $59.5 billion all-stock transaction, approved by shareholders in early 2024 and completed in May 2024.
Plaintiff Operating Engineers Construction Industry and Miscellaneous Pension Fund, a Pioneer stockholder, served a Section 220 demand seeking to investigate possible breaches of fiduciary duty by Pioneer’s management and directors, particularly focusing on Scott Sheffield, Pioneer’s founder and former CEO.
Plaintiff alleged that Sheffield, due to his change-in-control benefits, was improperly motivated to support ExxonMobil’s acquisition over an alternative transaction with another party ("Party A").
Pioneer produced extensive formal board materials in response to the demand, but plaintiff sought additional informal communications (emails and texts), especially between Sheffield and ExxonMobil’s CEO, citing a recent FTC Consent Order against Sheffield as grounds for suspicion.
The Senior Magistrate’s Final Report held for Pioneer, finding plaintiff failed to establish a credible basis for wrongdoing or necessity for additional documents; plaintiff filed exceptions to this ruling.
The Chancellor conducted a de novo review, found that the plaintiff met the credible basis threshold, but concluded the existing board materials were sufficient, denying further access to emails/texts.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Did plaintiff show a credible basis to investigate wrongdoing?	Detailed facts and FTC Order give enough basis to suspect possible fiduciary breaches.	No specific facts showing wrongdoing; only unsubstantiated suspicion.	Yes—plaintiff met the low credible basis burden.
Is the plaintiff entitled to inspect emails and texts beyond formal board records?	Needs informal communications to investigate suspected misconduct by Sheffield.	Formal board materials are extensive and sufficient; no specific reason to expand scope.	No—formal board materials are sufficient; no expansion.

Seinfeld v. Verizon Commc’ns, Inc., 909 A.2d 117 (Del. 2006) (establishes the “credible basis” standard for Section 220 demands)
Thomas & Betts Corp. v. Leviton Mfg. Co., Inc., 681 A.2d 1026 (Del. 1996) (stockholders need not prove wrongdoing, just credible allegation)
Saito v. McKesson HBOC, Inc., 806 A.2d 113 (Del. 2002) (defines scope to what is “essential and sufficient” to stockholder’s purpose)
Sec. First Corp. v. U.S. Die Casting & Dev. Co., 687 A.2d 563 (Del. 1997) (balancing test for tailoring Section 220 production orders)